CN105490248B - A kind of general protective circuit for APF - Google Patents
A kind of general protective circuit for APF Download PDFInfo
- Publication number
- CN105490248B CN105490248B CN201510841823.1A CN201510841823A CN105490248B CN 105490248 B CN105490248 B CN 105490248B CN 201510841823 A CN201510841823 A CN 201510841823A CN 105490248 B CN105490248 B CN 105490248B
- Authority
- CN
- China
- Prior art keywords
- circuit
- integrated circuit
- signal
- integrated
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 17
- GIKNHHRFLCDOEU-UHFFFAOYSA-N 4-(2-aminopropyl)phenol Chemical compound CC(N)CC1=CC=C(O)C=C1 GIKNHHRFLCDOEU-UHFFFAOYSA-N 0.000 claims description 6
- 230000002463 transducing effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Inverter Devices (AREA)
- Protection Of Static Devices (AREA)
Abstract
The present invention disclose and provides a kind of simple and stable, at low cost, it is easy to accomplish for active filter（APF）General protective circuit.It includes feedback signal receiving circuit（1）, intelligent control circuit（2）, comprehensive computing circuit（3）, failure indicating circuit（4）, equipment off-grid circuit（5）, feedback signal receiving circuit（1）Including temperature sensing circuit（11）, feedback signal circuit（12）, temperature sensing circuit（11）Including tetra- tunnel temperature computing circuit of A, B, C, N（111）, reference circuit（112）, temperature control synthetic circuit（113）Correspondence after feedback signal receiving circuit treated signal synthesis calculation process is input to intelligent control circuit, failure indicating circuit, equipment off-grid circuit by comprehensive computing circuit, intelligent control circuit output control signal, failure indicating circuit exports fault indication signal, equipment off-grid circuit output signal control breaker coil and IGBT drivings.
Description
Technical field
The present invention relates to the general protective circuit of power compensation devices in power electronics control field, more particularly to a kind of use
In active filter（APF）General protective circuit.
Background technology
With the development of science and technology, social progress, electric energy is as a kind of cleaning, quick, the convenient controllable type energy of conveying
All trades and professions are had been widely used for, become the resource that people depend on for existence, due to rectification and the input of frequency conversion equipment, to user
While bringing great convenience, pollution is also caused to power grid, for this purpose, Active Power Filter-APF（APF）As modern electric energy
Quality controlling equipment is come into being, will be by the features such as its small, capacity is continuously adjusted, compensation harmonic tracking velocity is fast
For the mainstream equipment of power quality controlling industry, wherein, general protective circuit becomes the crucial skill of Active Power Filter-APF development
The foundation stone that art and Active Power Filter-APF equipment safety are stablized, in the feelings for various possible mistakes or artificial maloperation occur
Under condition, Active Power Filter-APF from power grid can be cut off and come out, simultaneously turn off IGBT, protection equipment is without damage, protection
Power grid is unaffected, ensures the safety of staff, ensures the safe operation of power grid, and comprehensive protection function is filtered as active electric power
Wave device administers safely an important foundation of power grid, thus, general protective circuit, which becomes, improves Active Power Filter-APF efficiency, steady
Qualitatively important content, good control device comprehensive protection function can just utilize Active Power Filter-APF well.
For this purpose, lot of domestic and international scholar proposes different integrated protection modes, for example, using high-precision conversion chip or
Person still, is considerably increased the cost of the Active Power Filter-APF using the technology, is based in this way using multistage treatment method etc.
This, we have proposed one kind to be used for Active Power Filter-APF（APF）General protective circuit, the circuit have simple and stable, into
This is low, it is easy to accomplish the advantages that.
Invention content
It is to be solved by this invention to ask that it is to overcome the deficiencies of the prior art and provide a kind of simple and stable to carry, it is at low cost, it is easy to
The Active Power Filter-APF general protective circuit of realization.
