CN201563071U - Uranium exploration intelligent power supply control device - Google Patents
Uranium exploration intelligent power supply control device Download PDFInfo
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- CN201563071U CN201563071U CN2009201894773U CN200920189477U CN201563071U CN 201563071 U CN201563071 U CN 201563071U CN 2009201894773 U CN2009201894773 U CN 2009201894773U CN 200920189477 U CN200920189477 U CN 200920189477U CN 201563071 U CN201563071 U CN 201563071U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model belongs to the technical field of electric power and electronic control, in particular to a power supply device in a DC electric prospecting technology in the uranium resource and environment exploration field, which comprises a storage battery, a solar module, an inverter controller and the like; the inverter controller adopts an STC single-chip microcomputer as the core, converts the electric power of the storage battery into AC step wave voltage to be output and supplied to a mine as high-voltage electrode power; the output voltage power can be switched and changed in five shifts, and the unilateral value of the output voltage can be switched and regulated in ten shifts; the utility model uses a solar photovoltaic technology to supply power, adopts the single-chip microcomputer and a CAN communication module, and realizes the intelligent and network power supply control device; and the device adopts an inverter technology and PID algorithm, remotely switches through an upper computer and a CAN bus network, has the advantages of multi-frequency and multi-voltage selective output, and safety, quick, high-efficiency, stable and reliable use, and brings a lot of convenience for exploration workers of outdoor uranium resources and other mineral resource electrical methods.
Description
Technical field
The utility model belongs to power electronics control technology field, is the electric supply installation in the D.C. method technology that is applied in uranium ore resource and the environment Exploration Domain.
Background technology
The D.C. method technology is mainly based on the high-density electric measurement data acquisition.Yet over nearly 10 years, along with the develop rapidly of computer technology, network technology, electronic device, electrical method is looked for the ore deposit to look for the ore deposit progressively to develop into 3 D resistivity data acquisition imaging by high-density electric and is looked for the ore deposit.This regional mining site electrode power supply device reliable and stable, that the Ultra-low Frenquency Voltage segmentation is adjustable of ore deposit Technology Need of looking for; Need that designed reliability is good, anti-noise ability is strong, have the front end data intelligent acquisition treatment system that integrates data acquisition, storage, transmission and preliminary treatment ability; The background computer image processing and the imaging technique that need Mathematical Modeling, data acquisition and processing method, data analysis and the imaging algorithm of research mining site distributed architecture.Therefore, regional mining site electrode power supply device also is the important component part of system.Present regional mining site electrode power supply adopts tens joint dry cell power supplies mostly, frequency and voltage can't be regulated, data effectively omnibearing stereo formula are gathered, give some inaccuracies that cause of subsequent analysis uranium ore mining site resource, and the dry battery power power-on time is short, brings a lot of inconvenience to field work.Based on above factor, we have proposed to adopt solar energy power generating and the design of frequency conversion inversion transformation technique to be suitable for the regional mining site electrode power supply device of open-air uranium ore resource electrical prospecting.
Summary of the invention
The purpose of this utility model is to utilize solar energy power generating to ensure the charging of storage battery, utilize single-chip microcomputer and CAN communication module, realize intellectuality, the networking of power supply control apparatus, realize a kind of intelligent power supply control device for uranium ore resource exploration of the interchange output of 5 gear frequencies, 9 gear voltage selections by technology such as inversion transformation technique, converter techniques.
The utility model is based on the intellectuality of developing under the CAN bus communication pattern, the intelligent power supply control device of network type, it is achieved in that and comprises storage battery, solar module, inverter controller, charging-discharging controller, the mining site high-field electrode, total line traffic control of CAN and data presentation device, wherein storage battery provides direct current energy, inverter controller is responsible for that the electric energy of batteries is converted to high voltage output and is supplied with the electricity consumption of mining site high-field electrode, solar module charges to storage battery, charging-discharging controller carries out management of charging and discharging to storage battery, the CAN bus realizes electric supply installation and host computer data communication bus, data show 58 sections charactrons of employing, show the alternating voltage and the frequency of power supply control apparatus output.
It is core that described inverter controller adopts the STC single-chip microcomputer, it is the inverter controller of an output staircase waveform, it is converted to the electricity consumption of interchange staircase voltage output supply mining site high-field electrode with the electric energy of storage battery, output voltage and frequency values are assigned by the CAN bus by host computer and are instructed single-chip microcomputer, control signal is exported in the instruction that single-chip microcomputer is assigned according to host computer, make the alternating voltage of inverter controller by the staircase waveform of predetermined value output, output voltage frequency can be at 0.125Hz, 0.25Hz, 0.5Hz, 1Hz, switch variation between five shelves of 2Hz, the monolateral value of output voltage can be at 20V, 45V, 90V, 135V, 180V, 225V, 270V, 315V, 360V, switch between ten shelves of 400V and regulate; When after the battery discharging during power shortage, single-chip microcomputer will cut out the inverter controller output AC voltage automatically, and solar battery group charges a battery by charging-discharging controller simultaneously.
