CN101515723A - Multi-power source hybrid power installation - Google Patents
Multi-power source hybrid power installation Download PDFInfo
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- CN101515723A CN101515723A CNA2008100072165A CN200810007216A CN101515723A CN 101515723 A CN101515723 A CN 101515723A CN A2008100072165 A CNA2008100072165 A CN A2008100072165A CN 200810007216 A CN200810007216 A CN 200810007216A CN 101515723 A CN101515723 A CN 101515723A
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Abstract
The invention relates to a multi-power source hybrid power installation, which comprises a fuel battery power supply circuit, an power input circuit and a secondary battery power supply circuit, wherein the fuel battery power supply circuit comprises a fuel battery unit, an electrical switch and a fuel battery voltage converting unit, and the fuel battery unit is electrically connected with the fuel battery voltage converting unit; the power input circuit is input by DC power; the secondary battery power supply circuit comprises a secondary battery unit and a secondary battery voltage converting unit; and the fuel battery power supply circuit, the power input circuit and the secondary battery power supply circuit are parallelly connected electrically. The power installation integrates various power supply devices according to different power requirement conditions, and the power supply devices are mutually matched to separately or together output power, so that the various power supply devices have stable output to supply a loading end with the required power.
Description
Technical field
The invention relates to a kind of multi-power source hybrid power installation, it is particularly utilizing different power supply devices to cooperatively interact, the electricity needs that provides load end to need.
Background technology
Fuel cell learns by the operating characteristic of fuel cell in the prior art, and when an external load, its voltage-current characteristic can have the phenomenon of subsideing pressure drop in transient voltage curve place, is referred to as transcend quantity.When fuel cell is not enough to suddenly a large amount of electricity needs of offered load end, might consequential injury to the running of fuel cell itself.
In addition in existing fuel cell technology, fuel cell is in start-up course each time, must be by the activation procedure of fuel cell, make fuel cell can enter normal electrochemical reaction, reaching specified power output, so the required consideration when being fuel cell start-up of the power source of activation procedure.
Because fuel cell system can increase because of the suddenly a large amount of electricity needs of load end at present, and causes fuel cell itself to be damaged, therefore, the present invention is because the disappearance of existing fuel cell is urgently to think to invent a kind of multi-power source hybrid power installation that utilizes.
Summary of the invention
Main purpose of the present invention provides a multi-power source hybrid power installation, it has a fuel cell power supply circuit, an electric power input circuit, a secondary cell electric power supply circuit and a charge circuit, above-mentioned this fuel cell power supply circuit, this electric power input circuit and this secondary cell electric power supply circuit are electric being connected in parallel, integrate several power supply devices according to different electricity needs situations, and form alone or collaborative output power, and make each power supply device can stablize output.
Another purpose of the present invention is a charge circuit that has a secondary battery cell and provide this secondary battery cell to charge, in order to cooperate the required electric power in loop of fuel-cell device supply load, and power or voltage and size of current when regulating secondary cell charge simultaneously make fuel-cell device can export the electric power of stable size.
Still a further object of the present invention provides a mixed electric power device for fuel cell, and its fuel cell power supply circuit and secondary cell electric power supply circuit have the direct voltage converting unit respectively, in order to control the voltage that export in each loop.
For reaching above-mentioned order ground, multi-power source hybrid power installation of the present invention, comprise: a fuel cell power supply circuit, it comprises a cell of fuel cell, an electric switch and a fuel battery voltage converting unit, this cell of fuel cell is a fuel cell force generating apparatus, this fuel battery voltage converting unit is a voltage of power conversion equipment, and this cell of fuel cell is electrically connected this electric switch, and this electric switch other end connects this fuel battery voltage converting unit; One electric power input circuit, it is general direct current power input; An and secondary cell electric power supply circuit, it comprises a secondary battery cell and a secondary cell voltage converting unit, this secondary battery cell is an electrical storage device that can discharge and recharge, this secondary cell voltage converting unit is a voltage of power conversion equipment, control the electric power output apparatus of this secondary cell electric power supply circuit supply, this secondary cell one end is electrically connected to this secondary cell voltage converting unit; This charge circuit is a power control unit, in order to the charging behavior of control to this secondary battery cell, this charge circuit input is electrically connected the output of this fuel cell power supply circuit, the output of this charge circuit is electrically connected to this secondary battery cell, above-mentioned this fuel cell power supply circuit, this electric power input circuit and this secondary cell electric power supply circuit are electric being connected in parallel, in order to supply with the required electric power of a load end.Transferring electric power and load end demand electric power according to this fuel cell power supply circuit compare, when the transferring electric power of fuel cell power supply circuit greater than this load end electricity needs, the electric power that this fuel cell is unnecessary comes this secondary cell is carried out the charging behavior to control this charhing unit, is fixedly electric power output power to set to keep this fuel cell; When in addition this fuel cell power supply circuit is unable to supply electric power and maybe can't be loaded the required electric power of this load end, change by this secondary cell and undertaken electric; In addition this electric power input circuit is if start, and then will regulate this fuel cell power supply circuit and be output power not, changes the electricity needs that this load end is provided by this electric power input unit, and this secondary cell is charged.
The present invention utilizes hybrid power installation, utilizes other secondary cell or other DC power supply to assist, and supplying with the electric power of guaranteeing load end does not have anxiety, and protection fuel cell itself.
For making purpose, feature and the effect of being familiar with this skill personage and understanding the present invention, now by following specific embodiment, and cooperate graphic, to the present invention illustrate in detail as after.
Description of drawings
The component liaison figure of shown multi-power source hybrid power installation one specific embodiment of the present invention of Fig. 1;
The component liaison figure of second specific embodiment of the shown multi-power source hybrid power installation of the present invention of Fig. 2;
The component liaison figure of the 3rd specific embodiment of the shown multi-power source hybrid power installation of the present invention of Fig. 3;
The component liaison figure of the 4th specific embodiment of the shown multi-power source hybrid power installation of the present invention of Fig. 4;
The component liaison figure of the 5th specific embodiment of the shown multi-power source hybrid power installation of the present invention of Fig. 5;
The signal controlling schematic diagram of the shown multi-power source hybrid power installation of the present invention of Fig. 6; And
Another signal controlling schematic diagram of the shown multi-power source hybrid power installation of the present invention of Fig. 7.