The technical scheme is that：A kind of general protective circuit for active filter, it connects including feedback signal
Circuit, intelligent control circuit, comprehensive computing circuit, failure indicating circuit, equipment off-grid circuit are received, working power is by external circuit
There is provided, the comprehensive computing circuit respectively with the feedback signal receiving circuit, intelligent control circuit, failure indicating circuit, set
Standby off-grid circuit electrical connection, the feedback signal receiving circuit include temperature sensing circuit, feedback signal circuit, the temperature inspection
Slowdown monitoring circuit includes tetra- tunnel temperature computing circuit of A, B, C, N, reference circuit, temperature control synthetic circuit, the tetra- tunnel temperature fortune of A, B, C, N
Each road input positive terminal connection external temperature transducing signal of circuit is calculated, each road input of tetra- tunnel temperature computing circuit of A, B, C, N is negative
End connects the reference circuit, and each road output terminal of tetra- tunnel temperature computing circuit of A, B, C, N connects the temperature control synthetic circuit
Input terminal, the temperature control synthetic circuit output terminal connect the comprehensive computing circuit by the feedback signal circuit.
The reference circuit includes the resistance of two series connection, one end connection external power supply+5V ends, and other end connection circuit is total to
Ground terminal, described two resistance series connection points export reference signal RT and to connect tetra- tunnel each road of temperature computing circuit of A, B, C, N defeated
Enter negative terminal.
The tetra- tunnel temperature computing circuit Zhong Ge roads circuit structure of A, B, C, N is identical, including an operational integrated circuit
With three resistance, one capacitance, by taking A roads as an example：Including the first operational integrated circuit, first resistor, second resistance, 3rd resistor,
First capacitance, the input positive terminal of the operational integrated circuit connect one end of the first resistor, the first resistor it is another
End connection external temperature transducing signal TA, the input negative terminal connection reference circuit of the operational integrated circuit, described second
For resistor coupled in parallel in the input positive terminal and output terminal of the operational integrated circuit, the output terminal of the operational integrated circuit is also connected with institute
State one end of 3rd resistor, one end of the first capacitance, the other end connection external power supply+5V ends of the 3rd resistor, described the
The other end connection circuit holding altogether of one capacitance, the output terminal of the operational integrated circuit export rear class desired signal OH-A to institute
State temperature control synthetic circuit input terminal.
The temperature control synthetic circuit includes the 5th integrated circuit, the 6th integrated circuit, the 7th integrated circuit, the 8th integrated electricity
Road, the 9th integrated circuit, the tenth integrated circuit, the 11st integrated circuit, the 12nd integrated circuit, the 16th resistance, the 5th electricity
Hold, second switch, the 5th integrated circuit, the 6th integrated circuit, the 7th integrated circuit, the 8th integrated circuit input B ends
Output signal OH-A, OH-B, OH-C, the OH-N being sequentially connected respectively in the tetra- tunnel temperature computing circuit of A, B, C, N, described
Five integrated circuits, the 6th integrated circuit, the 7th integrated circuit, the 8th integrated circuit input A ends be sequentially connected signal HF- respectively
A, HF-B, HF-C, HF-N, the output terminal of the 5th integrated circuit connect the input A ends of the 9th integrated circuit, and described the
Six integrated circuits connect the input B ends of the 9th integrated circuit, the output terminal connection the described tenth of the 7th integrated circuit
The input A ends of integrated circuit, the output terminal of the 8th integrated circuit connects the input B ends of the tenth integrated circuit, described
The output terminal of 9th integrated circuit, the tenth integrated circuit output terminal be sequentially connected the 11st IC input respectively
Enter side a and b, the output terminal of the 11st integrated circuit connects one end of the 5th capacitance and the 12nd integrated electricity
The RST ends on road, the other end connection circuit holding altogether of the 5th capacitance, D ends, the CLK ends of the 12nd integrated circuit connect
Circuit holding altogether is connect, the SET ends of the 12nd integrated circuit connect one end and described second of the 16th resistance respectively
One end of switch, the other end connection circuit holding altogether of the 16th resistance, the other end connection of the second switch are external
Power supply+5V ends, the output terminal of the 12nd integrated circuit connect the comprehensive computing circuit by the feedback signal circuit.