Inverter controller has overcurrent, overvoltage detects protection and sound and light of alarm; inverter controller detects protection and sound light alarming circuit by overcurrent, overvoltage; electric weight to storage battery detects control; and receive the order and the data of host computer by the CAN bus; these data are carried out PWM modulation and pid algorithm control; change output voltage amplitude and frequency, export reliable and stable voltage.
Charging-discharging controller is by controlling and limit the overcharging of storage battery, overdischarge, deep charge, load overcurrent and reverse charge, controls the output to electrode load of solar cell and storage battery according to regional mining site power demands simultaneously.
The utility model has utilized solar photovoltaic technology that power supply is provided, and utilizes single-chip microcomputer and CAN communication module, realizes intellectuality, the networking of power supply control apparatus; Inversion transformation technique, converter technique on circuit design, have been adopted, on algorithm thinking and programming technique, adopted pid algorithm, carry out long-range switching by host computer and CAN bus network on the form of expression, has multi-frequency, multivoltage selection output, possess that efficient stable is reliable safely and fast, make this product can in electrical method is reconnoitred, bring into play important effect, bring a lot of convenience for open-air uranium ore resource and other mineral resources electrical method preliminry basic research person.
Description of drawings
Fig. 1, the utility model embodiment 1 intelligent power supply control device for uranium ore resource exploration structured flowchart.
Fig. 2, the utility model embodiment 1 inverter controller circuit structure block diagram.
Fig. 3, the utility model embodiment 1 inverter controller control model figure.
Fig. 4, the utility model embodiment 1 Voltage Source PWM Inverter controlling models.
The Voltage Source PWM Inverter controlling models that Fig. 5, the utility model embodiment 1 usefulness transfer function are represented.
Fig. 6, the utility model embodiment 1 charging-discharging controller schematic block circuit diagram.
Fig. 7, the utility model embodiment 1 inverter controller circuit connection diagram
Among the figure: solar module 1, charging-discharging controller 2, batteries 3; inverter controller 4, CAN bus cable 5, general inverter 6; host computer 7, mining site measurement electrode 8, power supply accessory power outlet plate 9; cable 10, time scale control and pulse shaping circuit 11, inverter main circuit 12; output feedback and protective circuit 13, adjuster 14, DC voltage booster circuit 15; current rectifying and wave filtering circuit 16, inversion control and push-pull output circuit 17, output filter circuit 18; PWM control circuit for pulse-width modulation 19, feedback circuit 20, overcurrent-overvoltage control circuit 21; Drive and Control Circuit 22, overcurrent-overvoltage testing circuit 23, electric current and voltage Acquisition Circuit 24; electronic switch 25; single-chip microcomputer 26, digital display circuit 27, CAN telecommunication circuit 28; temperature sensing circuit 29; voltage sampling circuit 30 detects control circuit 31, load 32.
Embodiment
Embodiment 1:
As shown in Figure 1, the both positive and negative polarity of solar module 1 is connected to the 1-2 end of charging-discharging controller 2, the both positive and negative polarity of lead-acid batteries 3 is connected to the 3-4 end of charging-discharging controller 2, the input of inverter controller 4 is connected respectively to the 5-6 end of charging-discharging controller 2, and the positive and negative electrode output of inverter controller 4 is connected with positive pole, the negative pole of regional mining site measurement electrode 8 by cable 10; CAN communication module in the inverter controller is core with SJA1000, adopts CAN bus cable 5 and host computer 7 servers to transmit data.
The 5-6 end of charging-discharging controller 2 can also be connected respectively with the input of general inverter 6, and the output of the alternating current 220V of general inverter 6 is connected with power supply accessory power outlet plate 9.Need the electric equipment (as laptop computer, electric light etc.) of electricity consumption attaching plug can be inserted power taking.
In the present embodiment: solar module 1 is selected the APM36P110W147x68 model for use, and performance parameter is 110W/17.5V/6.3A, can use 2 or the use in parallel of multiple signle crystasl silion cell plate, to increase output power; Charge controller 2 is responsible for high efficiency solar recharging, guarantees the efficient of photovoltaic generation and storage battery; Batteries 3 comprises the storage battery of 1 12V/60AH, is used to preserve the electric weight that solar energy produces; General inverter 6 can be selected for use about 200W, illumination and notebook computer, the mobile phone usefulness of temporarily charging so that field work to be provided, and 10 watts of electricity-saving lamps are selected in illumination for use; Inverter controller 4 has the CAN interface, can couple together with host computer 7 by the CAN bus cable 5 of 2 cores to carry out remote data communication; Inverter controller 4 is accepted the Long-distance Control of host computer, host computer can be assigned instruction, 4 shutdown of indication inverter controller, start power supply, the height of output voltage, the speed of output frequency, to the status data of host computer transmission inverter controller 4 current real works, comprise magnitude of voltage, frequency values, current value simultaneously.
