CN206041506U - Medium and small power factor compensation of electric substation controller of digit type - Google Patents

Medium and small power factor compensation of electric substation controller of digit type Download PDF

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Publication number
CN206041506U
CN206041506U CN201621050444.7U CN201621050444U CN206041506U CN 206041506 U CN206041506 U CN 206041506U CN 201621050444 U CN201621050444 U CN 201621050444U CN 206041506 U CN206041506 U CN 206041506U
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China
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pins
resistance
parallel
connect
chip
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CN201621050444.7U
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Chinese (zh)
Inventor
闫大新
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黑龙江科技大学
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Publication of CN206041506U publication Critical patent/CN206041506U/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation

Abstract

Medium and small power factor compensation of electric substation controller of digit type. The utility model relates to a medium and small power factor compensation of electric substation controller of digit type. Voltage detector was connected simultaneously to the transformer, auxiliary electrical power source and voltage signal cross the zero comparator, cross voltage detector and connect DSP microprocessor, voltage signal crosses the zero comparator and connects phase locking and 50 hertz of frequency doubling circuits and logical gate circuit simultaneously, the A line of transformer secondary generating line passes through current detection winding connection current detection unit, the current detection ware was connected simultaneously to the current detection unit and the zero comparator is crossed to the current signal, DSP microprocessor is connected to the current detection ware, the current signal is crossed the zero comparator and is connected logical gate circuit, phase locking and 50 hertz of doubling of frequency circuit connection logic gate circuit, logic gate circuit connection DSP microprocessor, DSP microprocessor connects display circuit and drive circuit simultaneously. The utility model is used for power factor compensation.

Description

Small transformer substation power factor compensating controller in numeric type
Technical field:
This utility model is related to small transformer substation power factor compensating controller in a kind of numeric type.
Background technology:
Electric substation's power factor compensation technology is a mature technology, and its product was just come into operation early in last century, Through development for many years, product is constantly updating the replacement, and this product is on the basis of with reference to early stage product, using hyundai electronicses Technology and microprocessor technology research design are formed, TMS320F28027 microprocessor of the master chip using the newest production of TI companies Device, digitized degree are high, signals collecting from the secondary side bus voltage of electric substation and electric current, by digitized and lock phase processor, The phase contrast of signal incoming DSP microprocessor judges voltage and currents, controller switching capacitor box is determined according to phase contrast Compensating electric capacity, so as to compensate to the idle of electric substation.
The content of the invention:
The purpose of this utility model is to provide small transformer substation power factor compensating controller in a kind of numeric type, is to realize The adjust automatically of electric substation's electric power system power factor and raising, in the local scope of electric power system, if the perception such as motor When loading more, the power factor of electrical network is relatively low, and capacitive load need to be added to be compensated by, can be according to the height of power factor of electric network The low automatic switching for realizing electric capacity.
Above-mentioned purpose is realized by following technical scheme:
Small transformer substation power factor compensating controller in a kind of numeric type, its composition include:Transformer secondary bus, it is described Transformer secondary bus A lines and N lines difference connection transformer, described transformator connects overvoltage detector, auxiliary simultaneously Help power supply and voltage signal zero-crossing comparator, described overvoltage detector connection DSP microprocessors, described voltage signal mistake Zero comparator connects lock mutually and 50 hertz of frequency multiplier circuits and Logical gate circuit simultaneously,
The A lines of described transformer secondary bus connect current detecting unit, described electric current by electric current detecting coil Detector unit connects over-current detector and current signal zero-crossing comparator, the described micro- places of amperometric connection DSP simultaneously Reason device, described current signal zero-crossing comparator connection Logical gate circuit,
Described lock phase and 50 hertz of frequency multiplier circuits connect Logical gate circuit, described Logical gate circuit connection DSP Microprocessor, described DSP microprocessors connect display circuit and drive circuit, described drive circuit connection compensation electricity simultaneously Appearance group.
Small transformer substation power factor compensating controller in described numeric type, described transformator is by transformer secondary bus Near+the 5V of voltage, described+5V is voltage end VCC5, No. 14 pins of described voltage end VCC5 parallel connection d type flip flop U4 and No. 16 pins of programmable counter U3, No. 13 pins, No. 16 of No. 2 pins, one end of resistance R2 and binary-coded decimal enumerator U2 draw No. 16 pins of foot, No. 10 pins, No. 2 pins and lock phase voltage-frequency U1;
No. 1 pin of described d type flip flop U4 connects No. 11 pins of d type flip flop U4, No. 2 of described d type flip flop U4 Pin connects No. 5 pins of d type flip flop U4, and No. 12 of No. 3 pins in parallel programmable counter U3 of described d type flip flop U4 are drawn Foot and No. 3 pins, No. 9 pins of described d type flip flop U4 connect No. 12 pins of d type flip flop U4;
No. 8 pins of No. 7 pins in parallel d type flip flop U4 of described d type flip flop U4, one end of resistance R5, resistance R4 One end, No. 10 pins of programmable counter U3, No. 8 pins of programmable counter U3, the other end of resistance R2, resistance R3 One end, No. 9 pins of binary-coded decimal enumerator U2, No. 8 pins of binary-coded decimal enumerator U2, No. 7 pins, the electricity of binary-coded decimal enumerator U2 No. 8 pins of the other end and lock phase voltage-frequency U1 of resistance R1;
No. 3 pins of No. 13 pin connection lock phase voltage-frequency U1 of described d type flip flop U4;
The other end of described resistance R4 connects No. 11 pins of programmable counter U3, the other end of described resistance R5 No. 14 pins of connection programmable counter U3, the other end of described resistance R3 connect No. 5 pins of programmable counter U3, No. 6 pins of described programmable counter U3 connect No. 6 pins of binary-coded decimal enumerator U2;
No. 4 pins of No. 1 pins in parallel lock phase voltage-frequency U1 of binary-coded decimal enumerator U2, No. 13 pins of NAND gate U7;
No. 11 pins of the other end connection lock phase voltage-frequency U1 of described resistance R1, No. 6 of described lock phase voltage-frequency U1 draw Connect electric capacity C14, No. 14 pins in parallel XOR gate U6 of described lock phase voltage-frequency U1 between No. 7 pins of foot and lock phase voltage-frequency U1 No. 1 pin and voltage zero-crossing comparator U5C outfan;
Connect between the outfan of described voltage zero-crossing comparator U5C and the negative input end of voltage zero-crossing comparator U5C Diode D1, the positive input terminal ground connection of described voltage zero-crossing comparator U5C, described voltage zero-crossing comparator U5C it is negative defeated Enter end and be also connected with one end of resistance R7, one end of other end parallel resistance R6 of described resistance R7, one end of electric capacity C1, voltage One end of detection coil T1 and one end of diode D4, other end shunt voltage detection coil T1 of described electric capacity C1 it is another End and one end of resistance R8, the other end of R8 connect one end of electric capacity C2, and the other end of described electric capacity C2 connects resistance R6's The other end;
One end of other end parallel resistance R15 of described diode D4 and one end of electric capacity C6, described resistance R15's The negative input end of one end of other end shunt capacitance C7, one end of resistance R18 and overvoltage protection comparator U5B, described electricity It is grounded after the other end parallel connection of the other end, the other end of electric capacity C7 and resistance R18 that hold C6, described overvoltage protection comparator Connect diode D5, described overvoltage protection ratio between the outfan of the negative input end and overvoltage protection comparator U5B of U5B Positive input terminal compared with device U5B connects one end of variable resistance R17, after the other end of described variable resistance R17 connects resistance R16 The 3rd end ground connection of connection voltage input end VCC1, described variable resistance R17, described overvoltage protection comparator U5B's Outfan connects No. 7 pins of buffer U8;
No. 2 pins ground connection of described XOR gate U6, No. 3 pins of described XOR gate U6 and No. 8 pins it is in parallel with No. 3 pins of No. 2 pins and buffer U8 of not gate U7, No. 9 pins of described XOR gate U6 connect No. 6 pin levels 11 and draw Foot, No. 5 pins of described XOR gate U6 connect voltage input end VCC2, and No. 4 pins connections of described XOR gate U6 are buffered No. 11 pins of device U8, No. 10 pins of described XOR gate U6 connect No. 1 pin of NAND gate U7;
No. 12 pin ground connection of described XOR gate U6, No. 13 pin connection current over-zeros of described XOR gate U6 are compared The outfan of device U5D, the negative input end of the outfan and current over-zero comparator U5D of described current over-zero comparator U5D it Between connect diode D2, the negative input end of described current over-zero comparator U5D connects one end of resistance R9, described resistance R9 One end of other end parallel diode D6, one end of electric capacity C3, one end of one end of resistance R10 and electric current detecting coil T2, The other end of the other end shunt capacitance C3 of described electric current detecting coil T2, the other end of resistance R10 and current over-zero compare The positive input terminal of device U5D;
One end and one end of resistance R11 of the other end shunt capacitance C4 of described diode D6, described resistance R11's The negative input end of one end of other end shunt capacitance C5, one end of resistance R12 and overcurrent protection comparator U5A, described electricity It is grounded after the other end parallel connection for holding the other end of C4, the other end of electric capacity C5, resistance R12, described current protection comparator U5A Positive input terminal connect one end of variable resistance R14, connection electricity after the other end connection resistance R13 of described variable resistance R14 The 3rd end ground connection of pressure input VCC4, described variable resistance R14, the outfan of described overcurrent protection comparator U5A No. 9 pins of connection buffer U8;
No. 5 pins and No. 6 pins of No. 3 pin connection NAND gate U7 of described NAND gate U7, described NAND gate U7 No. 4 pins connect No. 12 pins of NAND gate U7, No. 9 of No. 11 pins connection NAND gate U7 of described NAND gate U7 are drawn Foot, No. 8 pins of described NAND gate U7 connect voltage input end VCC3, and No. 10 pins connections of described NAND gate U7 are buffered No. 14 pins of device U8;
No. 2 pins of described buffer U8 connect No. 5 pins of buffer U8, No. 4 pins of described buffer U8 No. 16 pins of connection dsp chip U10, No. 15 pins of described buffer U8 connect No. 25 pins of dsp chip U10, institute No. 12 pins of the buffer U8 for stating connect No. 15 pins of dsp chip U10, and No. 6 pins of described buffer U8 connect DSP No. 27 pins of chip U10, No. 10 pins of described buffer U8 connect No. 26 pins of dsp chip U10.