The comprehensive computing circuit includes the 13rd integrated circuit, the 14th integrated circuit, the intelligent control circuit packet
Include first switch, the 6th capacitance, CPU control signal, panel control signals, the failure indicating circuit include the 17th resistance,
18th resistance, the first transistor, the equipment off-grid circuit include the 19th resistance, the 20th resistance, the first transistor, institute
It states comprehensive computing circuit and connects the intelligent control circuit, the failure indicating circuit, the equipment off-grid circuit respectively, it is described
Correspondence after the feedback signal receiving circuit treated signal synthesis calculation process is input to the intelligence by comprehensive computing circuit
Energy control circuit, the failure indicating circuit, the equipment off-grid circuit, the intelligent control circuit output control signal, institute
Failure indicating circuit output fault indication signal is stated, the equipment off-grid circuit output signal control breaker coil and IGBT drive
It is dynamic.
The beneficial effects of the invention are as follows：Since the present invention it includes feedback signal receiving circuit, intelligent control circuit, comprehensive
Computing circuit, failure indicating circuit, equipment off-grid circuit are closed, working power is provided by external circuit, the comprehensive computing circuit
It is electrically connected respectively with the feedback signal receiving circuit, intelligent control circuit, failure indicating circuit, equipment off-grid circuit, it is described
Feedback signal receiving circuit includes temperature sensing circuit, feedback signal circuit, and the temperature sensing circuit includes tetra- tunnel of A, B, C, N
Temperature computing circuit, reference circuit, temperature control synthetic circuit, each road input positive terminal of tetra- tunnel temperature computing circuit of A, B, C, N connect
External temperature transducing signal is connect, each road input negative terminal of tetra- tunnel temperature computing circuit of A, B, C, N connects the reference circuit, institute
It states each road output terminal of tetra- tunnel temperature computing circuit of A, B, C, N and connects the temperature control synthetic circuit input terminal, the temperature control synthesis electricity
Road output terminal connects the comprehensive computing circuit by the feedback signal circuit, and the comprehensive computing circuit includes the 13rd collection
Into circuit, the 14th integrated circuit, the intelligent control circuit includes first switch, the 6th capacitance, CPU controls signal, panel
Signal is controlled, the failure indicating circuit includes the 17th resistance, the 18th resistance, the first transistor, the equipment off-grid electricity
Road includes the 19th resistance, the 20th resistance, the first transistor, and the comprehensive computing circuit connects the Intelligent control electric respectively
Road, the failure indicating circuit, the equipment off-grid circuit, the comprehensive computing circuit will be at the feedback signal receiving circuits
Correspondence is input to the intelligent control circuit, the failure indicating circuit, the equipment after signal synthesis calculation process after reason
Off-grid circuit, the intelligent control circuit output control signal, the failure indicating circuit exports fault indication signal, described to set
Standby off-grid circuit output signal control breaker coil and IGBT drivings.So the present invention is a kind of simple and stable, it is at low cost, easily
In the Active Power Filter-APF general protective circuit of realization.
Description of the drawings
Fig. 1 is the circuit theory schematic diagram of the present invention；
Fig. 2 is the electrical block diagram of the present invention；
Fig. 3 is tetra- tunnel temperature computing circuit of A, B, C, N, 111 structure diagram；
Fig. 4 is 112 structure diagram of reference circuit；
Fig. 5 is 113 structure diagram of temperature control synthetic circuit；
Fig. 6 is 2 structure diagram of intelligent control circuit；
Fig. 7 is comprehensive 3 structure diagram of computing circuit；
Fig. 8 is 4 structure diagram of failure indicating circuit；
Fig. 9 is 5 structure diagram of equipment off-grid circuit.
Specific embodiment
As shown in Figures 1 to 9, the present invention it include feedback signal receiving circuit 1, intelligent control circuit 2, comprehensive operation electricity
Road 3, failure indicating circuit 4, equipment off-grid circuit 5, working power is provided by external circuit, and the comprehensive computing circuit 3 is distinguished
It is electrically connected with the feedback signal receiving circuit 1, intelligent control circuit 2, failure indicating circuit 4, equipment off-grid circuit 5, it is described
Feedback signal receiving circuit 1 include temperature sensing circuit 11, feedback signal circuit 12, the temperature sensing circuit 11 include A, B,
C, tetra- tunnel temperature computing circuits 111 of N, reference circuit 112, temperature control synthetic circuit 113, the tetra- tunnel temperature operation electricity of A, B, C, N
Road 111 each road input positive terminal connection external temperature transducing signal, tetra- tunnel temperature computing circuit of A, B, C, N, 111 each road input
Negative terminal connects the reference circuit 112, and tetra- tunnel temperature computing circuit of A, B, C, N, 111 each road output terminal connects the temperature control
113 input terminal of synthetic circuit, 113 output terminal of temperature control synthetic circuit connect the synthesis by the feedback signal circuit 12
Computing circuit 3.
