CN102497126B - Fan converter power unit driving circuit - Google Patents
Fan converter power unit driving circuit Download PDFInfo
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- CN102497126B CN102497126B CN201110434105.4A CN201110434105A CN102497126B CN 102497126 B CN102497126 B CN 102497126B CN 201110434105 A CN201110434105 A CN 201110434105A CN 102497126 B CN102497126 B CN 102497126B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The invention discloses a fan converter power unit driving circuit. The circuit comprises: a fiber interface module, a first photoelectric conversion circuit, an isolation driver, a parallel processing module and a sampling module. The parallel processing module generates a driving pulse which drives a power switch tube in a power unit according to a control signal transmitted by a main controller. Simultaneously, the parallel processing module determines a fault reason according to obtained electrical quantity information of the power unit, the information whether the power switch tube is over-temperature or a fault signal returned by the isolation driver and returns the fault information to the main controller so as to realize monitoring and recording of a fault situation of a fan converter power unit. A fault point can be specifically and timely found. The fault can be timely eliminated. Maintenance efficiency of the power unit and the fan converter power unit driving circuit can be increased.
Description
Technical field
The application relates to fan converter technical field, particularly relates to fan converter power unit driving circuit.
Background technology
Wind energy is as a kind of clean regenerative resource, utilized by extensive exploitation at present, wherein wind power generation becomes the most typical application form of wind energy, in the whole process of wind power generation, an important step of delivery of electrical energy is born by fan converter exactly, unsettled electric energy wind-driven generator being sent by fan converter changes into and the electric energy of electrical network same frequency with electric pressure, and transfers out by electrical network.
Along with scientific and technological development and practical application request, wind power generation is tending towards that unit is high-power, super high power future development, and the power grade of fan converter, also at development, develops into present several MVA by hundreds of kVA originally.The most important module of bearing unsteady flow task in fan converter is power cell, along with the continuous increase of single-machine capacity grade, traditional by single power switch pipe, such as IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) power cell that forms can not meet power requirement far away, must adopt power switch pipe parallel running mode.
The power cell of traditional single power switch pipe is because power is little, fault mode is less, integrity problem is easier to solve, so generally all adopt circuit structure simple in structure, control mode is also relatively simply too much, generally the pulse signal of upper and lower two pipes provides through two downlink optical fiber, all logics of pulse complete by master controller, drive circuit only completes the translation function of control signal to power switch pipe, in the high-power unit of power switch pipe parallel connection, because of its circuit complexity, power switch pipe synchronism requires high, electromagnetic environment is severe, fault mode complexity, if adopt traditional drive circuit, there is larger potential safety hazard in the course of work of power cell, and, in the time there is fault in power cell, cannot analyze failure cause, the recovery of fault also can only be undertaken by changing module, be unfavorable for revising of the functions, cause maintenance cost too high simultaneously.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of fan converter power unit driving circuit, reliably to realize the driving of the high-power unit to power switch pipe parallel connection, and has the function that fault judges, technical scheme is as follows:
A kind of fan converter power unit driving circuit, comprising: fiber interface module, the first photoelectric switching circuit, driver for isolating, parallel processing module, sampling module, wherein:
Described fiber interface module is for communicating between described drive circuit and master controller;
Described the first photoelectric switching circuit, offers described parallel processing module for the light signal receiving is converted to the signal of telecommunication, or the signal of telecommunication receiving is converted to light signal offers described fiber interface module;
Described sampling module, for gathering the electric parameters information of power cell, this electric parameters information comprises: direct voltage, direct current and the power switch pipe output current of described power cell;
Described parallel processing module, produce for driving the driving pulse of the power switch pipe in described power cell for the control signal sending according to the described master controller receiving, and judge the failure cause of this drive circuit according to the described fault message that collects analog quantity information, switching value information, driving pulse information or the passback of described driver for isolating, and described failure cause is uploaded to described master controller.