Small transformer substation power factor compensating controller in described numeric type, No. 2 pins of described dsp chip U10 connect It is grounded after connecting resistance R21,
One end and one end of reset key AF of No. 3 pins in parallel resistance R20 of described dsp chip U10, described resistance The other end connection voltage end VDD1 of R20, the other end of described reset key AF are grounded, described reset key AF shunt capacitance C8,
One end of No. 4 pins in parallel resistance R33-8 of described dsp chip U10 and one end of switch A8,
One end of No. 5 pins in parallel resistance R33-7 of described dsp chip U10 and one end of switch A7,
One end of No. 6 pins in parallel resistance R33-6 of described dsp chip U10 and one end of switch A6,
One end of No. 7 pins in parallel resistance R33-5 of described dsp chip U10 and one end of switch A5,
One end of No. 8 pins in parallel resistance R33-4 of described dsp chip U10 and one end of switch A4,
One end of No. 9 pins in parallel resistance R33-3 of described dsp chip U10 and one end of switch A3,
One end of No. 10 pins in parallel resistance R33-2 of described dsp chip U10 and one end of switch A2,
One end of No. 13 pins in parallel resistance R33-1 of described dsp chip U10 and one end of switch A1,
One end of No. 14 pins in parallel resistance R33-0 of described dsp chip U10 and one end of switch AK,
The other end of described resistance R33-8, the other end of resistance R33-7, the other end of resistance R33-6, resistance R33-5 The other end, the other end of resistance R33-4, the other end of resistance R33-3, the other end of resistance R33-2, resistance R33-1 it is another Connect voltage end VDD2 after the other end parallel connection of one end and resistance R33-0,
It is the other end of described switch A8, the other end of described switch A7, the other end of described switch A6, described The switch other end of A5, the other end of described switch A4, the other end of described switch A3, described switch A2 it is another It is grounded after the other end parallel connection at end, the other end of described switch A1 and described switch AK;
One end of No. 11 pins in parallel voltage end VDD3 and electric capacity C9 of described dsp chip U10,
The other end of No. 12 pins in parallel electric capacity C9 of described dsp chip U10 and ground connection,
One end of No. 19 pin connecting luminous diode D15 of described dsp chip U10,
No. 20 pins of described dsp chip U10 connect one end of resistance R32-4,
No. 21 pins of described dsp chip U10 connect one end of resistance R32-3,
No. 22 pins of described dsp chip U10 connect one end of resistance R32-2,
No. 23 pins of described dsp chip U10 connect one end of resistance R32-1,
The other end of described resistance R32-1, the other end of resistance R32-2, the other end of resistance R32-3 and resistance R32- One end of one end, voltage end VDD4 and resistance R31 of 4 equal parallel resistance R30 of the other end, the other end of described resistance R30 The other end of connecting luminous diode D15, the other end of described resistance R31 are grounded after connecting diode D14;
No. 15 pins of No. 31 pin connection CMOS chip U11 of described dsp chip U10 and one end of resistance R29,
No. 32 pins of described dsp chip U10 connect one end of electric capacity C10, and the other end of described electric capacity C10 is in parallel No. 33 pins of dsp chip U10, No. 34 pins of dsp chip U10 and one end of electric capacity C11,
No. 35 pins in parallel voltage end VDD5 of described dsp chip U10, the other end of electric capacity C11, the one of resistance R28 No. 16 pins of end, the other end of resistance R29, one end of electric capacity C13 and CMOS chip U11, the other end of described electric capacity C13 Ground connection,
No. 14 pins and the other end of resistance R28 of No. 36 pins in parallel CMOS chip U11 of described dsp chip U10,
No. 11 pins of described CMOS chip U11 connect No. 6 pins of liquid crystal display U9, described CMOS chip No. 10 pins of U11 connect No. 5 pins of liquid crystal display U9, No. 9 pin connection liquid crystal display U9's of CMOS chip U11 No. 4 pins,
No. 1 pin connection resistance R34 connection voltage VDD6 end of described CMOS chip U11, described CMOS chip U11 No. 2 pins in parallel CMOS chip U11 No. 3 pins after be grounded, No. 4 pins connection liquid crystals of described CMOS chip U11 Show No. 11 pins of device U9, No. 5 pins of described CMOS chip U11 connect No. 12 pins of liquid crystal display U9, described No. 6 pins of CMOS chip U11 connect No. 13 pins of liquid crystal display U9, and No. 7 pins of described CMOS chip U11 connect No. 14 pins of liquid crystal display U9, No. 8 pins ground connection of described CMOS chip U11, the 15 of described liquid crystal display U9 No. 3 pins of number pin connection voltage end VCC6, described liquid crystal display U9 connect the 3rd end of resistance R19, described liquid One end of No. 2 pins in parallel voltage end VDD7 and resistance R19 of crystal display U9, No. 1 pin of described liquid crystal display U9 The other end of parallel resistance R19 and ground connection;
One end and one end of resistance R27-1 of No. 37 pins in parallel resistance R26-1 of described dsp chip U10, it is described The other end of resistance R26-1 connects No. 1 pin of photoelectrical coupler U15, and the other end of described resistance R27-1 connects diode One end of D6,
One end and one end of resistance R27-2 of No. 38 pin connection parallel resistances R26-2 of described dsp chip U10, institute The other end of the resistance R26-2 for stating connects No. 3 pins of photoelectrical coupler U15, and the other end of described resistance R27-2 connects two One end of pole pipe D7,
One end and one end of resistance R27-3 of No. 39 pin connection parallel resistances R26-3 of described dsp chip U10, institute The other end of the resistance R26-3 for stating connects No. 5 pins of photoelectrical coupler U15, and the other end of described resistance R27-3 connects two One end of pole pipe D8,
One end and one end of resistance R27-4 of No. 40 pins in parallel resistance R26-4 of described dsp chip U10, it is described The other end of resistance R26-4 connects No. 7 pins of photoelectrical coupler U15, and the other end of described resistance R27-4 connects diode One end of D9,
The other end of described diode D6, the other end of diode D7, the other end of diode D8 and diode D9's It is grounded after other end parallel connection,
No. 1 pin and resistance R22-1 of No. 15 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 One end, No. 3 pins and resistance R22-2 of No. 13 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 One end, the one of No. 5 pins and resistance R22-3 of No. 11 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 End, No. 7 pins of No. 9 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 and one end of resistance R22-4,
No. 16 pins of described Darlington transistor chip U12 connect one end of relay J1, described Darlington transistor chip No. 14 pins of U12 connect one end of relay J2, and No. 12 pins of described Darlington transistor chip U12 connect relay J3's One end, No. 10 pins of described Darlington transistor chip U12 connect one end of relay J4,
