CN102437738A - Power supply system of high voltage direct transformation electrolytic power supply and method for realizing high voltage direct transformation electrolytic power supply - Google Patents
Power supply system of high voltage direct transformation electrolytic power supply and method for realizing high voltage direct transformation electrolytic power supply Download PDFInfo
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Abstract
The invention discloses a power supply system of a high voltage direct transformation electrolytic power supply and a method for realizing the high voltage direct transformation electrolytic power supply. The power supply system consists of A, B, and C phases of power supply systems with a completely identical structure, and is characterized in that: the power supply system of each phase comprises a digital signal processor (DSP) controller, a pulse width modulation drive controller, a multi-path signal acquisition and analogue/digital (A/D) conversion circuit, a plurality of circuit breakers, a plurality of current detection and conversion circuits, a forward and backward signal electro-optical converter, a forward and backward signal optical fiber branching device, a voltage detection circuit, a temperature detection circuit, a plurality of single power modules and the like. By the system and the method, a high-voltage alternating current series-parallel connection way is adopted, so that the voltage bearing capability of a single electrolytic power supply is lowered, electrolytic power is realized by rectification in a high voltage direct transformation way, a high-voltage power supply system can directly produce the metal electrolytic power of a nonferrous metallurgy enterprise, and the power supply requirement that the high-voltage power supply systems at the different power levels of 35kV and 10kV directly output different types of electrolytic power can be met.
Description
Technical field
The present invention relates to electrolysis power, especially relate to a kind of high straightening power transformation and separate the method that power supply is separated in electric supply system and high straightening power transformation thereof.
Background technology
Electrolysis power is a visual plant metallurgical, electrolytic non-ferrous metal, and in non-ferrous metallurgical enterprise, most nonferrous materialss all obtain through electrolysis production, and electrolysis power is DC low-voltage, big electric current, powerful power supply.High-power electrolysis power supply adopts transformer that high pressure is reduced, carries out rectification usually and handles and obtain electrolysis power, and in the process that obtains, attendant equipment is many, and rectification effect is poor, and utilization rate of electrical is low, is seriously restricting the raising of utilization rate of electrical.
At present, electrolysis power mainly contains following several kinds of forms in non-ferrous metallurgical enterprise:
1, adopts transformer that high voltage supply system (electric pressure is 35kV or 10kV) is reduced voltage to the electrolysis power required voltage, realize different output voltages by the pressure regulation contact usually; After obtaining suitable alternating voltage, carry out rectification output DC source again; Employing high-power silicon-controlled rectifying technology through regulating the silicon controlled angle of flow, is kept electrolysis power voltage and is realized the electrolysis load variations; Output adopts parallel way to realize the electrolysis power that needs, and obtains DC low-voltage, big electric current, powerful electrolysis power;
2, owing to adopt the finishing technique of high-power silicon controlled rectifier,, reach corresponding dc electrolysis power supply, tend to produce a large amount of harmonic waves through regulating pressure regulation contact and thyristor operating angle.For fear of the generation that perhaps reduces harmonic wave, thus adopt ten two-phases arrangement connected mode to carry out rectification earlier, and then the electrolysis power after a plurality of rectifications is carried out parallel connection, thus realize high-power electrolysis power supply.
3, along with the development of power electronic device and PWM control technology; Electrolysis power based on Switching Power Supply has appearred on the market; But its input power supply still maintains on the basis of 380VAC voltage, in the nonferrous metallurgy industry production, still need pass through high-tension transformer and become 380VAC; And the power of each electrolysis power is little, needs to adopt the mode of exporting series connection to satisfy the demand of electrolysis power.
More than several kinds of ways of realization mainly contain disadvantage or deficiency:
1, the High Voltage Power Supply system becomes the transformer that 380VAC need have the pressure regulation contact, and the energy consumption of transformer itself had a strong impact on the utilance of electric energy, has also increased the input cost of equipment simultaneously, has consumed a large amount of nonferrous materialss;
2, in through the process of regulating thyristor operating angle, because the instantaneity of control procedure can produce a large amount of irregular harmonic waves, the quality of power supply of the power supply grid that has a strong impact on; The circuits for triggering of regulating thyristor operating angle are complicated, realize that difficulty is big;
3, adopt and to realize electrolysis power,, import power supply normally in the 380VAC electric power system because the restriction of withstand voltage and the electric current of power electronic device power can't realize high-power and high withstand voltage electrolysis power based on the PWM control switching.