Embodiment
With reference to shown in Figure 1, it is the component liaison figure of tool multi-power source hybrid power installation one specific embodiment of the present invention.The invention relates to a kind of tool multi-power source hybrid power installation, it comprises a fuel cell power supply circuit (100), one electric power input circuit (200), one secondary cell electric power supply circuit (300), one charge circuit (400) and a control unit (8), aforementioned this fuel cell power supply circuit (100), this electric power input circuit (200) and this secondary cell electric power supply circuit (300) are electric parallel connection, make this fuel cell power supply circuit (100), the electric power that this electric power input circuit (200) and this secondary cell electric power supply circuit (300) provide respectively, can be according to different situations, provide this load (9) required electric power respectively or collaborative export a load (9) to.
In the aforementioned tool multi-power source hybrid power installation of the present invention, this fuel cell power supply circuit (100) is to utilize this cell of fuel cell (1) to produce the electric loop of electric power output, and it can further comprise one first electric switch (2) and a fuel battery voltage converting unit (3).This cell of fuel cell (1) is to utilize hydrogen-rich fuel and oxygen to carry out chemical reaction and the power generating device that produces electric power output; This first electric switch (2) is an appliance switch, and can to select this fuel cell power supply circuit (100) be electrically conducting state or electrical open state; This fuel battery voltage converting unit (3) is a direct current voltage of power conversion equipment, and can include direct current power booster circuit or direct current power reduction voltage circuit, and the direct current power with input is converted to the direct current power output with specific voltage thus.Wherein this cell of fuel cell (1) is electrically connected an end of this first electric switch (2), this first electric switch (2) other end is electrically connected in this fuel battery voltage converting unit (3), and the output of this fuel battery voltage converting unit (3) is the output of this fuel cell power supply circuit (100).Therefore, when this cell of fuel cell (1) produces electric power output, and when this first electric switch (2) is selected this fuel cell power supply circuit (100) for the electrically conducting state, the electric power that this cell of fuel cell (1) is exported can transfer to this fuel battery voltage converting unit (3), and carry out the direct current power conversion, and make this fuel cell power supply circuit (100) output have the direct current power of specific voltage.
Aforementioned electric power input circuit (200) is a direct current electric power input unit, and this electric power input circuit (200) output is electrically connected to the output of this fuel cell power supply circuit (100) and the output of this secondary cell electric power supply circuit (300).Wherein, this electric power input circuit (200) comprises that one can provide the DC power supply of high-power electric.
Moreover, in aforementioned many power supplys of the present invention hybrid power installation, this secondary cell electric power supply circuit (300) comprises a secondary battery cell (6) and a secondary cell voltage converting unit (7), wherein this secondary battery cell (6) is a chargeable electrical storage device, this secondary cell voltage converting unit (7) one end is electrically connected to the voltage conversion device of a direct current electric power of this secondary battery cell (6), and can include direct current power booster circuit or direct voltage reduction voltage circuit, the direct current power of thus this secondary battery cell (6) being imported the input of this secondary cell voltage converting unit (7) is converted to the direct current power output with specific voltage, the output of this secondary cell voltage converting unit (7) is the output of this secondary cell electric power supply circuit (300), and the power output end of this secondary cell electric power supply circuit (300) is electrically connected the power output end of this fuel cell power supply circuit (100) in addition.
In aforementioned many power supplys of the present invention hybrid power installation, this charge circuit (400) is a power conversions and adjusting device, supply electric power or electric current and the voltage swing that this secondary battery cell (6) is charged in order to control, the power input end of this charge circuit (400) is electrically connected the output of this fuel cell power supply circuit (100) and this electric power input circuit (200), and the power output end of this charge circuit (400) is electrically connected this secondary battery cell (6).
In aforementioned many power supplys of the present invention hybrid power installation, this control unit (8) is for having the electric device of logic determines and control, and it can be that an electronic loop or microcontroller and necessary circuitry thereof constitute.The control signal output ends of controlling in this control unit (8) can be electrically connected to this first electric switch (2), this fuel battery voltage converting unit (3), this charge circuit (400) and this secondary cell voltage converting unit (7), this control unit (8) is regulated the output voltage of fuel battery voltage converting unit (3) with the secondary cell voltage converting unit (7) of this secondary cell electric power supply circuit (300) of this fuel cell power supply circuit (100), and this control unit (8) will be controlled the start of this charge circuit (400) in addition.
Aforesaid load (9) is a power consuming device, and it can be electronic installations such as notebook computer, also can be to comprise the fuel cell system peripheral unit.Yet this load (9) only provides embodiment in the present invention required illustration is described, is not the electric component that the present invention desires to include.
The power that is provided when this cell of fuel cell (1) is during greater than the required bearing power of this load (9), then unnecessary electric power will be controlled this charge circuit (400) by this control unit (8) this secondary battery cell (6) will be charged, to store the unnecessary electric energy that this cell of fuel cell (1) is produced; The underpower that the cell of fuel cell that is provided when this cell of fuel cell (1) is exported is when providing the required bearing power of this load (9), can provide auxiliary power by this secondary cell supply circuit (300), the power of this cell of fuel cell (9) output and the power of this secondary cell electric power supply circuit (300) output are summed up with the required bearing power of this load (9) and are equated.
In addition aforementioned when this cell of fuel cell (1) when just starting or the fuel concentration of this cell of fuel cell (1) body when being not enough to produce enough electric power and dealing with this load (9) end and operate, the electricity needs of this load (9) end can be provided by this electric power input circuit (200) or secondary battery cell (6), this load this moment (9) is mainly the peripheral system of this cell of fuel cell (1), as fan, fuel supply system etc., after this cell of fuel cell (1) started, then changing by this cell of fuel cell (1) provided this load (9) end required electricity needs.
The situation that this electric power input circuit (200) has electric power to provide is provided in addition, this control unit (8) will be regulated the output voltage of the output voltage of this fuel cell power supply circuit (100) and this secondary cell electric power supply circuit (300) less than this electric power input circuit (200), this load (9) end can directly provide power source by this electric power input circuit (200), when the power output of this electric power input circuit (200) is held required bearing power greater than this load (9) in addition, the unnecessary electric power of this electric power input circuit (200) can charge to this secondary battery cell (6) by this charge circuit (400), when the power of being exported when this electric power input circuit (200) was held required bearing power less than this load (9) in addition, then collaborative this fuel cell power supply circuit (100) was given this load (9) with this secondary cell electric power supply circuit (300) supply capability.
