CN103280884A - Power supply system and method of diesel generator and base station - Google Patents
Power supply system and method of diesel generator and base station Download PDFInfo
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Abstract
The invention provides a power supply system and a method of a diesel generator and a base station. The system comprises a diesel generator, an alternating current/ direct current (AC/DC) module and a power source management module, wherein the diesel generator is used for outputting alternating current to the AC/DC module under the control of the power source management module, and can be closed under the control of the power source management module; the AC/DC module is used for converting the alternating current input by the diesel generator into direct current and outputting the direct current to a load under the control of the power source management module, and can stop outputting the direct current to the load under the control of the power source management module; and the power source management module is used for controlling the diesel generator to be closed after controlling the AC/DC module to stop outputting the direct current to the load. The power supply system of the diesel generator realizes the no-load halt of the diesel generator, the diesel generator is prevented from being damaged, the power supply to the load can be stopped without using an ATS (Auto Transfer Switch), and the power supply reliability can be improved.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of diesel engine generator electric power system, method and base station.
Background technology
Communication base station distributes and relatively to disperse, and in the rural area, some electricity networks such as mountain area, remote districts unlapped place still, generally adopting diesel engine generator is power devices in the communication base station.
Fig. 1 is the part-structure schematic diagram of diesel engine generator electric power system of the prior art; As shown in Figure 1, in the diesel engine generator electric power system of prior art, the electric energy of diesel engine generator output is through ac/dc conversion (Alternating Current/Direct Current, AC/DC) flow to DC load and storage battery after the module 12, think that load and storage battery provide galvanic current to press; And (Auto Transfer Switch ATS) 13 is electrically connected by automatic selector switch between diesel engine generator 11 and AC/DC module 12; After diesel engine generator is opened, this ATS13 just can detect diesel engine generator alternating current output, and mechanical switch placed first contact 101 that is connected with the diesel engine generator output and between second contact 102 that is connected with AC/DC module 12, so that the alternating current of diesel engine generator output is converted to the direct current supply load through AC/DC module 12; After closing diesel engine generator, this ATS can detect diesel engine generator and no longer include alternating current output, and with mechanical switch place second contact 102 and and the 3rd contact 103 that disconnects of diesel engine generator 11 outputs between, to disconnect being electrically connected between diesel engine generator 11 and the AC/DC module 12, follow-up, AC/DC module 12 is just supplied with because of no electric energy and is quit work.
In the diesel engine generator electric power system of this employing ATS of the prior art, stopping process is that diesel engine generator cuts out earlier, back AC/DC module quits work, and therefore, it is to be with to carry to close that diesel engine generator closes closed procedure, causes diesel engine generator to damage probably; And use mechanical switch among the ATS, easily break down in the use, reduced power supply reliability, and increased maintenance cost.
Summary of the invention
At above-mentioned defective of the prior art, the invention provides a kind of diesel engine generator electric power system, method and base station, realize that the zero load of diesel engine generator is closed, avoid diesel engine generator to damage, increase the service life, reduce maintenance cost.
The embodiment of the invention provides a kind of diesel engine generator electric power system, comprising: diesel engine generator, ac/dc conversion AC/DC module and power management module;
Described diesel engine generator is used for to described AC/DC module output AC;
Described AC/DC module is used for converting the alternating current that described diesel engine generator is imported to direct current and exports to load;
Described power management module is connected respectively with described diesel engine generator and described AC/DC module, is used for stopping output DC to after the described load in the described AC/DC module of control, controls described diesel engine generator and closes.
Another embodiment of the present invention provides a kind of base station, comprises aforesaid diesel engine generator electric power system.
Further embodiment of this invention provides a kind of diesel engine generator method of supplying power to, comprising:
After power management module control AC/DC module stopped direct current that the alternating current with diesel engine generator output converts to and exports to load, described power management module was controlled described diesel engine generator and is closed.
Diesel engine generator electric power system provided by the invention, stop to close generator again after the output by power management module control AC/DC module, realized the zero load shutdown of diesel engine generator, it is fully cooled off in no-load running, avoid the diesel engine generator damage, prolonged the useful life of diesel engine generator; In addition, need not to utilize ATS to realize stopping to have improved power supply reliability for the load power supply, also reduced maintenance cost.
Description of drawings
Fig. 1 is the part-structure schematic diagram of diesel engine generator electric power system of the prior art;
The structural representation of the diesel engine generator electric power system that Fig. 2 provides for one embodiment of the invention;
The structural representation of the diesel engine generator electric power system that Fig. 3 provides for another embodiment of the present invention;
The flow chart of the diesel engine generator method of supplying power to that Fig. 4 provides for the embodiment of the invention.