Summary of the invention
First purpose of the present invention be to provide a kind of DC low-voltage, big electric current, high-power, regulation and control easily, can ensure fully that the quality of power supply of power supply grid, circuit are simple, reliable operation, high straightening power transformation that cost is low separate electric supply system; It directly adopts high voltage supply; The series connection form is adopted in the input of monomer power module; Parallel form is adopted in the output of monomer power module, thereby realizes that high straightening power transformation separates power supply.
Second purpose of the present invention is to provide a kind of and realizes that through many monomers power module high straightening power transformation separates the method for power supply; It is group with the single-phase high voltage; Every group of series connection inserts a plurality of monomer power modules, and the voltage that each monomer power module is born just reduces greatly; Each monomer power module input inserts circuit breaker, realizes the excision to the monomer power module; Monomer power module output carrying out parallel connection increases the electric current that electrolysis needs; Each monomer power module outlet side all has output parameter to detect and monitoring, and the electric parameter of collection is transferred to dsp controller system and carries out analyzing and processing.
First purpose of the present invention is achieved in that
Electric supply system is separated in a kind of high straightening power transformation; By identical in structure A phase electric supply system, B phase electric supply system and C mutually electric supply system form; Characteristic is: every phase electric supply system is formed by DSP (digital singnal processor) controller, pulse-width modulation (PWM) driving governor, multiplexed signal sampling and A/D change-over circuit, several circuit breakers (DL), several current detecting change-over circuit, forward signal electrical to optical converter, forward signal optical fiber splitter, reverse signal electrical to optical converter, reverse signal optical fiber splitter, voltage detecting circuit, temperature sensing circuit, several monomer power modules, LCDs, keyboard circuit and power circuit; The control coil of several circuit breakers links to each other with the breaker signal input of dsp controller through EBI respectively; Temperature sensing circuit all links to each other with the current signal input of dsp controller with the A/D change-over circuit through multiplexed signal sampling with several current detecting change-over circuit; The signal output part of dsp controller links to each other with the input of pulse-width modulation driving governor; The forward signal output of pulse-width modulation driving governor connects the input of forward signal optical fiber splitter through the forward signal electrical to optical converter; The output of forward signal optical fiber splitter connects the grid of the 1st insulated gate bipolar transistor (IGBT power switch pipe) in each monomer power module and the grid of the 4th insulated gate bipolar transistor respectively; The reverse signal output of pulse-width modulation driving governor connects the input of reverse signal optical fiber splitter through the reverse signal electrical to optical converter; The output of reverse signal optical fiber splitter connects the grid of the 2nd insulated gate bipolar transistor in each monomer power module and the grid of the 3rd insulated gate bipolar transistor respectively, and several monomer power modules are connected in parallel; In all parallelly connected contact of inserting a controlled circuit breaker of the input of each monomer power module; Obtain the total output of electrolysis power after several outputs of several monomer power modules are connected in parallel, two inputs of voltage detecting circuit are connected in parallel on the total output of electrolysis power; LCDs shows that with the data of dsp controller output links to each other, and keyboard circuit links to each other with the data input pin of dsp controller, and power circuit is other circuit supply.
Each monomer power module is made up of the 1st resistance R the 1, the 1st resistance R the 2, the 1st polar capacitor C1, the 1st capacitor C the 2, the 1st to the 10th diode D1-D10, the 1st to the 4th insulated gate bipolar transistor G1-G4 and transformer TR.
The output of the output of forward signal optical fiber splitter and reverse signal optical fiber splitter all is connected with the 1-4 insulated gate bipolar transistor respectively through optical fiber.