Preferably, described parallel processing module comprises: burst process submodule, fault judge submodule, analog acquisition submodule, switch acquisition submodule, communicator module, and drives signal to process submodule, wherein:
Described burst process submodule, for producing pulse signal according to the described control signal of described the first photoelectric switching circuit transmission;
Described driving signal is processed submodule, for described pulse signal is carried out to Dead Time adjustment processing, produce and drive the driving pulse of described power switch pipe, and this driving signal is processed submodule and the fault-signal of described driver for isolating passback is back to described fault is judged submodule;
Described analog acquisition submodule, for receiving the electric parameters information of described power cell;
Described switch acquisition submodule, for gathering the temperature relay of described power switch pipe, obtains the temperature information of described power switch pipe;
Described fault judges submodule, for the information gathering according to described analog acquisition submodule, the information of switch acquisition submodule, or the fault-signal of described driver for isolating passback, judges failure cause, and is back to described master controller through described communicator module.
Preferably, described fault judges that submodule comprises: analog quantity fault judges that submodule, switching value fault judge that submodule and pulse fault judge submodule, wherein:
Described analog quantity fault judges submodule, for the analog quantity information and the preset value that collect described in relatively, in the time that described analog quantity information is greater than described preset value, judges analog quantity fault;
Described switching value fault judges submodule, in the time collecting described temperature relay in attracting state, judges described power switch pipe and has excess temperature fault;
Described pulse fault judges submodule, for according to pulse period and the phase place of the pulse signal of described burst process submodule generation, judges pulse fault.
Preferably, described pulse fault judges that submodule comprises: burst pulse judges that submodule and impulse phase judge submodule, wherein:
Described burst pulse judges submodule, and for the described pulse signal receiving and burst pulse are compared, and described in described pulse signal high level width is not more than when narrow pulse width, judging described pulse signal is burst pulse;
Described impulse phase judges submodule, for the described pulse signal and the reference pulse that receive are compared, in the time that the phase place of described pulse is different with the phase place of described reference pulse, judges described impulse phase mistake.
Preferably, also comprise: power failure judge module, for magnitude of voltage and the reference voltage of the power supply of this drive circuit obtaining are compared, in the time that the magnitude of voltage of described power supply is less than described reference voltage, produces power failure information.
Preferably, also comprise: debugging interface and the second photoelectric switching circuit, wherein,
Described debugging interface, in the time debugging this drive circuit, communicates with described debug controller;
Described the second photoelectric switching circuit is connected with described debugging interface, offers described parallel processing module for the light signal receiving is converted to the signal of telecommunication, and the signal of telecommunication receiving is converted to light signal offers described debugging interface.
Preferably, described debugging interface comprises: up debugging interface and descending debugging interface, wherein:
Described descending debugging interface, the debug command of sending for receiving described debug controller;
Described up debugging interface, is back to described debug controller for the information that debug process is produced.
Preferably, described fiber interface module comprises: pulse signal interface, command signal interfaces and state back transfer interface, wherein,
Described pulse signal interface, the pulse signal producing for receiving described master controller, and offer described the first photoelectric switching circuit;
Described command signal interfaces, the command signal producing for receiving described master controller, and offer described the first photoelectric switching circuit;
Described state back transfer interface, offers described master controller for the state information and the fault message that receive the next described drive circuit of described the first photoelectric switching circuit transmission.
Preferably, described parallel processing module comprises on-site programmable gate array FPGA.
Preferably, described driver for isolating is high frequency transformer.