CAN bus cable 5 are inverter controllers with host computer between the 2 core pair cable lines that are connected, be to communicate to connect route; CAN telecommunication circuit 28 is to be the communication data transmission circuit of core with SJA1000, has the data communication controlled function.
After connecting according to above method, connect charging-discharging controller 2, solar module 1 carries out photovoltaic generation, and the electric energy that solar energy is produced is saved in the batteries 3, and batteries 3 is carried out control and management by charging-discharging controller 2.
Shown in accompanying drawing 2 and accompanying drawing 7, inverter controller 4 is a kind of direct current transformers to interchange (DC to AC), is a kind of process of voltage inversion, and the 12V direct voltage that batteries 3 is exported changes alternating current voltage output into.Adopt PWM (Pulse Width Modulation) pulse width modulating technology and the CAN communication technology, shown in accompanying drawing 2 and accompanying drawing 7, inverter controller 4 is a core with STC12C5A08AD single-chip microcomputer (U3), its inside contains the Flash program storage of 8KB, the SRAM memory of 1280B, 2 16 bit timing devices, 2 tunnel 8 PWM, 8 tunnel 10 A/D converters and perfect interrupt system, adopt the PDIP40 encapsulation, operating voltage 3.3～5.5V;
The inverter controller circuit is a core with STC12C5A08AD single-chip microcomputer (U3), and this single-chip microcomputer one has 4 I/O port P0, P1, P2 and P3, and each port accounts for 8 pin positions; The static serial that its UART serial ports is used for 5 figure places shows;
The P0 port of single-chip microcomputer is connected with the acp chip SJA1000 (U4) of CAN telecommunication circuit 28 by data/address bus, acp chip SJA1000 (U4) is connected with the CAN interface of host computer 7 by the CAN communication bus interface, receives order and the data that host computer 7 issues by interrupt mode; Or at the two ends of CAN communication bus one 120 ohm in parallel resistance.
The P1.0 of single-chip microcomputer is connected by the divider resistance of electric current and voltage Acquisition Circuit 24 with output filter circuit 18 with the P1.1 port;
The P1.5 of single-chip microcomputer is connected by the metal-oxide-semiconductor of Drive and Control Circuit 22 with inversion control push-pull output circuit 17 with the P1.6 port, the output of inversion control push-pull output circuit 17 constitutes overcurrent-overvoltage testing circuit 23 by series and parallel power resistor and HA17393 comparator, and overcurrent-overvoltage testing circuit 23 is connected with the P3.4 port with the P3.3 of single-chip microcomputer;
The P1.4 port of single-chip microcomputer is connected with 4 pin of PWM control circuit for pulse-width modulation 19 by overcurrent-overvoltage control circuit 21, totally 8 ports of the P2.0～P2.7 of single-chip microcomputer selects resistance to realize being connected with 1 pin of PWM control circuit for pulse-width modulation 19 by electronic switch 25 switchings, and 9 pin of PWM pulse-width modulation circuit, 10 pin are connected with DC voltage booster circuit 15;
The P3.0 of single-chip microcomputer is connected with clock line with the data wire of digital display circuit 27 with the P3.1 port; The P1.3 port of single-chip microcomputer is connected with temperature sensing circuit 29;
The P1.2 port of single-chip microcomputer is connected with the positive pole of batteries 3 by voltage sampling circuit 30;
Voltage sampling circuit 30 is gathered the magnitude of voltage of batteries 3 outputs, if when the voltage of batteries 3 is lower than 10.6V voltage, singlechip microprocessor output control signal is cut off the direct current input; TL494 voltage type PWM pulse-width modulation circuit is adopted in PWM output, and has externally connected some resistance pressure-dividing networks, switches different voltage ratios by electronic switch 25, control realizes the output of 9 gear voltages, i.e. 45V, 90V, 135V, 180V, 225V, 270V, 315V, 360V, 400V, by detecting output voltage, demonstrate current voltage output value simultaneously; Inverter control circuit is through the stable voltage of rectifying and wave-filtering output; and by controlling the make-and-break time of bridge-type power drive metal-oxide-semiconductor; the realization output voltage frequency divides 5 gears to change; be 0.125Hz; 0.25Hz; 0.5Hz; 1Hz; 2Hz, the change of electric voltage frequency is passed through by key control, and real-time sampling shows with number; output protection circuit is used for the testing circuit operation and in time system implementation is protected when breaking down; as overvoltage protection and overcurrent protection, when the curtage sensor arrived overrate, electronic protection circuit sent overcurrent to microprocessor; the overvoltage protection signal; this moment, microprocessor blocked drive signal; turn-off the switching device in the converter, cut off overcurrent; the overvoltage fault, the safety of assurance inverter controller 4.
