CN202995519U

CN202995519U - Intelligent power measurement and control device

Info

Publication number: CN202995519U
Application number: CN201220754222.9U
Authority: CN
Inventors: 蔡甫寒
Original assignee: RUIAN GONGTAI ELECTRIC APPLIANCE CO Ltd
Current assignee: RUIAN GONGTAI ELECTRIC APPLIANCE CO Ltd
Priority date: 2012-12-11
Filing date: 2012-12-11
Publication date: 2013-06-12
Anticipated expiration: 2022-12-11
Also published as: CN103034272B; CN103034272A

Abstract

The utility model discloses an intelligent power measurement and control device. In the device, a multi-channel multi-isolation AC-DC dual-power composite transformer switch power supply can supply power by using an AC power supply and a DC power supply; multi-channel multi-isolation coil windings are respectively wound on two transformers by the composite transformer, thereby overcoming disadvantages of the prior art, improving anti-interference measures, and achieving reliable and stable switch power supply. A double-channel double-rate AC floating amplifier circuit for current detection has such a structure that one path of the circuit is used for amplifying a small-current signal to improve the precision of the small-current signal, and the other path has a widened application range and is used for amplifying large current. A resistive voltage-drop transformation isolation power detection floating amplifier circuit can reduce the power and size of the transformer by using resistive voltage drop, and the transformer mainly plays an isolation role; and a floating amplifier circuit is used for ensuring AC signals in a forward direction so as to facilitate input of the AC signals to a singlechip interface. The utility model is suitable for an intelligent power measurement and control device and an intelligent motor protection device.

Description

The electric intelligent measure and control device

Technical field

The utility model relates to the power supply using electricity automation and detects control, particularly electric intelligent measure and control device.

Background technology

Still have at present some power supply systems to use outmoded superseded conventional electrical appliance, the isolation of employing transformer pressure-reducing, existing problems are with the large heaviness of transformer pressure-reducing volume, and can only be used for connecting the AC power input, useful Switching Power Supply, interference free performance is poor, the too many coiling difficulty of the Secondary Winding of switching mode power supply transformer commonly used, affect complete machine stability, and the shortcoming such as volume is large, isolation effect is poor; Current sample detects the mutual inductor poor linearity, single channel is amplified directly affects usable range, has a strong impact on control accuracy; In measure and control device, voltage sample detection existing problems are that poor linearity, ac current signal input single-chip microcomputer are difficult to process, and have a strong impact on control accuracy.

Summary of the invention

The purpose of this utility model is for defects, and a kind of electric intelligent measure and control device is provided.Wherein multichannel is isolated the composite transformer switching power circuit more, two kinds of Power supplies of available alternating current-direct current, with previous switching mode power supply transformer multi-coil winding technique difficulty and affect power supply stability, now with composite transformer with many retarders of multichannel winding respectively on two transformers, overcome the defective that in the past existed, improve interference protection measures, realize reliable and stable Switching Power Supply; The double interchange floating of current detecting two-way amplifying circuit wherein, adopting the double amplification of two-way is one the tunnel little current signal to be amplified, and improves little current signal precision, another road expansion usable range is amplified large electric current; Wherein resistance step-down transformer isolation voltage detects the floating amplifying circuit, connect with transformer with resistance, the resistance step-down can reduce transformer efficiency and volume, and transformer mainly plays buffer action, exchange the floating amplification and make AC signal be operated in forward, can not make negative signal enter single-chip microcomputer.

the technical solution of the utility model is the electric intelligent measure and control device, comprise that multichannel isolates the composite transformer switching power circuit more, the double interchange floating of current detecting two-way amplifying circuit, resistance step-down transformer isolation voltage detects the floating amplifying circuit, it is characterized in that in the electric intelligent measure and control device that it is to adopt multichannel to isolate composite transformer and the special-purpose integrated package of Switching Power Supply and dual anti-interference choking coil that multichannel is isolated composite transformer high performance switch power circuit more more, can be used for two kinds of power supplies of alternating current-direct current, the double interchange floating of current detecting two-way amplifying circuit, adopting the double amplification of two-way is one the tunnel little current signal to be amplified, improve little current signal precision, another road enlarges usable range large electric current is amplified, resistance step-down transformer isolation voltage detects the floating amplifying circuit.connect with transformer with resistance, the resistance step-down can reduce transformer efficiency and volume, transformer mainly plays buffer action, exchanging the floating amplification makes AC signal be operated in forward, can not make negative signal enter single-chip microcomputer, particular circuit configurations is in the electric intelligent measure and control device multichannel to isolate the composite transformer switching power circuit is A phase power supply A more to connect respectively the coil winding LT1 of anti-interference power choke coil DL1 and the head of coil winding LT2 with B phase power supply B, the tail of coil winding LT1 connects the head of the coil winding LT3 of resistance DR0 and capacitor DC1 and anti-interference filter DL2, the other end of resistance DR0 is connected the other end and is connected anti-interference filtration the clamor head of coil winding LT4 of device DL2 and the tail of coil winding LT2 with capacitor DC1, the tail of coil winding LT3 connects the ac input end of capacitor DC2 and bridge rectifier DDB1, the tail of the other end connecting coil winding L T4 of another ac input end of bridge rectifier DDB1 and capacitor DC2, the positive output end of bridge rectifier DDB1 connects positive pole and the positive pole of transient suppressor DD1 and the tail of switching mode power supply transformer DT1 coil winding LT5 of electrolytic condenser DC15, the negative pole of transient suppressor DD1 connects the negative pole of diode DD2, coil winding LT5 head connects the positive pole of diode DD2 and the D end of capacitor DC3 and the special-purpose integrated package DU1 of Switching Power Supply, the other end contact resistance DR1 of capacitor DC3, the other end of resistance DR1 connects rectifier power source common port VV0, rectifier power source negative output terminal and electrolytic condenser DC15 negative pole and electrolytic condenser DC16 negative pole are connected the S end of integrated package DU1 and are connected together rectifier power source common port VV0 with Switching Power Supply, the head of the coil winding LT7 of switching mode power supply transformer DT1 connects the positive pole of diode DD3, the negative pole of diode DD3 connects collector and capacitor DC4 and the capacitor DC5 of photosensitive three utmost points of photoelectrical coupler DU2, capacitor DC4 is connected the other end and is connected tail with coil winding LT7 and is connected rectifier power source common port VV0 with capacitor DC6 with capacitor DC5, the C end of the special-purpose integrated package DU1 of Switching Power Supply connects emitter and the resistance DR2 of phototriode in photoelectrical coupler DU2, the other end of resistance DR2 connects the positive pole of electrolytic condenser DC16, the head of the coil winding LT8 of switching mode power supply transformer DT1 connects the positive pole of two utmost point DD6, the tail of coil winding LT8 connects common port V0, the cathode connecting diode DD6 negative pole of light emitting diode and anti-interference filter DL3 and electrolytic condenser DC27 positive pole and resistance DR5 in photoelectrical coupler DU2, the other end of resistance DR5 connects negative pole and the resistance DR6 of light emitting diode in photoelectrical coupler DU2, the other end continuous cropping of anti-interference filter DL3 is positive pole and resistance DR7 and the anti-interference filter DL4 that positive supply VDD2 connects electrolytic condenser DC28, the other end of resistance DR6 connects negative pole and the capacitor DC7 of adjustable reference power supply DU3, the other end of capacitor DC7 is connected the other end and is connected the control utmost point and the resistance DR8 of adjustable reference power supply DU3 with resistance DR7, the negative pole that electrolytic condenser DC27 negative pole is connected with electrolytic condenser is connected the other end and is connected with adjustable reference power supply DU3 and connects just together common port V0 with resistance DR8 with the DC6 other end, the other end of anti-interference filter DL4 connects positive pole and capacitor DC14 and the DR9 of electrolytic condenser DC29 as positive supply VDD1, the other end of resistance DR9 connects negative pole and the control utmost point of DU4 and the positive input terminal of operational amplifier DU7 of adjustable reference power supply DU4, the output terminal of the negative input end concatenation operation amplifier DU7 of operational amplifier DU7 is as positive supply VDD0, the positive pole of the negative pole of the other end of capacitor DC14 and electrolytic condenser DC29 and adjustable reference power supply DU4 connects common port V0 together, the head of the positive pole of the head connection diode DD4 of the coil winding LT6 of switching mode power supply transformer DT1 and the coil winding LT9 of switch transformer DT2, the negative pole of diode DD4 connects positive pole and the resistance DR3 of electrolytic condenser DC23, the other end of resistance DR3 is that positive supply VDD3 connects capacitor DC12 and the negative pole of stabilivolt DD10 and the positive pole of electrolytic condenser DC24, coil winding LT6 center head, the negative pole of electrolytic condenser DC23, the positive pole of electrolytic condenser DC25, the negative pole of electrolytic condenser DC24, the positive pole of electrolytic condenser DC26, the positive pole of stabilivolt DD10, the negative pole of stabilivolt DD11, capacitor DC12 is connected with capacitor DC13 and is connected common port V0, the tail of coil winding LT6 connects the negative pole of diode DD5 and the tail of coil winding LT9, the positive pole of diode DD5 connects negative pole and the resistance DR4 of electrolytic condenser DC25, the other end of resistance DR4 is that negative supply VCC connects the negative pole of electrolytic condenser DC26 and negative pole and the capacitor DC13 of diode DD11, the head of coil winding LT10 connects the positive pole of diode DD7, the negative pole of diode DD7 is the positive pole that the positive pole output of insulating power supply VD1 connects electrolytic condenser DC17, the tail of coil winding LT10 is the negative pole that the negative pole output of insulating power supply VD1 connects electrochemical capacitor DC17, the head of coil winding LT12 connects the positive pole of diode DD8, the negative pole of diode DD8 connects positive pole and capacitor DC8 and the integrated package of pressure-stabilizing DU5 input end of electrolytic condenser DC18, integrated package of pressure-stabilizing DU5 output terminal is the positive output end of insulating power supply VD2, the tail of coil winding LT12 is the negative pole that the negative output terminal of insulating power supply VD2 connects electrolytic condenser DC18, capacitor DC8, integrated package of pressure-stabilizing DU6 control end, the negative pole of electrolytic condenser DC19 and capacitor DC9, the head of coil winding LT11 connects the positive pole of diode DD9, the negative pole of diode DD9 connects positive pole and the anti-interference filter DL5 of electrolytic condenser DC20, the other end of anti-interference filter connects capacitor DC10 and the positive pole of electrolytic condenser DC21 and the input end of integrated package of pressure-stabilizing DU6, the output terminal of integrated package of pressure-stabilizing DU6 is the positive pole that the positive pole output of insulating power supply VD3 connects capacitor DC11 and electrolytic condenser DC22, the tail of coil winding LT11 is the negative pole that the negative pole output of insulating power supply VD3 connects electrolytic condenser DC20, capacitor DC10, the negative pole of electrolytic condenser DC21, integrated package of pressure-stabilizing DU6 control end, the negative pole of electrolytic condenser DC22 and capacitor DC11.