With reference to shown in Figure 2, it is the component liaison figure of second specific embodiment of multi-power source hybrid power installation of the present invention.Present embodiment is the more specifically enforcement aspect of aforementioned this fuel battery voltage converting unit (3) of the present invention and this secondary cell voltage converting unit (7), this fuel battery voltage converting unit (3) is identical with this its modular construction of secondary cell voltage converting unit (7), it can be for flow the electric power booster circuit or be a direct current electric power reduction voltage circuit always, and this is that a direct current electric power booster circuit is an example with this fuel battery voltage converting unit (3).It comprises a voltage transitions assembly (31), a control assembly (32), a feedback component (33), a dividing potential drop assembly (34), a voltage modulation assembly (35), a sensing component (36), one first DC power supply input circuit (101) and one first DC power supply output loop (102) this fuel battery voltage converting unit (3), in order to the direct current power that this first DC power supply input circuit (101) is imported, be converted to the direct current power of a specific voltage, and the direct current power after this first DC power supply output loop (102) output is changed certainly.This voltage transitions assembly (31) comprises one first Inductive component (31a), one first diode (31b), one capacitance component (31c) and one second electric switch (31d), and aforementioned this first DC power supply input circuit (101) is an end that is electrically connected this first Inductive component (31a), the other end of this first Inductive component (31a) then is electrically connected the current input terminal of this first diode (31b) and an end of this second electric switch (31d) simultaneously, and the current output terminal of this first diode (31b) is an end and this first DC power supply output loop (102) that is electrically connected this capacitance component (31c) simultaneously, makes this first Inductive component (31a), this first diode (31b), this capacitance component (31c) and this second electric switch (31d) constitute a direct current electric power booster circuit.Moreover, aforesaid control assembly (32) is a control end that is electrically connected this second electric switch (31d), and can select this second electric switch (31d) to be opening or closed condition, and when aforesaid control assembly (32) is selected this second electric switch (31d) for opening or closed condition, direct current power energy storage and release energy machine system can be opened thereupon or close to this voltage transitions assembly (31), thereby reach the voltage transitions that direct current power boosts.Aforesaid this sensing component (36) is that connected in electrical series is in this first DC power supply output loop (102), this sensing component (36) is can be selected from circuit, Hall subassembly and the sensor chip that differential amplifier forms one or several assemblies to constitute, therefore can be according to this first DC power supply output loop (102) institute electric current transmitted value, magnitude of voltage or electrical power value, export the electric signal of a correspondence, this electric signal can provide voltage modulation assembly (35) to carry out logic calculus required in the control program.This sensing component (36) is to be equal to the electric power sensing device of connected in electrical series in this fuel cell power supply circuit (100) in addition, the electricity characteristic that is transmitted in order to this fuel cell power supply circuit (100) of sensing, and output is to electric signal that should electricity characteristic, for instance, this electricity characteristic can be size of current, voltage swing or the watt level of this fuel cell power supply circuit (100) part, loop.In addition, can be according to the circuit characteristic of this fuel cell power supply circuit (100), acquisition is to cell of fuel cell (1) output power characteristic that should fuel cell power supply circuit (100) loop local power characteristic, its corresponding relation can be to utilize modes such as experiment, theoretical calculate or numerical method to obtain, and this electric information is transferred to this control unit (8).
In addition, aforesaid second electric switch (31d) can be metal-oxide-semiconductor's switch module, and the drain electrode end (drain) of this second electric switch (31d) is to be electrically connected this first Inductive component (31a) and this first diode (31b), the gate terminal (gate) of this electric switch (31d) is to be electrically connected this control assembly (32), and the source terminal (Source) of this electric switch (31d) is to be electrically connected a voltage level end (ground), also is ground connection.
The electric end of aforesaid control assembly (32) output control is the control end that is electrically connected this second electric switch (31d) in this voltage transitions assembly (31), make this control assembly (32) can by control this second electric switch (31d) unlatching or close, and then select to open or close the direct current power energy storage and the release energy machine system of this voltage transitions assembly (31), reach the voltage transitions of the direct current power of this voltage transitions assembly (31) thus.
Based on aforesaid embodiment, this voltage modulation assembly (35) is the voltage signal that can preestablish its output, perhaps according to the change of using the demand of going up, by changing the default output voltage signal of this voltage modulation assembly (35), and the DC power supply that makes this voltage transitions assembly (31) that this first DC power supply input circuit (101) is imported is converted to the DC power supply with corresponding voltage, and via the DC power supply after this first DC power supply output loop (102) output conversion.
In addition, aforesaid voltage modulation assembly (35) can comprise a microprocessor (35a), and this microprocessor (35a) is the means with logic calculus and logic control, in order to change the output voltage signal of this voltage modulation assembly (35), and can under the control of this microprocessor (35a), reach the mechanism of dynamic adjustment DC power supply conversion proportion.More particularly, this voltage modulation assembly (35) can further comprise a pulse signal generation device (35b) and a pulse signal signal conversion voltage loop (35c).Wherein this pulse signal generation device (35b) is the electric device of a generation pulse signal, and this pulse signal generation device (35b) is the pulse signal that has particular duty cycle (duty cycle) according to the control signal output that this microprocessor (35a) is provided; And this pulse signal signal conversion voltage loop (35c) is that the pulse signal size that is provided according to this pulse signal generation device (35b) is exported a corresponding voltage signal with the pulse signal work period, and the voltage signal of being exported transferred to the electrical connection terminal of this dividing potential drop assembly (34) and voltage modulation assembly (35).
Aforesaid this pulse signal signal conversion voltage loop (35c) more can be a voltage follower, so as to reducing the influence of output.
Pulse signal generation device (35b) in the aforesaid voltage modulation assembly (35) can pass through the width modulation of the pulse signal of output, and regulates the voltage swing that this dividing potential drop assembly (34) is exported in this pulse signal signal conversion voltage loop (35c).