One end and one end of resistance R25-1 of No. 41 pins in parallel resistance R24-1 of described dsp chip U10, it is described The other end of resistance R24-1 connects No. 1 pin of photoelectrical coupler U14, and the other end of described resistance R25-1 connects diode One end of D10,
One end and one end of resistance R25-2 of No. 42 pins in parallel resistance R24-2 of described dsp chip U10, it is described The other end of resistance R24-2 connects No. 3 pins of photoelectrical coupler U14, and the other end of described resistance R25-2 connects diode One end of D11,
No. 43 pins of described dsp chip U10 connect one end of electric capacity C12, and the other end of described electric capacity C12 is in parallel No. 45 pins of No. 44 pins and described dsp chip U10 of described dsp chip U10,
One end and one end of resistance R25-3 of No. 47 pins in parallel resistance R24-3 of described dsp chip U10, it is described The other end of resistance R24-3 connects No. 5 pins of photoelectrical coupler U14, and the other end of described resistance R25-3 connects diode One end of D12,
One end and one end of resistance R25-4 of No. 48 pins in parallel resistance R24-4 of described dsp chip U10, it is described The other end of resistance R24-4 connects No. 7 pins of photoelectrical coupler U14, and the other end of described resistance R25-4 connects diode One end of D13,
The other end of described diode D10, the other end of diode D11, the other end of diode D12 and diode It is grounded after the other end parallel connection of D13,
No. 2 pins of described photoelectrical coupler U15, No. 4 pins of photoelectrical coupler U15, the 6 of photoelectrical coupler U15 Number pin, No. 8 pins of photoelectrical coupler U15, No. 2 pins of photoelectrical coupler U14, No. 4 pins of photoelectrical coupler U14, It is grounded after No. 8 pins in parallel of No. 6 pins and photoelectrical coupler U14 of photoelectrical coupler U14,
No. 1 pin and resistance R23-1 of No. 15 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 One end, No. 3 pins and resistance R23-2 of No. 13 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 One end, the one of No. 5 pins and resistance R23-3 of No. 11 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 End, No. 7 pins of No. 9 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 and one end of resistance R23-4,
No. 10 pins of described photoelectrical coupler U15, No. 12 pins of described photoelectrical coupler U15, described light No. 14 pins of electric coupler U15, No. 16 pins of described photoelectrical coupler U15, No. 10 of described photoelectrical coupler U14 Pin, No. 12 pins of described photoelectrical coupler U14, No. 14 pins and the described photoelectricity of described photoelectrical coupler U14 No. 16 pins of bonder U14 are all connected with 24V voltage ends,
No. 16 pins of described Darlington transistor chip U13 connect one end of relay J5, described Darlington transistor chip No. 14 pins of U13 connect one end of relay J6, and No. 12 pins of described Darlington transistor chip U13 connect relay J7's One end, No. 10 pins of described Darlington transistor chip U13 connect one end of relay J8, and described relay J1's is another End, the other end of relay J2, the other end of relay J3, the other end of relay J4, the other end of relay J5, relay No. 9 pins of the other end of J6, the other end of relay J7, the other end of relay J8 and Darlington transistor chip U13 are all connected with 24V voltage ends.
Beneficial effect:
This product digitized degree and integrated level are higher, strong antijamming capability, and within 1500 yuan, circuit is removed manufacturing cost Relay has beyond power consumption, integrated chip power consumption very little, and general power is within 20 watts.Operate and using simple, do not wrap in design Capacitor bank and live transformer is included, these are in existing electric substation already equipped with as long as so having the product utilization existing Transformation of the capacitor panel to existing electric substation it is also very convenient.
Description of the drawings:
Accompanying drawing 1 is controller block diagram of the present utility model.
Accompanying drawing 2 is signal detection of the present utility model and digitized shaping circuit figure.
Accompanying drawing 3 is of the present utility model based on DSP control capacitor switching output circuit figure A.
Accompanying drawing 4 is of the present utility model based on DSP control capacitor switching output circuit figure B.
Accompanying drawing 5 is of the present utility model based on DSP control capacitor switching output circuit figure C.
Accompanying drawing 6 is that voltage current phase of the present utility model inserts gate control counter signal.
Accompanying drawing 7 is external circuitses schematic diagram of the present utility model.
Specific embodiment:
Embodiment 1
Small transformer substation power factor compensating controller in a kind of numeric type, its composition include:Transformer secondary bus, it is described Transformer secondary bus A lines and N lines difference connection transformer, described transformator connects overvoltage detector, auxiliary simultaneously Help power supply and voltage signal zero-crossing comparator, described overvoltage detector connection DSP microprocessors, described voltage signal mistake Zero comparator connects lock mutually and 50 hertz of frequency multiplier circuits and Logical gate circuit simultaneously,
The A lines of described transformer secondary bus connect current detecting unit, described electric current by electric current detecting coil Detector unit connects over-current detector and current signal zero-crossing comparator, the described micro- places of amperometric connection DSP simultaneously Reason device, described current signal zero-crossing comparator connection Logical gate circuit,
Described lock phase and 50 hertz of frequency multiplier circuits connect Logical gate circuit, described Logical gate circuit connection DSP Microprocessor, described DSP microprocessors connect display circuit and drive circuit, described drive circuit connection compensation electricity simultaneously Appearance group.
The operation principle of this product:Analogue signal is detected by voltage signal detector unit and current detecting unit to deliver to Zero comparator, becomes sine wave signal into the square-wave signal of same frequency, and voltage square wave signal is sent into phase-locking frequency multiplication circuit, guaranteed Voltage and electrical network with frequency homophase in the case of make the frequency of voltage signal increase by 640 times so as to become the pulse signal of 32KHZ Detect for DSP.Voltage signal square wave and current signal square wave also send into Logical gate circuit simultaneously, by the phase of voltage and current Potential difference produces gated square wave signal, and the width of the square wave is decided by the size of phase contrast, and the bigger square wave of phase contrast is wider, when When 32KHZ signals send into gating circuit, when gated square wave is effective, (high level) passes through just can pulse, by the quantity of pulse The phase difference value of voltage and current is determined just.The pulse signal for passing through is sent into DSP and is counted, and the power factor that converts, and works as work( When rate factor is less than 0.9, capacitor will be put into, improves power factor of electric network.