said electric intelligent measure and control device, it is characterized in that the double interchange floating of current detecting two-way amplifying circuit in the electric intelligent measure and control device is that three tunnel identical double amplifying circuits of current detecting two-way are by A phase current mutual inductor LA, B phase current mutual inductor LB, C phase current mutual inductor LC detects respectively A phase power supply, B phase power supply, the electric current of C phase power supply, amplify output A phase current signal one AI1 and A phase current signal two AI2 by operational amplifier ZU1 and operational amplifier ZU4 respectively, amplify defeated B phase current signal one BI1 and B phase current signal two BI2 by operational amplifier ZU2 and operational amplifier ZU5, amplify output C phase current signal one CI1 and C phase current signal two CI2 by operational amplifier ZU3 and operational amplifier ZU6, specifically A phase current mutual inductor LA one end connects anti-interference power choke coil ZL1 and two-way transient suppressor ZV1 and resistance ZR22, the other end of anti-interference power choke coil ZL1 connects capacitor ZC1 and capacitor ZC2 and resistance ZR2 and operational amplifier ZU4 positive input terminal, the other end concatenation operation amplifier ZU1 positive input terminal of resistance ZR2, operational amplifier ZU1 negative input end contact resistance ZR3 and resistance ZR4, the other end of A phase current mutual inductor LA, the other end of two-way transient suppressor ZV1, the other end of capacitor ZC1, the other end of capacitor ZC2 is connected the other end and is connected positive supply VDD0 with resistance ZR3, other end concatenation operation amplifier ZU1 output terminal and the resistance ZR5 of resistance ZR4, the other end of resistance ZR5 connects the positive pole of transient suppressor ZD1, capacitor ZC4, the positive pole of electrolytic condenser ZC19, the negative pole of diode ZD6 and A phase current signal one AI1, the negative pole of transient suppressor ZD1 connects VDD2, the other end of capacitor ZC4 is connected negative pole and is connected positive pole with diode ZD6 and connects common port V0 with electrolytic condenser ZC19, operational amplifier ZU4 negative input concatenation operation amplifier ZU4 output terminal and resistance ZR1, the other end of resistance ZR1 connects positive pole and A phase current signal two AI2 of capacitor ZC3 and electrolytic condenser ZC18, the other end of capacitor ZC3 is connected the other end and is connected common port V0 with electrolytic condenser ZC18, B phase current mutual inductor LB one end connects anti-interference power choke coil ZL2 and two-way transient suppressor ZV2 and resistance ZR23, the other end of anti-interference power choke coil ZL2 connects capacitor ZC5 and capacitor ZC6 and resistance ZR7 and operational amplifier ZU5 positive input terminal, the other end concatenation operation amplifier ZU2 positive input terminal of resistance ZR7, operational amplifier ZU2 negative input end contact resistance ZR8 and resistance ZR9, the other end of B phase current mutual inductor LB, the other end of two-way transient suppressor ZV2, the other end of capacitor ZC5, the other end of capacitor ZC6 is connected the other end and is connected positive supply VDD0 with resistance ZR8, other end concatenation operation amplifier ZU2 output terminal and the resistance ZR10 of resistance ZR9, the other end of resistance ZR10 connects the positive pole of transient suppressor ZD2, capacitor ZC8, the positive pole of electrolytic condenser ZC21, the negative pole of diode ZD7 and B phase current signal one BI1, the negative pole of transient suppressor ZD2 connects VDD2, the other end of capacitor ZC8 is connected negative pole and is connected positive pole with diode ZD7 and connects common port V0 with electrolytic condenser ZC21, operational amplifier ZU5 negative input concatenation operation amplifier ZU5 output terminal and resistance ZR6, the other end of resistance ZR6 connects capacitor ZC7 and electrolytic condenser ZC20 is anodal and B phase current signal two BI2, the other end of capacitor ZC7 is connected negative pole and is connected common port V0 with electrolytic condenser ZC20, C phase current mutual inductor LC one end connects anti-interference power choke coil ZL3 and two-way transient suppressor ZV3 and resistance ZR24, the other end of anti-interference power choke coil ZL3 connects capacitor ZC9 and capacitor ZC10 and resistance ZR12 and operational amplifier ZU6 positive input terminal, the other end concatenation operation amplifier ZU3 positive input terminal of resistance ZR12, operational amplifier ZU3 negative input end contact resistance ZR13 and resistance ZR14, the other end of C phase current mutual inductor LC, the other end of two-way transient suppressor ZV3, the other end of capacitor ZC9, the other end of capacitor ZC10 is connected the other end and is connected positive supply VDD0 with resistance ZR13, other end concatenation operation amplifier ZU3 output terminal and the resistance ZR15 of resistance ZR14, the other end of resistance ZR15 connects the positive pole of transient suppressor ZD3, capacitor ZC12, the positive pole of electrochemical capacitor ZC23, the negative pole of diode ZD8 and C phase current signal one CI1, the negative pole of transient suppressor ZD3 connects VDD2, the other end of capacitor ZC12 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC23, operational amplifier ZU6 negative input concatenation operation amplifier ZU6 output terminal and resistance ZR11, the other end of resistance ZR11 connects positive pole and the B phase current signal two BC I2 of capacitor ZC11 and electrolytic condenser ZC22, the another end of capacitor ZC11 is connected negative pole and is connected common port V0 with electrolytic condenser ZC22, ground current mutual inductor LN one end connects anti-interference power choke coil ZL4 and two-way transient suppressor ZV4, the other end of anti-interference power choke coil ZL4 connects capacitor ZC13 and capacitor ZC14 and resistance ZR17 and resistance ZR16, the other end concatenation operation amplifier ZU7 positive input terminal of resistance ZR17, operational amplifier ZU7 negative input end contact resistance ZR18 and resistance ZR19, the other end contact resistance ZR21 of ground current mutual inductor LCN, the other end of two-way transient suppressor ZV4, the other end of capacitor ZC13, the other end of capacitor ZC14 is connected the other end and is connected positive supply VDD0 with resistance ZR18, other end concatenation operation amplifier ZU7 output terminal and the resistance ZR20 of resistance ZR19, the other end of resistance ZR20 connects the positive pole of transient suppressor ZD4, capacitor ZC16, the positive pole of electrochemical capacitor ZC25, the negative pole of diode ZD9 and ground current signal one NI1, the negative pole of transient suppressor ZD4 connects VDD2, the other end of capacitor ZC16 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC25, the other end of resistance ZR16 connects positive pole and ground current signal two NI2 of capacitor ZC15 and electrolytic condenser ZC24, the other end of capacitor ZC15 is connected negative pole and is connected common port V0 with electrolytic condenser ZC24, the other end of resistance ZR21, the other end of resistance ZR22, the other end of the other end of resistance ZR23 and resistance ZR24 is positive input terminal and the resistance ZR25 of concatenation operation amplifier ZU8 together, output terminal and the resistance ZR27 of the other end concatenation operation amplifier ZU8 of resistance ZR25, the other end of resistance ZR26 connects VDD0, the other end of resistance ZR27 connects the positive pole of transient suppressor ZD5, capacitor ZC17, the positive pole of electrochemical capacitor ZC26, the negative pole of diode ZD10 and ground current signal one NI1, the negative pole of transient suppressor ZD5 connects VDD2, the other end of capacitor ZC17 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC26.