In addition, aforesaid feedback component (33) can comprise a voltage comparator (33a) and a reference voltages means (33b), this reference voltages means (33b) is in order to the electric signal of a specific voltage value to be provided, this voltage comparator (33a) is a comparator, one input of this voltage comparator (33a) is to be electrically connected this dividing potential drop assembly (34) and another input is to be electrically connected this reference voltages means (33b), in order to dividing potential drop and the defined magnitude of voltage of this reference voltages means (33b) of this dividing potential drop assembly (34) relatively to a end that should feedback component (33), and export comparative result to this control assembly (32), and this control assembly (32) is to export a working period signal according to the comparative result of this feedback component (33), controls this second electric switch (31d) and is conducting state or closed condition.
Aforesaid dividing potential drop assembly (34) is to comprise one first resistor assembly (34a), one second resistor assembly (34b) and one the 3rd resistor assembly (34c), one end of this first resistor assembly (34a), one end of one end of this second resistor assembly (34b) and the 3rd resistor assembly (34c) is to be electrically connected in a feedback voltage link (34d), the other end of this first resistor assembly (34a) is to be electrically connected in this first DC power supply output loop (102), the other end of this second resistor assembly (34b) is the output that is electrically connected in this voltage modulation assembly (35), and the other end of the 3rd resistor assembly (34c) is to be electrically connected a voltage level end.Therefore when this voltage modulation assembly (35) output one voltage signal instantaneous to second resistor assembly (34b) of this dividing potential drop assembly (34), this first resistor assembly (34a) be electrically connected this first DC power supply output loop (102) an end voltage and be electrically connected ground with the 3rd resistor assembly (34c), and form a divider resistance loop, the voltage of this feedback voltage link (34d) can be observed Cauchy lotus husband (Kirchhoff) electric current theorem, and the end and this feedback voltage link (34d) that make this first resistor assembly (34a) be electrically connected this first DC power supply output loop (102) can form interdependent state.Simultaneously, this feedback component (33) the relatively voltage of the feedback voltage link (34d) of this dividing potential drop assembly (34) is also transmitted corresponding electric information to this control assembly (32), this control assembly (32) can be controlled the direct current power energy storage and the release energy machine system of selecting to open or close this voltage transitions assembly (31), make this voltage transitions assembly (31) export corresponding voltage to this first DC power supply output loop (102), and make the feedback voltage link (34d) of this dividing potential drop assembly (34) form corresponding potential state, the voltage that exports this first DC power supply output loop (102) to up to this voltage transitions assembly (31) is predetermined voltage, the voltage of this feedback voltage link (34d) just can tend towards stability state or oscillation on small scale state.
But based on aforementioned modulation stable-pressure device of the present invention, this microprocessor (35a) exportable one controls signal to this pulse signal generation device (35b), make electric signal that the output of this pulse signal generation device (35b) has particular duty cycle to this pulse signal signal conversion voltage loop (35c), and transfer to this dividing potential drop assembly (34); Then, this dividing potential drop assembly (34) is according to Cauchy lotus husband electric current theorem, and determine the magnitude of voltage of this feedback voltage link (34d), and the voltage comparator (33a) of this feedback component (33) can be detected the voltage of this feedback voltage link (34d), and the magnitude of voltage that provided of this reference voltages means (33b) relatively, and the electric signal of comparative result of exporting a correspondence is to this control assembly (32); And, this control assembly (32) can be according to the electric signal of this feedback component (33) institute feedback, select to open or close the direct current power energy storage and the release energy machine system of this voltage transitions assembly (31), so as to the voltage transitions of the direct current power that reaches this voltage transitions assembly (31).Wherein this control assembly (32) is the control that exportable electric signal with particular duty cycle is carried out second electric switch (31d) of this voltage transitions assembly (31), make this second electric switch (31d) to the electric signal that should have particular duty cycle and switch to conducting state or closed condition, and then reach the voltage transitions of the direct current power of this voltage transitions assembly (31).
Aforesaid control assembly (32) can join other controlled condition of collection, controls the unlatching of this second electric switch (31d) or closes and export specific working period signal.For instance, if when the dividing potential drop of the feedback voltage link (34d) of this dividing potential drop assembly (34) did not reach the magnitude of voltage of the reference voltages means of presetting in this feedback component (33) (33b), this control assembly (32) was opening or a closed condition of controlling this second electric switch (31d) according to the controlled condition of its voltage transitions ratio.
In addition, aforesaid sensing component (36) also can be directly to be electrically connected this pulse signal generation device (35b), and selects this pulse signal generation device (35b) for opening or closing.For instance, when the electric characteristic that detects the first DC power supply output loop (102) when this sensing component (36) is lower than default value, this sensing component (36) can output one control signal to this microprocessor (35a), this microprocessor (35a) will send electric signal and cut out this pulse signal generation device (35b), to stop the signal output of this pulse signal generation device (35b).This sensing component (36) is that the electric characteristic of the sensing first DC power supply output loop (102) forms the voltage signal with specific period to regulate this cell of fuel cell (1) through the setting voltage and the difference of this secondary battery cell (6) between the setting voltage of this secondary cell voltage converting unit (7) output voltage of this fuel battery voltage converting unit (3) output voltage, in order to control the power output allocation proportion of this fuel cell power supply circuit and this secondary cell electric power supply circuit.
With reference to shown in Figure 3, it is the component liaison figure of the 3rd specific embodiment of multi-power source hybrid power installation of the present invention.Based on aforesaid second embodiment, this microprocessor (35a) can be to the electric signal that should sensing component (36) be provided, the digital signal that produces a correspondence is given this digital analog converter (35d), be converted to the voltage signal of simulation again by this digital analog converter (35d), and provide a voltage signal to this dividing potential drop assembly (34), control the voltage swing of the feedback voltage link (34d) of this dividing potential drop assembly (34) so as to foundation Cauchy lotus husband electric current theorem.