Embodiment 2
Small transformer substation power factor compensating controller in numeric type described in embodiment 1, described transformator is by transformator Near+the 5V of voltage of secondary bus, described+5V are voltage end VCC5, the 14 of described voltage end VCC5 d type flip flop U4 in parallel No. 16 pins, No. 13 pins, No. 2 pins, one end of resistance R2 and the binary-coded decimal enumerator U2 of number pin and programmable counter U3 No. 16 pins, No. 10 pins, No. 2 pins and lock phase voltage-frequency U1 No. 16 pins;
No. 1 pin of described d type flip flop U4 connects No. 11 pins of d type flip flop U4, No. 2 of described d type flip flop U4 Pin connects No. 5 pins of d type flip flop U4, and No. 12 of No. 3 pins in parallel programmable counter U3 of described d type flip flop U4 are drawn Foot and No. 3 pins, No. 9 pins of described d type flip flop U4 connect No. 12 pins of d type flip flop U4;
No. 8 pins of No. 7 pins in parallel d type flip flop U4 of described d type flip flop U4, one end of resistance R5, resistance R4 One end, No. 10 pins of programmable counter U3, No. 8 pins of programmable counter U3, the other end of resistance R2, resistance R3 One end, No. 9 pins of binary-coded decimal enumerator U2, No. 8 pins of binary-coded decimal enumerator U2, No. 7 pins, the electricity of binary-coded decimal enumerator U2 No. 8 pins of the other end and lock phase voltage-frequency U1 of resistance R1;
No. 3 pins of No. 13 pin connection lock phase voltage-frequency U1 of described d type flip flop U4;
The other end of described resistance R4 connects No. 11 pins of programmable counter U3, the other end of described resistance R5 No. 14 pins of connection programmable counter U3, the other end of described resistance R3 connect No. 5 pins of programmable counter U3, No. 6 pins of described programmable counter U3 connect No. 6 pins of binary-coded decimal enumerator U2;
No. 4 pins of No. 1 pins in parallel lock phase voltage-frequency U1 of binary-coded decimal enumerator U2, No. 13 pins of NAND gate U7;
No. 11 pins of the other end connection lock phase voltage-frequency U1 of described resistance R1, No. 6 of described lock phase voltage-frequency U1 draw Connect electric capacity C14, No. 14 pins in parallel XOR gate U6 of described lock phase voltage-frequency U1 between No. 7 pins of foot and lock phase voltage-frequency U1 No. 1 pin and voltage zero-crossing comparator U5C outfan;
Connect between the outfan of described voltage zero-crossing comparator U5C and the negative input end of voltage zero-crossing comparator U5C Diode D1, the positive input terminal ground connection of described voltage zero-crossing comparator U5C, described voltage zero-crossing comparator U5C it is negative defeated Enter end and be also connected with one end of resistance R7, one end of other end parallel resistance R6 of described resistance R7, one end of electric capacity C1, voltage One end of detection coil T1 and one end of diode D4, other end shunt voltage detection coil T1 of described electric capacity C1 it is another One end of end, one end of resistance R8 and electric capacity C2, the other end of described electric capacity C2 connect the other end of resistance R6;Voltage detecting Coil T1 is a single voltage signal detection coil in transformator.
One end of other end parallel resistance R15 of described diode D4 and one end of electric capacity C6, described resistance R15's The negative input end of one end of other end shunt capacitance C7, one end of resistance R18 and overvoltage protection comparator U5B, described electricity It is grounded after the other end parallel connection of the other end, the other end of electric capacity C7 and resistance R18 that hold C6, described overvoltage protection comparator Connect diode D5, described overvoltage protection ratio between the outfan of the negative input end and overvoltage protection comparator U5B of U5B Positive input terminal compared with device U5B connects one end of variable resistance R17, after the other end of described variable resistance R17 connects resistance R16 The 3rd end ground connection of connection voltage input end VCC1, described variable resistance R17, described overvoltage protection comparator U5B's Outfan connects No. 7 pins of buffer U8;
No. 2 pins ground connection of described XOR gate U6, No. 3 pins of described XOR gate U6 and No. 8 pins it is in parallel with No. 3 pins of No. 2 pins and buffer U8 of not gate U7, No. 9 pins of described XOR gate U6 connect No. 6 pin levels 11 and draw Foot, No. 5 pins of described XOR gate U6 connect voltage input end VCC2, and No. 4 pins connections of described XOR gate U6 are buffered No. 11 pins of device U8, No. 10 pins of described XOR gate U6 connect No. 1 pin of NAND gate U7;
No. 12 pin ground connection of described XOR gate U6, No. 13 pin connection current over-zeros of described XOR gate U6 are compared The outfan of device U5D, the negative input end of the outfan and current over-zero comparator U5D of described current over-zero comparator U5D it Between connect diode D2, the negative input end of described current over-zero comparator U5D connects one end of resistance R9, described resistance R9 One end of other end parallel diode D6, one end of electric capacity C3, one end of one end of resistance R10 and electric current detecting coil T2, The other end of the other end shunt capacitance C3 of described electric current detecting coil T2, the other end of resistance R10 and current over-zero compare The positive input terminal of device U5D;
One end and one end of resistance R11 of the other end shunt capacitance C4 of described diode D6, described resistance R11's The negative input end of one end of other end shunt capacitance C5, one end of resistance R12 and overcurrent protection comparator U5A, described electricity It is grounded after the other end parallel connection for holding the other end of C4, the other end of electric capacity C5, resistance R12, described current protection comparator U5A Positive input terminal connect one end of variable resistance R14, connection electricity after the other end connection resistance R13 of described variable resistance R14 The 3rd end ground connection of pressure input VCC4, described variable resistance R14, the outfan of described overcurrent protection comparator U5A No. 9 pins of connection buffer U8;
No. 5 pins and No. 6 pins of No. 3 pin connection NAND gate U7 of described NAND gate U7, described NAND gate U7 No. 4 pins connect No. 12 pins of NAND gate U7, No. 9 of No. 11 pins connection NAND gate U7 of described NAND gate U7 are drawn Foot, No. 8 pins of described NAND gate U7 connect voltage input end VCC3, and No. 10 pins connections of described NAND gate U7 are buffered No. 14 pins of device U8;
No. 2 pins of described buffer U8 connect No. 5 pins of buffer U8, No. 4 pins of described buffer U8 No. 16 pins of connection dsp chip U10, No. 15 pins of described buffer U8 connect No. 25 pins of dsp chip U10, institute No. 12 pins of the buffer U8 for stating connect No. 15 pins of dsp chip U10, and No. 6 pins of described buffer U8 connect DSP No. 27 pins of chip U10, No. 10 pins of described buffer U8 connect No. 26 pins of dsp chip U10.
Power-factor compensator circuit is divided into two parts, and a part is signal detection and digitized shaping circuit, another portion It is DSP control capacitor switching output circuits to divide.
1. signal detection and digitized logic circuit
As shown in fig. 6, phase voltage signal is by voltage detecting coil T1, AC power frequency signal delivers to electricity to Part I circuit Zero comparator U5C is pressed through, AC signal is converted into square-wave signal.It is single that the signal point two-way sends into lock phase voltage-frequency circuit U 1 all the way First CD4046, the unit lock is mutually and by binary-coded decimal enumerator MC14518, programmable counter CD4522, d type flip flop CD4013 Frequency dividing, so locks phase voltage-frequency circuit CD4046 and will produce high-frequency signal from lock phase voltage-frequency circuit CD4046-4 feet by voltage-frequency effect 640 times of 50HZ frequencys multiplication are produced 32KHZ pulse signals by output, the design.
The second road of voltage square wave signal reaches XOR gate U6, the logical process of voltage signalBy identical For 0, different is 1 principle, U6-3=U5-8For voltage signal homophase square wave.Electric currentSignal is examined by electric current Test coil T2, AC signal deliver to current over-zero comparator U5D, and AC signal is converted into square-wave signal.The signal is sent into different OR gate U6, the in the same manner logical process of current square-wave signalBy being mutually all 0, different is 1 principle, U6-11 =U5-14 is current signal homophase square wave.Voltage produces phase contrast gate-control signal Jing after XOR gate with current square-wave signalRemove tailing edge gate, the waveform of XOR gate U6-10 and XOR gate U6-3 is obtained by NAND gate U7Waveform, then Jing is reversely, it is final to obtain positive gate-control signal U7-4.Lock phase voltage-frequency circuit U Unit 1 The high frequency 32KHZ signals of CD4046-4 feet introduce NAND gate U7-13, produce NAND gate U7-10 in the presence of gate-control signal Signal, the number of pulses for passing through are the phase contrast Φ of voltage and electric current through conversion, as shown in Fig. 6 and Fig. 2.
About the calculated relationship of angle:Common frequency power network frequency is 50HZ, and the cycle is the 1/50=0.02 seconds, and the half period is 0.01 Second, through phase locking frequency multiplying, 32000 pulses in 1 second, are produced, also just 640 times 50HZ frequencys multiplication.The pulse passed through in half period Number is x, then have:
X=320 umber of pulse
When turn-on angle is Φ, the umber of pulse for passing through then has for N:
How many spending is represented with regard to 1 pulse(radian), the angle that N number of pulse is represented:
The angle that 1 pulse is represented asIndividual pulse
Microprocessor calculate power factor be:
About the output signal after digitized shaping:U8 is 74HC4050 buffer chips, is 3.3V for electrical bias, has Five tunnel output signals, buffer U8-4 voltage synchronous signals couple DSP-ADC_B4;The current synchronization of buffer chip U8-12 Signal, couples DSP-ADC_B3;U8-15 phase contrast pulse signals, couple DSP-XCLKIN;Buffer chip U8-6 overvoltage is protected Shield signal, couples DSP-GPIO16;Buffer chip U8-10 overcurrent protection signal, couples DSP-GPIO17.