said electric intelligent measure and control device, it is characterized in that resistance step-down transformer isolation voltage in the electric intelligent measure and control device detect the floating amplifying circuit be three tunnel identical voltage detecting amplifying circuits respectively by resistance UR1 and resistance UR2 with resistance UR3 step-down be connected and connect respectively isolating transformer UTA armature winding tail and isolating transformer UTB armature winding tail and isolating transformer UTC armature winding tail, isolating transformer UTA armature winding head and isolating transformer UTB armature winding head and isolating transformer UTC armature winding head and ground connection zero power supply N connects, isolating transformer UTA secondary winding head connects two-way transient suppressor UV1 and resistance UR4 and resistance UR5, the positive input terminal of the other end concatenation operation amplifier UU1 of resistance UR5, the negative input end contact resistance UR6 of operational amplifier UU1 and resistance UR7, isolating transformer UTA secondary winding tail, the other end of two-way transient suppressor UV1, the other end of resistance UR4, the other end of resistance UR6 connects positive supply VDD0 together, other end concatenation operation amplifier UU1 output terminal and the resistance UR8 of resistance UR7, the other end of resistance UR8 connects positive pole and capacitor UC4 and the A phase voltage signal AV of electrolytic condenser UC1, while contact resistance UR19 and resistance UR25, the negative pole of electrolytic condenser UC1 is connected the other end and is connected common port V0 with capacitor UC4, isolating transformer UTB secondary winding head connects two-way transient suppressor UV2 and resistance UR9 and resistance UR10, the positive input terminal of the other end concatenation operation amplifier UU2 of resistance UR10, the negative input end contact resistance UR11 of operational amplifier UU2 and resistance UR12, isolating transformer UTB secondary winding tail, the other end of two-way transient suppressor UV2, the other end of resistance UR9, the other end of resistance UR11 connects positive supply VDD0 together, other end concatenation operation amplifier UU2 output terminal and the resistance UR13 of resistance UR12, the other end of resistance UR13 connects positive pole and capacitor UC5 and the B phase voltage signal BV of electrolytic condenser UC2, while contact resistance UR22 and resistance UR28, the negative pole of electrolytic condenser UC2 is connected the other end and is connected common port V0 with capacitor UC5, isolating transformer UTC secondary winding head connects two-way transient suppressor UV3 and resistance UR14 and resistance UR15, the positive input terminal of the other end concatenation operation amplifier UU3 of resistance UR15, the negative input end contact resistance UR16 of operational amplifier UU3 and resistance UR17, , isolating transformer UTC secondary winding tail, the other end of two-way transient suppressor UV3, the other end of resistance UR14, the other end of resistance U16 connects positive supply VDD0 together, other end concatenation operation amplifier UU3 output terminal and the resistance UR18 of resistance UR17, the other end of resistance UR18 connects positive pole and capacitor UC6 and the C phase voltage signal CV of electrolytic condenser UC3, while contact resistance UR30, the negative pole of electrolytic condenser UC3 is connected the other end and is connected common port V0 with capacitor UC6, the other end contact resistance UR20 of resistance UR19 and the positive input terminal of operational amplifier UU4, the negative input end of operational amplifier UU4 connects positive supply VDD0, the output terminal contact resistance UR21 of operational amplifier UU4 and the other end of resistance UR20 and electric capacity UC7 and A phase voltage are relatively held AVB, the other end of resistance UR21 connects positive supply VDD2, the other end of electric capacity UC7 connects common port V0, the other end contact resistance UR23 of resistance UR22 and the positive input terminal of operational amplifier UU5, the negative input end of operational amplifier UU5 connects positive supply VDD0, the output terminal contact resistance UR24 of operational amplifier UU5 and the other end of resistance UR23 and electric capacity UC8 and B phase voltage are relatively held BVB, the other end of resistance UR24 connects positive supply VDD2, the other end of electric capacity UC8 connects common port V0, the other end contact resistance UR26 of resistance UR25 and the positive input terminal of operational amplifier UU6, the negative input end of operational amplifier UU6 connects positive supply VDD0, the P1 end of the output terminal contact resistance UR27 of operational amplifier UU6 and the other end of resistance UR26 and electric capacity UC9 and d type flip flop UU8, the other end of resistance UR27 connects positive supply VDD2, the other end of electric capacity UC9 connects common port V0, the other end contact resistance UR29 of resistance UR28 and the positive input terminal of operational amplifier UU7, the other end of the negative input end contact resistance UR30 of operational amplifier UU7, the P2 end of the output terminal contact resistance UR31 of operational amplifier UU7 and the other end of resistance UR29 and electric capacity UC10 and d type flip flop UU9, the other end of resistance UR31 connects positive supply VDD2, the other end of electric capacity UC10 connects common port V0, the D1 of D Tong hair device UU8 end is connected D2 end connection positive supply VDD2 with d type flip flop UU9, the S1 of D Tong hair device UU8 end is connected S2 end connection common port V0 with d type flip flop UU9, the Q1 end of D Tong hair device UU8 connects the R2 end of d type flip flop UU9, the R1 of D Tong hair device UU8 end is connected Q2 end connection A phase current and is relatively held AIB with d type flip flop UU9, the Q2 end of d type flip flop UU9 connects BC phase voltage comparison signal BCVB.

The utility model is multichannel multi-separation switch power supply; circuit stability is good; has multi-functional, multi-usage; the double amplification of two-way is one the tunnel little current signal to be amplified; improve little current signal precision; another road enlarges usable range large electric current is amplified; the resistance step-down can reduce transformer efficiency and volume; transformer mainly plays buffer action; exchanging the floating amplification makes AC signal be operated in forward; can not make negative signal enter single-chip microcomputer, the present invention is applicable to various intelligent protections and control device, and particularly electric intelligent is surveyed and dug device.