Second purpose of the present invention is achieved in that
The method that power supply is separated in a kind of high straightening power transformation; Adopt bus to detect the form of monomer power module output voltage electric current; That is: with the three-phase alternating current (electric pressure is 35kV or 10kV) of high voltage supply system, be divided into three groups over the ground with single-phase, every group of single-phase electricity series connection inserts a plurality of monomer power modules; The voltage that each monomer power module is born will be divided equally on a plurality of monomer power modules; The voltage that each monomer power module is born just reduces greatly, all inserts a controlled circuit breaker at the input of each monomer power module, realizes the excision to this monomer power module; Killer switch closes, and will fault monomer power module be isolated rectification circuit; And the output of each monomer power module obtains the total output of electrolysis power after being connected in parallel, and the output current of each monomer power module carries out parallel connection and increases output current, thereby satisfies the electrolysis power needs of big electric current hundreds of thousands ampere; The output of each the monomer power module in same phase electric power system all has current detecting change-over circuit and temperature sensing circuit output current and temperature parameter; Voltage detecting circuit output voltage parameter in the total output of electrolysis power; Be used for detecting and monitoring; The electrical characteristic parameters such as electric current that collect total voltage, temperature and different monomers power module all are transferred to dsp controller respectively through multiplexed signal sampling and A/D change-over circuit carry out data analysis and processing; Again data analysis and process result are transferred to the pulse-width modulation driving governor; Export the two-way waveform drive signal of opposite duty ratio each other by the pulse-width modulation driving governor; Be forward signal and reverse signal; Forward signal is controlled the insulated gate bipolar transistor that contains the fine driver of laser/light in each monomer power module through reverse signal electrical to optical converter and the output of reverse signal optical fiber splitter through forward signal electrical to optical converter and forward signal optical fiber splitter, reverse signal successively successively, to drive corresponding monomer power module; In case detect some monomer power modules fault is arranged; Can adopt bus mastering mode that the circuit breaker of the input end of the monomer power module of fault is excised through dsp controller; Make its bypass and do not influence, ensure the reliability and stability of whole electrolysis power system.
The present invention directly all assigns to each monomer power module with the three-phase alternating current of high voltage supply system (electric pressure is 35kV or 10kV); On implementation, adopt redundant technique; Adopting increases a plurality of monomer power modules; Reduce the withstand voltage that each monomer power module is born, because of the requirement of electrolysis power is mainly reflected in voltage, electric current, the temperature parameter of the DC power supply of outlet side, and in the realization of gross power.
The present invention adopts the implementation of series average-voltage at the input side (being AC side) of electrolysis power; The electric current that the AC side of each monomer power module flows through is consistent, and the precondition that AC side flows through electric current is exactly: the output DC side of monomer power module must have electric current output simultaneously.If a certain monomer power module does not have output DC stream, then whole electrolysis power system does not have electric current output, thereby each monomer power module must trigger simultaneously.The monomer power module adopts the IGBT power switch pipe to realize; Because of the electrolysis power system uses at high voltage supply system; The IGBT power switch pipe adopts the IGBT with laser input control end, can realize the buffer action of high voltage supply system and light-current system so effectively.
The present invention is to be the control core with the dsp controller; Realization is to the detection and the monitoring of electrical characteristic parameters such as the voltage of monomer power module outlet, electric current, temperature; The electrical characteristic parameter that these collect is input in the dsp controller; Dsp controller carries out data analysis and processing to the Various types of data of gathering; Can realize signal amplification, A/D, the Filtering Processing of the electrical characteristic parameter of each monomer power module on the one hand, go out the electrical characteristic parameter information of each monomer power module on the other hand through liquid crystal display displays; Dsp controller is exported the two-way waveform PWM drive signal of opposite duty ratio each other through the pulse-width modulation driving governor: forward signal and reverse signal; Forward signal and the reverse signal electrical to optical converter through separately respectively convert to behind the light signal again by optical fiber splitter along separate routes; Adopt Optical Fiber Transmission; Input is also controlled the two-way IGBT power switch pipe in each monomer power module; Guarantee and realize the synchronous triggering of each monomer power module, drive and trigger corresponding monomer power module, output voltage and electric current.
The present invention adopts Optical Fiber Transmission, optical fiber synchronous triggering control technology; Trigger when realizing a plurality of monomer power module, Synchronization Control; Both ensured the electrolysis power system reliability; Also realized the buffer action of high voltage and low-voltage, reached the purpose of all pressing constant current of every monomer power module in AC side.
In course of normal operation; Dsp controller is according to the electrical characteristic parameter of the monomer power module parameter that collects, and analyzing and processing data has fault in case detect certain monomer power module; Just can adopt bus mastering mode that the monomer power module of fault is excised at the circuit breaker of AC side in time; Make its bypass and do not influence, and the variation of adjustment triggering signal, increase the output current of each monomer power module synchronously; Do not influence the integral body output of source current, thereby ensured the reliability and stability of electrolysis power system; Dsp controller also can be regulated the duty ratio of pulse-width modulation driving governor control signal automatically, and does not influence whole output current, thereby realizes that each monomer power module output current is consistent, reaches the purpose of monomer power module output current-sharing; Other monomer power module of work still can bear the withstand voltage limit of high voltage supply system electric pressure, has ensured the reliability of whole electrolysis power system.