Embodiment 3
Embodiment
Small transformer substation power factor compensating controller in numeric type described in 2, No. 2 pins of described dsp chip U10 connect It is grounded after connecting resistance R21,
One end and one end of reset key AF of No. 3 pins in parallel resistance R20 of described dsp chip U10, described resistance The other end connection voltage end VDD1 of R20, the other end of described reset key AF are grounded, described reset key AF shunt capacitance C8,
One end of No. 4 pins in parallel resistance R33-8 of described dsp chip U10 and one end of switch A8,
One end of No. 5 pins in parallel resistance R33-7 of described dsp chip U10 and one end of switch A7,
One end of No. 6 pins in parallel resistance R33-6 of described dsp chip U10 and one end of switch A6,
One end of No. 7 pins in parallel resistance R33-5 of described dsp chip U10 and one end of switch A5,
One end of No. 8 pins in parallel resistance R33-4 of described dsp chip U10 and one end of switch A4,
One end of No. 9 pins in parallel resistance R33-3 of described dsp chip U10 and one end of switch A3,
One end of No. 10 pins in parallel resistance R33-2 of described dsp chip U10 and one end of switch A2,
One end of No. 13 pins in parallel resistance R33-1 of described dsp chip U10 and one end of switch A1,
One end of No. 14 pins in parallel resistance R33-0 of described dsp chip U10 and one end of switch AK,
The other end of described resistance R33-8, the other end of resistance R33-7, the other end of resistance R33-6, resistance R33-5 The other end, the other end of resistance R33-4, the other end of resistance R33-3, the other end of resistance R33-2, resistance R33-1 it is another Connect voltage end VDD2 after the other end parallel connection of one end and resistance R33-0,
It is the other end of described switch A8, the other end of described switch A7, the other end of described switch A6, described The switch other end of A5, the other end of described switch A4, the other end of described switch A3, described switch A2 it is another It is grounded after the other end parallel connection at end, the other end of described switch A1 and described switch AK;
One end of No. 11 pins in parallel voltage end VDD3 and electric capacity C9 of described dsp chip U10,
The other end of No. 12 pins in parallel electric capacity C9 of described dsp chip U10 and ground connection,
One end of No. 19 pin connecting luminous diode D15 of described dsp chip U10,
No. 20 pins of described dsp chip U10 connect one end of resistance R32-4,
No. 21 pins of described dsp chip U10 connect one end of resistance R32-3,
No. 22 pins of described dsp chip U10 connect one end of resistance R32-2,
No. 23 pins of described dsp chip U10 connect one end of resistance R32-1,
The other end of described resistance R32-1, the other end of resistance R32-2, the other end of resistance R32-3 and resistance R32- One end of one end, voltage end VDD4 and resistance R31 of 4 equal parallel resistance R30 of the other end, the other end of described resistance R30 The other end of connecting luminous diode D15, the other end of described resistance R31 are grounded after connecting diode D14;
No. 15 pins of No. 31 pin connection CMOS chip U11 of described dsp chip U10 and one end of resistance R29,
No. 32 pins of described dsp chip U10 connect one end of electric capacity C10, and the other end of described electric capacity C10 is in parallel No. 33 pins of dsp chip U10, No. 34 pins of dsp chip U10 and one end of electric capacity C11,
No. 35 pins in parallel voltage end VDD5 of described dsp chip U10, the other end of electric capacity C11, the one of resistance R28 No. 16 pins of end, the other end of resistance R29, one end of electric capacity C13 and CMOS chip U11, the other end of described electric capacity C13 Ground connection,
No. 14 pins and the other end of resistance R28 of No. 36 pins in parallel CMOS chip U11 of described dsp chip U10,
No. 11 pins of described CMOS chip U11 connect No. 6 pins of liquid crystal display U9, described CMOS chip No. 10 pins of U11 connect No. 5 pins of liquid crystal display U9, No. 9 pin connection liquid crystal display U9's of CMOS chip U11 No. 4 pins,
No. 1 pin connection resistance R34 connection voltage VDD6 end of described CMOS chip U11, described CMOS chip U11 No. 2 pins in parallel CMOS chip U11 No. 3 pins after be grounded, No. 4 pins connection liquid crystals of described CMOS chip U11 Show No. 11 pins of device U9, No. 5 pins of described CMOS chip U11 connect No. 12 pins of liquid crystal display U9, described No. 6 pins of CMOS chip U11 connect No. 13 pins of liquid crystal display U9, and No. 7 pins of described CMOS chip U11 connect No. 14 pins of liquid crystal display U9, No. 8 pins ground connection of described CMOS chip U11, the 15 of described liquid crystal display U9 No. 3 pins of number pin connection voltage end VCC6, described liquid crystal display U9 connect the 3rd end of resistance R19, described liquid One end of No. 2 pins in parallel voltage end VDD7 and resistance R19 of crystal display U9, No. 1 pin of described liquid crystal display U9 The other end of parallel resistance R19 and ground connection;
One end and one end of resistance R27-1 of No. 37 pins in parallel resistance R26-1 of described dsp chip U10, it is described The other end of resistance R26-1 connects No. 1 pin of photoelectrical coupler U15, and the other end of described resistance R27-1 connects diode One end of D6,
One end and one end of resistance R27-2 of No. 38 pin connection parallel resistances R26-2 of described dsp chip U10, institute The other end of the resistance R26-2 for stating connects No. 3 pins of photoelectrical coupler U15, and the other end of described resistance R27-2 connects two One end of pole pipe D7,
One end and one end of resistance R27-3 of No. 39 pin connection parallel resistances R26-3 of described dsp chip U10, institute The other end of the resistance R26-3 for stating connects No. 5 pins of photoelectrical coupler U15, and the other end of described resistance R27-3 connects two One end of pole pipe D8,
One end and one end of resistance R27-4 of No. 40 pins in parallel resistance R26-4 of described dsp chip U10, it is described The other end of resistance R26-4 connects No. 7 pins of photoelectrical coupler U15, and the other end of described resistance R27-4 connects diode One end of D9,
The other end of described diode D6, the other end of diode D7, the other end of diode D8 and diode D9's It is grounded after other end parallel connection,
No. 1 pin and resistance R22-1 of No. 15 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 One end, No. 3 pins and resistance R22-2 of No. 13 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 One end, the one of No. 5 pins and resistance R22-3 of No. 11 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 End, No. 7 pins of No. 9 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 and one end of resistance R22-4,
No. 16 pins of described Darlington transistor chip U12 connect one end of relay J1, described Darlington transistor chip No. 14 pins of U12 connect one end of relay J2, and No. 12 pins of described Darlington transistor chip U12 connect relay J3's One end, No. 10 pins of described Darlington transistor chip U12 connect one end of relay J4,
One end and one end of resistance R25-1 of No. 41 pins in parallel resistance R24-1 of described dsp chip U10, it is described The other end of resistance R24-1 connects No. 1 pin of photoelectrical coupler U14, and the other end of described resistance R25-1 connects diode One end of D10,
One end and one end of resistance R25-2 of No. 42 pins in parallel resistance R24-2 of described dsp chip U10, it is described The other end of resistance R24-2 connects No. 3 pins of photoelectrical coupler U14, and the other end of described resistance R25-2 connects diode One end of D11,
No. 43 pins of described dsp chip U10 connect one end of electric capacity C12, and the other end of described electric capacity C12 is in parallel No. 45 pins of No. 44 pins and described dsp chip U10 of described dsp chip U10,
One end and one end of resistance R25-3 of No. 47 pins in parallel resistance R24-3 of described dsp chip U10, it is described The other end of resistance R24-3 connects No. 5 pins of photoelectrical coupler U14, and the other end of described resistance R25-3 connects diode One end of D12,
One end and one end of resistance R25-4 of No. 48 pins in parallel resistance R24-4 of described dsp chip U10, it is described The other end of resistance R24-4 connects No. 7 pins of photoelectrical coupler U14, and the other end of described resistance R25-4 connects diode One end of D13,
The other end of described diode D10, the other end of diode D11, the other end of diode D12 and diode It is grounded after the other end parallel connection of D13,
No. 1 pin of described photoelectrical coupler U15, No. 3 pins of photoelectrical coupler U15, the 5 of photoelectrical coupler U15 Number pin, No. 7 pins of photoelectrical coupler U15, No. 1 pin of photoelectrical coupler U14, No. 3 pins of photoelectrical coupler U14, It is grounded after No. 7 pins in parallel of No. 5 pins and photoelectrical coupler U14 of photoelectrical coupler U14,
No. 1 pin and resistance R23-1 of No. 15 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 One end, No. 3 pins and resistance R23-2 of No. 13 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 One end, the one of No. 5 pins and resistance R23-3 of No. 11 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 End, No. 7 pins of No. 9 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 and one end of resistance R23-4,
No. 10 pins of described photoelectrical coupler U15, No. 12 pins of described photoelectrical coupler U15, described light No. 14 pins of electric coupler U15, No. 16 pins of described photoelectrical coupler U15, No. 10 of described photoelectrical coupler U14 Pin, No. 12 pins of described photoelectrical coupler U14, No. 14 pins and the described photoelectricity of described photoelectrical coupler U14 No. 16 pins of bonder U14 are all connected with 24V voltage ends,
No. 16 pins of described Darlington transistor chip U13 connect one end of relay J5, described Darlington transistor chip No. 14 pins of U13 connect one end of relay J6, and No. 12 pins of described Darlington transistor chip U13 connect relay J7's One end, No. 10 pins of described Darlington transistor chip U13 connect one end of relay J8, and described relay J1's is another End, the other end of relay J2, the other end of relay J3, the other end of relay J4, the other end of relay J5, relay No. 9 pins of the other end of J6, the other end of relay J7, the other end of relay J8 and Darlington transistor chip U13 are all connected with 24V voltage ends.