With reference to shown in Figure 4, it is the component liaison figure of the 4th specific embodiment of multi-power source hybrid power installation of the present invention.Based on aforementioned embodiments of the invention, this voltage modulation assembly (35) can comprise a voltage comparator (35e) and one second reference voltages means (35f), this second reference voltages means (35f) is in order to the electric signal of a specific voltage value to be provided, one input of this voltage comparator (35e) is to be electrically connected this sensing component (36), and another input of this voltage comparator (35e) is to be electrically connected this second reference voltages means (35f), the magnitude of voltage that the voltage signal of being exported in order to this sensing component (36) relatively and this second reference voltages means (35f) are provided, and comparative result is exported to second resistor assembly (34b) of this dividing potential drop assembly (34), and provide a voltage signal, and control the voltage swing of the feedback voltage link (34d) of this dividing potential drop assembly (34) so as to foundation Cauchy lotus husband electric current theorem to this dividing potential drop assembly (34).
Among the aforesaid embodiment, wherein this control assembly (32), this feedback component (33), dividing potential drop assembly (34), voltage modulation assembly (35) and sensing component (36) roped party that can be electrically connected becomes an integrated circuit (IC).
With reference to shown in Figure 5, it is the component liaison figure of the 5th specific embodiment of multi-power source hybrid power installation of the present invention, and present embodiment is the more specifically enforcement aspect of aforementioned this charge circuit of the present invention (400).It comprises an integrated circuit (IC) chip (41), one the 3rd electric switch (42), one second diode (43), one second Inductive component (44), one second DC power supply input circuit (103) and one second DC power supply output loop (104) this charge circuit (400), in order to the direct current power that this second DC power supply input circuit (103) is imported, be converted to the direct current power of a specific voltage, and the direct current power after this second DC power supply output loop (104) output is changed certainly.
Aforementioned this second direct current input circuit (103) is electrically connected to the source terminal of the 3rd electric switch (42), the gate terminal of the 3rd electric switch (42) is electrically connected to this integrated circuit (IC) chip (41), and the output of this second diode (43) and this second Inductive component (44) are electrically connected to the drain electrode end of the 3rd electric switch (42) simultaneously, in addition this second Inductive component (44) is electrically connected to this second DC power supply output loop (104), makes this integrated circuit (IC) chip (41), the 3rd electric switch (42), this second diode (43) and this second Inductive component (44) constitute a direct current electric power reduction voltage circuit.
Moreover, aforesaid this integrated circuit (IC) chip (41) is a gate terminal that is electrically connected the 3rd electric switch (42), and can select the 3rd electric switch (42) to be opening or closed condition, and when aforesaid this integrated circuit (IC) chip (41) is selected the 3rd electric switch (42) for opening or closed condition, by the energy storage and the release energy machine system of this second Inductive component (44), thereby reach the voltage transitions of direct current power step-down.
With reference to shown in Figure 6, it is the signal controlling schematic diagram of multi-power source hybrid power installation of the present invention.In aforementioned mixed electric power device for fuel cell of the present invention, the electric power that this cell of fuel cell (1) is produced is a cell of fuel cell power output (1001), this electric power also carries out power conversions and output power via this fuel battery voltage converting unit (3), and output voltage is a fuel cell power supply circuit output setting voltage (1005), the power that this load (9) running is consumed is load loss power (1002), the power that this charge circuit (400) is accepted this cell of fuel cell (1) supply is a charge circuit electric power (1003), the exportable electric power of electric power that the secondary battery cell (6) of this secondary cell electric power supply circuit (300) produces is a secondary cell electric power supply circuit power output (1004), and output voltage is a secondary cell electric power supply circuit output voltage (1006).
Aforementioned this cell of fuel cell power output (1001) mainly is to output power power that should cell of fuel cell (1), in fact must consider the power consumption in this fuel cell power supply circuit (100), when for example carrying out power conversions via this fuel battery voltage converting unit (3), have the generation of power consumption, be only the electric power of being exported by this fuel cell power supply circuit (100) after making this cell of fuel cell power output (1001) must deduct the power consumption of this fuel battery voltage converting unit (3), but these power consumptions can be estimated, and can compensate the judgment value of this cell of fuel cell power output (1001) by the design of this sensing component (36).
In the aforementioned signal controlling schematic diagram shown in Figure 6, when this cell of fuel cell power output (1001) equals load loss power (1002) is to be defined as the Zhong Zai district, when this cell of fuel cell power output (1001) is to be defined as the low district of carrying during greater than this load loss power (1002), when this cell of fuel cell power output (1001) is to be defined as Gao Zaiqu during less than this load loss power (1002).Wherein when in the situation in Zhong Zai district, this fuel cell power supply circuit output setting voltage (1005) is a little more than this secondary cell electric power supply circuit output voltage (1006), and the charge circuit electric power (1003) that this cell of fuel cell (1) exports this charge circuit (4) to is zero, the secondary cell electric power supply circuit power output (1004) that this secondary cell electric power supply circuit (300) is exported is zero, and this cell of fuel cell power output (1001) just provides the load loss power (1002) of this load (9), this charge circuit (400) does not carry out the charging of this secondary battery cell (6), this secondary battery cell (6) also not output power to this load (9); When carrying in the situation of distinguishing low, this fuel cell power supply circuit output setting voltage (1005) is a little more than this secondary cell electric power supply circuit output voltage (1006), and the secondary cell electric power supply circuit power output (1004) that makes this secondary cell electric power supply circuit (300) be exported is zero, it is non-vanishing that this cell of fuel cell (1) exports the charge circuit electric power (1003) of this charge circuit (400) to, and make this cell of fuel cell (1) keep the same power output in He Zhongzai district, the electric power that this cell of fuel cell (1) is exported is except the load loss power (1002) of supplying with this load (9), this cell of fuel cell (1) also is supplied to other excrescent electric power this charge circuit (400) and carries out the charging of this secondary battery cell (6), and this secondary battery cell (6) can output power yet to this load (9); And when in the situation of Gao Zaiqu, this control unit (8) carries out the voltage transitions of this fuel battery voltage converting unit (3) of regulating and controlling according to the power state of this sensing component (36) this fuel cell power supply circuit (100) of detecting, make this fuel cell power supply circuit output setting voltage (1005) be and this secondary cell electric power supply circuit output voltage (1006) between produce a difference, and make the cell of fuel cell (1) of this fuel cell power supply circuit (100) and the secondary battery cell (6) of this secondary cell electric power supply circuit (300) work in coordination with output power to this load (9), make this cell of fuel cell (1) keep the same power output in He Zhongzai district simultaneously, under the loss of not considering fuel cell power supply circuit (100), the power output summation of this cell of fuel cell power output (1001) and this secondary cell electric power supply circuit power output (1004) equals the load loss power (1002) of this load (9).Therefore, mixed electric power device for fuel cell of the present invention is the output power that can stablize the cell of fuel cell (1) of this fuel cell power supply circuit (100), and can be stable and quantitative output and the electricity needs that can satisfy this load (9) with the electric power of keeping this cell of fuel cell (1) simultaneously by the voltage control of this fuel battery voltage converting unit (3) and the electric power output that cooperates the secondary battery cell (6) of this secondary cell electric power supply circuit (300) simultaneously.