Power supply output employing of the present invention waits the parallel connection of voltage to increase the output current of electrolysis power, and several monomer power modules adopt the building blocks stack, utilize redundant technique, realize the voltage ability to bear of monomer power module; Several monomer power supply outputs improve output current through isobaric parallel connection, realize the purpose of electrolytic metal material
The present invention need not adopt the transformer of 380v, but directly is electrically connected with high-voltage alternating, has improved the utilance of electric energy effectively.
In a word; The present invention adopts the high-voltage alternating series-parallel system; To reduce the voltage ability to bear of monomer electrolysis power; Mode through the high pressure Direct Transform is rectified into electrolysis power, reaches to realize that the High Voltage Power Supply system directly produces the electrolytic etching of metal power supply of non-ferrous metallurgical enterprise, can realize the power reguirements and needs of the dissimilar electrolysis powers of the direct output of high voltage supply system of 35kV, 10kV different electrical power grade.
Description of drawings
Fig. 1 is the principle schematic of A phase electric supply system of the present invention;
Fig. 2 is the sketch map of several monomer power modules in the A phase electric supply system of the present invention;
Fig. 3 is the sketch map of single monomer power module.
Embodiment:
Below in conjunction with embodiment and contrast accompanying drawing method of the present invention is further explained.
Electric supply system is separated in a kind of high straightening power transformation; By identical in structure A phase electric supply system, B phase electric supply system and C mutually electric supply system form; Every phase electric supply system is formed by dsp controller, pulse-width modulation driving governor, multiplexed signal sampling and A/D change-over circuit, several circuit breakers, several current detecting change-over circuit, forward signal electrical to optical converter, forward signal optical fiber splitter, reverse signal electrical to optical converter, reverse signal optical fiber splitter, voltage detecting circuit, temperature sensing circuit, several monomer power modules, LCDs, keyboard circuit and power circuit; The control coil of several circuit breakers links to each other with the breaker signal input of dsp controller through EBI respectively; Temperature sensing circuit all links to each other with the current signal input of dsp controller with the A/D change-over circuit through multiplexed signal sampling with several current detecting change-over circuit; The signal output part of dsp controller links to each other with the input of pulse-width modulation driving governor; The forward signal output of pulse-width modulation driving governor connects the input of forward signal optical fiber splitter through the forward signal electrical to optical converter; The output of forward signal optical fiber splitter connects the grid of the 1st insulated gate bipolar transistor (IGBT pipe) in several monomer power modules and the grid of the 4th insulated gate bipolar transistor respectively; The reverse signal output of pulse-width modulation driving governor connects the input of reverse signal optical fiber splitter through the reverse signal electrical to optical converter; The output of reverse signal optical fiber splitter connects the grid of the 2nd insulated gate bipolar transistor in several monomer power modules and the grid of the 3rd insulated gate bipolar transistor respectively, and several monomer power modules are connected in parallel; In all parallelly connected contact of inserting a controlled circuit breaker of the input of each monomer power module; Obtain the total output of electrolysis power after several outputs of several monomer power modules are connected in parallel, two inputs of voltage detecting circuit are connected in parallel on the total output of electrolysis power; LCDs shows that with the data of dsp controller output links to each other, and keyboard circuit links to each other with the data input pin of dsp controller, and power circuit is other circuit supply.