Be specially:
The P0 port of single-chip microcomputer is connected with acp chip SJA1000 (U4) D0～D7 data wire of CAN telecommunication circuit 28 as data/address bus, SJA1000 is connected with TXD, the RXD end of CAN transceiver PCA82C250 (U7) by isolating device 6N137 (U5, U6), output forms the CAN communication bus interface and draws a CAN bus cable 5 and be connected order and the data of SJA1000 by being issued by host computer 7 on the interrupt mode reception CAN bus with the CAN interface card of host computer 7 (server) CAN_H by CAN transceiver PCA82C250 with the CAN_L end at last; In order to make the communication of CAN bus data reliable and stable, answer one 120 ohm in parallel build-out resistor at the two ends of CAN bus cable 5.
The P1 port of single-chip microcomputer (U3) has 8, and wherein 4 (P1.0～P1.3 pin) as the A/D conversion, other 4 (P1.4～P1.7 pin) is as I/O mouth output drive signal.Be connected on the divider resistance of output filtering 18 as the P1.0 of A/D and P1.1, detect the output voltage values and the present load current value of current inverter controller 4, and detected electric current, magnitude of voltage uploaded on host computer 7 servers by CAN preserve; Be connected to the output of storage battery as the P1.2 of A/D, detect the discharge capacity of batteries 3, when being lower than 10V, voltage represents the accumulator electric-quantity deficiency, then single-chip microcomputer is immediately at P1.4 output high level, turn-off PWM pulse-width modulation circuit TL494 (U1) output pulse signal, thereby stop inverter controller work, and charge a battery as early as possible with buzzer BZ1 audible and visual alarm.Be connected to temperature sensing circuit 29 as the P1.3 of A/D and detect the current temperature value of inverter controller 4, examine filter inverter controller 4 in operate as normal or when single failure takes place, its inner contravariant transformer, pcb board and other component temperatures can not be too high, in order to avoid influence personal safety or have influence on the operate as normal of peripheral devices, therefore adopted temperature sensor that the working temperature of inverter controller 4 is monitored.Surpass 70 ℃ when single-chip microcomputer detects temperature, use buzzer BZ1 audible and visual alarm immediately, and the shutoff pwm signal quits work inverter controller.The P1.4 of single-chip microcomputer is connected to the 3rd pin of TL494 (U1), being used for control turn-offs TL494 (U1) output pulse width carving system signal, P1.5 and P1.6 pin are used for the output pulse width modulation signal to Drive and Control Circuit 22, control inversion control and push-pull output circuit 17 output ladder square wave alternating-current voltages, and according to the frequency of the requirement of host computer control output AC voltage, supply with the mining site electrode power supply, Drive and Control Circuit has adopted 2 triodes, recommend output and adopt 4 high-power MOS tube SPA11N80C3, this device withstand voltage reaches 800V, maximum current 11A can satisfy practical application fully.The P1.7 pin of single-chip microcomputer is used for exporting and drives buzzer BZ1 audible and visual alarm signal, indicates the operating state of current inverter controller, and reminds people is noted.
The P2 port of single-chip microcomputer (U3) is mainly as the I/O mouth, reality has been used 4 pin (P2.0～P2.3 pin), the break-make that is used to control one group of electronic switch 25 that is made of resistor network and CD4051 selects to connect different resistance, to change PWM control circuit for pulse-width modulation 19 output duty of ratio, reach the purpose of the different voltages of output voltage.Wherein, P2.3 is a sheet choosing end, and when not having chip selection signal for CD4051, CD4051 is a high-impedance state, dividing potential drop output resistance maximum, inverter controller 4 output voltage minimums (being 45V) at this moment; When P2.0～P2.2 pin output low level (high level represents that with 1 low level is represented with 0) all, promptly to export 000 o'clock, the 1st resistor network connected inverter controller 4 output voltage 90V; When exporting 001, the 2nd resistor network connected inverter controller 4 output voltage 135V; When exporting 010, the 3rd resistor network connected inverter controller 4 output voltage 180V; When exporting 011, the 4th resistor network connected inverter controller 4 output voltage 225V; When exporting 100, the 5th resistor network connected inverter controller 4 output voltage 270V; When exporting 101, the 6th resistor network connected inverter controller 4 output voltage 315V; When exporting 110, the 7th resistor network connected inverter controller 4 output voltage 360V; When exporting 111, the 8th resistor network connected inverter controller 4 output voltage 400V.By this switching mode, realize selecting the output of different voltages.