Description of drawings

Fig. 1 multichannel is isolated composite transformer switching power circuit figure more

The double interchange floating of Fig. 2 current detecting two-way amplification circuit diagram

Fig. 3 resistance step-down transformer isolation voltage detects the floating amplification circuit diagram

A A phase power supply in Fig. 1, B B phase power supply, DB Bao Xian Silk, the DL1-DL5 anti-interference filter, the DT1-DT2 switching mode power supply transformer, the LT1-LT12 coil winding, the DDB1 bridge rectifier, the DD1 transient suppressor, the DD2-DD9 diode, the DD10-DD11 voltage stabilizing diode, the special-purpose integrated package of DU1 Switching Power Supply, the DU2 photoelectrical coupler, DU3-DU4 adjustable reference power supply, the DU5-DU6 integrated package of pressure-stabilizing, the DU7 operational amplifier, DR0-DR9 resistance, the DC1-DC14 capacitor, the DC15-DC29 electrolytic condenser, the VDD0-VDD3 positive supply, the VCC negative supply, the V0 common port, the VD1-VD3 insulating power supply, VV0 rectifier power source common port.

A A phase power supply in Fig. 2, B B phase power supply, C C phase power supply, LA A phase current mutual inductor, LB B phase current mutual inductor, LC C phase current mutual inductor, LN ground current mutual inductor, the anti-interference power choke coil of ZL1-ZL4, the two-way transient suppressor of ZV1-ZV4, the ZU1-ZU8 operational amplifier, ZR1-ZR27 resistance, the ZC1-ZC17 capacitor, the ZC18-ZC26 electrolytic condenser, the ZD1-ZD5 transient suppressor, the ZD6-ZD10 diode, the V0 common port, the VDD0 positive supply, the VDD2 positive supply, AI1A phase current signal one, AI2A phase current signal two, BI1B phase current signal one, BI2B phase current signal two, CI1C phase current signal one, CI2C phase current signal two, NI1 ground current signal one, NI2 ground current signal two, NI3 phase-sequence current signal.

A A phase power supply in Fig. 3, B B phase power supply, C C phase power supply, N ground connection zero power supply, the isolated transformer of UTA A, the isolated transformer of UTB B, the isolated transformer of UTA C, UR1-UR30 resistance, the UC1-UC3 electrolytic condenser, the UC4-UC10 capacitor, the two-way transient suppressor of UV1-UV3, the UU1-UU7 operational amplifier, UU8-UU9D touches puts device, the V0 common port, the VDD0 positive supply, the VDD2 positive supply, AV A phase voltage signal, BV B phase voltage signal, CV C phase voltage signal, AVB A phase voltage comparison signal, BVB B phase voltage comparison signal, BCVB BC phase voltage comparison signal, AIB A phase current relatively.

Embodiment

Fig. 1 is that multichannel is isolated the straight duplicate supply composite transformer switching power circuit figure of friendship more, adopt multichannel to isolate composite transformer and the special-purpose integrated package of Switching Power Supply and dual anti-interference choking coil more, can be used for two kinds of power supplies of alternating current-direct current, principle of work be A phase power supply A with B mutually power supply B respectively through anti-interference filter DL1, anti-interferencely grip the anti-jamming circuit that filter D L2 and resistance DR0, capacitor DC1, capacitor DC2 form and carry out filtering, bridge rectifier DDB1 rectification; Electrolytic condenser DC15 filtering, form the Switching Power Supply concussion by switching mode power supply transformer DT1, the special-purpose integrated package DU1 of Switching Power Supply, capacitor etc. and control, make the Switching Power Supply steady operation by adjustable reference power supply DU3 sampling feedback through the special-purpose integrated package DU1 of photoelectrical coupler DU2 gauge tap power supply and switching mode power supply transformer DT1; Positive supply VDD2 process anti-interference filter DL4 and capacitor DC14 and electrolytic condenser DC29 filtering are output as positive supply VDD1; Positive supply VDD1 again through the stabilized voltage supply that formed by adjustable reference power supply DU4 and operational amplifier DU7 again voltage stabilizing export high precision positive supply VDD0; The coil winding LT6 output minute two-way of switching mode power supply transformer DT1, one the tunnel through diode DD4 and diode DD5 rectification, through capacitor DC12, capacitor DC13, electrolytic condenser DC23, electrolytic condenser DC24, electrolytic condenser DC25, electrolytic condenser DC26, resistance DR3 and resistance DR4 filtering, through stabilivolt DD10 and stabilivolt DD11 voltage stabilizing, output positive supply VDD3 and negative supply VCC; Three road insulating power supplies are divided through composite transformer DT2 in another road of the coil winding LT6 output of switching mode power supply transformer DT1, and the first via is that coil winding LT10 outlet is through diode DD7 and electrolytic condenser DC17 rectifying and wave-filtering output isolated power supply VD1; The second the tunnel is that coil winding LT12 outlet is through diode DD8, capacitor DC8 and electrolytic condenser DC18 rectifying and wave-filtering, again through integrated package of pressure-stabilizing DU5, capacitor DC9 and electrolytic condenser DC19 voltage regulation filtering output isolated power supply VD2; Third Road is that coil winding LT11 outlet is through diode DD9, anti-interference filter, capacitor DC10, electrolytic condenser DC20 and electrolytic condenser DC21 rectifying and wave-filtering, again through integrated package of pressure-stabilizing DU5, capacitor DC11, electrolytic condenser DC22 and voltage regulation filtering output isolated power supply VD23.Embodiment is to connect with reference to Fig. 1 circuit theory diagrams, being end-to-end of coil winding LT1, coil winding LT2, coil winding LT3, coil winding LT4, coil winding LT5, coil winding LT6, coil winding LT7, coil winding LT8, coil winding LT9, coil winding LT10, coil winding LT11 and coil winding LT12 of noting anti-interference filter DL1, anti-interference filter DL2, switching mode power supply transformer DT1 and switching mode power supply transformer DT2 must be correct, and each coil winding is according to the working current consideration winding coil footpath of oneself.Insulating power supply VD1, insulating power supply VD2 are connected negative output terminal and must not be connected with common port V0 with insulating power supply VD3, also must not be connected with rectifier power source common port VV0, and common port V0 also must not be connected with rectifier power source common port VV0.