Each monomer power module is made up of the 1st resistance R the 1, the 2nd resistance R the 2, the 1st polar capacitor C1, the 2nd capacitor C the 2, the 1st to the 10th diode D1-D10, the 1st to the 4th insulated gate bipolar transistor G1-G4 and transformer TR; The common port of the common port of the 1st diode D1 anode and the 4th diode D4 negative electrode, the 2nd diode D2 anode and the 3rd diode D3 negative electrode is respectively as two end points of input; The common port of public termination the 1st polar capacitor C1 positive pole, the 1st insulated gate bipolar transistor G1 source electrode, the 3rd insulated gate bipolar transistor G3 source electrode, the 5th diode D5 negative electrode and the 7th diode D7 negative electrode of the 1st diode D1 negative electrode and the 2nd diode D2 negative electrode; The negative pole of the 1st polar capacitor C1 and the negative electrode that meets the 3rd diode D3 after the 1st resistance R 1 is connected; The common port of public termination the 2nd insulated gate bipolar transistor G2 drain electrode of the 3rd diode D3 negative electrode and the 4th diode D4 anode, the 4th insulated gate bipolar transistor G4 drain electrode, the 6th diode D6 anode and the 8th diode D8 anode; The drain electrode of the 1st insulated gate bipolar transistor G1 connects the common port of the 2nd insulated gate bipolar transistor G2 source electrode, the 5th diode D5 anode and the 6th diode D6 negative electrode; The drain electrode of the 3rd insulated gate bipolar transistor G3 connects the common port of source electrode, the 7th diode D7 anode and the 8th diode D8 negative electrode of the 4th insulated gate bipolar transistor G4; Two inputs of the primary coil of transformer TR connect the anode of the 7th diode D 7 and the anode of the 5th diode D5 respectively; Two outputs of the secondary coil of transformer TR connect the anode of the 9th diode D 9 and the anode of the 10th diode D10 respectively; The negative electrode of the 9th diode D 9 connects the common port of the 10th diode D10 negative electrode, the 2nd resistance R 2 one ends; The other end of the 2nd resistance R 2 is as the positive output end of this monomer power module; The centre tap of the secondary coil of transformer TR is as the negative output terminal of this monomer power module, the 2nd capacitor C 2 be connected in parallel on transformer TR secondary coil centre tap and the 9th diode D 9 negative electrode between.
Two inputs of the current detecting change-over circuit in each monomer power module are parallelly connected with the 2nd resistance R 2.
The output of the output of forward signal optical fiber splitter and reverse signal optical fiber splitter all is connected with the 1-4 insulated gate bipolar transistor respectively through optical fiber.
The method that power supply is separated in a kind of high straightening power transformation; Adopt bus to detect the form of monomer power module output voltage electric current; That is: with the three-phase alternating current (electric pressure is 35kV or 10kV) of high voltage supply system, be divided into three groups over the ground with single-phase, every group of single-phase electricity series connection inserts a plurality of monomer power modules; The voltage that each monomer power module is born will be divided equally on a plurality of monomer power modules; The voltage that each monomer power module is born just reduces greatly, all inserts a controlled circuit breaker at the input of each monomer power module, realizes the excision to this monomer power module; Killer switch closes, and will fault monomer power module be isolated rectification circuit; And the output of each monomer power module obtains the total output of electrolysis power after being connected in parallel, and the output current of each monomer power module carries out parallel connection and increases output current, thereby satisfies the electrolysis power needs of big electric current hundreds of thousands ampere; The output of each the monomer power module in same phase electric power system all has current detecting change-over circuit and temperature sensing circuit output current and temperature parameter; Voltage detecting circuit output voltage parameter in the total output of electrolysis power; Be used for detecting and monitoring; The electrical characteristic parameters such as electric current that collect total voltage, temperature and different monomers power module all are transferred to dsp controller respectively through multiplexed signal sampling and A/D change-over circuit carry out data analysis and processing; Again data analysis and process result are transferred to the pulse-width modulation driving governor; Export the two-way waveform drive signal of opposite duty ratio each other by the pulse-width modulation driving governor; Be forward signal and reverse signal; Forward signal is controlled the insulated gate bipolar transistor that contains the fine driver of laser/light in each monomer power module through reverse signal electrical to optical converter and the output of reverse signal optical fiber splitter through forward signal electrical to optical converter and forward signal optical fiber splitter, reverse signal successively successively, to drive corresponding monomer power module; In case detect some monomer power modules fault is arranged; Can adopt bus mastering mode that the circuit breaker of the input end of the monomer power module of fault is excised through dsp controller; Make its bypass and do not influence, ensure the reliability and stability of whole electrolysis power system.