The P3 port of single-chip microcomputer (U3) has 8 (P3.0～P3.7 pin) mainly as the I/O mouth, and wherein P3.0, P3.1 are connected with the charactron display circuit, is used for serial output and shows that show 5 figure places, content comprises 2 bit periods, the ac voltage of 3 figure places.16 pin that P3.2 is used as the SJA1000 chip that external interrupt INT0 and CAN communicate by letter are connected, and are used for interrupting receiving the CAN bus data, when host computer has data distributing to inverter controller, start by this external interrupt notice single-chip microcomputer and to receive the CAN bus data.P3.3, P3.4 are used as overcurrent-overvoltage and detect, be connected with the overcurrent-overvoltage control circuit 21 that constitutes by comparator HA17393 (U2), excessive when inverter controller 4 output voltages, load is too heavy or during output short-circuit, overcurrent-overvoltage control circuit 21 sends detected signal on P3.3, the P3.4 pin of single-chip microcomputer, single-chip microcomputer inquires P3.3, when P3.4 has signal, turn-off PWM control circuit for pulse-width modulation 19, stop inverter controller 4 work.The P3.5 pin free time is not used.P3.6, P3.7 are read-writes, and read-write 5 pin, 6 pin of the SJA1000 chip of communicating by letter with CAN are connected respectively, are used to read and write the receive data buffer and the special function register of SJA1000 inside.
In inverter controller 4, also having a Key Circuit is pwm pulse width modulation circuit TL494 (U1) 19, but it is the pulsewidth modulation circuit (being the EDM Generator of Adjustable Duty Ratio joint) of a fixed frequency, pulse-width modulation realizes the output pulse width adjusting by 1 pin of single-chip microcomputer (U3) control electronic switch 25 convert resistance network output impedance change U1, the input of 2 foot fault difference amplifiers.U1 is built-in linear saw-tooth wave oscillator, frequency of oscillation is by external resistance and the capacitance adjustment of 5 pin, 6 pin of U1.The pulse-width signal of TL494 (U1) output is realized high pressure output at the step-up transformer that 9 pin, the output of 10 pin drive in the high-power MOS circuit promotion DC voltage booster circuit 15, the voltage of DC voltage booster circuit 15 output is through directly being linked into behind the current rectifying and wave filtering circuit 16 mainly in the inversion control of being made up of 4 large-power MOS parts and push-pull output circuit 17, this circuit finally produces the alternating voltage that we need under the control of single-chip microcomputer (U3), export to the mining site electrode power supply.
Simultaneously, the output voltage behind the process current rectifying and wave filtering circuit 16 feeds back to 1 pin of TL494 (U1) again through resistive feedback circuit 20, the stability of the pulse width signal output of control TL494 (U1).
As shown in Figure 4, adjuster 14 is error voltage amplifiers, adopts Voltage Feedback to regulate its transfer function G
1(s) expression, inverse control system is output as voltage (u
o), time scale control and pulse forming procedure can equivalence be a linear scale link, for the voltage type PWM mode, its output variable is a pulse duty factor, δ=K
1(u
c), so the transfer function K of this link
1Expression.Inverter main circuit 12 comprises inverse switch circuit, contravariant transformer, output rectifier and filter, and wherein Tr is the inverter main circuit switching tube, and inverter main circuit adopts Buck formula push pull converter topological structure, and T is a contravariant transformer, primary and secondary voltage ratio V
1/ V
2=N, LC is the output low pass filter, the transfer function of this part is made as G
2(s); R1, R2 are the output voltage feedback circuit, also are proportional components, K
2=R
2/ (R
1+ R
2), its transfer function is made as H (s).Inverse control system in the accompanying drawing 4 form that can be transformed into transfer function is represented (as shown in Figure 5) like this.Therefore, the output variable Out of inverse control system (s) is to input variable (u
g) closed loop transfer function, be:
G in the formula (s)=K
1G
1(s) G
2(s), G (s) is called the forward path transfer function.
Pass between feedback signal b (s) and the error signal e (s) is system's open-loop transfer function, that is:
Systematic error signal e (s) and input variable (u
g) between relation be called error transfer function, that is:
The output variable Out of inverse control system (s) is to interference signal u
i(s) closed loop transfer function, is:
By to the inverse control system transfer function analysis, adopt the control of STC12C5A60S2 mcu programming, regulate the width of pwm pulse with the error signal of given voltage and feedback voltage, can realize the reliable and stable of output voltage.
Charging-discharging controller 2 is important component parts of whole electric supply installation, in order to prolong the working life of storage battery, must be limited situations such as the overcharging of batteries 3, overdischarge, deep charge, load overcurrent and reverse charges, be controlled the discharge of solar module 1 charging and batteries 3 simultaneously according to regional mining site power demands.
