CN204391694U - A kind of general protective circuit for Active Power Filter-APF - Google Patents
A kind of general protective circuit for Active Power Filter-APF Download PDFInfo
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- CN204391694U CN204391694U CN201420717800.0U CN201420717800U CN204391694U CN 204391694 U CN204391694 U CN 204391694U CN 201420717800 U CN201420717800 U CN 201420717800U CN 204391694 U CN204391694 U CN 204391694U
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Abstract
The utility model discloses a kind of general protective circuit for Active Power Filter-APF, it comprises intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit, it is first according to signal HAND, IORun, QD-Switch-Lock formation control signal CONTROL, then according to signal OCA, OCB, OCC forms over-current signal OC, again according to signal ERRA, ERRB, ERRC forms rub-out signal ERR, then synthesized output signal FAULT is combined, use for electrical trip instruction or control, the locking signal LOCK that FAULT and CONTROL comprehensively becomes us to need by fault and protection output circuit, thus first can excise equipment under completing failure condition, the protection process that can normally run of equipment under normal circumstances.The utility model can be widely used in the general protective circuit of Active Power Filter-APF.
Description
Technical field
The utility model relates to a kind of general protective circuit for Active Power Filter-APF.
Background technology
Along with the development of science and technology, the progress of society, electric energy cleans as one, fast, the controllable type energy is easily carried to be widely used in all trades and professions, due to the input of rectification and frequency conversion equipment, bring great convenience to user, simultaneously, also pollution is caused to electrical network, for this reason, Active Power Filter-APF (APF) arises at the historic moment as Modern Electric Power Quality abatement equipment, little by means of its volume, capacity continuously adjustabe, the features such as compensation harmonic tracking velocity is fast, the main flow equipment of power quality controlling industry will be become, wherein, the various protections of Active Power Filter-APF self become a key technology of its stable operation, also be the stable foundation stone of Active Power Filter-APF device security, according to the technical requirement in " People's Republic of China (PRC) machinery industry standard JB/T11067-2011 ", require that abatement equipment should have overcurrent, the self-protection functions such as overvoltage, carrying out these protections is also the necessary condition improving abatement equipment performance, the various operating state of Active Power Filter-APF is made to be in stable state, also be the basis that late-class circuit current harmonics is analyzed, thus, the general protective circuit of Active Power Filter-APF becomes and improves Active Power Filter-APF efficiency, the important content of stability.For this reason, lot of domestic and international scholar proposes different comprehensive method of protections, such as, use integrated protection system, or uses the guard method etc. of multistep treatment, but, considerably increase the cost of the Active Power Filter-APF using this technology like this based on this.
In sum, it is high that the general protective circuit circuit for Active Power Filter-APF in currently available technology also exists cost, and price, is unfavorable for the defects such as marketing.
Utility model content
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, provides a kind of circuit simple and stable, low cost of manufacture, be easy to the general protective circuit for Active Power Filter-APF of the advantages such as realization.
The technical scheme that the utility model adopts is: the utility model comprises intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit, described intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit to each other corresponding adaptation connect and connect outside 5V power supply, and described intelligent control circuit comprises electric capacity I, diverter switch and or door integrated chip I, or door integrated chip II, described FEEDBACK CONTROL and failure indicating circuit comprise and door integrated chip I, with door integrated chip II, with door integrated chip III and resistance I, electricity resistance II, resistance III resistance IV, indicator light I, indicator light II, indicator light III, indicator light IV, described fault and protection output circuit comprise or door integrated chip III, resistance V, resistance VI, resistance VII, indicator light V, transistor I, transistor II, working signal flow process: first according to the signal HAND of intelligent control circuit part, IORun, QD-Switch-Lock formation control signal CONTROL, then according to the OCA of FEEDBACK CONTROL and failure indicating circuit part, OCB, OCC forms over-current signal OC, then according to ERRA, ERRB, ERRC forms rub-out signal ERR, then, through described with door integrated chip III by OC, ERR, OH, OV combines synthesized output signal FAULT, and described signal FAULT is used for electrical trip instruction or controls to use, and completes overcurrent OC, mistake ERR, excess temperature OH, the LED instruction of overvoltage OV, then, the locking signal LOCK that FAULT and CONTROL comprehensively becomes us to need by fault and protection output circuit, thus first can excise equipment under completing failure condition, the protection process that can normally run of equipment under normal circumstances.