Claims (4)
1. electric supply system is separated in one kind high straightening power transformation; By identical in structure A phase electric supply system, B phase electric supply system and C mutually electric supply system form; It is characterized in that: every phase electric supply system is formed by dsp controller, pulse-width modulation driving governor, multiplexed signal sampling and A/D change-over circuit, several circuit breakers, several current detecting change-over circuit, forward signal electrical to optical converter, forward signal optical fiber splitter, reverse signal electrical to optical converter, reverse signal optical fiber splitter, voltage detecting circuit, temperature sensing circuit, several monomer power modules, LCDs, keyboard circuit and power circuit; The control coil of several circuit breakers links to each other with the breaker signal input of dsp controller through EBI respectively; Temperature sensing circuit all links to each other with the current signal input of dsp controller with the A/D change-over circuit through multiplexed signal sampling with several current detecting change-over circuit; The signal output part of dsp controller links to each other with the input of pulse-width modulation driving governor; The forward signal output of pulse-width modulation driving governor connects the input of forward signal optical fiber splitter through the forward signal electrical to optical converter; The output of forward signal optical fiber splitter connects the grid of the 1st insulated gate bipolar transistor in each monomer power module and the grid of the 4th insulated gate bipolar transistor respectively; The reverse signal output of pulse-width modulation driving governor connects the input of reverse signal optical fiber splitter through the reverse signal electrical to optical converter; The output of reverse signal optical fiber splitter connects the grid of the 2nd insulated gate bipolar transistor in each monomer power module and the grid of the 3rd insulated gate bipolar transistor respectively, and several monomer power modules are connected in parallel; In all parallelly connected contact of inserting a controlled circuit breaker of the input of each monomer power module; Obtain the total output of electrolysis power after several outputs of several monomer power modules are connected in parallel, two inputs of voltage detecting circuit are connected in parallel on the total output of electrolysis power; LCDs shows that with the data of dsp controller output links to each other, and keyboard circuit links to each other with the data input pin of dsp controller, and power circuit is other circuit supply.
2. electric supply system is separated in high straightening power transformation according to claim 1; It is characterized in that: each monomer power module is made up of the 1st resistance R the 1, the 2nd resistance R the 2, the 1st polar capacitor C1, the 2nd capacitor C the 2, the 1st to the 10th diode D1-D10, the 1st to the 4th insulated gate bipolar transistor G1-G4 and transformer TR; The common port of the common port of the 1st diode D1 anode and the 4th diode D4 negative electrode, the 2nd diode D2 anode and the 3rd diode D3 negative electrode is respectively as two end points of input; The common port of public termination the 1st polar capacitor C1 positive pole, the 1st insulated gate bipolar transistor G1 source electrode, the 3rd insulated gate bipolar transistor G3 source electrode, the 5th diode D5 negative electrode and the 7th diode D7 negative electrode of the 1st diode D1 negative electrode and the 2nd diode D2 negative electrode; The negative pole of the 1st polar capacitor C1 and the negative electrode that meets the 3rd diode D3 after the 1st resistance R 1 is connected; The common port of public termination the 2nd insulated gate bipolar transistor G2 drain electrode of the 3rd diode D3 negative electrode and the 4th diode D4 anode, the 4th insulated gate bipolar transistor G4 drain electrode, the 6th diode D6 anode and the 8th diode D8 anode; The drain electrode of the 1st insulated gate bipolar transistor G1 connects the common port of the 2nd insulated gate bipolar transistor G2 source electrode, the 5th diode D5 anode and the 6th diode D6 negative electrode; The drain electrode of the 3rd insulated gate bipolar transistor G3 connects the common port of source electrode, the 7th diode D7 anode and the 8th diode D8 negative electrode of the 4th insulated gate bipolar transistor G4; Two inputs of the primary coil of transformer TR connect the anode of the 7th diode D 7 and the anode of the 5th diode D5 respectively; Two outputs of the secondary coil of transformer TR connect the anode of the 9th diode D 9 and the anode of the 10th diode D10 respectively; The negative electrode of the 9th diode D 9 connects the common port of the 10th diode D10 negative electrode, the 2nd resistance R 2 one ends; The other end of the 2nd resistance R 2 is as the positive output end of this monomer power module; The centre tap of the secondary coil of transformer TR is as the negative output terminal of this monomer power module, the 2nd capacitor C 2 be connected in parallel on transformer TR secondary coil centre tap and the 9th diode D 9 negative electrode between.