As shown in Figure 6, adopt the management of charging and discharging of single channel bypass type realization to battery, D1 is the counnter attack charging diode, D2 is anti-reverse diode, and K1 and K2 make electronic switch with metal-oxide-semiconductor, and K1 is a controller charge circuit switch, K2 is the battery discharging switch, and Fs is a fuse.K1 is connected in parallel on the output of solar module, when battery tension greater than being full of when cutting off voltage, in order to guarantee that overcharging can not appear in storage battery, at this moment CPU control K1 switch conduction, D1 ends, and solar energy stops charge in batteries, has prevented overcharge of a battery effectively.At night or overcast and rainy, when battery tension during greater than the voltage of the solar module of outside output, the K1 of CPU control at this moment switch conduction, D1 ends, and can prevent effectively that storage battery is to the solar cell reverse charge.Detect control circuit 31 and at any time storage battery is detected, when load current overload or short circuit occurred greater than rated current, the battery discharging of CPU control at this moment K switch 2 disconnected, and has played the effect of overload protection and short-circuit protection.When storage battery was pressed less than overdischarge simultaneously, K2 opened circuit, and plays over.When batteries 3 operate as normal of charging-discharging controller 2 management, just can power supply be provided for the load 32 of inverter controller 4 and common inverter 6 formations by output voltage.
The voltage and the frequency values of electric supply installation output are assigned instruction by host computer by the CAN bus, the frequency of voltage can be switched variation between 0.125Hz, 0.25Hz, 0.5Hz, 1Hz, five shelves of 2Hz, the monolateral value of output voltage can be switched adjusting, the reliablely and stablely supply area mining site high-field electrode electricity consumption of the voltage of output between 45V, 90V, 135V, 180V, 225V, 270V, 315V, 360V, nine gears of 400V.
When needs were powered, server issued power-on command, and the CAN message information comprises power-on command, output voltage values and 3 information of frequency.During shutdown, server issues shutdown command, and slave computer receives that this order back cuts off storage battery power supply.
After electric supply installation (CAN node) is received power-on command, finish 4 tasks:
(1) connects storage battery and begin to produce inverter; (2) the suitable voltage of switched voltage gear output; (3) the suitable electric voltage frequency of switching cycle gear output is connected storage battery; (4) actual voltage, electric current and the frequency of exporting of detection, and formation CAN message is uploaded onto the server, and uploads to comprise magnitude of voltage, current value and frequency.
Realize the mining site electrode power supply of uranium ore resource electrical prospecting with the hardware composition proposal of electrode power supply device of the present utility model, its job step is as follows:
(1) carrying out the hardware entities circuit earlier connects.
Connect solar module 1, charge controller 2, batteries 3, inverter controller 4, CAN bus cable 5, general inverter 6, host computer (notebook computer) 7 (containing the CAN interface card), high-tension cable 10, mining site electrode 8, power supply accessory power outlet plate 9 by Fig. 1.Also can disconnect earlier with inverter 6, power supply accessory power outlet plate 9.
(2) open host computer 7, operational communications software, inverter controller 4 power-on enter normal operating conditions simultaneously.Upper computer software is provided with running parameter, sends order by the CAN bus to each substation.
(3) inverter controller 4 is as a substation on the CAN bus, the order that reception host computer 7 issues is also made and being replied, inverter controller 4 is started working according to the order that host computer issues, and exports the alternating voltage that needs, and current magnitude of voltage, current value, frequency number are sent to host computer.
(4) the communication data form between inverter controller 4 and the host computer 7:
Host computer 7 issues the power-on command message, and the CAN message information comprises start (1 byte), output voltage values
3 information of (1 byte) and frequency (1 byte).Power-on command is used " P ", and communications all adopts ASCII character.
Output AC voltage has 9 shelves, issues to select to indicate with digital code 1-9, wherein:
1--45V shelves 2--90V shelves
3--125V shelves 4--170V shelves
5--215V shelves 6--260V shelves
7--305V shelves 8--350V shelves
The 9--400V shelves
The frequency of output AC voltage has 5 kinds, issues to select to indicate with digital code 1-5, wherein:
1--0.5 second cycle 2--1 cycle second
3--2 cycle second 4--4 cycle second
5--8 cycle second
After inverter controller 4 is received the order of host computer, finish 4 tasks:
1. connect storage battery and begin to produce inverter
2. the switched voltage gear is exported suitable voltage
3. the switching cycle gear is exported suitable electric voltage frequency
4. detect magnitude of voltage, electric current and the frequency of actual output, form the CAN message and upload to PC, upload message information and comprise: magnitude of voltage 3 bytes (V), current value 3 bytes (mA), frequency 1 byte (second).
As: suppose that current detection is output voltage 170V to wanting information transmitted, electric current 126mA, the frequency in 2 seconds cycles
Then the actual transmissions content is: 31H, and 37H, 30H, 31H, 32H, 36H, 31H be totally 7 bytes (ASCII).
The form of host computer 7 transmission command frames is as follows:
| The | Command type | 1 | |
The frame that inverter controller 4 sends to host computer 7
The substation is as follows to the form of host computer transmit frame:
| Frame type | The address | Status Type |
Frame type: for 0DCH represents the status frames (start or off-mode) that the power supply substation sends to host computer
| Frame type | The | Data | 1 | |
|
...... |
Frame type: for 0DBH represents the Frame that the power supply substation sends to host computer, each lattice is 1 byte
(5) host computer 7 issues the shutdown command message, and the CAN message information comprises shutdown (1 byte), as " G ".Slave computer receives that this order back cuts off storage battery power supply.