Fig. 2 is your schematic diagram of the double interchange floating of current detecting two-way amplifying circuit, principle of work is by A phase current mutual inductor LA, B phase current mutual inductor LB, C phase current mutual inductor LC detects respectively A phase power supply, B phase power supply, the electric current of C phase power supply, amplify output A phase current signal one AI1 and A phase current signal two AI2 by operational amplifier ZU1 and operational amplifier ZU4 respectively, amplify defeated B phase current signal one BI1 and B phase current signal two BI2 by operational amplifier ZU2 and operational amplifier ZU5, amplify output C phase current signal one CI1 and C phase current signal two CI2 by operational amplifier ZU3 and operational amplifier ZU6, detect electric leakage or ground current by ground current mutual inductor LN, amplify output ground current signal one NI1 and ground current signal two NI2 by operational amplifier ZU7, amplify output phase-sequence current signal one NI3 by operational amplifier ZU8.embodiment is that three tunnel identical double amplifying circuits of current detecting two-way are by A phase current mutual inductor LA, B phase current mutual inductor LB, C phase current mutual inductor LC detects respectively A phase power supply, B phase power supply, the electric current of C phase power supply, amplify output A phase current signal one AI1 and A phase current signal two AI2 by operational amplifier ZU1 and operational amplifier ZU4 respectively, amplify defeated B phase current signal one BI1 and B phase current signal two BI2 by operational amplifier ZU2 and operational amplifier ZU5, amplify output C phase current signal one CI1 and C phase current signal two CI2 by operational amplifier ZU3 and operational amplifier ZU6, specifically A phase current mutual inductor LA one end connects anti-interference power choke coil ZL1 and two-way transient suppressor ZV1 and resistance ZR22, the other end of anti-interference power choke coil ZL1 connects capacitor ZC1 and capacitor ZC2 and resistance ZR2 and operational amplifier ZU4 positive input terminal, the other end concatenation operation amplifier ZU1 positive input terminal of resistance ZR2, operational amplifier ZU1 negative input end contact resistance ZR3 and resistance ZR4, the other end of A phase current mutual inductor LA, the other end of two-way transient suppressor ZV1, the other end of capacitor ZC1, the other end of capacitor ZC2 is connected the other end and is connected positive supply VDD0 with resistance ZR3, other end concatenation operation amplifier ZU1 output terminal and the resistance ZR5 of resistance ZR4, the other end of resistance ZR5 connects the positive pole of transient suppressor ZD1, capacitor ZC4, the positive pole of electrolytic condenser ZC19, the negative pole of diode ZD6 and A phase current signal one A I1, the negative pole of transient suppressor ZD1 connects VDD2, the other end of capacitor ZC4 is connected negative pole and is connected positive pole with diode ZD6 and connects common port V0 with electrolytic condenser ZC19, operational amplifier ZU4 negative input concatenation operation amplifier ZU4 output terminal and resistance ZR1, the other end of resistance ZR1 connects positive pole and A phase current signal two AI2 of capacitor ZC3 and electrolytic condenser ZC18, the other end of capacitor ZC3 is connected the other end and is connected common port V0 with electrolytic condenser ZC18, B phase current mutual inductor LB one end connects anti-interference power choke coil ZL2 and two-way transient suppressor ZV2 and resistance ZR23, the other end of anti-interference power choke coil ZL2 connects capacitor ZC5 and capacitor ZC6 and resistance ZR7 and operational amplifier ZU5 positive input terminal, the other end concatenation operation amplifier ZU2 positive input terminal of resistance ZR7, operational amplifier ZU2 negative input end contact resistance ZR8 and resistance ZR9, the other end of B phase current mutual inductor LB, the other end of two-way transient suppressor ZV2, the other end of capacitor ZC5, the other end of capacitor ZC6 is connected the other end and is connected positive supply VDD0 with resistance ZR8, other end concatenation operation amplifier ZU2 output terminal and the resistance ZR10 of resistance ZR9, the other end of resistance ZR10 connects the positive pole of transient suppressor ZD2, capacitor ZC8, the positive pole of electrolytic condenser ZC21, the negative pole of diode ZD7 and B phase current signal one BI1, the negative pole of transient suppressor ZD2 connects VDD2, the other end of capacitor ZC8 is connected negative pole and is connected positive pole with diode ZD7 and connects common port V0 with electrolytic condenser ZC21, operational amplifier ZU5 negative input concatenation operation amplifier ZU5 output terminal and resistance ZR6, the other end of resistance ZR6 connects capacitor ZC7 and electrolytic condenser ZC20 is anodal and B phase current signal two BI2, the other end of capacitor ZC7 is connected negative pole and is connected common port V0 with electrolytic condenser ZC20, C phase current mutual inductor LC one end connects anti-interference power choke coil ZL3 and two-way transient suppressor ZV3 and resistance ZR24, the other end of anti-interference power choke coil ZL3 connects capacitor ZC9 and capacitor ZC10 and resistance ZR12 and operational amplifier ZU6 positive input terminal, the other end concatenation operation amplifier ZU3 positive input terminal of resistance ZR12, operational amplifier ZU3 negative input end contact resistance ZR13 and resistance ZR14, the other end of C phase current mutual inductor LC, the other end of two-way transient suppressor ZV3, the other end of capacitor ZC9, the other end of capacitor ZC10 is connected the other end and is connected positive supply VDD0 with resistance ZR13, other end concatenation operation amplifier ZU3 output terminal and the resistance ZR15 of resistance ZR14, the other end of resistance ZR15 connects the positive pole of transient suppressor ZD3, capacitor ZC12, the positive pole of electrochemical capacitor ZC23, the negative pole of diode ZD8 and C phase current signal one CI1, the negative pole of transient suppressor ZD3 connects VDD2, the other end of capacitor ZC12 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC23, operational amplifier ZU6 negative input concatenation operation amplifier ZU6 output terminal and resistance ZR11, the other end of resistance ZR11 connects positive pole and B phase current signal two BCI2 of capacitor ZC11 and electrolytic condenser ZC22, the another end of capacitor ZC11 is connected negative pole and is connected common port V0 with electrolytic condenser ZC22, ground current mutual inductor LN one end connects anti-interference power choke coil ZL4 and two-way transient suppressor ZV4, the other end of anti-interference power choke coil ZL4 connects capacitor ZC13 and capacitor ZC14 and resistance ZR17 and resistance ZR16, the other end concatenation operation amplifier ZU7 positive input terminal of resistance ZR17, operational amplifier ZU7 negative input end contact resistance ZR18 and resistance ZR19, the other end contact resistance ZR21 of ground current mutual inductor LCN, the other end of two-way transient suppressor ZV4, the other end of capacitor ZC13, the other end of capacitor ZC14 is connected the other end and is connected positive supply VDD0 with resistance ZR18, other end concatenation operation amplifier ZU7 output terminal and the resistance ZR20 of resistance ZR19, the other end of resistance ZR20 connects the positive pole of transient suppressor ZD4, capacitor ZC16, the positive pole of electrochemical capacitor ZC25, the negative pole of diode ZD9 and ground current signal one NI1, the negative pole of transient suppressor ZD4 connects VDD2, the other end of capacitor ZC16 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC25, the other end of resistance ZR16 connects positive pole and ground current signal two NI2 of capacitor ZC15 and electrolytic condenser ZC24, the other end of capacitor ZC15 is connected negative pole and is connected common port V0 with electrolytic condenser ZC24, the other end of resistance ZR21, the other end of resistance ZR22, the other end of the other end of resistance ZR23 and resistance ZR24 is positive input terminal and the resistance ZR25 of concatenation operation amplifier ZU8 together, output terminal and the resistance ZR27 of the other end concatenation operation amplifier ZU8 of resistance ZR25, the other end of resistance ZR26 connects VDD0, the other end of resistance ZR27 connects the positive pole of transient suppressor ZD5, capacitor ZC17, the positive pole of electrochemical capacitor ZC26, the negative pole of diode ZD10 and ground current signal one NI1, the negative pole of transient suppressor ZD5 connects VDD2, the other end of capacitor ZC17 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC26.