More particularly, in the Gao Zaiqu output allocation proportion under stable state output, be to make when this cell of fuel cell power output (1001) is higher than this secondary cell electric power supply circuit power output (1004), this cell of fuel cell power output (1001) is to adopt one first voltage setting value (1005a) in the Gao Zai district, and this first voltage setting value (1005a) is a little more than this secondary cell electric power supply circuit output setting voltage (1006).In addition, in the Gao Zaiqu output allocation proportion under stable state output, be to make when this cell of fuel cell power output (1001) is lower than this secondary cell electric power supply circuit power output (1004), this cell of fuel cell power output (1001) is to adopt one second voltage setting value (1005b) in the Gao Zai district, and this second voltage setting value (1005b) is a little less than this secondary cell electric power supply circuit output voltage (1006).Aforementioned in the Gao Zai district, first voltage setting value (1005a) of this fuel cell power supply circuit output setting voltage (1005) and the difference of this secondary cell electric power supply circuit output voltage (1006), or the difference of second voltage setting value (1005b) of this fuel cell power supply circuit output setting voltage (1005) and this secondary cell electric power supply circuit output voltage (1006), can determine the ratio of this cell of fuel cell power output (1001) and this secondary cell electric power supply circuit power output (1004).
Aforesaid sensing component (36) is voltage, electric current or the power of the direct current power that can be exported in order to this cell of fuel cell of sensing (1), making can be according to the electric signal of this sensing component (36) feedback, control the direct current power conversion proportion of this fuel battery voltage converting unit (3), and then keep the electric power output of this cell of fuel cell (1).
Cooperation is with reference to figure 6, and in addition again with reference to shown in Figure 7, it is another signal controlling schematic diagram of multi-power source hybrid power installation of the present invention simultaneously.It is in the multi-power source hybrid power installation of the present invention for this schematic diagram, the electric power signal control chart of this electric power input circuit (200) when doing, defining the electric power that this electric power input circuit (200) produced is an electric power input circuit power output (1007), and its output voltage is an electric power input circuit output setting voltage (1008).
In the aforementioned signal controlling schematic diagram shown in Figure 7, when this electric power input circuit power output (1007) equals load loss power (1002) is to be defined as the Zhong Zai district, when this electric power input circuit power output (1007) is defined as the low district of carrying during greater than this load loss power (1002), when this electric power input circuit power output (1007) is defined as Gao Zaiqu during less than this load loss power (1002).Wherein when in the situation in Zhong Zai district, this electric power input circuit output setting voltage (1008) is a little more than this fuel cell power supply circuit output setting voltage (1005) and this this secondary cell electric power supply circuit output voltage (1006), and the charge circuit electric power (1003) that this electric power input circuit exports this charge circuit (400) to is zero, this cell of fuel cell power output (1001) is zero in addition, the secondary cell electric power supply circuit power output (1004) that this secondary cell electric power supply circuit (300) is exported is zero, and this electric power input circuit power output (1007) just provides the load loss power (1002) of this load (9), this charge circuit (400) does not carry out the charging of this secondary battery cell (6), this secondary battery cell (6) also not output power to this load (9); When carrying in the situation of distinguishing low, this electric power input circuit output setting voltage (1008) is a little more than this fuel cell power supply circuit output setting voltage (1005) and this secondary cell electric power supply circuit output voltage (1006), and make that this cell of fuel cell power output (1001) is zero, the secondary cell electric power supply circuit power output (1004) that this secondary cell electric power supply circuit (300) is exported is zero, it is non-vanishing that this electric power input circuit (200) exports the charge circuit electric power (1003) of this charge circuit (400) to, and make electric power input circuit (200) keep the same power output in He Zhongzai district, the electric power that this electric power input circuit (200) is exported is except the load loss power (1002) of supplying with this load (9), this electric power input circuit (200) also is supplied to other excrescent electric power this charge circuit (400) and carries out the charging of this secondary battery cell (6), and this secondary battery cell (6) can output power yet to this load (9); And when in the situation of Gao Zaiqu, this sensing component (36) transfers to this control unit (8) according to the electric power signal of this fuel cell power supply circuit (100), and carry out the voltage transitions of this fuel battery voltage converting unit (3) of regulating and controlling and this secondary cell voltage converting unit (7) by this control unit (8), make this electric power input circuit output setting voltage (1008) be and this fuel cell power supply circuit output setting voltage (1005) and this secondary cell electric power supply circuit output voltage (1006) between generation one difference, and make this electric power input circuit (200), the cell of fuel cell (1) of this fuel cell power supply circuit (100) is worked in coordination with output power to this load (9) with the secondary battery cell (6) of this secondary cell electric power supply circuit (300), makes this electric power input circuit power output (1007), the power output summation of this cell of fuel cell power output (1001) and this secondary cell electric power supply circuit power output (1004) equals the load loss power (1002) of this load (9).