The technical scheme being provided from above the embodiment of the present application, described fan converter power unit driving circuit, utilize the control signal that parallel processing module sends according to master controller to produce the driving pulse that drives power switch pipe in described power cell, simultaneously, this parallel processing module is according to the electric parameters information of the power cell obtaining, whether power switch pipe the information of excess temperature, or the fault-signal of driver for isolating passback is judged failure cause, and fault message is back in master controller, thereby realize the inspecting and recording of the failure condition to fan converter power unit, can be targetedly, find in time fault point, and fix a breakdown in time, improve the maintenance efficiency of fan converter power unit driving circuit and power cell.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the driving circuit structure schematic diagram of a kind of fan converter power unit of the embodiment of the present application;
Fig. 2 is the structural representation of the embodiment of the present application parallel processing module;
Fig. 3 is the structural representation that the embodiment of the present application fault judges submodule.
Embodiment
In order to make those skilled in the art person understand better the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Based on the embodiment in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the application's protection.
Refer to Fig. 1, show the structural representation of a kind of fan converter power unit driving circuit of the embodiment of the present application, this drive circuit comprises: fiber interface module 1, the first photoelectric switching circuit 2, driver for isolating 3, parallel processing module 4 and sampling module 5.
Described fiber interface module 1, for communicating between this drive circuit and master controller 6.
Concrete, this fiber interface module 1 offers described parallel processing module 4 for the control signal that comprises pulse control signal and command signal that master controller 6 is produced by this fiber interface module.Meanwhile, the operating state of drive circuit and power cell or fault message are back to described master controller 6.
Concrete, this fiber interface module 1 comprises 3 interfaces, wherein, and 2 downstream interfaces and 1 upstream Interface.
Described downstream interface comprises: pulse control signal interface 110 and command signal interfaces 111, wherein,
Described pulse control signal interface 110 is mainly used in receiving the pulse control signal of master controller generation and offering described the first photoelectric switching circuit 2, through described the first photoelectric switching circuit 2, light signal is converted to the signal of telecommunication and offers described parallel processing module 4;
Described command signal interfaces 111 is mainly used in receiving the command signal of master controller generation and offering described the first photoelectric switching circuit 2, through described the first photoelectric switching circuit, light signal is converted to the signal of telecommunication and offers described parallel processing module 4.
Described upstream Interface is state back transfer interface 112, for the operating state of drive circuit or failure condition are back to described master controller 6, concrete, described parallel processing module 4 is transferred to described the first photoelectric switching circuit 2 by the operating state of described drive circuit and failure condition in real time, after the first photoelectric switching circuit converts electrical signals to light signal, is back to master controller 6 by state back transfer interface 112.
Described the first photoelectric switching circuit 2, offers described parallel processing module 4 for the light signal receiving being converted to the signal of telecommunication, and, the signal of telecommunication receiving is converted to light signal and offers described fiber interface module.
Concrete, described direct voltage Udc can obtain and be transferred to described sampling module 5 by voltage transformer.Described direct current Idc can obtain and be transferred to described analogue collection module 5 by current transformer.The output current of described power switch pipe can obtain and be transferred to sampling module 5 by current transformer.
Concrete, as shown in Figure 1, described power cell comprises three groups of power switch pipes, every group of power switch pipe comprises two power switch pipes of top tube and down tube, described ac output current is I1, I2 and the I3 in Fig. 1, and this output current specifically can obtain and offer after sampling module 5 is converted to digital signal described parallel processing module 4 by current transformer.
This sampling module 5 specifically can adopt A/D sampling A/D chip to realize, and the analog signal collecting can be converted to digital signal, and digital signal is offered to described parallel processing module 4.
Parallel processing module 4, the described control signal receiving for basis, produce the driving pulse that drives power switch pipe in described power cell 7, and according to the described analog quantity information obtaining, reflect the whether switching value information of excess temperature of described power switch pipe, and the fault-signal of described driver for isolating passback, judge fault point and the failure cause of this drive circuit and described power cell.
Concrete, the described power switch pipe whether switching value information exchange of excess temperature is crossed to obtain and is arranged on the state of the temperature relay on described power switch pipe and obtains, as shown in Figure 1, be separately positioned on Trel1, Trel2, the Trel3 of three groups of temperature relays on power switch pipe, in the time that the temperature of power switch pipe exceedes design temperature, corresponding temperature relay adhesive, parallel processing module judges whether excess temperature of described power switch pipe by obtaining the state information of temperature relay.