Signal OCA, OCB, with first of door integrated chip I described in OCC connects successively, second, 4th pin, signal ERRA, ERRB, ERRC connects the 9th pin that is described and door integrated chip II successively, tenth pin, 12 pin, is describedly connected the first pin that is described and door integrated chip III with the 6th pin of door integrated chip I, is describedly connected crus secunda that is described and door integrated chip III with the octal of door integrated chip II, described the first pin with door integrated chip III, crus secunda, 4th pin, 5th pin connects described indicator light I successively, indicator light II, indicator light III, the negative pole of indicator light IV, described indicator light I, indicator light II, indicator light III, the positive pole of indicator light IV connects external power source 5V, described the 4th pin with door integrated chip III, 5th pin connection signal OH successively, OV, describedly outputs signal FAULT with the 6th pin of door integrated chip III and described in being connected or the first pin of door integrated chip III, one end of described resistance V, the other end of described resistance V connects the base stage of described transistor I, the collector electrode output signal OD F3U of described transistor I, the emitter connecting circuit public terminal GND of described transistor I, one end of described electric capacity I connects the first pin of described diverter switch, external power source 5V, the other end of described electric capacity I connects the tripod of described diverter switch, circuit common GND, the crus secunda of described diverter switch connects the 4th pin that is described or door integrated chip I, 5th pin connection signal IORun of described or door integrated chip I, the 6th pin that is described or door integrated chip I connects the 9th pin that is described or door integrated chip II, tenth pin connection signal QD-Switch-Lock of described or door integrated chip II, octal output signal CONTROL that is described or door integrated chip II also connects crus secunda that is described or door integrated chip III, tripod that is described or door integrated chip III connects one end of described resistance VII, the other end of described resistance VII connects the base stage of described transistor II, the collector electrode of described transistor II outputs signal LOCK and connects the negative pole of described indicator light V, the positive pole of described indicator light V connects one end of described resistance VI, the other end of described resistance VI connects external power source 5V, the emitter connecting circuit public terminal GND of described transistor II.
The beneficial effects of the utility model are: because the utility model comprises intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit, described intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit to each other corresponding adaptation connect and connect outside 5V power supply, and described intelligent control circuit comprises electric capacity I, diverter switch and or door integrated chip I, or door integrated chip II, described FEEDBACK CONTROL and failure indicating circuit comprise and door integrated chip I, with door integrated chip II, with door integrated chip III and resistance I, electricity resistance II, resistance III resistance IV, indicator light I, indicator light II, indicator light III, indicator light IV, described fault and protection output circuit comprise or door integrated chip III, resistance V, resistance VI, resistance VII, indicator light V, transistor I, transistor II, working signal flow process: first according to the signal HAND of intelligent control circuit part, IORun, QD-Switch-Lock formation control signal CONTROL, then according to the OCA of FEEDBACK CONTROL and failure indicating circuit part, OCB, OCC forms over-current signal OC, then according to ERRA, ERRB, ERRC forms rub-out signal ERR, then, through described with door integrated chip III by OC, ERR, OH, OV combines synthesized output signal FAULT, and described signal FAULT is used for electrical trip instruction or controls to use, and completes overcurrent OC, mistake ERR, excess temperature OH, the LED instruction of overvoltage OV, then, the locking signal LOCK that FAULT and CONTROL comprehensively becomes us to need by fault and protection output circuit, thus first can excise equipment under completing failure condition, the protection process that can normally run of equipment under normal circumstances.So the utility model is a kind of circuit simple and stable, low cost of manufacture, is easy to the general protective circuit for Active Power Filter-APF realized.
Accompanying drawing explanation
Fig. 1 is intelligent control circuit schematic diagram of the present utility model;
Fig. 2 is FEEDBACK CONTROL of the present utility model and failure indicating circuit schematic diagram;
Fig. 3 is fault of the present utility model and protection output circuit schematic diagram;
Fig. 4 is implementing circuit principle schematic of the present utility model.
