CN100459012C - Combined intelligent AC control and protector - Google Patents

Combined intelligent AC control and protector Download PDF

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CN100459012C
CN100459012C CNB2005101252941A CN200510125294A CN100459012C CN 100459012 C CN100459012 C CN 100459012C CN B2005101252941 A CNB2005101252941 A CN B2005101252941A CN 200510125294 A CN200510125294 A CN 200510125294A CN 100459012 C CN100459012 C CN 100459012C
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control
protector
circuit
chip microcomputer
contact
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CN1841614A (en
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张培铭
江和
许志红
郑昕
鲍光海
吴功祥
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Fuzhou University
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Fuzhou University
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Abstract

A combined intelligent AC control and protector comprises three independent AC control and protector electromagnetic mechanisms and three independent AC control and protector contact arc extinguishing devices; each alternating current control and protector electromagnetic mechanism corresponds to one alternating current control and protector contact arc extinguishing device; three current sensors are respectively sleeved on the static contact bridge of the three alternating current control and protector contact arc extinguishing devices. It can be switched on near the zero point of three-phase voltage; when normal breaking or faults such as overload, phase failure, locked rotor, overvoltage, undervoltage, reverse phase sequence and the like are required, the three-phase current can be accurately opened when approaching zero crossing, so that the energy of the broken electric arc is less, and the broken arc with less arc or without arc can be realized; when short-circuit fault occurs, the contact can be opened quickly to cut off short-circuit current.

Description

组合式智能交流控制与保护器 Combined intelligent AC control and protector

技术领域：Technical field:

本发明涉及一种组合式交流控制与保护器。The invention relates to a combined AC control and protector.

背景技术：Background technique:

许志红、张培铭发表在《电工电能新技术》2002年第4期的“智能交流接触器零电流分断控制技术”一文及实用新型专利“一种智能交流接触器”(专利号为ZL00214192.2)介绍了采用微处理器控制三相触头不同步的智能交流接触器方案，实现了三相触头电流均在过零附近分断。但是该方案从结构上实现各种容量交流接触器一相触头与另二相触头分断不同步的时间差接近5ms对设计、工艺、实验都有一定要求，尤其是它还不具有零电压接通功能与各种保护功能。Xu Zhihong and Zhang Peiming published the article "Intelligent AC Contactor Zero-Current Breaking Control Technology" published in "New Technology of Electric Engineering and Energy" Issue 4, 2002, and introduced the utility model patent "A Smart AC Contactor" (Patent No. ZL00214192.2) An intelligent AC contactor scheme using a microprocessor to control the asynchrony of the three-phase contacts is realized, and the currents of the three-phase contacts are all broken near zero crossing. However, this scheme realizes structurally that the time difference between one phase contact and the other two phase contacts of AC contactors of various capacities is close to 5ms, which has certain requirements for design, process and experiment, especially it does not have zero voltage contact. communication function and various protection functions.

发明内容：Invention content:

本发明的目的就是提供一种组合式智能交流控制与保护器，本电器通过单片机控制装置能进行三台交流控制与保护器触头灭弧装置的触头电压零点附近接通，电流接近过零时打开，在短路故障发生时触头快速打开，切断短路电流。具有控制与保护综合功能。The purpose of the present invention is to provide a combined intelligent AC control and protector. The electric appliance can be connected to three AC control devices and the contact arc extinguishing device of the protector near the zero point of the contact voltage through the single-chip microcomputer control device, and the current is close to zero. When a short-circuit fault occurs, the contacts open quickly to cut off the short-circuit current. It has comprehensive functions of control and protection.