The reference circuit 112 includes the resistance of two series connection, one end connection external power supply+5V ends, other end connection electricity
Road holding altogether, described two resistance series connection points export reference signal RT and connect the tetra- tunnel temperature computing circuit 111 of A, B, C, N
Each road input negative terminal.
Tetra- tunnel temperature computing circuit of A, B, C, N, the 111 Zhong Ge roads circuit structure is identical, integrates electricity including an operation
One capacitance in road and three resistance, by taking A roads as an example：Including the first operational integrated circuit U1, first resistor R1, second resistance R2,
The input positive terminal connection first resistor of 3rd resistor R3, the first capacitance C1, the operational integrated circuit U1（R1）One end,
The input negative terminal connection of the other end connection external temperature transducing signal TA, the operational integrated circuit U1 of the first resistor R1
The reference circuit 112, the second resistance R2 is connected in parallel on the input positive terminal and output terminal of the operational integrated circuit U1, described
The output terminal of operational integrated circuit U1 be also connected with one end of the 3rd resistor R3, the first capacitance C1 one end, third electricity
Hinder the other end connection external power supply+5V ends of R3, the other end connection circuit holding altogether of the first capacitance C1, the operation collection
Output terminal into circuit U 1 exports rear class desired signal OH-A to 113 input terminal of temperature control synthetic circuit.
The temperature control synthetic circuit 113 include the 5th integrated circuit U5, the 6th integrated circuit U6, the 7th integrated circuit U7,
8th integrated circuit U8, the 9th integrated circuit U9, the tenth integrated circuit U10, the 11st integrated circuit U11, the 12nd integrated electricity
Road U12, the 16th resistance R16, the 5th capacitance C5, second switch S2, the 5th integrated circuit U5, the 6th integrated circuit U6,
7th integrated circuit U7, the 8th integrated circuit U8 input B ends be sequentially connected the tetra- tunnel temperature computing circuit of A, B, C, N respectively
Output signal OH-A, OH-B, OH-C, OH-N in 111, the 5th integrated circuit U5, the 6th integrated circuit U6, the 7th integrate
Circuit U 7, the 8th integrated circuit U8 input A ends be sequentially connected signal HF-A, HF-B, HF-C, HF-N respectively, the 5th collection
Output terminal into circuit U 5 connects the input A ends of the 9th integrated circuit U9, the 6th integrated circuit U6 connections described the
The input B ends of nine integrated circuit U9, the output terminal of the 7th integrated circuit U7 connect the input of the tenth integrated circuit U10
A ends, the output terminal of the 8th integrated circuit U8 connect the input B ends of the tenth integrated circuit U10, the described 9th integrated electricity
The output terminal of road U9, the tenth integrated circuit U10 output terminal be sequentially connected the 11st integrated circuit U11 input respectively
Side a and b, the output terminal of the 11st integrated circuit U11 connect one end of the 5th capacitance C5 and the 12nd collection
Into the RST ends of circuit U 12, the other end connection circuit holding altogether of the 5th capacitance C5, the 12nd integrated circuit U12's
D ends, CLK ends connection circuit holding altogether, the SET ends of the 12nd integrated circuit U12 connect the 16th resistance R16 respectively
One end and the second switch S2 one end, the 16th resistance R16 the other end connection circuit holding altogether, described second
The other end connection external power supply+5V ends of S2 are switched, the output terminal of the 12nd integrated circuit U12 passes through the feedback signal
Circuit 12 connects the comprehensive computing circuit 3.