VCC1-VCC6 is both connected to together;
VDD1-VDD7 is both connected to together;
24V voltage ends are both connected to together;
VCC1-VCC6+5V and VDD1-VDD7+3.3V shares earth terminal, and the earth terminal of 24V is independent.
2.DSP controls capacitor switching output circuit
The design use TI companies production for numerically controlled chip TMS320F28027, it is 32 bit DSPs Chip Ui0, chip U10 have 1 road SCI ports, 1 road SPI communication mouth, 1 tunnel 12C bus communication mouths, change with 13 road A/D Mouthful, 8 road ePWM delivery outlets, eCAP enhancement mode trapping modules.
The main feature of dsp chip has:
(1) 32 efficient CPU, (2) 60MHz onboard clocks, (3) 3.3V single supplies are powered, (4) 3 32 CPU timer, (5) 22 programmable multifunctional multiplexing GPIO pins, (6) 16 32K pieces dodge internal memory, 16 6K SRAM, 1 Position 1K OTP One Time Programmable internal memories, guiding ROM are available, 128 safe key circuits are with TMS320F28027 as master control Chip, is designed with outputting circuit for relay, power factor display circuit, input through keyboard circuit, input signal port distribution, circuit As in Figure 3-5.
Outputting circuit for relay:Circuit is by TLP251-4 isolation optocoupler chips U14 and U15, ULN2003 Darlington transistor chip U12 and U13,8 road 24V relays and LED indicate diode composition, and drive signal is sent by DSP, drives No. 8 relays, with evidence The size of power factor of electric network, relay tip drive capacitor box catalyst to carry out switching to electric capacity.
Power factor display circuit:Display circuit is made up of LCD1602 LCDs, PCF8574 serioparallel exchange chips. Between DSP and LCD, data transmission adopts 12C mode bus are communicated, and the communication mode only uses two lines, when data wire SDA and serial Clock line SCL, serial data are converted to 8 bit parallel datas by PCF8574 serioparallel exchange chips, and low four of data connect LCD's Gao Siwei is used as data wire, the high four function control positions for meeting LCD (only with three);LCD1602 is driven using high four BITBUS network Pattern, the functional mode are 28H control words (DL=0);Circuit occupancy hardware interface resources are few, and circuit is simple.
Input through keyboard circuit:The circuit is made up of AF reset keys, AK operation keys, AK1-Ak8 capacitor manual operation keys, handss Dynamic key is use when maintenance and experiment.
Input signal port distribution:
Count port DSP-25 feet (XCLKIN), counted using eCAP enhancement mode capturing functions;Recording impulse number is changed The phase difference angle of voltage x current is counted as, the size of power factor is judged, the switching of electric capacity is controlled;DSP-26 foot (GPIO17/ TZ3), over-current signal input, performs overcurrent protection function;DSP-27 feet (GPIO16/TZ2), over-pressed signal input part are performed Over-voltage protecting function;DSP-16 feet (ADC_B4), voltage synchronous signal input part perform calculating cycle ena-bung function;DSP-15 Foot (ADC_B3), current synchronous signal input perform current phase lead-lag arbitration functions.
" circuit is indicated by TLP251-4 isolation optocoupler chips, ULN2003 Darlington transistor chips, 8 road 24V relays and LED Diode is constituted.Drive signal is sent by DSP, drives No. 8 relays, with the size according to power factor of electric network, relay tip Capacitor box catalyst is driven to carry out switching to electric capacity.”
DSP controls 8 road capacitor switching signals, Jing TLP251-4 isolation optocoupler chips, ULN2003 Darlington transistor chip drives 8 tunnel relay electrical equipment J1~relay J8, its contact control relay JC1~relay JC8 contactor coils, relay The contact of JC1~relay JC8 drives three-phase condenser bank, 8 groups of electric capacity to be thrown according to the size variation of power factor of electric network Enter or cut off.(such as Fig. 7)
Certainly, described above is not that, to restriction of the present utility model, this utility model is also not limited to the example above, Change, remodeling, addition or replacement that those skilled in the art are made in essential scope of the present utility model, also should Belong to protection domain of the present utility model.

Claims (3)

1. small transformer substation power factor compensating controller in a kind of numeric type, its composition include:Transformer secondary bus, its feature It is:The A lines of described transformer secondary bus and N lines difference connection transformer, described transformator connect overvoltage inspection simultaneously Survey device, accessory power supply and voltage signal zero-crossing comparator, described overvoltage detector connection DSP microprocessors, described electricity Pressure signal zero-crossing comparator connects lock mutually and 50 hertz of frequency multiplier circuits and Logical gate circuit simultaneously,
The A lines of described transformer secondary bus connect current detecting unit, described current detecting by electric current detecting coil Unit connects over-current detector and current signal zero-crossing comparator simultaneously, and described amperometric connects DSP microprocessors, Described current signal zero-crossing comparator connection Logical gate circuit,
Described lock phase and 50 hertz of frequency multiplier circuits connect Logical gate circuit, the described micro- places of Logical gate circuit connection DSP Reason device, described DSP microprocessors connect display circuit and drive circuit, described drive circuit connection compensating electric capacity simultaneously Group.