Fig. 3 is that resistance step-down transformer isolation voltage detects floating amplifying circuit schematic diagram, principle of work is that power detection signal is sampled through resistance UR1 and resistance UR2 and electric UR3 step-down by three-phase supply, the three-phase voltage signal one tunnel that the floating amplifying circuit that is comprised of through operational amplifier isolating transformer UTA and isolating transformer UTB and isolating transformer UTC isolation amplifies output directly enters single-chip microcomputer, and the comparison signal that the comparator circuit that another road forms via operational amplifier and d type flip flop is exported enters single-chip microcomputer again.embodiment be three tunnel identical voltage detecting amplifying circuits respectively by resistance UR1 and resistance UR2 with resistance UR3 step-down be connected and connect respectively isolating transformer UTA armature winding tail and isolating transformer UTB armature winding tail and isolating transformer UTC armature winding tail, isolating transformer UTA armature winding head and isolating transformer UTB armature winding head and isolating transformer UTC armature winding head and ground connection zero power supply N connects, isolating transformer UTA secondary winding head connects two-way transient suppressor UV1 and resistance UR4 and resistance UR5, the positive input terminal of the other end concatenation operation amplifier UU1 of resistance UR5, the negative input end contact resistance UR6 of operational amplifier UU1 and resistance UR7, isolating transformer UTA secondary winding tail, the other end of two-way transient suppressor UV1, the other end of resistance UR4, the other end of resistance UR6 connects positive supply VDD0 together, other end concatenation operation amplifier UU1 output terminal and the resistance UR8 of resistance UR7, the other end of resistance UR8 connects positive pole and capacitor UC4 and the A phase voltage signal AV of electrolytic condenser UC1, while contact resistance UR19 and resistance UR25, the negative pole of electrolytic condenser UC1 is connected the other end and is connected common port V0 with capacitor UC4, isolating transformer UTB secondary winding head connects two-way transient suppressor UV2 and resistance UR9 and resistance UR10, the positive input terminal of the other end concatenation operation amplifier UU2 of resistance UR10, the negative input end contact resistance UR11 of operational amplifier UU2 and resistance UR12, isolating transformer UTB secondary winding tail, the other end of two-way transient suppressor UV2, the other end of resistance UR9, the other end of resistance UR11 connects positive supply VDD0 together, other end concatenation operation amplifier UU2 output terminal and the resistance UR13 of resistance UR12, the other end of resistance UR13 connects positive pole and capacitor UC5 and the B phase voltage signal BV of electrolytic condenser UC2, while contact resistance UR22 and resistance UR28, the negative pole of electrolytic condenser UC2 is connected the other end and is connected common port V0 with capacitor UC5, isolating transformer UTC secondary winding head connects two-way transient suppressor UV3 and resistance UR14 and resistance UR15, the positive input terminal of the other end concatenation operation amplifier UU3 of resistance UR15, the negative input end contact resistance UR16 of operational amplifier UU3 and resistance UR17, , isolating transformer UTC secondary winding tail, the other end of two-way transient suppressor UV3, the other end of resistance UR14, the other end of resistance U16 connects positive supply VDD0 together, other end concatenation operation amplifier UU3 output terminal and the resistance UR18 of resistance UR17, the other end of resistance UR18 connects positive pole and capacitor UC6 and the C phase voltage signal CV of electrolytic condenser UC3, while contact resistance UR30, the negative pole of electrolytic condenser UC3 is connected the other end and is connected common port V0 with capacitor UC6, the other end contact resistance UR20 of resistance UR19 and the positive input terminal of operational amplifier UU4, the negative input end of operational amplifier UU4 connects positive supply VDD0, the output terminal contact resistance UR21 of operational amplifier UU4 and the other end of resistance UR20 and electric capacity UC7 and A phase voltage are relatively held AVB, the other end of resistance UR21 connects positive supply VDD2, the other end of electric capacity UC7 connects common port V0, the other end contact resistance UR23 of resistance UR22 and the positive input terminal of operational amplifier UU5, the negative input end of operational amplifier UU5 connects positive supply VDD0, the output terminal contact resistance UR24 of operational amplifier UU5 and the other end of resistance UR23 and electric capacity UC8 and B phase voltage are relatively held BVB, the other end of resistance UR24 connects positive supply VDD2, the other end of electric capacity UC8 connects common port V0, the other end contact resistance UR26 of resistance UR25 and the positive input terminal of operational amplifier UU6, the negative input end of operational amplifier UU6 connects positive supply VDD0, the P1 end of the output terminal contact resistance UR27 of operational amplifier UU6 and the other end of resistance UR26 and electric capacity UC9 and d type flip flop UU8, the other end of resistance UR27 connects positive supply VDD2, the other end of electric capacity UC9 connects common port V0, the other end contact resistance UR29 of resistance UR28 and the positive input terminal of operational amplifier UU7, the other end of the negative input end contact resistance UR30 of operational amplifier UU7, the P2 end of the output terminal contact resistance UR31 of operational amplifier UU7 and the other end of resistance UR29 and electric capacity UC10 and d type flip flop UU9, the other end of resistance UR31 connects positive supply VDD2, the other end of electric capacity UC10 connects common port V0, the D1 of D Tong hair device UU8 end is connected D2 end connection positive supply VDD2 with d type flip flop UU9, the S1 of D Tong hair device UU8 end is connected S2 end connection common port V0 with d type flip flop UU9, the Q1 end of D Tong hair device UU8 connects the R2 end of d type flip flop UU9, the R1 of D Tong hair device UU8 end is connected Q2 end connection A phase current and is relatively held AIB with d type flip flop UU9, the Q2 end of d type flip flop UU9 connects BC phase voltage comparison signal BCVB.

Claims

1. electric intelligent measure and control device, comprise that multichannel isolates the composite transformer switching power circuit more, the double interchange floating of current detecting two-way amplifying circuit, resistance step-down transformer isolation voltage detects the floating amplifying circuit, it is characterized in that in the electric intelligent measure and control device that it is to adopt multichannel to isolate composite transformer and the special-purpose integrated package of Switching Power Supply and dual anti-interference choking coil that multichannel is isolated composite transformer high performance switch power circuit more more, can be used for two kinds of power supplies of alternating current-direct current, the double interchange floating of current detecting two-way amplifying circuit, adopting the double amplification of two-way is one the tunnel little current signal to be amplified, improve little current signal precision, another road enlarges usable range large electric current is amplified, resistance step-down transformer isolation voltage detects the floating amplifying circuit, connect with transformer with resistance, the resistance step-down can reduce transformer efficiency and volume, transformer mainly plays buffer action, exchanging the floating amplification makes AC signal be operated in forward, can not make negative signal enter single-chip microcomputer, particular circuit configurations is in the electric intelligent measure and control device multichannel to isolate the composite transformer switching power circuit is A phase power supply A more to connect respectively the coil winding LT1 of anti-interference power choke coil DL1 and the head of coil winding LT2 with B phase power supply B, the tail of coil winding LT1 connects the head of the coil winding LT3 of resistance DR0 and capacitor DC1 and anti-interference filter DL2, the other end of resistance DR0 is connected the other end and is connected anti-interference filtration the clamor head of coil winding LT4 of device DL2 and the tail of coil winding LT2 with capacitor DC1, the tail of coil winding LT3 connects the ac input end of capacitor DC2 and bridge rectifier DDB1, the tail of the other end connecting coil winding L T4 of another ac input end of bridge rectifier DDB1 and capacitor DC2, the positive output end of bridge rectifier DDB1 connects positive pole and the positive pole of transient suppressor DD1 and the tail of switching mode power supply transformer DT1 coil winding LT5 of electrolytic condenser DC15, the negative pole of transient suppressor DD1 connects the negative pole of diode DD2, coil winding LT5 head connects the positive pole of diode DD2 and the D end of capacitor DC3 and the special-purpose integrated package DU1 of Switching Power Supply, the other end contact resistance DR1 of capacitor DC3, the other end of resistance DR1 connects rectifier power source common port VV0, rectifier power source negative output terminal and electrolytic condenser DC15 negative pole and electrolytic condenser DC16 negative pole are connected the S end of integrated package DU1 and are connected together rectifier power source common port VV0 with Switching Power Supply, the head of the coil winding LT7 of switching mode power supply transformer DT1 connects the positive pole of diode DD3, the negative pole of diode DD3 connects collector and capacitor DC4 and the capacitor DC5 of photosensitive three utmost points of photoelectrical coupler DU2, capacitor DC4 is connected the other end and is connected tail with coil winding LT7 and is connected rectifier power source common port VV0 with capacitor DC6 with capacitor DC5, the C end of the special-purpose integrated package DU1 of Switching Power Supply connects emitter and the resistance DR2 of phototriode in photoelectrical coupler DU2, the other end of resistance DR2 connects the positive pole of electrolytic condenser DC16, the head of the coil winding LT8 of switching mode power supply transformer DT1 connects the positive pole of two utmost point DD6, the tail of coil winding LT8 connects common port V0, the cathode connecting diode DD6 negative pole of light emitting diode and anti-interference filter DL3 and electrolytic condenser DC27 positive pole and resistance DR5 in photoelectrical coupler DU2, the other end of resistance DR5 connects negative pole and the resistance DR6 of light emitting diode in photoelectrical coupler DU2, the other end continuous cropping of anti-interference filter DL3 is positive pole and resistance DR7 and the anti-interference filter DL4 that positive supply VDD2 connects electrolytic condenser DC28, the other end of resistance DR6 connects negative pole and the capacitor DC7 of adjustable reference power supply DU3, the other end of capacitor DC7 is connected the other end and is connected the control utmost point and the resistance DR8 of adjustable reference power supply DU3 with resistance DR7, the negative pole that electrolytic condenser DC27 negative pole is connected with electrolytic condenser is connected the other end and is connected with adjustable reference power supply DU3 and connects just together common port V0 with resistance DR8 with the DC6 other end, the other end of anti-interference filter DL4 connects positive pole and capacitor DC14 and the DR9 of electrolytic condenser DC29 as positive supply VDD1, the other end of resistance DR9 connects negative pole and the control utmost point of DU4 and the positive input terminal of operational amplifier DU7 of adjustable reference power supply DU4, the output terminal of the negative input end concatenation operation amplifier DU7 of operational amplifier DU7 is as positive supply VDD0, the positive pole of the negative pole of the other end of capacitor DC14 and electrolytic condenser DC29 and adjustable reference power supply DU4 connects common port V0 together, the head of the positive pole of the head connection diode DD4 of the coil winding LT6 of switching mode power supply transformer DT1 and the coil winding LT9 of switch transformer DT2, the negative pole of diode DD4 connects positive pole and the resistance DR3 of electrolytic condenser DC23, the other end of resistance DR3 is that positive supply VDD3 connects capacitor DC12 and the negative pole of stabilivolt DD10 and the positive pole of electrolytic condenser DC24, coil winding LT6 center head, the negative pole of electrolytic condenser DC23, the positive pole of electrolytic condenser DC25, the negative pole of electrolytic condenser DC24, the positive pole of electrolytic condenser DC26, the positive pole of stabilivolt DD10, the negative pole of stabilivolt DD11, capacitor DC12 is connected with capacitor DC13 and is connected common port V0, the tail of coil winding LT6 connects the negative pole of diode DD5 and the tail of coil winding LT9, the positive pole of diode DD5 connects negative pole and the resistance DR4 of electrolytic condenser DC25, the other end of resistance DR4 is that negative supply VCC connects the negative pole of electrolytic condenser DC26 and negative pole and the capacitor DC13 of diode DD11, the head of coil winding LT10 connects the positive pole of diode DD7, the negative pole of diode DD7 is the positive pole that the positive pole output of insulating power supply VD1 connects electrolytic condenser DC17, the tail of coil winding LT10 is the negative pole that the negative pole output of insulating power supply VD1 connects electrochemical capacitor DC17, the head of coil winding LT12 connects the positive pole of diode DD8, the negative pole of diode DD8 connects positive pole and capacitor DC8 and the integrated package of pressure-stabilizing DU5 input end of electrolytic condenser DC18, integrated package of pressure-stabilizing DU5 output terminal is the positive output end of insulating power supply VD2, the tail of coil winding LT12 is the negative pole that the negative output terminal of insulating power supply VD2 connects electrolytic condenser DC18, capacitor DC8, integrated package of pressure-stabilizing DU6 control end, the negative pole of electrolytic condenser DC19 and capacitor DC9, the head of coil winding LT11 connects the positive pole of diode DD9, the negative pole of diode DD9 connects positive pole and the anti-interference filter DL5 of electrolytic condenser DC20, the other end of anti-interference filter connects capacitor DC10 and the positive pole of electrolytic condenser DC21 and the input end of integrated package of pressure-stabilizing DU6, the output terminal of integrated package of pressure-stabilizing DU6 is the positive pole that the positive pole output of insulating power supply VD3 connects capacitor DC11 and electrolytic condenser DC22, the tail of coil winding LT11 is the negative pole that the negative pole output of insulating power supply VD3 connects electrolytic condenser DC20, capacitor DC10, the negative pole of electrolytic condenser DC21, integrated package of pressure-stabilizing DU6 control end, the negative pole of electrolytic condenser DC22 and capacitor DC11.