Driver for isolating 3 offers described power cell 7 after the driving pulse of described parallel processing module generation is isolated to amplification, and meanwhile, the fault-signal that driver for isolating is produced to fault is back to described parallel processing module 4.
Concrete, the effect of described driver for isolating 3 is the safety isolation that realize forceful electric power and light current, to guarantee the safe operation of whole fan converter power unit driving circuit system, its isolation voltage is generally not less than 5kV, its inside comprises power channel and pulse signal passage, and pulse signal passage and power channel are carried out signal conversion by high frequency transformer, wherein, power channel is for providing power supply to rear class power cell, to guarantee the demand of multiple power switch pipes in parallel to power supply; Pulse signal passage is complementary two pulse signals, is respectively used to the top tube and down tube in driving power switching tube module, and the dead band between this two pulse signals is processed by parallel processing module, avoids simultaneously conducting of top tube and down tube and damages.
The fan converter power unit driving circuit that the present embodiment provides, utilize the control signal that parallel processing module sends according to master controller to produce the driving pulse that drives power switch pipe in described power cell, simultaneously, this parallel processing module is according to the electric parameters information of the power cell obtaining, whether power switch pipe the information of excess temperature, or the fault-signal of driver for isolating passback is judged failure cause, the fault-signal of described driver for isolating passback comprises switching tube over current fault, direct current peak voltage transfinites, and the fault message obtaining is back in master controller, thereby realize the inspecting and recording of the failure condition to fan converter power unit, can be targetedly, find in time fault point, and fix a breakdown in time, improve the maintenance efficiency of fan converter power unit driving circuit and power cell.
Preferably, refer to Fig. 1, described drive circuit also comprises power failure judge module 8, debugging interface 9 and the second photoelectric switching circuit 10.
Described power failure judge module 8 is for comparing magnitude of voltage and the reference voltage of the power supply of this drive circuit obtaining, in the time that the magnitude of voltage of described power supply is less than described reference voltage, produce power failure signal, offer described parallel processing module 4.
Described debugging interface 9, in the time that this drive circuit is debugged, communicates with debug controller (not shown).
Concrete, this debugging interface 9 comprises up debugging interface 91 and descending debugging interface 92.
Described up debugging interface 91 is suspected point for intermediate variable or fault that debug process is produced, after being converted to light signal, described the second photoelectric switching circuit 10 sends in real time debug controller to by optical fiber, to find in time the problem existing in debug process.
The debug command that described descending debugging interface 92 issues for receiving debug controller, and light signal is converted to the signal of telecommunication offers described parallel processing module 4 through described the second photoelectric switching circuit 10.
The drive circuit that the present embodiment provides has increased debugging interface, can directly utilize this debugging interface to debug drive circuit, and the intermediate quantity producing in debug process is back to debug controller in real time, thereby make the debug process of fan converter power unit driving circuit extremely convenient.Whether meanwhile, the fan converter power unit driving circuit that the present embodiment provides has increased power failure judge module, can judge in time externally fed power supply and break down, thereby avoid power cell to damage because of power supply.
Refer to Fig. 2, show a kind of structural representation of parallel processing module, this parallel processing module comprises: burst process submodule 410, fault judge submodule 420, analog acquisition submodule 430, switch acquisition submodule 440, communicator module 450, and drives signal to process submodule 460.
Described burst process submodule 410, the described control signal of sending for the master controller transmitting according to described the first photoelectric switching circuit produces pulse signal, and offers driving signal processing submodule 460.Described driving signal is processed submodule 460, for described pulse signal is carried out to Dead Time adjustment processing, produce and drive the driving pulse of most power switch pipes, and this driving signal is processed submodule and the fault-signal of described driver for isolating passback is transferred to described fault is judged submodule 420.