The comprehensive computing circuit 3 includes the 13rd integrated circuit U13, the 14th integrated circuit U14, the intelligent control
Circuit 2 includes first switch S1, the 6th capacitance C6, CPU control signal, panel control signals, and the failure indicating circuit 4 includes
17th resistance R17, the 18th resistance R18, the first transistor Q1, the equipment off-grid circuit 5 include the 19th resistance R19,
20th resistance R20, the first transistor Q1, the comprehensive computing circuit 3 connect the intelligent control circuit 2, the event respectively
Hinder indicating circuit 4, the equipment off-grid circuit 5, after the comprehensive computing circuit 3 handles the feedback signal receiving circuit 1
Signal synthesis calculation process after corresponding be input to the intelligent control circuit 2, the failure indicating circuit 4, the equipment and take off
Net circuit 5, the output of the intelligent control circuit 2 control signal, the failure indicating circuit 4 exports fault indication signal, described
5 output signal of equipment off-grid circuit controls breaker coil and IGBT drivings.
In the present embodiment, various feedback signals are carried out integrated treatment by feedback signal receiving circuit, and forming late-class circuit can
With signal OC, OV, OH, the E used, manual ringing, CPU controls signal, panel control signals are processed by intelligent control circuit
The signal that late-class circuit can use, comprehensive computing circuit is by above-mentioned signal synthesis calculation process into fault indication signal FAULT
Signal C_NET is controlled with off-grid, then, fault indication signal LED_F is sent to panel and carries out fault alarm by failure indicating circuit,
Signal C_NET is converted into signal LOCK by equipment off-grid circuit, and signal LOCK is sent to respective circuit breakers control terminal and is set
Standby off-grid acts, and whole process is completed obtains integrated protection to Active Power Filter-APF, is the safety fortune of Active Power Filter-APF
Row is ready, so as to ensure the stable operation of power grid.
Reference circuit is made of R4, R5, forms reference voltage signal RT, and signal RT makes for four tunnel temperature computing circuits
With the A roads temperature computing circuit is made of R1, R2, R3, C1 and integrated chip U1, and the A roads temperature computing circuit is by external temperature
Sensor collected temperature voltage signal T_A and reference signal RT is compared, and forms the signal OH_A that late-class circuit needs,
R2 is 1M resistance, for preventing outer signals from interfering OH_A signals, signal OH_A and IGBT module feedback temperature signal HF_A quilts
Temperature control synthetic circuit is sent into, other three tunnels temperature computing circuits are as shown in Fig. 2, wherein, and T_B is B phase temperature voltage signals, T_C
For C phase temperature voltage signals, T_N is N phase temperature voltage signals, signal OH_B, OH_C, OH_N and feedback temperature signal HF_B,
HF_C, HF_N are respectively fed to temperature integrated circuit.
Temperature control synthetic circuit is made of U5, U6, U7, U8, U9, U10, U11, U12, S2, R16, C5, during which will be above-mentioned
Signal OH_A, OH_B, OH_C, OH_N and signal HF_A, HF_B, HF_C, HF_N carry out integrated treatment, formed late-class circuit
The temperature feedback signal OH needed, wherein, signal OHFA, OHFB, OHFC, OHFN, HAB, HCN, OH_1 are temperature control synthetic circuit
Inter-process signal.
Feedback signal circuit, signal OC, OV, the E for mainly feeding back peripheral circuit, gives late-class circuit, wherein, OC
For current feedback signal, E is IGBT drive control feedback signals, and OV is over-pressed signal.
Intelligent control circuit, the circuit is by manual lockout circuit and CPU control signals IC_PWM_C, panel control signals M_
C form, wherein, manual lockout circuit is made of S1, C1, for commissioning device in the case of, block IGBT manually, C1 is used for
Manual switch disappears the effect of trembling, and it is the feedback signal that equipment CPU controls IGBT to form manual control signal H_C, IC_PWM_C, is used
Whether normal in the control signal that monitoring CPU is sent out, whether M_C is panel control signals, come into operation for control device, should
Signal H_C, IC_PWM_C, M_C are processed into the signal that late-class circuit can use by intelligent control circuit.