Embodiment
As shown in Figures 1 to 4, the utility model comprises intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit, described intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit to each other corresponding adaptation connect and connect outside 5V power supply, and described intelligent control circuit comprises electric capacity I C1, diverter switch S1 and or door integrated chip I U2B, or door integrated chip II U2C, described FEEDBACK CONTROL and failure indicating circuit comprise and door integrated chip I U1A, with door integrated chip II U1B, with door integrated chip III U3A and resistance I R1, electricity resistance II R2, resistance III R3 resistance IV R4, indicator light I LED1, indicator light II LED2, indicator light III LED3, indicator light IV LED4, described fault and protection output circuit comprise or door integrated chip III U2A, resistance V R5, resistance VI R6, resistance VII R7, indicator light V LED5, transistor I Q1, transistor II Q2, working signal flow process: first according to the signal HAND of intelligent control circuit part, IORun, QD-Switch-Lock formation control signal CONTROL, then according to the OCA of FEEDBACK CONTROL and failure indicating circuit part, OCB, OCC forms over-current signal OC, then according to ERRA, ERRB, ERRC forms rub-out signal ERR, then, through described with door integrated chip III U3A by OC, ERR, OH, OV combines synthesized output signal FAULT, and described signal FAULT is used for electrical trip instruction or controls to use, and completes overcurrent OC, mistake ERR, excess temperature OH, the LED instruction of overvoltage OV, then, the locking signal LOCK that FAULT and CONTROL comprehensively becomes us to need by fault and protection output circuit, thus first can excise equipment under completing failure condition, the protection process that can normally run of equipment under normal circumstances.
Signal OCA, OCB, with first of door integrated chip I U1A described in OCC connects successively, second, 4th pin, signal ERRA, ERRB, ERRC connects the 9th pin that is described and door integrated chip II U1B successively, tenth pin, 12 pin, describedly be connected the first pin that is described and door integrated chip III U3A with the 6th pin of door integrated chip I U1A, describedly be connected crus secunda that is described and door integrated chip III U3A with the octal of door integrated chip II U1B, described the first pin with door integrated chip III U3A, crus secunda, 4th pin, 5th pin connects described indicator light I LED1 successively, indicator light II LED2, indicator light III LED3, the negative pole of indicator light IV LED4, described indicator light I LED1, indicator light II LED2, indicator light III LED3, the positive pole of indicator light IV LED4 connects external power source 5V, described the 4th pin with door integrated chip III U3A, 5th pin connection signal OH successively, OV, describedly output signal FAULT with the 6th pin of door integrated chip III U3A and described in being connected or first pin of door integrated chip III U2A, one end of described resistance V R5, the other end of described resistance V R5 connects the base stage of described transistor I Q1, the collector electrode output signal OD F3U of described transistor I Q1, the emitter connecting circuit public terminal GND of described transistor I Q1, one end of described electric capacity I C1 connects first pin of described diverter switch S1, external power source 5V, the other end of described electric capacity I C1 connects the tripod of described diverter switch S1, circuit common GND, the crus secunda of described diverter switch S1 connects the 4th pin that is described or door integrated chip I U2B, the 5th pin connection signal IORun of described or door integrated chip I U2B, the 6th pin that is described or door integrated chip I U2B connects the 9th pin that is described or door integrated chip II U2C, the tenth pin connection signal QD-Switch-Lock of described or door integrated chip II U2C, octal output signal CONTROL that is described or door integrated chip II U2C also connects crus secunda that is described or door integrated chip III U2A, tripod that is described or door integrated chip III U2A connects one end of described resistance VII R7, the other end of described resistance VII R7 connects the base stage of described transistor II Q2, the collector electrode of described transistor II Q2 outputs signal LOCK and connects the negative pole of described indicator light V LED5, the positive pole of described indicator light V LED5 connects one end of described resistance VI R6, the other end of described resistance VI R6 connects external power source 5V, the emitter connecting circuit public terminal GND of described transistor II Q2.