2. small transformer substation power factor compensating controller in numeric type according to claim 1, is characterized in that:Described change The voltage of transformer secondary bus near+5V, described+5V are voltage end VCC5, described voltage end VCC5 parallel connection D by depressor No. 16 pins of No. 14 pins and programmable counter U3 of trigger U4, No. 13 pins, No. 2 pins, one end of resistance R2 and No. 16 pins of No. 16 pins of binary-coded decimal enumerator U2, No. 10 pins, No. 2 pins and lock phase voltage-frequency U1;
No. 1 pin of described d type flip flop U4 connects No. 11 pins of d type flip flop U4, No. 2 pins of described d type flip flop U4 No. 5 pins of connection d type flip flop U4, No. 12 pins of No. 3 pins in parallel programmable counter U3 of described d type flip flop U4 and No. 3 pins, No. 9 pins of described d type flip flop U4 connect No. 12 pins of d type flip flop U4;
No. 8 pins of No. 7 pins in parallel d type flip flop U4 of described d type flip flop U4, one end of resistance R5, one end of resistance R4, No. 10 pins of programmable counter U3, No. 8 pins of programmable counter U3, the other end of resistance R2, one end of resistance R3, No. 9 pins of binary-coded decimal enumerator U2, No. 8 pins of binary-coded decimal enumerator U2, No. 7 pins of binary-coded decimal enumerator U2, resistance R1 No. 8 pins of the other end and lock phase voltage-frequency U1;
No. 3 pins of No. 13 pin connection lock phase voltage-frequency U1 of described d type flip flop U4;
The other end of described resistance R4 connects No. 11 pins of programmable counter U3, and the other end of described resistance R5 connects No. 14 pins of programmable counter U3, the other end of described resistance R3 connect No. 5 pins of programmable counter U3, described No. 6 pins of programmable counter U3 connect No. 6 pins of binary-coded decimal enumerator U2;
No. 4 pins of No. 1 pins in parallel lock phase voltage-frequency U1 of binary-coded decimal enumerator U2, No. 13 pins of NAND gate U7;
No. 11 pins of the other end connection lock phase voltage-frequency U1 of described resistance R1, No. 6 pins of described lock phase voltage-frequency U1 and Connect electric capacity C14 between No. 7 pins of lock phase voltage-frequency U1, the 1 of No. 14 pins in parallel XOR gate U6 of described lock phase voltage-frequency U1 The outfan of number pin and voltage zero-crossing comparator U5C;
Connect two poles between the outfan of described voltage zero-crossing comparator U5C and the negative input end of voltage zero-crossing comparator U5C Pipe D1, the positive input terminal ground connection of described voltage zero-crossing comparator U5C, the negative input end of described voltage zero-crossing comparator U5C It is also connected with one end of resistance R7, one end of other end parallel resistance R6 of described resistance R7, one end of electric capacity C1, voltage detecting One end of coil T1 and one end of diode D4, the other end of other end shunt voltage detection coil T1 of described electric capacity C1 and One end of resistance R8, the other end of R8 connect one end of electric capacity C2, and the other end of described electric capacity C2 connects the another of resistance R6 End;
One end of other end parallel resistance R15 of described diode D4 and one end of electric capacity C6, described resistance R15's are another The negative input end of one end, one end of resistance R18 and overvoltage protection comparator U5B of end shunt capacitance C7, described electric capacity C6 The other end, the other end of electric capacity C7 and resistance R18 the other end parallel connection after be grounded, described overvoltage protection comparator U5B Negative input end and the outfan of overvoltage protection comparator U5B between connect diode D5, described overvoltage protection compares The positive input terminal of device U5B connects one end of variable resistance R17, and the other end of described variable resistance R17 connects after connecting resistance R16 Meet voltage input end VCC1, the 3rd end ground connection of described variable resistance R17, described overvoltage protection comparator U5B's are defeated Go out No. 7 pins of end connection buffer U8;
No. 2 pins ground connection of described XOR gate U6, No. 3 pins of described XOR gate U6 and No. 8 pins parallel connection NAND gate No. 3 pins of No. 2 pins and buffer U8 of U7, No. 9 pins of described XOR gate U6 connect No. 11 pins of No. 6 pin levels, No. 5 pin connection voltage input end VCC2 of described XOR gate U6, No. 4 pins of described XOR gate U6 connect buffer U8 No. 11 pins, No. 10 pins of described XOR gate U6 connect No. 1 pin of NAND gate U7;
No. 12 pin ground connection of described XOR gate U6, No. 13 pins of described XOR gate U6 connect current over-zero comparators The outfan of U5D, between the described outfan of current over-zero comparator U5D and the negative input end of current over-zero comparator U5D Connection diode D2, the negative input end of described current over-zero comparator U5D connect one end of resistance R9, described resistance R9's One end of one end of other end parallel diode D6, one end of electric capacity C3, one end of resistance R10 and electric current detecting coil T2, institute The other end of the other end shunt capacitance C3 of the electric current detecting coil T2 for stating, the other end of resistance R10 and current over-zero comparator The positive input terminal of U5D;
One end and one end of resistance R11 of the other end shunt capacitance C4 of described diode D6, described resistance R11's are another The negative input end of one end, one end of resistance R12 and overcurrent protection comparator U5A of end shunt capacitance C5, described electric capacity C4 The other end, the other end of electric capacity C5, resistance R12 the other end parallel connection after be grounded, described current protection comparator U5A is just Input connects one end of variable resistance R14, and it is defeated that the other end of described variable resistance R14 connects voltage after connecting resistance R13 Enter and hold VCC4, the 3rd end of described variable resistance R14 is grounded, the outfan of described overcurrent protection comparator U5A connects No. 9 pins of buffer U8;
No. 5 pins and No. 6 pins of No. 3 pins connection NAND gate U7 of described NAND gate U7, No. 4 of described NAND gate U7 Pin connects No. 12 pins of NAND gate U7, and No. 11 pins of described NAND gate U7 connect No. 9 pins of NAND gate U7, described NAND gate U7 No. 8 pins connection voltage input end VCC3, No. 10 pins connection buffer U8's of described NAND gate U7 No. 14 pins;
No. 2 pins of described buffer U8 connect No. 5 pins of buffer U8, and No. 4 pins of described buffer U8 connect No. 16 pins of dsp chip U10, No. 15 pins of described buffer U8 connect No. 25 pins of dsp chip U10, described No. 12 pins of buffer U8 connect No. 15 pins of dsp chip U10, and No. 6 pins of described buffer U8 connect dsp chips No. 27 pins of U10, No. 10 pins of described buffer U8 connect No. 26 pins of dsp chip U10.
3. small transformer substation power factor compensating controller in numeric type according to claim 2, is characterized in that:Described It is grounded after No. 2 pin connection resistance R21 of dsp chip U10,
One end and one end of reset key AF of No. 3 pins in parallel resistance R20 of described dsp chip U10, described resistance R20 Other end connection voltage end VDD1, the other end ground connection of described reset key AF, described reset key AF shunt capacitance C8,
One end of No. 4 pins in parallel resistance R33-8 of described dsp chip U10 and one end of switch A8,
One end of No. 5 pins in parallel resistance R33-7 of described dsp chip U10 and one end of switch A7,
One end of No. 6 pins in parallel resistance R33-6 of described dsp chip U10 and one end of switch A6,
One end of No. 7 pins in parallel resistance R33-5 of described dsp chip U10 and one end of switch A5,
One end of No. 8 pins in parallel resistance R33-4 of described dsp chip U10 and one end of switch A4,
One end of No. 9 pins in parallel resistance R33-3 of described dsp chip U10 and one end of switch A3,
One end of No. 10 pins in parallel resistance R33-2 of described dsp chip U10 and one end of switch A2,
One end of No. 13 pins in parallel resistance R33-1 of described dsp chip U10 and one end of switch A1,
One end of No. 14 pins in parallel resistance R33-0 of described dsp chip U10 and one end of switch AK,
The other end of described resistance R33-8, the other end of resistance R33-7, the other end of resistance R33-6, resistance R33-5 it is another One end, the other end of resistance R33-4, the other end of resistance R33-3, the other end of resistance R33-2, the other end of resistance R33-1 And connect voltage end VDD2 after the other end parallel connection of resistance R33-0,
The other end of described switch A8, the other end of described switch A7, the other end of described switch A6, described switch The other end of A5, the other end of described switch A4, the other end of described switch A3, the other end of described switch A2, institute It is grounded after the other end parallel connection of the other end of the switch A1 for stating and described switch AK;
One end of No. 11 pins in parallel voltage end VDD3 and electric capacity C9 of described dsp chip U10,