Embodiment
Diesel engine generator electric power system in the various embodiments of the present invention can provide electric energy for the DC load in the base station and storage battery; And, this diesel engine generator electric power system also can be formed a continued power system jointly with mains-supplied system and/or solar electric power supply system, realization is load and storage battery power supply according to one in the different power supply of scene dynamics control diesel engine generator subsystem, mains-supplied subsystem and the solar powered subsystems, with effective utilization and energy savings.
The structural representation of the diesel engine generator electric power system that Fig. 2 provides for one embodiment of the invention; As shown in Figure 2, present embodiment provides a kind of diesel engine generator electric power system, comprising: diesel engine generator 2, ac/dc conversion AC/DC module 4 and power management module 3;
Particularly, diesel engine generator 2 can be generating equipment commonly used in this area, can the output AC electricity, and can close under the control of other control appliance and start.Wherein, close the power supply that diesel engine generator 2 can refer to cut off diesel engine generator 2, start diesel engine generator 2 can the finger energize so that diesel engine generator 2 power on.
AC/DC module 4 is used for converting the alternating current that diesel engine generator 2 is imported to direct current and exports to load.That is, the major function of AC/DC module 4 is to export with the AC rectification of input and with the direct current of fixed voltage.Wherein, the ac input end of AC/DC module 4 can be connected with the output of diesel engine generator 2, the dc output end of AC/DC module 4 can be connected to the two ends of DC load, is converted to direct current with the alternating current of diesel engine generator 2 being exported by the translation function of AC/DC module 4 and offers load.Alternatively, when being provided with storage battery in the base station, the DC load two ends generally also are parallel with storage battery, and the dc output end of AC/DC module 4 also is connected with the two ends of storage battery respectively at this moment.
Power management module 3 is connected respectively with AC/DC module 4 with diesel engine generator 2, is used for stopping output DC to after the load in control AC/DC module 4, and control diesel engine generator 2 cuts out.
In the present embodiment, power management module 3 can be a controller, and can be connected with diesel engine generator 2, starts and closes with the control diesel engine generator that transmits control signal; Simultaneously, power management module 3 can also be connected with AC/DC module 4, with the operating state of the control AC/DC module 4 that transmits control signal.
Alternatively, can recently control the operating state of AC/DC module 4 by the duty of adjusting AC/DC module 4; Particularly, when AC/DC module 4 defeated go out duty ratio and be 0 the time, AC/DC module 4 stops output DC and gives described load, namely stops the state of exporting; When the duty ratio of AC/DC module 4 output greater than 0 the time, AC/DC module 4 converts the alternating current of diesel engine generator 2 inputs to direct current and exports to load, i.e. output state, and, when being in output state, duty ratio is more big, and the power of AC/DC module 4 outputs is more big.
During this diesel engine generator electric power system normal power supply, diesel engine generator 2 is in power-up state, and AC/DC module 4 also is in output state, and the alternating current of diesel engine generator 2 outputs is converted to direct current and exports to load by AC/DC module 4 after AC/DC module 4; When needs stop to power for load, power management module 3 sends control signal to AC/DC module 4 earlier, stop output DC with control AC/DC module 4 and give load (namely switched to by output state and stop output state), afterwards, control diesel engine generator 2 again and close.
Preferably, power management module 2 can stop to pick up counting when output DC is given load in control AC/DC module 4, if (for example: 60s), then control diesel engine generator 2 and close reach first delay time; This first delay time specifically can be determined according to different diesel engine generators, to guarantee that in first delay time diesel engine generator 2 can be realized fully cooling by no-load running.
The diesel engine generator electric power system that present embodiment provides, stop to close generator again after the output by power management module control AC/DC module, realized the zero load shutdown of diesel engine generator, it is fully cooled off in no-load running, avoid the diesel engine generator damage, prolonged the useful life of diesel engine generator; In addition, need not to utilize ATS to realize stopping to have improved power supply reliability for the load power supply, also reduced maintenance cost.
Further, power management module 3 also is used for after 2 startups of control diesel engine generator, and the alternating current that control AC/DC module 4 is imported diesel engine generator 2 converts direct current to and exports to load.