Concrete, the pulse signal of the two-way complementation that this driving signal processing submodule sends described burst process submodule is according to the switching characteristic of power switch pipe, reasonably add Dead Time, avoided the simultaneously conducting of top tube and down tube of power switch pipe and damage; Carry out broadening or spread processing according to the requirement of the driver for isolating pulse signals of rear class again, concrete, requirement according to fan converter main circuit to switching frequency, and the driver for isolating the highest switching frequency that can pass through, carry out broadening or spread processing to received pulse signal.
And, the pulse control signal that master controller issues by fiber interface module 1 sends to burst process submodule 410 through the first photoelectric switching circuit, this burst process submodule 410 is decoded described pulse control signal to process and decoded data are offered to described driving signal and is processed submodule 460, process accordingly by driving signal to process 460, such as, operation is processed in reset, frequency reducing, raising frequency, the selection of normal function/debugging mode etc.
Described analog acquisition submodule 430, for receiving the analog quantity informations such as the electric parameters information of described power cell, and offers described fault and judges submodule 420 and master controller.
Described switch acquisition submodule 440, for gathering the temperature relay of described power switch pipe, the temperature information that obtains described power switch pipe offers described fault and judges submodule 420 and master controller.
Concrete, described analog quantity information and described switching value information exchange are crossed described communicator module 450 and are sent to described the first photoelectric switching circuit, after described the first photoelectric switching circuit converts electrical signals to light signal by Optical Fiber Transmission to described master controller.
Described communicator module 450, for communicating by letter between this drive circuit and master controller.
Described fault judges submodule 420, for the information gathering according to described analog acquisition submodule, the information that switch acquisition submodule gathers, or the fault-signal of described driver for isolating passback, judge failure cause, and be back to described master controller through described communicator module 450, meanwhile, send the control signal of locking pulse to burst process submodule 410, make all pulses of burst process submodule generation all in low level state, make power switch pipe in off state, prevent from burning.
Concrete, fault judges that submodule 420 compares the analog quantitys such as the electric parameters information of the power cell of acquisition and corresponding preset value, in the time that described analog quantity information exceedes corresponding described preset value, judge analog quantity fault, concrete, this analog quantity fault comprises that direct voltage Udc is too high or too low, DC bus short circuit, the output of paralleling switch pipe are uneven; Fault judges that the described switching value information obtaining judged whether excess temperature of described power switch pipe by submodule 420; And fault judges that pulse signal that submodule 420 can also produce according to described burst process submodule judge pulse signal and whether have burst pulse.
The parallel processing module that the present embodiment provides, there is fault and judge submodule, by the fault-signal to the analog quantity information receiving, switching value information and driver for isolating passback, judge this drive circuit and power cell and whether have fault and failure cause, thereby realize the inspecting and recording of the failure condition to fan converter power unit, can find targetedly, in time fault point, and fix a breakdown in time, improve the maintenance efficiency of fan converter power unit driving circuit and power cell.
Concrete, refer to Fig. 3, show described fault and judge the concrete structure schematic diagram of submodule, this fault judges that submodule comprises: analog quantity fault judges that submodule 421, switching value fault judge that submodule 422, pulse fault judge submodule 423, and or gate 424, wherein:
Analog quantity fault judges submodule 421, for the numerical value of the described analog signals receiving is compared with pre-corresponding preset value, if the numerical value of described analog signals exceedes the preset value of described correspondence, judge analog quantity fault, concrete described analog signals is direct voltage Udc, direct current Idc, the output current lamp analog quantity information of power switch pipe.
Switching value fault judges submodule 422, for the described switching value information receiving being judged to whether excess temperature of described power switch pipe, described switching value information is specifically arranged on the operating state of the temperature relay on described power switch pipe, in the time of described power switch pipe excess Temperature, described temperature relay adhesive, thereby produce corresponding switching value information, switching value fault judges submodule according to the described switching value information that collects and then judges whether excess temperature of described power switch pipe.