2. said electric intelligent measure and control device according to claim 1, it is characterized in that the double interchange floating of current detecting two-way amplifying circuit in the electric intelligent measure and control device is that three tunnel identical double amplifying circuits of current detecting two-way are by A phase current mutual inductor LA, B phase current mutual inductor LB, C phase current mutual inductor LC detects respectively A phase power supply, B phase power supply, the electric current of C phase power supply, amplify output A phase current signal one AI1 and A phase current signal two AI2 by operational amplifier ZU1 and operational amplifier ZU4 respectively, amplify defeated B phase current signal one BI1 and B phase current signal two BI2 by operational amplifier ZU2 and operational amplifier ZU5, amplify output C phase current signal one CI1 and C phase current signal two CI2 by operational amplifier ZU3 and operational amplifier ZU6, specifically A phase current mutual inductor LA one end connects anti-interference power choke coil ZL1 and two-way transient suppressor ZV1 and resistance ZR22, the other end of anti-interference power choke coil ZL1 connects capacitor ZC1 and capacitor ZC2 and resistance ZR2 and operational amplifier ZU4 positive input terminal, the other end concatenation operation amplifier ZU1 positive input terminal of resistance ZR2, operational amplifier ZU1 negative input end contact resistance ZR3 and resistance ZR4, the other end of A phase current mutual inductor LA, the other end of two-way transient suppressor ZV1, the other end of capacitor ZC1, the other end of capacitor ZC2 is connected the other end and is connected positive supply VDD0 with resistance ZR3, other end concatenation operation amplifier ZU1 output terminal and the resistance ZR5 of resistance ZR4, the other end of resistance ZR5 connects the positive pole of transient suppressor ZD1, capacitor ZC4, the positive pole of electrolytic condenser ZC19, the negative pole of diode ZD6 and A phase current signal one AI1, the negative pole of transient suppressor ZD1 connects VDD2, the other end of capacitor ZC4 is connected negative pole and is connected positive pole with diode ZD6 and connects common port V0 with electrolytic condenser ZC19, operational amplifier ZU4 negative input concatenation operation amplifier ZU4 output terminal and resistance ZR1, the other end of resistance ZR1 connects positive pole and A phase current signal two AI2 of capacitor ZC3 and electrolytic condenser ZC18, the other end of capacitor ZC3 is connected the other end and is connected common port V0 with electrolytic condenser ZC18, B phase current mutual inductor LB one end connects anti-interference power choke coil ZL2 and two-way transient suppressor ZV2 and resistance ZR23, the other end of anti-interference power choke coil ZL2 connects capacitor ZC5 and capacitor ZC6 and resistance ZR7 and operational amplifier ZU5 positive input terminal, the other end concatenation operation amplifier ZU2 positive input terminal of resistance ZR7, operational amplifier ZU2 negative input end contact resistance ZR8 and resistance ZR9, the other end of B phase current mutual inductor LB, the other end of two-way transient suppressor ZV2, the other end of capacitor ZC5, the other end of capacitor ZC6 is connected the other end and is connected positive supply VDD0 with resistance ZR8, other end concatenation operation amplifier ZU2 output terminal and the resistance ZR10 of resistance ZR9, the other end of resistance ZR10 connects the positive pole of transient suppressor ZD2, capacitor ZC8, the positive pole of electrolytic condenser ZC21, the negative pole of diode ZD7 and B phase current signal one BI1, the negative pole of transient suppressor ZD2 connects VDD2, the other end of capacitor ZC8 is connected negative pole and is connected positive pole with diode ZD7 and connects common port V0 with electrolytic condenser ZC21, operational amplifier ZU5 negative input concatenation operation amplifier ZU5 output terminal and resistance ZR6, the other end of resistance ZR6 connects capacitor ZC7 and electrolytic condenser ZC20 is anodal and B phase current signal two BI2, the other end of capacitor ZC7 is connected negative pole and is connected common port V0 with electrolytic condenser ZC20, C phase current mutual inductor LC one end connects anti-interference power choke coil ZL3 and two-way transient suppressor ZV3 and resistance ZR24, the other end of anti-interference power choke coil ZL3 connects capacitor ZC9 and capacitor ZC10 and resistance ZR12 and operational amplifier ZU6 positive input terminal, the other end concatenation operation amplifier ZU3 positive input terminal of resistance ZR12, operational amplifier ZU3 negative input end contact resistance ZR13 and resistance ZR14, the other end of C phase current mutual inductor LC, the other end of two-way transient suppressor ZV3, the other end of capacitor ZC9, the other end of capacitor ZC10 is connected the other end and is connected positive supply VDD0 with resistance ZR13, other end concatenation operation amplifier ZU3 output terminal and the resistance ZR15 of resistance ZR14, the other end of resistance ZR15 connects the positive pole of transient suppressor ZD3, electric capacity one device ZC12, the positive pole of electrochemical capacitor ZC23, the negative pole of diode ZD8 and C phase current signal one CI1, the negative pole of transient suppressor ZD3 connects VDD2, the other end of capacitor ZC12 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC23, operational amplifier ZU6 negative input concatenation operation amplifier ZU6 output terminal and resistance ZR11, the other end of resistance ZR11 connects positive pole and B phase current signal two BCI2 of capacitor ZC11 and electrolytic condenser ZC22, the another end of capacitor ZC11 is connected negative pole and is connected common port V0 with electrolytic condenser ZC22, ground current mutual inductor LN one end connects anti-interference power choke coil ZL4 and two-way transient suppressor ZV4, the other end of anti-interference power choke coil ZL4 connects capacitor ZC13 and capacitor ZC14 and resistance ZR17 and resistance ZR16, the other end concatenation operation amplifier ZU7 positive input terminal of resistance ZR17, operational amplifier ZU7 negative input end contact resistance ZR18 and resistance ZR19, the other end contact resistance ZR21 of ground current mutual inductor LCN, the other end of two-way transient suppressor ZV4, the other end of capacitor ZC13, the other end of capacitor ZC14 is connected the other end and is connected positive supply VDD0 with resistance ZR18, other end concatenation operation amplifier ZU7 output terminal and the resistance ZR20 of resistance ZR19, the other end of resistance ZR20 connects the positive pole of transient suppressor ZD4, capacitor ZC16, the positive pole of electrochemical capacitor ZC25, the negative pole of diode ZD9 and ground current signal one NI1, the negative pole of transient suppressor ZD4 connects VDD2, the other end of capacitor ZC16 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC25, the other end of resistance ZR16 connects positive pole and ground current signal two NI2 of capacitor ZC15 and electrolytic condenser ZC24, the other end of capacitor ZC15 is connected negative pole and is connected common port V0 with electrolytic condenser ZC24, the other end of resistance ZR21, the other end of resistance ZR22, the other end of the other end of resistance ZR23 and resistance ZR24 is positive input terminal and the resistance ZR25 of concatenation operation amplifier ZU8 together, output terminal and the resistance ZR27 of the other end concatenation operation amplifier ZU8 of resistance ZR25, the other end of resistance ZR26 connects VDD0, the other end of resistance ZR27 connects the positive pole of transient suppressor ZD5, capacitor ZC17, the positive pole of electrochemical capacitor ZC26, the negative pole of diode ZD10 and ground current signal one NI1, the negative pole of transient suppressor ZD5 connects VDD2, the other end of capacitor ZC17 is connected the positive pole that negative pole is connected with diode and is connected common port V0 with electrolytic condenser ZC26.