3. electric supply system is separated in high straightening power transformation according to claim 1 and 2; It is characterized in that: the output of forward signal optical fiber splitter through optical fiber respectively with each monomer power module in grid and the grid of the 4th insulated gate bipolar transistor of the 1st insulated gate bipolar transistor is connected, the output of reverse signal optical fiber splitter pass through optical fiber respectively with each monomer power module in grid and the grid of the 3rd insulated gate bipolar transistor of the 2nd insulated gate bipolar transistor be connected.
4. one kind high method that power supply is separated in the straightening power transformation; It is characterized in that: with the three-phase alternating current of high voltage supply system, be divided into three groups over the ground with single-phase, every group of single-phase electricity series connection inserts a plurality of monomer power modules; The voltage that each monomer power module is born will be divided equally on a plurality of monomer power modules; The voltage that each monomer power module is born just reduces greatly, all inserts a controlled circuit breaker at the input of each monomer power module, realizes the excision to this monomer power module; Killer switch closes, and will fault monomer power module be isolated rectification circuit; And the output of each monomer power module obtains the total output of electrolysis power after being connected in parallel, and the output current of each monomer power module carries out parallel connection and increases output current, thereby satisfies the electrolysis power needs of big electric current hundreds of thousands ampere; The output of each the monomer power module in same phase electric power system all has current detecting change-over circuit and temperature sensing circuit output current and temperature parameter; Voltage detecting circuit output voltage parameter in the total output of electrolysis power; Be used for detecting and monitoring; The electrical characteristic parameters such as electric current that collect total voltage, temperature and different monomers power module all are transferred to dsp controller respectively through multiplexed signal sampling and A/D change-over circuit carry out data analysis and processing; Again data analysis and process result are transferred to the pulse-width modulation driving governor; Export the two-way waveform drive signal of opposite duty ratio each other by the pulse-width modulation driving governor; Be forward signal and reverse signal; Forward signal is controlled the insulated gate bipolar transistor that contains the fine driver of laser/light in each monomer power module through reverse signal electrical to optical converter and the output of reverse signal optical fiber splitter through forward signal electrical to optical converter and forward signal optical fiber splitter, reverse signal successively successively, to drive corresponding monomer power module; In case detect some monomer power modules fault is arranged; Can adopt bus mastering mode that the circuit breaker of the input end of the monomer power module of fault is excised through dsp controller; Make its bypass and do not influence, ensure the reliability and stability of whole electrolysis power system.
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| CN102946124A (en) * | 2012-10-25 | 2013-02-27 | 黑龙江大学 | Distributed power supply management device |
| CN103746553A (en) * | 2014-01-29 | 2014-04-23 | 中国科学院电工研究所 | High-voltage DC-DC (Direct Current to Direct Current) convertor and control method thereof |
| CN103746553B (en) * | 2014-01-29 | 2016-02-17 | 中国科学院电工研究所 | High pressure DC-DC converter and control method |
| CN104767414A (en) * | 2015-03-18 | 2015-07-08 | 南京航空航天大学 | Redundancy control method for ISOP inverter assembly system |
| CN104767414B (en) * | 2015-03-18 | 2017-06-13 | 南京航空航天大学 | A kind of redundancy control method of ISOP inverters combined system |
| CN104932380A (en) * | 2015-06-19 | 2015-09-23 | 中国船舶重工集团公司第七二六研究所 | Multi-mode and multi-channel power supply real-time monitoring system and method |
| CN104932380B (en) * | 2015-06-19 | 2017-07-21 | 中国船舶重工集团公司第七二六研究所 | The power supply real-time monitoring system and method for multi-mode multichannel |
| CN106787643A (en) * | 2017-02-20 | 2017-05-31 | 中山市鑫中亚电源科技有限公司 | A kind of electrolysis power control system |
| CN106802686A (en) * | 2017-02-20 | 2017-06-06 | 中山市鑫中亚电源科技有限公司 | A kind of electrolysis power intelligence control system |
| CN107508581A (en) * | 2017-07-27 | 2017-12-22 | 中国船舶重工集团公司第七二四研究所 | A kind of vacuum tube grid-control modulator implementation method based on fiber coupler |
| CN109422443A (en) * | 2017-08-30 | 2019-03-05 | 杭州渗源环境科技有限公司 | A kind of power supply cluster control system and method for the dehydration of mud electric osmose |
| CN109167521A (en) * | 2018-11-09 | 2019-01-08 | 佛山市杰创科技有限公司 | A kind of module combined type high-power high-frequency switch power supply and its workflow |
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