Described pulse fault judges that submodule 423 is according to the pulse data of the pulse signal of the described burst process submodule transmission receiving, because fan converter main circuit output voltage is sinusoidal voltage, the mild transition of voltage in the front-rear switch cycle, so corresponding pulse data width differs not too large.Therefore, judge according to the pulse data before the current pulse period whether the pulse data of current pulse period meets sequential requirement, if the switch periods of current pulse period is larger with pulse period difference above, judges and deserve prepulse cycle mistake.) pulse fault judges submodule 423 can judge in pulse signal, whether there is burst pulse; when switching device is normally worked in saturation region or cut-off region; if can cause because equivalent resistance is excessive for a long time heating seriously burns in amplification region; and pulse can cause described switching tube in amplification region when narrow; therefore; in the time that pulse fault judges that submodule 423 detects that pulse is less than 3us, judging described pulse signal is burst pulse, thus the safety of protection switch pipe.Described analog quantity fault judges that submodule 421, switching value fault judge that submodule 422, pulse fault judge that the input of the equal Conjunction and disjunction logic functions door 424 of output of submodule 423 is connected, in the time that analog quantity fault judges that submodule 421, switching value fault judge that submodule 422, pulse fault judge that any one submodule in submodule 423 produces fault-signal, fault judge that submodule 420 sends fault-signal and is transferred to by communicator module that master controller 6 record and analysis.
Described parallel processing module in all embodiment in the application can pass through FPGA (Field-Programmable Gate Array, field programmable gate array) to be realized.Described driver for isolating can be realized by high frequency transformer.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is and the difference of other embodiment.
It should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.
The above is only the application's embodiment; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection range.
Claims (9)
1. a fan converter power unit driving circuit, is characterized in that, comprising: fiber interface module, the first photoelectric switching circuit, driver for isolating, parallel processing module, sampling module, wherein:
Described fiber interface module is for communicating between described drive circuit and master controller;
Described fiber interface module comprises: pulse signal interface, command signal interfaces and state back transfer interface, wherein, and described pulse signal interface, the pulse signal producing for receiving described master controller, and offer described the first photoelectric switching circuit; Described command signal interfaces, the command signal producing for receiving described master controller, and offer described the first photoelectric switching circuit; Described state back transfer interface, offers described master controller for the state information and the fault message that receive the next described drive circuit of described the first photoelectric switching circuit transmission;
Described the first photoelectric switching circuit, offers described parallel processing module for the light signal receiving is converted to the signal of telecommunication, and the signal of telecommunication receiving is converted to light signal offers described fiber interface module;
Described sampling module, for gathering the electric parameters information of power cell, this electric parameters information comprises: direct voltage, direct current and the power switch pipe output current of described power cell;
Described parallel processing module, produce for driving the driving pulse of the power switch pipe in described power cell for the control signal sending according to the described master controller receiving, and the fault message of the electric parameters information collecting according to described sampling module, switching value information, driving pulse information or the passback of described driver for isolating judges the failure cause of this drive circuit, and described failure cause is uploaded to described master controller.
2. drive circuit according to claim 1, it is characterized in that, described parallel processing module comprises: burst process submodule, fault judge submodule, analog acquisition submodule, switch acquisition submodule, communicator module, and drives signal to process submodule, wherein:
Described burst process submodule, for producing pulse signal according to the described control signal of described the first photoelectric switching circuit transmission;
Described driving signal is processed submodule, for described pulse signal is carried out to Dead Time adjustment processing, produce and drive the driving pulse of described power switch pipe, and this driving signal is processed submodule and the fault-signal of described driver for isolating passback is back to described fault is judged submodule;
Described analog acquisition submodule, for receiving the electric parameters information of described power cell;
Described switch acquisition submodule, obtains the switching value information of described power switch pipe for gathering the temperature relay operating state of described power switch pipe;
Described fault judges submodule, for the information gathering according to described analog acquisition submodule, the information of switch acquisition submodule, or the fault-signal of described driver for isolating passback, judges failure cause, and is back to described master controller through described communicator module.