Comprehensive computing circuit, the circuit are made of integrated chip U13, U14, and U13 is for combination current feedback signal OC, electricity
Feedback signal OV, IGBT temperature signal OH, IGBT drive control feedback signal E is pressed, by the comprehensive composite signal of OC, OV, OH, E
FAULT, FAULT for equipment fault indicate and late-class circuit synthesis use, U14 be used for by signal H_C, IC_PWM_C, M_C,
FAULT is integrated into the signal C_NET for judging whether off-grid, wherein, U13 is integrated chip for integrated chip SN74HC20D, U14
SN74HC21D。
Failure indicating circuit, the circuit are made of R17, R18, Q1, wherein, R17 be 10K resistance, R18 be 1K resistance, Q1
For NPN triode, which is processed into signal LED_F by higher level's fault-signal FAULT, and by signal LED_F be sent to panel into
Row indicating fault.
Equipment off-grid circuit, electricity routing resistance R19, resistance R20, Q2 composition, wherein, R20 be 1K resistance, R19 10K
Resistance, Q2 are NPN triode, which is processed into signal LOCK by the signal C_NET in foregoing circuit, and signal LOCK is used to control
Breaker coil processed, synchronous signal LOCK are used to that the driving of IGBT to be controlled to export.
Claims (4)
1. a kind of general protective circuit for APF, it is characterised in that：It includes feedback signal receiving circuit（1）, intelligent control
Circuit（2）, comprehensive computing circuit（3）, failure indicating circuit（4）, equipment off-grid circuit（5）, working power carries by external circuit
For the comprehensive computing circuit（3）Respectively with the feedback signal receiving circuit（1）, intelligent control circuit（2）, indicating fault
Circuit（4）, equipment off-grid circuit（5）Electrical connection, the feedback signal receiving circuit（1）Including temperature sensing circuit（11）, it is anti-
Feedback signal circuit（12）, the temperature sensing circuit（11）Including tetra- tunnel temperature computing circuit of A, B, C, N（111）, reference circuit
（112）, temperature control synthetic circuit（113）, the tetra- tunnel temperature computing circuit of A, B, C, N（111）Each road input positive terminal connection is external
Temperature sensor signal, the tetra- tunnel temperature computing circuit of A, B, C, N（111）Each road input negative terminal connects the reference circuit
（112）, the tetra- tunnel temperature computing circuit of A, B, C, N（111）Each road output terminal connects the temperature control synthetic circuit（113）Input
End, the temperature control synthetic circuit（113）Output terminal passes through the feedback signal circuit（12）Connect the comprehensive computing circuit
（3）；The temperature control synthetic circuit（113）Including the 5th integrated circuit（U5）, the 6th integrated circuit（U6）, the 7th integrated circuit
（U7）, the 8th integrated circuit（U8）, the 9th integrated circuit（U9）, the tenth integrated circuit（U10）, the 11st integrated circuit（U11）、
12nd integrated circuit（U12）, the 16th resistance（R16）, the 5th capacitance（C5）, second switch（S2）, the described 5th integrated electricity
Road（U5）, the 6th integrated circuit（U6）, the 7th integrated circuit（U7）, the 8th integrated circuit（U8）Input B ends connect successively respectively
Connect the tetra- tunnel temperature computing circuit of A, B, C, N（111）In output signal OH-A, OH-B, OH-C, OH-N, the 5th collection
Into circuit（U5）, the 6th integrated circuit（U6）, the 7th integrated circuit（U7）, the 8th integrated circuit（U8）Input A ends respectively according to
Secondary connection temperature sensor signal HF-A, HF-B, HF-C, HF-N, the 5th integrated circuit（U5）Output terminal connection described the
Nine integrated circuits（U9）Input A ends, the 6th integrated circuit（U6）Connect the 9th integrated circuit（U9）Input B
End, the 7th integrated circuit（U7）Output terminal connect the tenth integrated circuit（U10）Input A ends, it is described 8th collection
Into circuit（U8）Output terminal connect the tenth integrated circuit（U10）Input B ends, the 9th integrated circuit（U9）It is defeated
Outlet, the tenth integrated circuit（U10）Output terminal be sequentially connected the 11st integrated circuit respectively（U11）Input A ends
With B ends, the 11st integrated circuit（U11）Output terminal connect the 5th capacitance（C5）One end and it is described 12nd collection
Into circuit（U12）RST ends, the 5th capacitance（C5）The other end connection circuit holding altogether, the 12nd integrated circuit
（U12）D ends, CLK ends connection circuit holding altogether, the 12nd integrated circuit（U12）SET ends connect the described tenth respectively
Six resistance（R16）One end and the second switch（S2）One end, the 16th resistance（R16）The other end connection circuit
Holding altogether, the second switch（S2）Other end connection external power supply+5V ends, the 12nd integrated circuit（U12）It is defeated
Outlet passes through the feedback signal circuit（12）Connect the comprehensive computing circuit（3）.