In the present embodiment, Intelligent control electric route electric capacity C1, diverter switch S1 and or door integrated chip U2B, U2C forms, diverter switch S1 can complete and artificially excise functions of the equipments, when all electic protections are malfunctioning, artificially can excise equipment, processor control signal IORun and manual control signal HAND asks or exports by this circuit, this output signal ask with electrical control signal QD-Switch-Lock again or, form Based Intelligent Control signal CONTROL for late-class circuit, wherein, IORun, HAND, QD-Switch-Lock is all low level normal operation signal, high level is fault-signal,
FEEDBACK CONTROL and failure indicating circuit, this circuit as shown in Figure 2, this circuit by with door integrated chip U1A, U1B, U3A and resistance R1, resistance R2, resistance R3, resistance R4, indicator light (LED1, LED2, LED3, LED4) form, OCA, OCB, OCC is the overcurrent feedback signal of A/B/C three-phase, ERRA, ERRB, ERRC is A/B/C three-phase drive error feedback signal, OH is IGBT excess temperature signal, OV is IGBT overvoltage signal, above-mentioned several signal is all high level normal operation signal, low level is fault-signal, three-phase over-current signal is comprehensively become over-current signal OC by U1A, three-phase drive rub-out signal is comprehensively become drive error signal ERR by U1B, OC, ERR, OH, OV are used for Wrong control by U3A integrated cost level output signal FAULT, FAULT and export and mistake instruction,
Fault and protection output circuit, this circuit as shown in Figure 3, this circuit by or door integrated chip U2A, resistance R5, resistance R6, resistance R7, LED5, Q1, Q2 forms, wherein, R5, Q1 forms feedback error output circuit, the rub-out signal fed back is delivered to electrical input terminal, control for panel instruction or electric equipment, R6, R7, Q2 is for forming locking signal output circuit, according to the rub-out signal FAULT fed back, Based Intelligent Control signal CONTROL carries out locking signal LOCK output, LOCK is low level fault, high level is normal, LED5 is used for locking signal instruction, during normal operation, LED5 goes out, during fault, LED5 is bright.
The every partial circuit definite functions of the utility model; and be easy to realize; with circuit parts such as simple intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuits; complete the integrated protection to Active Power Filter-APF, have that components and parts are few, circuit is simple, good stability, fail safe advantages of higher, with upper type; the utility model is made to be easy to promote; be easy to the marketization, and this circuit is simple and reliable, reduces the cost controlling difficulty and equipment.Can be widely used in the general protective circuit of Active Power Filter-APF.
Claims (2)
1. for a general protective circuit for Active Power Filter-APF, it is characterized in that: it comprises intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit, described intelligent control circuit, FEEDBACK CONTROL and failure indicating circuit, fault and protection output circuit to each other corresponding adaptation connect and connect outside 5V power supply, and described intelligent control circuit comprises electric capacity I (C1), diverter switch (S1) and or door integrated chip I (U2B), or door integrated chip II (U2C), described FEEDBACK CONTROL and failure indicating circuit comprise and door integrated chip I (U1A), with door integrated chip II (U1B), with door integrated chip III (U3A) and resistance I (R1), resistance II (R2), resistance III (R3) resistance IV (R4), indicator light I (LED1), indicator light II (LED2), indicator light III (LED3), indicator light IV (LED4), described fault and protection output circuit comprise or door integrated chip III (U2A), resistance V (R5), resistance VI (R6), resistance VII (R7), indicator light V (LED5), transistor I (Q1), transistor II (Q2).