(6) by data communication constantly as required between host computer 7 and the inverter controller 4, form close master slave relation, reach mining site electrode power supply needs, finish the DATA REASONING of uranium ore resource electrical prospecting.
Claims (8)
1. intelligent power supply control device for uranium ore resource exploration, comprise storage battery, solar module (1), inverter controller (4), charging-discharging controller (2), the mining site high-field electrode, total line traffic control of CAN and data presentation device, charging-discharging controller (2) carries out management of charging and discharging to storage battery, the CAN bus realizes electric supply installation and host computer (7) data communication bus, data presentation device shows the alternating voltage and the frequency of power supply control apparatus output, it is characterized in that: it is core that described inverter controller (4) adopts the STC single-chip microcomputer, it is the inverter controller of an output staircase waveform, it is converted to the electricity consumption of interchange staircase voltage output supply mining site high-field electrode with the electric energy of storage battery, output voltage and frequency values are assigned by the CAN bus by host computer (7) and are instructed single-chip microcomputer, control signal is exported in the instruction that single-chip microcomputer is assigned according to host computer (7), make the alternating voltage of inverter controller (4) by the staircase waveform of predetermined value output, output voltage frequency can be at 0.125Hz, 0.25Hz, 0.5Hz, 1Hz, switch variation between five shelves of 2Hz, the monolateral value of output voltage can be at 20V, 45V, 90V, 135V, 180V, 225V, 270V, 315V, 360V, switch between ten shelves of 400V and regulate; When after the battery discharging during power shortage, single-chip microcomputer will cut out the inverter controller output AC voltage automatically, and solar module (1) charges a battery by charging-discharging controller simultaneously.
2. a kind of intelligent power supply control device for uranium ore resource exploration according to claim 1; it is characterized in that: inverter controller (4) detects protection and sound light alarming circuit by overcurrent, overvoltage; electric weight to storage battery detects control; and receive the order and the data of host computer (7) by the CAN bus; these data are carried out PWM modulation and pid algorithm control, change output voltage amplitude and frequency.
3. a kind of intelligent power supply control device for uranium ore resource exploration according to claim 1 and 2, it is characterized in that: charging-discharging controller (2) is by controlling and limit the overcharging of storage battery, overdischarge, deep charge, load overcurrent and reverse charge, controls the output to electrode load of solar cell and storage battery according to regional mining site power demands simultaneously.
4. a kind of intelligent power supply control device for uranium ore resource exploration according to claim 1 and 2, it is characterized in that: the both positive and negative polarity of solar module (1) is connected to the 1-2 end of charging-discharging controller (2), the both positive and negative polarity of batteries (3) is connected to the 3-4 end of charging-discharging controller (2), the input of inverter controller (4) is connected respectively to the 5-6 end of charging-discharging controller (2), and the positive and negative electrode output of inverter controller (4) is connected with positive pole, the negative pole of regional mining site measurement electrode (8) by cable (10); CAN communication module in the inverter controller is core with SJA1000, adopts CAN bus cable (5) and host computer (7) server to transmit data.
5. a kind of intelligent power supply control device for uranium ore resource exploration according to claim 4, it is characterized in that: the 5-6 end of charging-discharging controller (2) is connected respectively with the input of general inverter (6), and the output of the alternating current 220V of general inverter (6) is connected with power supply accessory power outlet plate (9).
6. a kind of intelligent power supply control device for uranium ore resource exploration according to claim 4, it is characterized in that: solar module (1) is selected the APM36P110W147x68 model for use, performance parameter is 110W/17.5V/6.3A, uses 2 or the use in parallel of multiple signle crystasl silion cell plate; Batteries (3) comprises the storage battery of 1 12V/60AH; General inverter (6) is selected for use about 200W; Inverter controller (4) has the CAN interface, and the CAN bus cable (5) by 2 cores couples together with host computer (7) and carries out remote data communication; Inverter controller (4) is accepted the Long-distance Control of host computer (7), host computer (7) can be assigned instruction, indication inverter controller (4) shutdown, start power supply, the height of output voltage, the speed of output frequency, to the status data of the current real work of host computer transmission inverter controller (4), comprise magnitude of voltage, frequency values, current value simultaneously.
7. a kind of intelligent power supply control device for uranium ore resource exploration according to claim 4 is characterized in that:
The inverter controller circuit is a core with STC12C5A08AD single-chip microcomputer (U3), and this single-chip microcomputer one has 4 I/O port P0, P1, P2 and P3, and each port accounts for 8 pin positions; The static serial that its UART serial ports is used for 5 figure places shows;
The P0 port of single-chip microcomputer is connected with the acp chip SJA1000 (U4) of CAN telecommunication circuit (28) by data/address bus, acp chip SJA1000 (U4) is connected with the CAN interface of host computer (7) by the CAN communication bus interface, receives order and the data that host computer (7) issues by interrupt mode; Or at the two ends of CAN communication bus one 120 ohm in parallel resistance.