2. a kind of general protective circuit for APF according to claim 1, it is characterised in that：The reference circuit
（112）Include the resistance of two series connection, one end connection external power supply+5V ends, other end connection circuit holding altogether, two electricity
The series connection point output reference signal RT of resistance simultaneously connects the tetra- tunnel temperature computing circuit of A, B, C, N（111）Each road input negative terminal.
3. a kind of general protective circuit for APF according to claim 2, it is characterised in that：Tetra- tunnel of A, B, C, N
Temperature computing circuit（111）Zhong Ge roads circuit structure is identical, including one capacitance of an operational integrated circuit and three resistance,
By taking A roads as an example：Including the first operational integrated circuit（U1）, first resistor（R1）, second resistance（R2）, 3rd resistor（R3）,
One capacitance（C1）, the operational integrated circuit（U1）Input positive terminal connect the first resistor（R1）One end, described first
Resistance（R1）The other end connection external temperature transducing signal TA, the operational integrated circuit（U1）Input negative terminal connection described in
Reference circuit（112）, the second resistance（R2）It is connected in parallel on the operational integrated circuit（U1）Input positive terminal and output terminal, institute
State operational integrated circuit（U1）Output terminal be also connected with the 3rd resistor（R3）One end, the first capacitance（C1）One end, institute
State 3rd resistor（R3）Other end connection external power supply+5V ends, first capacitance（C1）The other end connection circuit altogether
End, the operational integrated circuit（U1）Output terminal export rear class desired signal OH-A to the temperature control synthetic circuit（113）It is defeated
Enter end.
4. a kind of general protective circuit for APF according to claim 1, it is characterised in that：The comprehensive operation electricity
Road（3）Including the 13rd integrated circuit（U13）, the 14th integrated circuit（U14）, the intelligent control circuit（2）Including first
Switch（S1）, the 6th capacitance（C6）, CPU control signal, panel control signals, the failure indicating circuit（4）Including the 17th
Resistance（R17）, the 18th resistance（R18）, the first transistor（Q1）, the equipment off-grid circuit（5）Including the 19th resistance
（R19）, the 20th resistance（R20）, the first transistor（Q1）, the comprehensive computing circuit（3）The intelligent control is connected respectively
Circuit（2）, the failure indicating circuit（4）, the equipment off-grid circuit（5）, the comprehensive computing circuit（3）By the feedback
Signal receiving circuit（1）Correspondence is input to the intelligent control circuit after signal synthesis calculation process that treated（2）, it is described therefore
Hinder indicating circuit（4）, the equipment off-grid circuit（5）, the intelligent control circuit（2）Output control signal, the failure refer to
Show circuit（4）Export fault indication signal, the equipment off-grid circuit（5）Output signal controls breaker coil and IGBT to drive
It is dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841823.1A CN105490248B (en) | 2015-11-28 | 2015-11-28 | A kind of general protective circuit for APF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841823.1A CN105490248B (en) | 2015-11-28 | 2015-11-28 | A kind of general protective circuit for APF |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105490248A CN105490248A (en) | 2016-04-13 |
| CN105490248B true CN105490248B (en) | 2018-06-22 |
Family
ID=55677066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510841823.1A Expired - Fee Related CN105490248B (en) | 2015-11-28 | 2015-11-28 | A kind of general protective circuit for APF |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105490248B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956686U (en) * | 2011-03-01 | 2011-08-31 | 宁波中睿电气有限公司 | Active power filtering device |