3. drive circuit according to claim 2, is characterized in that, described fault judges that submodule comprises: analog quantity fault judges that submodule, switching value fault judge that submodule and pulse fault judge submodule, wherein:
Described analog quantity fault judges submodule, for the electric parameters information and the preset value that collect described in relatively, in the time that described electric parameters information is greater than described preset value, judges analog quantity fault;
Described switching value fault judges submodule, in the time collecting described temperature relay in attracting state, judges described power switch pipe and has excess temperature fault;
Described pulse fault judges submodule, for according to pulse period and the phase place of the pulse signal of described burst process submodule generation, judges pulse fault.
4. drive circuit according to claim 3, is characterized in that, described pulse fault judges that submodule comprises: burst pulse judges that submodule and impulse phase judge submodule, wherein:
Described burst pulse judges submodule, and for the described pulse signal receiving and burst pulse are compared, and described in described pulse signal high level width is not more than when narrow pulse width, judging described pulse signal is burst pulse;
Described impulse phase judges submodule, for the described pulse signal and the reference pulse that receive are compared, in the time that the phase place of described pulse is different with the phase place of described reference pulse, judges described impulse phase mistake.
5. according to the drive circuit described in claim 1-4 any one, it is characterized in that, also comprise: power failure judge module, for magnitude of voltage and the reference voltage of the power supply of this drive circuit obtaining are compared, in the time that the magnitude of voltage of described power supply is less than described reference voltage, produce power failure information.
6. according to the drive circuit described in claim 1-4 any one, it is characterized in that, also comprise: debugging interface and the second photoelectric switching circuit, wherein,
Described debugging interface, in the time debugging this drive circuit, communicates with debug controller;
Described the second photoelectric switching circuit is connected with described debugging interface, offers described parallel processing module for the light signal receiving is converted to the signal of telecommunication, and the signal of telecommunication receiving is converted to light signal offers described debugging interface.
7. drive circuit according to claim 6, is characterized in that, described debugging interface comprises: up debugging interface and descending debugging interface, wherein:
Described descending debugging interface, the debug command of sending for receiving described debug controller;
Described up debugging interface, is back to described debug controller for the information that debug process is produced.
8. according to the drive circuit described in claim 1-4 any one, it is characterized in that, described parallel processing module comprises on-site programmable gate array FPGA.
9. according to the drive circuit described in claim 1-4 any one, it is characterized in that, described driver for isolating is high frequency transformer.
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| CN107069670A (en) * | 2017-03-28 | 2017-08-18 | 中电普瑞科技有限公司 | A kind of H bridges change of current module protection circuit and three-phase H bridge cascade converters |
| CN109802581A (en) * | 2017-11-16 | 2019-05-24 | 核工业西南物理研究院 | A kind of power supply unit driving protection controller |
| CN109256751A (en) * | 2018-11-14 | 2019-01-22 | 苏州绿控新能源科技有限公司 | A kind of electric machine controller drive waveforms monitoring method |
| CN111693763B (en) * | 2020-05-22 | 2023-06-06 | 科华恒盛股份有限公司 | Detection system for power module in modularized electrical equipment |
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| JPH1155954A (en) * | 1997-08-05 | 1999-02-26 | Fuji Electric Co Ltd | Current type power converter circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931240A (en) * | 2010-08-26 | 2010-12-29 | 哈尔滨九洲电气股份有限公司 | Double-PWM vector control double-fed wind power converter |
| CN102136802A (en) * | 2011-03-23 | 2011-07-27 | 艾默生网络能源有限公司 | Current transformer and control device thereof |
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| Title |
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| JP特开平11-55954A 1999.02.26 |
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| CN102497126A (en) | 2012-06-13 |
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