The other end of No. 12 pins in parallel electric capacity C9 of described dsp chip U10 and ground connection,
One end of No. 19 pin connecting luminous diode D15 of described dsp chip U10,
No. 20 pins of described dsp chip U10 connect one end of resistance R32-4,
No. 21 pins of described dsp chip U10 connect one end of resistance R32-3,
No. 22 pins of described dsp chip U10 connect one end of resistance R32-2,
No. 23 pins of described dsp chip U10 connect one end of resistance R32-1,
The other end of described resistance R32-1, the other end of resistance R32-2, the other end of resistance R32-3 and resistance R32-4's One end of one end, voltage end VDD4 and resistance R31 of equal parallel resistance R30 of the other end, the other end of described resistance R30 connect The other end of light emitting diode D15, the other end of described resistance R31 are grounded after connecting diode D14;
No. 15 pins of No. 31 pin connection CMOS chip U11 of described dsp chip U10 and one end of resistance R29,
No. 32 pins of described dsp chip U10 connect one end of electric capacity C10, the other end parallel connection DSP of described electric capacity C10 No. 33 pins of chip U10, No. 34 pins of dsp chip U10 and one end of electric capacity C11,
No. 35 pins in parallel voltage end VDD5, the other end of electric capacity C11, one end of resistance R28, the electricity of described dsp chip U10 No. 16 pins of the other end, one end of electric capacity C13 and CMOS chip U11 of resistance R29, the other end of described electric capacity C13 are grounded,
No. 14 pins and the other end of resistance R28 of No. 36 pins in parallel CMOS chip U11 of described dsp chip U10,
No. 11 pins of described CMOS chip U11 connect No. 6 pins of liquid crystal display U9, described CMOS chip U11's No. 10 pins connect No. 5 pins of liquid crystal display U9, and No. 4 of No. 9 pin connection liquid crystal display U9 of CMOS chip U11 are drawn Foot,
No. 1 pin connection resistance R34 connection voltage VDD6 ends of described CMOS chip U11, the 2 of described CMOS chip U11 It is grounded after No. 3 pins of number pins in parallel CMOS chip U11, No. 4 pins connection liquid crystal displays of described CMOS chip U11 No. 11 pins of U9, No. 5 pins of described CMOS chip U11 connect No. 12 pins of liquid crystal display U9, described CMOS No. 6 pins of chip U11 connect No. 13 pins of liquid crystal display U9, and No. 7 pins of described CMOS chip U11 connect liquid crystal No. 14 pins of display U9, No. 8 pins of described CMOS chip U11 are grounded, and No. 15 of described liquid crystal display U9 are drawn Foot connects voltage end VCC6, and No. 3 pins of described liquid crystal display U9 connect the 3rd end of resistance R19, described liquid crystal Show one end of No. 2 pins in parallel voltage end VDD7 and resistance R19 of device U9, No. 1 pins in parallel of described liquid crystal display U9 The other end of resistance R19 and ground connection;
One end and one end of resistance R27-1 of No. 37 pins in parallel resistance R26-1 of described dsp chip U10, described resistance The other end of R26-1 connects No. 1 pin of photoelectrical coupler U15, and the other end of described resistance R27-1 connects diode D6's One end,
One end and one end of resistance R27-2 of No. 38 pin connection parallel resistances R26-2 of described dsp chip U10, it is described The other end of resistance R26-2 connects No. 3 pins of photoelectrical coupler U15, and the other end of described resistance R27-2 connects diode One end of D7,
One end and one end of resistance R27-3 of No. 39 pin connection parallel resistances R26-3 of described dsp chip U10, it is described The other end of resistance R26-3 connects No. 5 pins of photoelectrical coupler U15, and the other end of described resistance R27-3 connects diode One end of D8,
One end and one end of resistance R27-4 of No. 40 pins in parallel resistance R26-4 of described dsp chip U10, described resistance The other end of R26-4 connects No. 7 pins of photoelectrical coupler U15, and the other end of described resistance R27-4 connects diode D9's One end,
The other end of described diode D6, the other end of diode D7, the other end of diode D8 and diode D9's is another It is grounded after the parallel connection of end,
The one of No. 1 pin and resistance R22-1 of No. 15 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 End, the one of No. 3 pins and resistance R22-2 of No. 13 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 End, the one of No. 5 pins and resistance R22-3 of No. 11 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 End, No. 7 pins of No. 9 pins in parallel Darlington transistor chip U12 of described photoelectrical coupler U15 and one end of resistance R22-4,
No. 16 pins of described Darlington transistor chip U12 connect one end of relay J1, described Darlington transistor chip U12's No. 14 pins connect one end of relay J2, and No. 12 pins of described Darlington transistor chip U12 connect one end of relay J3, No. 10 pins of described Darlington transistor chip U12 connect one end of relay J4,
One end and one end of resistance R25-1 of No. 41 pins in parallel resistance R24-1 of described dsp chip U10, described electricity The other end of resistance R24-1 connects No. 1 pin of photoelectrical coupler U14, and the other end of described resistance R25-1 connects diode One end of D10,
One end and one end of resistance R25-2 of No. 42 pins in parallel resistance R24-2 of described dsp chip U10, described resistance The other end of R24-2 connects No. 3 pins of photoelectrical coupler U14, and the other end of described resistance R25-2 connects diode D11 One end,
No. 43 pins of described dsp chip U10 connect one end of electric capacity C12, and the other end of described electric capacity C12 is in parallel described Dsp chip U10 No. 44 pins and No. 45 pins of described dsp chip U10,
One end and one end of resistance R25-3 of No. 47 pins in parallel resistance R24-3 of described dsp chip U10, described resistance The other end of R24-3 connects No. 5 pins of photoelectrical coupler U14, and the other end of described resistance R25-3 connects diode D12 One end,
One end and one end of resistance R25-4 of No. 48 pins in parallel resistance R24-4 of described dsp chip U10, described resistance The other end of R24-4 connects No. 7 pins of photoelectrical coupler U14, and the other end of described resistance R25-4 connects diode D13 One end,
The other end of described diode D10, the other end of diode D11, the other end of diode D12 and diode D13's It is grounded after other end parallel connection,
No. 2 pins of described photoelectrical coupler U15, No. 4 pins of photoelectrical coupler U15, No. 6 of photoelectrical coupler U15 draw Foot, No. 8 pins of photoelectrical coupler U15, No. 2 pins of photoelectrical coupler U14, No. 4 pins, the photoelectricity of photoelectrical coupler U14 It is grounded after No. 8 pins in parallel of No. 6 pins and photoelectrical coupler U14 of bonder U14,
The one of No. 1 pin and resistance R23-1 of No. 15 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 End, the one of No. 3 pins and resistance R23-2 of No. 13 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 End, the one of No. 5 pins and resistance R23-3 of No. 11 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 End, No. 7 pins of No. 9 pins in parallel Darlington transistor chip U13 of described photoelectrical coupler U14 and one end of resistance R23-4,
No. 10 pins of described photoelectrical coupler U15, No. 12 pins of described photoelectrical coupler U15, described light thermocouple No. 14 pins of clutch U15, No. 16 pins of described photoelectrical coupler U15, No. 10 of described photoelectrical coupler U14 draw Foot, No. 12 pins of described photoelectrical coupler U14, No. 14 pins of described photoelectrical coupler U14 and described light thermocouple No. 16 pins of clutch U14 are all connected with 24V voltage ends,
No. 16 pins of described Darlington transistor chip U13 connect one end of relay J5, described Darlington transistor chip U13's No. 14 pins connect one end of relay J6, and No. 12 pins of described Darlington transistor chip U13 connect one end of relay J7, No. 10 pins of described Darlington transistor chip U13 connect one end of relay J8, the other end of described relay J1, relay The other end of device J2, the other end of relay J3, the other end of relay J4, the other end of relay J5, relay J6 it is another No. 9 pins of one end, the other end of relay J7, the other end of relay J8 and Darlington transistor chip U13 are all connected with 24V voltages End;
Model CD4013 of described d type flip flop U4.
CN201621050444.7U 2016-09-12 2016-09-12 Medium and small power factor compensation of electric substation controller of digit type CN206041506U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107329513A (en) * 2017-07-13 2017-11-07 东莞市阿特为电气有限公司 Switching circuit
CN107544370A (en) * 2017-10-31 2018-01-05 河南飞防兵科技有限公司 A kind of robot driving device compensation system system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107329513A (en) * 2017-07-13 2017-11-07 东莞市阿特为电气有限公司 Switching circuit
CN107544370A (en) * 2017-10-31 2018-01-05 河南飞防兵科技有限公司 A kind of robot driving device compensation system system

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