| CN202930910U (en) * | 2012-12-13 | 2013-05-08 | 广西星宇智能电气有限公司 | Multifunctional protection module used for active power filter |
| CN203911558U (en) * | 2014-05-05 | 2014-10-29 | 国家电网公司 | Off-board conductive direct-current electric vehicle charger having APF function |
| CN204389062U (en) * | 2014-11-21 | 2015-06-10 | 国家电网公司 | A kind of IGBT for Active Power Filter-APF saves warm sample circuit |
| CN204391694U (en) * | 2014-11-26 | 2015-06-10 | 国家电网公司 | A kind of general protective circuit for Active Power Filter-APF |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5360002B2 (en) * | 2010-06-28 | 2013-12-04 | 富士電機株式会社 | Semiconductor device driving apparatus |
-
2015
- 2015-11-28 CN CN201510841823.1A patent/CN105490248B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956686U (en) * | 2011-03-01 | 2011-08-31 | 宁波中睿电气有限公司 | Active power filtering device |
| CN202930910U (en) * | 2012-12-13 | 2013-05-08 | 广西星宇智能电气有限公司 | Multifunctional protection module used for active power filter |
| CN203911558U (en) * | 2014-05-05 | 2014-10-29 | 国家电网公司 | Off-board conductive direct-current electric vehicle charger having APF function |
| CN204389062U (en) * | 2014-11-21 | 2015-06-10 | 国家电网公司 | A kind of IGBT for Active Power Filter-APF saves warm sample circuit |
| CN204391694U (en) * | 2014-11-26 | 2015-06-10 | 国家电网公司 | A kind of general protective circuit for Active Power Filter-APF |
Non-Patent Citations (2)
| Title |
|---|
| 一种并联型有源电力滤波器的新型控制方法;李达义等;《电力***自动化》;20140810;第38卷(第15期);正文第112-123页 * |
| 南方电网直流输电工程的交流滤波器保护;朱韬析;《电力建设》;20110131;第32卷(第1期);正文第45-48页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105490248A (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201765311U (en) | Battery monitoring device | |
| CN104549979B (en) | Based on phase-shifting full-bridge high-power ultrasound generator | |
| CN207398834U (en) | A kind of series voltage compensation device based on Power Electronic Technique | |
| CN105301478B (en) | A kind of detection means and detection method of 3.7V batteries list string protection board | |
| CN105305496B (en) | The isolated form photovoltaic combining inverter and its method of work of a kind of pair of branch structure | |
| CN106124956A (en) | A kind of digitized diode forward current surge assay device | |
| WO2016019667A1 (en) | Charging circuit and system for rechargeable battery | |
| CN107860799A (en) | TDS detection means and purifying kettle | |
| RU2012114573A (en) | EARTH CIRCUIT CONTROL DEVICE IN AC CHAIN AND POWER SUPPLY WITH SUCH EARTH CIRCUIT CONTROL | |
| CN205490215U (en) | Power conversion device | |
| CN210246626U (en) | High-compatibility one-driving-two parallel inverter induction heating system | |
| CN206832896U (en) | A kind of three-phase power input phase-loss detection circuit | |
| CN105490248B (en) | A kind of general protective circuit for APF | |
| CN206401966U (en) | Intelligent accumulator charger | |
| CN104181383B (en) | A kind of three-phase power grid voltage sync detection circuit | |
| CN204925233U (en) | Intelligence current -voltage table | |
| CN206946244U (en) | A kind of passive filtration unit with fault electric arc detection function | |
| CN103353566B (en) | Battery for mimic channel equipment testing circuit in place | |
| CN205753350U (en) | Voltage protection relay | |
| CN101777756B (en) | Over-current protection circuit for insulated gate bipolar transistor | |
| CN204391694U (en) | A kind of general protective circuit for Active Power Filter-APF | |
| CN202651632U (en) | Novel intelligent photovoltaic conjunction box | |
| CN103825446B (en) | AC-DC converter have bridge power factor controller | |
| CN205610330U (en) | Intelligent fire control emergency power source | |
| CN205786217U (en) | The drive circuit of a kind of personal sampler and personal sampler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20181128 |