Can control the start-up course of this diesel engine generator electric power system by power management module, detailed process can for, power management module 3 sends control signal to diesel engine generator 2 earlier, control diesel engine generator 2 starts, and can be when sending the control signal of control diesel engine generator 2 startups, pick up counting, after timing reaches default start delay time, send control signal to AC/DC module 4 again, when AC/DC module 4 receives this control signal, just enter output state at once, afterwards, the alternating current that AC/DC module 4 is just imported alternating current generator 2 converts direct current to and exports to load, and the power output of AC/DC module 4 can be the initial power output less than peak power output at this moment.The diesel engine generator electric power system of present embodiment can realize the No Load Start of diesel engine generator.
Further, power management module 3 can also be used for to the order of AC/DC module 4 transmitted powers coupling; Accordingly, AC/DC module 4 can also be used for receiving this power match order, and export corresponding power according to this power match order to load.
Particularly, after this diesel engine generator electric power system starts, the AC/DC module power output that power management module 3 also can obtain matching according to the calculation of capacity of diesel engine generator 2, and by the power match order this power output is sent to AC/DC module 4, after AC/DC module 4 receives this power match order, just give load according to the power output output DC of this power match order indication.Cause the shutdown of diesel engine generator to avoid power output to surpass the capacity of diesel engine generator 2.
Alternatively, AC/DC module 4, can also be used under the control of power management module 3 alternating current with diesel engine generator 2 inputs converts direct current to and exports to the load time-out and rise and pick up counting, when (for example reaching second delay time, 60s) and when not receiving the power match order that power management module 3 sends, then to the default power of load output.
Wherein, this default power can be the maximum power of AC/DC module 4, the initial power output in the time of perhaps also can starting working for aforementioned AC/DC module 4.
Wherein, AC/DC module 4 can possess clocking capability, with when not receiving the power match order of power management module 3 transmissions, and can be according to default power output.
The structural representation of the diesel engine generator electric power system that Fig. 3 provides for another embodiment of the present invention; Be with embodiment one difference, the AC/DC module specifically is divided into different functional units in the present embodiment, as shown in Figure 3, with embodiment one similarly, the diesel engine generator electric power system that present embodiment provides comprises diesel engine generator 2, AC/DC module 4 and power management module 3, wherein, AC/DC module 4 can comprise: control unit 41 and power conversion unit 42;
Control unit 41, be used under the control of power management module 3 control power conversion unit 42 and convert the alternating current of diesel engine generator 2 outputs to direct current and export to load, and control power conversion unit 42 stops output DC and gives load under the control of power management module 3;
Power conversion unit 42, the alternating current that is used under the control of control unit 41 diesel engine generator 2 being exported converts direct current to and exports to load, and is used for stopping output DC to load under control unit 41 controls.
In addition, accessory power supply unit 43 be can also comprise, control unit 41 and power conversion unit 42 power supplies are used to.
Be load when power supply when needs start this diesel engine electric power system, power management module 3 control diesel engine generator 2 earlier starts, and can pick up counting when sending the control signal that control diesel engine generator 2 starts; After diesel engine generator 2 starts just to AC/DC module 4 output ACs, the accessory power supply unit 43 of AC/DC module 4 receive just begin behind the alternating current for control unit 41 and power conversion unit 42 power supplies (perhaps, accessory power supply unit 43 also can be from the storage battery power taking), control unit 41 picks up counting when powering on, when timing reaches default start delay time, control power conversion module 42 again and convert the alternating current of alternating current generator 2 input to direct current and export to load (this moment, AC/DC module 4 power output was initial power output P1), and pick up counting again; Realized the unloaded start of diesel engine generator.
Subsequently, AC/DC module 4 just continues to give load according to above-mentioned initial power output output DC, if control unit 41 is received the power match order that power management module 3 sends, then control power conversion module 42 and export corresponding power P 2 according to this power match order, wherein P2 is greater than P1;
If the timing when from control power conversion module 42 alternating current of alternating current generator 2 input being converted to direct current and exports to load reaches second Preset Time and does not receive above-mentioned power match order, then control unit 41 control power conversion modules 42 are according to 3 outputs of default power P, and the value of P3 can be the peak power output of this AC/DC module 4.
When this diesel engine generator of needs electric power system stopped to power for load, power management module 3 can send to the control unit 41 of AC/DC module 4 and be used for the control signal that notice AC/DC module 4 stop to export, and picks up counting when sending this control signal; Control unit 41 receives this control signal and controls power conversion unit 42 and stops output DC to load (namely no longer being the load power supply); If the power management module timing reaches first delay time, then control diesel engine generator 2 and close.Realized the zero load shutdown of diesel engine generator.