The P1.0 of single-chip microcomputer is connected by the divider resistance of electric current and voltage Acquisition Circuit (24) with output filter circuit (18) with the P1.1 port;
The P1.5 of single-chip microcomputer is connected by the metal-oxide-semiconductor of Drive and Control Circuit (22) with inversion control push-pull output circuit (17) with the P1.6 port, the output of inversion control push-pull output circuit (17) constitutes overcurrent-overvoltage testing circuit (23) by series and parallel power resistor and HA17393 comparator, and overcurrent-overvoltage testing circuit (23) is connected with the P3.4 port with the P3.3 of single-chip microcomputer;
The P1.4 port of single-chip microcomputer is connected with 4 pin of PWM control circuit for pulse-width modulation (19) by overcurrent-overvoltage control circuit (21), totally 8 ports of the P2.0～P2.7 of single-chip microcomputer selects resistance to realize being connected with 1 pin of PWM control circuit for pulse-width modulation (19) by electronic switch (25) switching, and 9 pin of PWM pulse-width modulation circuit, 10 pin are connected with DC voltage booster circuit (15);
The P3.0 of single-chip microcomputer is connected with clock line with the data wire of P3.1 port with digital display circuit (27); The P1.3 port of single-chip microcomputer is connected with temperature sensing circuit (29);
The P1.2 port of single-chip microcomputer is connected with the positive pole of batteries (3) by voltage sampling circuit (30);
Batteries (3) is connected with the input of DC voltage booster circuit (15), directly be linked in inversion control and the push-pull output circuit (17) behind the voltage process current rectifying and wave filtering circuit (16) of DC voltage booster circuit (15) output, pass through 1 pin that resistive feedback circuit (20) feeds back to PWM control circuit for pulse-width modulation (19) again through the output voltage behind the rectifying and wave-filtering (16), this circuit is output AC voltage under the control of single-chip microcomputer (U3).
8. a kind of intelligent power supply control device for uranium ore resource exploration according to claim 7, it is characterized in that: voltage sampling circuit (30) is gathered the magnitude of voltage of batteries (3) output, when if the voltage of batteries (3) is lower than 10.6V voltage, singlechip microprocessor output control signal is cut off the direct current input; TL494 voltage type PWM pulse-width modulation circuit is adopted in PWM output, and has externally connected some resistance pressure-dividing networks, switches different voltage ratios by electronic switch (25), control realizes the output of 9 gear voltages, i.e. 45V, 90V, 135V, 180V, 225V, 270V, 315V, 360V, 400V, by detecting output voltage, demonstrate current voltage output value simultaneously; Inverter control circuit is through the stable voltage of rectifying and wave-filtering output; and by controlling the make-and-break time of bridge-type power drive metal-oxide-semiconductor; the realization output voltage frequency divides 5 gears to change; be 0.125Hz; 0.25Hz; 0.5Hz; 1Hz; 2Hz, the change of electric voltage frequency is passed through by key control, and real-time sampling shows with number; output protection circuit is used for the testing circuit operation and in time system implementation is protected when breaking down; as overvoltage protection and overcurrent protection, when the curtage sensor arrived overrate, electronic protection circuit sent overcurrent to microprocessor; the overvoltage protection signal; this moment, microprocessor blocked drive signal; turn-off the switching device in the converter, cut off overcurrent; the overvoltage fault, the safety of assurance inverter controller (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201894773U CN201563071U (en) | 2009-10-16 | 2009-10-16 | Uranium exploration intelligent power supply control device |
| CN2009101862527A CN101702526B (en) | 2009-10-16 | 2009-10-16 | Intelligent power supply control device for uranium ore resource exploration |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201894773U CN201563071U (en) | 2009-10-16 | 2009-10-16 | Uranium exploration intelligent power supply control device |
| CN2009101862527A CN101702526B (en) | 2009-10-16 | 2009-10-16 | Intelligent power supply control device for uranium ore resource exploration |
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| Publication Number | Publication Date |
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| CN201563071U true CN201563071U (en) | 2010-08-25 |
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| CN2009101862527A Expired - Fee Related CN101702526B (en) | 2009-10-16 | 2009-10-16 | Intelligent power supply control device for uranium ore resource exploration |
| CN2009201894773U Expired - Fee Related CN201563071U (en) | 2009-10-16 | 2009-10-16 | Uranium exploration intelligent power supply control device |
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| CN2009101862527A Expired - Fee Related CN101702526B (en) | 2009-10-16 | 2009-10-16 | Intelligent power supply control device for uranium ore resource exploration |
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Also Published As
| Publication number | Publication date |
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| CN101702526A (en) | 2010-05-05 |
| CN101702526B (en) | 2012-07-18 |
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