More particularly, in the Gao Zaiqu output allocation proportion under stable state output, be to make when this electric power input circuit power output (1007) is higher than this cell of fuel cell power output (1001) with this secondary cell electric power supply circuit power output (1004), this cell of fuel cell power output (1001) is to adopt one first voltage setting value (1005a) in the Gao Zai district, and this first voltage setting value (1005a) is a little more than this electric power input circuit output setting voltage (1008); This secondary cell electric power supply circuit power output (1004) is to adopt a tertiary voltage set point (1006a) in the Gao Zai district, and this tertiary voltage set point (1006a) is between this first voltage setting value (1005a) and this electric power input circuit output setting voltage (1008).In addition, in the Gao Zaiqu output allocation proportion under stable state output, when must this electric power input circuit power output (1007) being lower than this cell of fuel cell power output (1001) with this secondary cell electric power supply circuit power output (1004), this cell of fuel cell power output (1001) is to adopt one second voltage setting value (1005b) in the Gao Zai district, and this second voltage setting value (1005b) is a little less than this electric power input circuit output setting voltage (1008); This secondary cell electric power supply circuit power output (1004) is to adopt one the 4th voltage setting value (1006b) in the Gao Zai district, and the 4th voltage setting value (1006b) is lower slightly this second voltage setting value (1005b).Aforementioned in the Gao Zai district, this first voltage setting value (1005a) and the difference of this tertiary voltage set point (1006a) and the difference of this electric power input circuit output setting voltage (1008), or this electric power input circuit output setting voltage (1008) and this second voltage setting value (1005b) and the 4th voltage setting value (1006b), can determine the ratio of this cell of fuel cell power output (1001), this secondary cell electric power supply circuit power output (1004) and this electric power input circuit power output (1007).
Though the present invention provides as above with specific embodiment; right its specific embodiment that is provided not is in order to limit the present invention; anyly be familiar with this skill person; in the spirit and scope that do not break away from this creation; when being used for a variety of modifications and variations; its change of doing all belongs to category of the present invention with retouching, and protection scope of the present invention is as the criterion when looking the accompanying Claim book person of defining.
Claims (23)
1. multi-power source hybrid power installation comprises:
One fuel cell power supply circuit, it comprises a cell of fuel cell, an electric switch and a fuel battery voltage converting unit, this cell of fuel cell is a fuel cell force generating apparatus, this fuel battery voltage converting unit is a voltage of power conversion equipment, this cell of fuel cell is electrically connected this electric switch, and this electric switch other end is electrically connected to this fuel battery voltage converting unit;
One secondary cell electric power supply circuit, it comprises a secondary battery cell and a secondary cell voltage converting unit, this secondary battery cell is a chargeable electrical storage device, this secondary cell voltage converting unit is a voltage of power conversion equipment, the power output end of this secondary battery cell is to be electrically connected this secondary cell voltage converting unit, and this secondary cell voltage converting unit is used to regulate the electric power output of this secondary cell electric power supply circuit;
One electric power input circuit, it is a direct current electric power input unit, its output is electrically connected to the output of this fuel cell supply circuit output and this secondary cell electric power supply circuit;
One charge circuit, it is a power conversions and adjusting device, and is used to control the electric power that is supplied to this secondary battery cell to charge; And
One control unit, it has the electric loop and the necessary circuitry thereof of logic determines and control, and be used to control the electric power output of this fuel cell power supply circuit, this electric power input circuit and this secondary cell electric power supply circuit, and select this charge circuit that this secondary battery cell is charged or stop charging;
Wherein this fuel cell power supply circuit, this electric power input circuit and this secondary cell electric power supply circuit are electric being connected in parallel, and output power alone or synergistically; This charge circuit input is to be electrically connected the power output end of this fuel cell power supply circuit and the output of this electric power input circuit; This control unit is regulated the setting voltage value of this fuel cell power supply circuit output and the setting voltage value of this secondary cell electric power supply circuit output according to the transferring electric power of this fuel cell power supply circuit, and have difference between this two setting voltage, and control the charging that this charhing unit carries out this secondary battery cell; And this cell of fuel cell is the fixedly electric power output power to set; This electric power input circuit is if start in addition, this control unit is controlled the setting voltage value of this fuel cell power supply circuit and the setting voltage value of this secondary cell electric power supply circuit output, there is difference in the output power loop of this two magnitude of voltage and this electric power input circuit, integrate this electric power input circuit, this fuel cell power supply circuit and this secondary cell electric power supply circuit according to different electricity needs situations, and form alone or collaborative output power, and make the output of each power supply device to stablize.
2. multi-power source hybrid power installation as claimed in claim 1, wherein load consumption electric power is lower than in the state of the electric power that this cell of fuel cell exports, this control unit will be controlled the setting voltage value that this fuel battery voltage converting unit is regulated the magnitude of voltage of this fuel cell power supply circuit output and adjusted this secondary cell electric power supply circuit output, make this secondary cell electric power supply circuit output stop output power, and control the charging that this charge circuit carries out this secondary battery cell by this control unit, and regulate electric power in the charging process of this charge circuit, make this cell of fuel cell keep fixedly electric power output power to set.
3. multi-power source hybrid power installation as claimed in claim 2, wherein this control unit is that the setting voltage value of this fuel cell power supply circuit output voltage of control is higher than the set point of this secondary cell electric power supply circuit output voltage, to select to stop this secondary cell electric power supply circuit output power.
4. multi-power source hybrid power installation as claimed in claim 2, wherein this control unit is to regulate the fuel battery voltage converting unit output voltage of this fuel cell power supply circuit and the difference between this secondary cell electric power supply circuit output voltage.
5. multi-power source hybrid power installation as claimed in claim 1, wherein this control unit is selected in the state of the independent output power of this electric power input circuit, and this control unit is regulated the output voltage of secondary cell voltage converting unit of the direct voltage converting unit of this fuel cell power supply circuit and this secondary cell electric power supply circuit less than the magnitude of voltage of the output voltage of this electric power input unit; And this control unit is selected in the state of the collaborative output power of this fuel cell power supply circuit, this electric power input circuit and this secondary cell electric power supply circuit, the output voltage values of secondary cell voltage converting unit that this control unit is regulated direct voltage converting unit, this electric power input circuit and this secondary cell electric power supply circuit of this fuel cell power supply circuit forms the cyclical signal of mutual variation, to distribute this fuel cell power supply circuit, this electric power input circuit and this secondary cell electric power supply circuit other power output.
6. multi-power source hybrid power installation as claimed in claim 1, wherein this control unit is selected in the state of the independent output power of this electric power input circuit, and this control unit selects this charge circuit that this secondary battery cell is charged.
7. multi-power source hybrid power installation as claimed in claim 1, wherein this fuel battery voltage converting unit and this secondary cell voltage converting unit are a direct current electric power booster circuit or be a direct current electric power reduction voltage circuit.