2. a kind of general protective circuit for Active Power Filter-APF according to claim 1, it is characterized in that: signal OCA, OCB, with first of door integrated chip I (U1A) described in OCC connects successively, second, 4th pin, signal ERRA, ERRB, ERRC connects the 9th pin that is described and door integrated chip II (U1B) successively, tenth pin, 12 pin, describedly be connected the first pin that is described and door integrated chip III (U3A) with the 6th pin of door integrated chip I (U1A), describedly be connected crus secunda that is described and door integrated chip III (U3A) with the octal of door integrated chip II (U1B), described the first pin with door integrated chip III (U3A), crus secunda, 4th pin, 5th pin connects described indicator light I (LED1) successively, indicator light II (LED2), indicator light III (LED3), the negative pole of indicator light IV (LED4), described indicator light I (LED1), indicator light II (LED2), indicator light III (LED3), the positive pole of indicator light IV (LED4) connects external power source 5V, described the 4th pin with door integrated chip III (U3A), 5th pin connection signal OH successively, OV, describedly output signal FAULT with the 6th pin of door integrated chip III (U3A) and described in being connected or the first pin of door integrated chip III (U2A), one end of described resistance V (R5), the other end of described resistance V (R5) connects the base stage of described transistor I (Q1), the collector electrode output signal OD F3U of described transistor I (Q1), the emitter connecting circuit public terminal GND of described transistor I (Q1), one end of described electric capacity I (C1) connects the first pin of described diverter switch (S1), external power source 5V, the other end of described electric capacity I (C1) connects the tripod of described diverter switch (S1), circuit common GND, the crus secunda of described diverter switch (S1) connects the 4th pin that is described or door integrated chip I (U2B), 5th pin connection signal IORun of described or door integrated chip I (U2B), the 6th pin that is described or door integrated chip I (U2B) connects the 9th pin that is described or door integrated chip II (U2C), tenth pin connection signal QD-Switch-Lock of described or door integrated chip II (U2C), octal output signal CONTROL that is described or door integrated chip II (U2C) also connects crus secunda that is described or door integrated chip III (U2A), tripod that is described or door integrated chip III (U2A) connects one end of described resistance VII (R7), the other end of described resistance VII (R7) connects the base stage of described transistor II (Q2), the collector electrode of described transistor II (Q2) outputs signal LOCK and connects the negative pole of described indicator light V (LED5), the positive pole of described indicator light V (LED5) connects one end of described resistance VI (R6), the other end of described resistance VI (R6) connects external power source 5V, the emitter connecting circuit public terminal GND of described transistor II (Q2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420717800.0U CN204391694U (en) | 2014-11-26 | 2014-11-26 | A kind of general protective circuit for Active Power Filter-APF |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420717800.0U CN204391694U (en) | 2014-11-26 | 2014-11-26 | A kind of general protective circuit for Active Power Filter-APF |
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| CN204391694U true CN204391694U (en) | 2015-06-10 |
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| CN201420717800.0U Active CN204391694U (en) | 2014-11-26 | 2014-11-26 | A kind of general protective circuit for Active Power Filter-APF |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810806A (en) * | 2015-03-26 | 2015-07-29 | 国网山东省电力公司青岛供电公司 | Protector for electrical network access equipment |
| CN105490248A (en) * | 2015-11-28 | 2016-04-13 | 国家电网公司 | Comprehensive protection circuit for active power filter (APF) |
-
2014
- 2014-11-26 CN CN201420717800.0U patent/CN204391694U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810806A (en) * | 2015-03-26 | 2015-07-29 | 国网山东省电力公司青岛供电公司 | Protector for electrical network access equipment |
| CN105337409A (en) * | 2015-03-26 | 2016-02-17 | 国网山东省电力公司青岛供电公司 | Protective device used for IEC 61850 conversion device |
| CN105490248A (en) * | 2015-11-28 | 2016-04-13 | 国家电网公司 | Comprehensive protection circuit for active power filter (APF) |
| CN105490248B (en) * | 2015-11-28 | 2018-06-22 | 国家电网公司 | A kind of general protective circuit for APF |
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Effective date of registration: 20170505 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: STATE GRID EAST INNER MONGOLIA ELECTRIC POWER ENERGY-SAVING SERVICE COMPANY LIMITED Patentee after: State Grid Corporation of China Co-patentee after: STATE GRID EAST INNER MONGOLIA ELECTRIC POWER COMPANY ELECTRIC POWER RESEARCH INSTITUTE Co-patentee after: Zhuhai Titans Technology Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: STATE GRID EAST INNER MONGOLIA ELECTRIC POWER COMPANY ELECTRIC POWER RESEARCH INSTITUTE Patentee before: State Grid Corporation of China Co-patentee before: Zhuhai Titans Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
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Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: State Grid Inner Mongolia East Power Integrated Energy Service Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID EASTERN INNER MONGOLIA POWER Co.,Ltd. Patentee after: ZHUHAI TITANS TECHNOLOGY Co.,Ltd. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Patentee before: STATE GRID INNER MONGOLIA EASTERN ELECTRIC POWER ENERGY SAVING SERVICES Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID EASTERN INNER MONGOLIA POWER Co.,Ltd. Patentee before: ZHUHAI TITANS TECHNOLOGY Co.,Ltd. |