The diesel engine generator electric power system that present embodiment provides, No Load Start and unloaded shutdown of having realized diesel engine generator have been avoided the diesel engine generator damage, have prolonged the useful life of diesel engine generator; And, in the normal power supply process, can also adjust the power output of AC/DC module according to the capacity of diesel engine generator, avoided overload to cause diesel engine generator to be shut down; In addition, need not to utilize ATS to realize stopping to have improved power supply reliability for the load power supply, also reduced maintenance cost.
Further embodiment of this invention provides a kind of base station, comprise the as above described diesel engine generator electric power system of arbitrary embodiment, load (for example communication equipment), and storage battery, described diesel engine generator electric power system provides direct current for load, so that the load operate as normal, and then realize the communication function of base station.Wherein, the concrete function of diesel engine generator electric power system and technique effect and previous embodiment are similar, repeat no more herein.
The flow chart of the diesel engine generator method of supplying power to that Fig. 4 provides for the embodiment of the invention; As shown in Figure 4, present embodiment provides a kind of diesel engine generator method of supplying power to, comprising:
S51, after power management module control AC/DC module stops direct current that the alternating current with diesel engine generator output converts to and exports to load, this power management module control diesel engine generator cuts out.
The diesel engine generator method of supplying power to that present embodiment provides can be realized based on the diesel engine generator electric power system that previous embodiment provides.In the normal operating conditions of diesel engine generator electric power system, the alternating current of diesel engine generator output is exported to load after the AC/DC module converts becomes direct current, and, power management module can be controlled the keying of diesel engine generator and the operating state of AC/DC module, for example, export to parameters such as the power of load and/or voltage, can manage and control whole system by power management module.
When needs diesel engine generator electric power system was stopped power supply, power management module sent control signal control AC/DC module earlier and stops output DC to load (for example the duty ratio of AC/DC module can be adjusted into 0); Afterwards, sending the signal controlling diesel engine generator again cuts off the electricity supply.
Alternatively, power management module also can pick up counting when control AC/DC module stops direct current that the alternating current with diesel engine generator converts to and exports to load; If reach first delay time, then control diesel engine generator and close.Wherein, power management module can be controller, or other has the chip of control processing capacity etc.
Alternatively, before S51, can also comprise:
S50, power management module control diesel engine generator start, controlling the AC/DC module afterwards converts the alternating current of diesel engine generator input to direct current and exports to load, be in the diesel engine generator electric power system process that begins to power, start diesel engine generator earlier, control the AC/DC module afterwards again and enter operating state, to realize No Load Start.
After S50 and before S51, can also comprise:
S501, power management module are to the order of AC/DC module transmitted power coupling, so that the AC/DC module is exported corresponding power according to the power match order to load.
The diesel engine generator method of supplying power to that present embodiment provides can be realized based on the diesel engine generator electric power system of Fig. 2 or Fig. 3, interaction flow and previous embodiment in this diesel engine generator electric power system between the function of other element and power management module and other element are similar, repeat no more herein.
The diesel engine generator electric power system that present embodiment provides, stop to close generator again after the output by power management module control AC/DC module, realized the zero load shutdown of diesel engine generator, it is fully cooled off in no-load running, avoid the diesel engine generator damage, prolonged the useful life of diesel engine generator; In addition, need not to utilize ATS to realize stopping to have improved power supply reliability for the load power supply, also reduced maintenance cost.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each method embodiment can be finished by the relevant hardware of program command.Aforesaid program can be stored in the computer read/write memory medium.This program is carried out the step that comprises above-mentioned each method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although the present invention has been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a diesel engine generator electric power system is characterized in that, comprising: diesel engine generator, ac/dc conversion AC/DC module and power management module, wherein:
Described diesel engine generator is used for to described AC/DC module output AC;
Described AC/DC module is used for converting the alternating current that described diesel engine generator is imported to direct current and exports to load;
Described power management module is connected respectively with described diesel engine generator and described AC/DC module, is used for stopping output DC to after the described load in the described AC/DC module of control, controls described diesel engine generator and closes.
2. diesel engine generator electric power system according to claim 1, it is characterized in that, described power management module specifically is used for: control described AC/DC module and stop to pick up counting when output DC is given described load, if reach first delay time, then control described diesel engine generator and close.
3. diesel engine generator electric power system according to claim 1 and 2 is characterized in that,
Described power management module also is used for after the described diesel engine generator of control starts, and controls described AC/DC module and converts the alternating current of described diesel engine generator input to direct current and export to described load.