8. multi-power source hybrid power installation as claimed in claim 1, wherein this fuel battery voltage converting unit and this secondary voltage converting unit further comprise a voltage transitions assembly, a control assembly, a feedback component, a dividing potential drop assembly, a voltage modulation assembly, a sensing component, and this voltage transitions assembly is the electric loop of a direct current electric power energy storage and release energy machine system; This control assembly is a logical operation, control and selects unlatching or close this voltage transitions assembly the electric loop that is direct current power energy storage and release energy machine system; It is voltage ratio electric loop for this feedback component, and a pair of electric signal that should the voltage comparative result of feedback is to this control assembly; This voltage modulation assembly, it is a voltage signal output device, and output to have specific voltage be electric signal; This sensing component is electrically connected in this fuel cell power supply circuit, and according to electric power that this fuel cell power supply circuit transmitted and the electric signal of exporting a correspondence to control assembly, regulate the voltage difference between this fuel cell power supply circuit output and this secondary cell electric power supply circuit output and control the charging that this charhing unit carries out this secondary battery cell by this control assembly.
9. multi-power source hybrid power installation as claimed in claim 8, wherein the voltage transitions assembly comprises an electric switch; And this control assembly is electrically connected a control end of this electric switch, and to select this electric switch be opening or closed condition, is made as opening or closed condition with the direct current power energy storage and the release energy machine of this voltage transitions assembly of further selection.
10. multi-power source hybrid power installation as claimed in claim 9, wherein this electric switch is metal-oxide-semiconductor's switch module, and this control assembly is electrically connected the gate terminal of this electric switch.
11. multi-power source hybrid power installation as claimed in claim 8, wherein this voltage modulation assembly comprises a microprocessor, and this microprocessor has the means of logic calculus and logic control, to regulate the output voltage signal of this voltage modulation assembly.
12. multi-power source hybrid power installation as claimed in claim 8, wherein this voltage adjusting assembly further comprises a pulse signal generation device and a pulse signal signal conversion voltage loop; This pulse signal generation device is the electric device that a generation has the pulse signal of particular duty cycle; And this pulse signal signal conversion voltage loop is converted to the device of the electric signal of a voltage with pulse signal, and the electric signal of the voltage exported of this pulse signal signal conversion voltage loop is to pulse signal that should the pulse signal generation device.
13. multi-power source hybrid power installation as claimed in claim 12, wherein this pulse signal signal conversion voltage loop comprises a voltage follower.
14. multi-power source hybrid power installation as claimed in claim 8, wherein this voltage modulation assembly further comprises a microprocessor, and this microprocessor has the means of logic calculus and logic control, controls the pulse signal that particular duty cycle was exported and had to this pulse signal with correspondence.
15. multi-power source hybrid power installation as claimed in claim 8, wherein further comprise a sensing component, this sensing component is selected from the assembly in circuit, a Hall subassembly and the sensor chip that a differential amplifier forms, and current value, magnitude of voltage or the electrical power value exported according to this fuel cell power supply circuit, the electric signal of exporting a correspondence is to this control unit.
16. multi-power source hybrid power installation as claimed in claim 15, wherein this sensing component is the electric loop that partial electrical is series at this DC power supply output loop, and detect the magnitude of current of this DC power supply output loop, and the magnitude of current that should the DC power supply output loop is exported an electric signal to this voltage modulation assembly.
17. multi-power source hybrid power installation as claimed in claim 8, wherein this feedback component further comprises a voltage comparator and a reference voltages means, one input of this voltage comparator is electrically connected the feedback voltage link of this dividing potential drop assembly, and another input is electrically connected this reference voltages means, the relatively voltage of this feedback voltage link and the voltage of this reference voltages means, and this comparative result exports this control assembly to.
18. multi-power source hybrid power installation as claimed in claim 17, wherein this control assembly is exported a working period signal according to the comparative result output signal of this feedback component, is conducting state or closed condition to control this electric switch.
19. multi-power source hybrid power installation as claimed in claim 17, wherein this dividing potential drop assembly further comprises one first resistor assembly, one second resistor assembly and one the 3rd resistor assembly, and an end of an end of this first resistor assembly, an end of this second resistor assembly and the 3rd resistor assembly is electrically connected in a feedback voltage link.
20. multi-power source hybrid power installation as claimed in claim 8, wherein this voltage modulation assembly further comprises a microprocessor and a digital analog converter; This microprocessor has the means of output one digital signal to the input of this digital analog converter; And this digital analog converter is that a conversion digital signal is the device of analog signal, and the output of this digital analog converter is electrically connected second resistor assembly of this dividing potential drop assembly.
21. multi-power source hybrid power installation as claimed in claim 20, wherein this microprocessor can be to electric signal that should sensing component provided, control this digital signal generator and produce the digital signal of a correspondence to this digital analog converter, be converted to the voltage signal of simulation again by this digital analog converter, and provide a voltage signal to this dividing potential drop assembly, control the voltage swing of the feedback voltage link of this dividing potential drop assembly thus according to Cauchy lotus husband electric current theorem.
22. multi-power source hybrid power installation as claimed in claim 8, wherein this voltage modulation assembly further comprises a voltage comparator and one second reference voltages means, one input of this voltage comparator is electrically connected this sensing component output, and another input is electrically connected this reference voltages means, the output of this voltage comparator is electrically connected second resistor assembly of this dividing potential drop assembly, this voltage comparator is the voltage of this sensing component output and the voltage of this reference voltages means relatively, and this comparative result exports a voltage signal and gives the dividing potential drop assembly, controls the voltage swing of the feedback voltage link of this dividing potential drop assembly thus according to Cauchy lotus husband electric current theorem.
23. multi-power source hybrid power installation as claimed in claim 1, wherein this charge circuit further comprises an integrated circuit (IC) chip, an electric switch, a diode and an Inductive component, above-mentioned this integrated circuit (IC) chip is electrically connected a control end of this electric switch, and to select this electric switch be opening or closed condition, is made as opening or closed condition with the direct current power energy storage and the release energy machine of this voltage transitions assembly of further selection.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100072165A CN101515723A (en) | 2008-02-19 | 2008-02-19 | Multi-power source hybrid power installation |
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| CNA2008100072165A CN101515723A (en) | 2008-02-19 | 2008-02-19 | Multi-power source hybrid power installation |
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