3. said electric intelligent measure and control device according to claim 1, it is characterized in that resistance step-down transformer isolation voltage in the electric intelligent measure and control device detect the floating amplifying circuit be three tunnel identical voltage detecting amplifying circuits respectively by resistance UR1 and resistance UR2 with resistance UR3 step-down be connected and connect respectively isolating transformer UTA armature winding tail and isolating transformer UTB armature winding tail and isolating transformer UTC armature winding tail, isolating transformer UTA armature winding head and isolating transformer UTB armature winding head and isolating transformer UTC armature winding head and ground connection zero power supply N connects, isolating transformer UTA secondary winding head connects two-way transient suppressor UV1 and resistance UR4 and resistance UR5, the positive input terminal of the other end concatenation operation amplifier UU1 of resistance UR5, the negative input end contact resistance UR6 of operational amplifier UU1 and resistance UR7, isolating transformer UTA secondary winding tail, the other end of two-way transient suppressor UV1, the other end of resistance UR4, the other end of resistance UR6 connects positive supply VDD0 together, other end concatenation operation amplifier UU1 output terminal and the resistance UR8 of resistance UR7, the other end of resistance UR8 connects positive pole and capacitor UC4 and the A phase voltage signal AV of electrolytic condenser UC1, while contact resistance UR19 and resistance UR25, the negative pole of electrolytic condenser UC1 is connected the other end and is connected common port V0 with capacitor UC4, isolating transformer UTB secondary winding head connects two-way transient suppressor UV2 and resistance UR9 and resistance UR10, the positive input terminal of the other end concatenation operation amplifier UU2 of resistance UR10, the negative input end contact resistance UR11 of operational amplifier UU2 and resistance UR12, isolating transformer UTB secondary winding tail, the other end of two-way transient suppressor UV2, the other end of resistance UR9, the other end of resistance UR11 connects positive supply VDD0 together, other end concatenation operation amplifier UU2 output terminal and the resistance UR13 of resistance UR12, the other end of resistance UR13 connects positive pole and capacitor UC5 and the B phase voltage signal BV of electrolytic condenser UC2, while contact resistance UR22 and resistance UR28, the negative pole of electrolytic condenser UC2 is connected the other end and is connected common port V0 with capacitor UC5, isolating transformer UTC secondary winding head connects two-way transient suppressor UV3 and resistance UR14 and resistance UR15, the positive input terminal of the other end concatenation operation amplifier UU3 of resistance UR15, the negative input end contact resistance UR16 of operational amplifier UU3 and resistance UR17, isolating transformer UTC secondary winding tail, the other end of two-way transient suppressor UV3, the other end of resistance UR14, the other end of resistance U16 connects positive supply VDD0 together, other end concatenation operation amplifier UU3 output terminal and the resistance UR18 of resistance UR17, the other end of resistance UR18 connects positive pole and capacitor UC6 and the C phase voltage signal CV of electrolytic condenser UC3, while contact resistance UR30, the negative pole of electrolytic condenser UC3 is connected the other end and is connected common port V0 with capacitor UC6, the other end contact resistance UR20 of resistance UR19 and the positive input terminal of operational amplifier UU4, the negative input end of operational amplifier UU4 connects positive supply VDD0, the output terminal contact resistance UR21 of operational amplifier UU4 and the other end of resistance UR20 and electric capacity UC7 and A phase voltage are relatively held AVB, the other end of resistance UR21 connects positive supply VDD2, the other end of electric capacity UC7 connects common port V0, the other end contact resistance UR23 of resistance UR22 and the positive input terminal of operational amplifier UU5, the negative input end of operational amplifier UU5 connects positive supply VDD0, the output terminal contact resistance UR24 of operational amplifier UU5 and the other end of resistance UR23 and electric capacity UC8 and B phase voltage are relatively held BVB, the other end of resistance UR24 connects positive supply VDD2, the other end of electric capacity UC8 connects common port V0, the other end contact resistance UR26 of resistance UR25 and the positive input terminal of operational amplifier UU6, the negative input end of operational amplifier UU6 connects positive supply VDD0, the P1 end of the output terminal contact resistance UR27 of operational amplifier UU6 and the other end of resistance UR26 and electric capacity UC9 and d type flip flop UU8, the other end of resistance UR27 connects positive supply VDD2, the other end of electric capacity UC9 connects common port V0, the other end contact resistance UR29 of resistance UR28 and the positive input terminal of operational amplifier UU7, the other end of the negative input end contact resistance UR30 of operational amplifier UU7, the P2 end of the output terminal contact resistance UR31 of operational amplifier UU7 and the other end of resistance UR29 and electric capacity UC10 and d type flip flop UU9, the other end of resistance UR31 connects positive supply VDD2, the other end of electric capacity UC10 connects common port V0, the D1 of D Tong hair device UU8 end is connected D2 end connection positive supply VDD2 with d type flip flop UU9, the S1 of D Tong hair device UU8 end is connected S2 end connection common port V0 with d type flip flop UU9, the Q1 end of D Tong hair device UU8 connects the R2 end of d type flip flop UU9, the R1 of D Tong hair device UU8 end is connected Q2 end connection A phase current and is relatively held A I B with d type flip flop UU9, the Q2 end of d type flip flop UU9 connects BC phase voltage comparison signal BCVB.