4. diesel engine generator electric power system according to claim 3 is characterized in that,
Described power management module also is used for to the order of described AC/DC module transmitted power coupling;
Described AC/DC module also is used for receiving described power match order, and exports corresponding power according to described power match order to described load.
5. according to each described diesel engine generator electric power system of claim 1-4, it is characterized in that,
Described AC/DC module, also being used under the control of described power management module alternating current with described diesel engine generator input converts direct current to and exports to described load time-out and rise and pick up counting, when reaching second delay time and do not receive the power match order of described power management module transmission, then to the default power of described load output.
6. according to each described diesel engine generator electric power system of claim 3-5, it is characterized in that described AC/DC module comprises: control unit and power conversion unit;
Described control unit, be used under the control of the described power management module described power conversion unit of control and convert the alternating current of described diesel engine generator output to direct current and export to described load, and the described power conversion unit of control stops output DC and gives described load under the control of described power management module;
Described power conversion unit, the alternating current that is used under the control of described control unit described diesel engine generator being exported converts direct current to and exports to described load, and is used for stopping output DC to described load under described control unit control.
7. diesel engine generator electric power system according to claim 6 is characterized in that, described rectifier also comprises:
The accessory power supply unit is used to the power supply of described control unit and power conversion unit.
8. a base station is characterized in that, comprises each described diesel engine generator electric power system as claim 1-7.
9. a diesel engine generator method of supplying power to is characterized in that, comprising:
After power management module control AC/DC module stopped direct current that the alternating current with diesel engine generator output converts to and exports to load, described power management module was controlled described diesel engine generator and is closed.
10. diesel engine generator method of supplying power to according to claim 9, it is characterized in that, after power management module control AC/DC module stops direct current that the alternating current with diesel engine generator output converts to and exports to load, described power management module is controlled described diesel engine generator and is closed, and is specially:
When described power management module control AC/DC module stops direct current that the alternating current with described diesel engine output converts to and exports to described load, pick up counting;
If reach first delay time, then control described diesel engine generator and close.
11. according to claim 9 or 10 described diesel engine generator method of supplying power to, it is characterized in that, stop alternating current with described diesel engine output in described power management module control AC/DC module and convert to before direct current exports to described load, also comprise:
Described power management module is controlled described diesel engine generator and is started, and controls described AC/DC module afterwards and converts the alternating current of described diesel engine generator input to direct current and export to described load.
12. according to claim 10 or 11 described diesel engine generator method of supplying power to, it is characterized in that, described power management module control described AC/DC module the alternating current of described diesel engine generator input is converted to direct current export to described load after and stop also to comprise before output DC gives described load in described power management module control AC/DC module:
Described power management module is to the order of described AC/DC module transmitted power coupling, so that described AC/DC module is exported corresponding power according to described power match order to described load.
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| CN2013101942602A CN103280884A (en) | 2013-05-22 | 2013-05-22 | Power supply system and method of diesel generator and base station |
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| CN103580280A (en) * | 2013-11-20 | 2014-02-12 | 上海交通大学 | Quad-rotor small-sized helicopter hybrid energy supply system |
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| CN104597889A (en) * | 2015-02-03 | 2015-05-06 | 铁岭亿峰新能源科技有限公司 | Unattended communication base station diesel oil power generation low-oil monitoring system |
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| CN102780258A (en) * | 2012-08-20 | 2012-11-14 | 盐城市宏盛新能源科技有限公司 | Smart charge control system of vehicle-mounted permanent magnet generator of electric automobile |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103580280A (en) * | 2013-11-20 | 2014-02-12 | 上海交通大学 | Quad-rotor small-sized helicopter hybrid energy supply system |
| CN103580280B (en) * | 2013-11-20 | 2015-09-09 | 上海交通大学 | A kind of four rotor Mini Tele-Copter energy mix feed systems |
| CN104753162A (en) * | 2013-12-30 | 2015-07-01 | 华为技术有限公司 | Base station power supply system and multipath alternating current power supply switching method thereof |
| CN104578370A (en) * | 2015-02-03 | 2015-04-29 | 铁岭亿峰新能源科技有限公司 | Solar-diesel storage wireless intelligent communication base station power supply control system |
| CN104597889A (en) * | 2015-02-03 | 2015-05-06 | 铁岭亿峰新能源科技有限公司 | Unattended communication base station diesel oil power generation low-oil monitoring system |
| CN104597889B (en) * | 2015-02-03 | 2017-05-31 | 辽宁普天能源发电集团亿峰新能源科技有限公司 | A kind of unattended low oil-mass monitoring system of communication base station diesel generation |
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