本发明的目的是这样实现的，它包括单片机控制装置、交流控制与保护器电磁机构、交流控制与保护器触头灭弧装置、电流传感器，其特征在于：本发明包括：三台独立的交流控制与保护器电磁机构，三台独立的交流控制与保护器触头灭弧装置；每台的交流控制与保护器电磁机构对应一台的交流控制与保护器触头灭弧装置，每一台的交流控制与保护器电磁机构均包括一组的动铁芯、静铁芯、线圈、反力弹簧；每台交流控制与保护器触头灭弧装置均包括一组的动触桥、动触头、触头支架、静触头、静触桥、灭弧罩。动触桥与动触头安装固定在触头支架上，触头支架安装在动铁芯上，每台交流控制与保护器触头灭弧装置只有一相触头，仅接通分断一相电流；在其中每台交流控制与保护器触头灭弧装置的静触桥上均套有电流传感器。The purpose of the present invention is achieved in that it includes a single-chip microcomputer control device, an AC control and protector electromagnetic mechanism, an AC control and protector contact arc extinguishing device, and a current sensor. It is characterized in that: the present invention includes: three independent AC Control and protector electromagnetic mechanism, three independent AC control and protector contact arc extinguishing devices; each AC control and protector electromagnetic mechanism corresponds to one AC control and protector contact arc extinguishing device, each The electromagnetic mechanism of the AC control and protector includes a set of moving iron core, static iron core, coil and reaction spring; each AC control and protector contact arc extinguishing device includes a set of moving contact bridge, moving contact Head, contact bracket, static contact, static contact bridge, arc extinguishing cover. The moving contact bridge and the moving contact are installed and fixed on the contact bracket, and the contact bracket is installed on the moving iron core. Each AC control and protector contact arc extinguishing device has only one phase contact, which only connects and breaks one phase current ; Current sensors are set on the static contact bridge of each AC control and protector contact arc extinguishing device.

本智能交流控制与保护器的单片机控制装置在适当时刻接通交流控制与保护器电磁机构线圈电流，能保证三台交流控制与保护器触头灭弧装置的触头分别准确地在三相电压零点附近接通，在要求正常分断或发生过载，断相，堵转，过电压，欠电压、相序反等故障时，单片机控制装置在适当时刻切断交流控制与保护器电磁机构线圈电流，能保证三台交流控制与保护器触头灭弧装置的触头分别准确地在三相电流接近过零时打开。本电器在短路故障发生时单片机控制装置快速切断交流控制与保护器电磁机构线圈电流，使三台交流控制与保护器触头灭弧装置的触头快速打开，切断短路电流。The single-chip microcomputer control device of the intelligent AC control and protector connects the coil current of the electromagnetic mechanism of the AC control and protector at an appropriate time, which can ensure that the contacts of the arc extinguishing devices of the three AC control and protector contacts are respectively accurately in the three-phase voltage. When it is connected near the zero point, when normal breaking is required or when faults such as overload, phase failure, stall, overvoltage, undervoltage, reverse phase sequence, etc. occur, the single-chip microcomputer control device cuts off the coil current of the electromagnetic mechanism of the AC control and protector at an appropriate time. Ensure that the contacts of the three AC control and protector contact arc extinguishing devices are opened accurately when the three-phase current is close to zero crossing. When a short-circuit fault occurs, the single-chip microcomputer control device quickly cuts off the coil current of the electromagnetic mechanism of the AC control and protector, so that the contacts of the three AC control and protector contact arc extinguishing devices are quickly opened to cut off the short-circuit current.

本发明与现有技术相比不仅具有零电压接通功能，在要求正常分断或发生过载，断相，堵转，过电压，欠电压、相序反等故障时，能准确控制，使分断电弧能量更少，能实现少弧或无弧分断，具有交流接触器的控制功能与电动机保护器的保护功能，在短路故障发生时能快速切断短路电流，具有断路器的保护功能，具有工作可靠稳定，电寿命高等特点。具有控制与保护综合功能。Compared with the prior art, the present invention not only has the function of zero-voltage connection, but also can accurately control when normal breaking is required or when faults such as overload, phase failure, locked rotor, overvoltage, undervoltage, and reverse phase sequence occur, so that the breaking arc can be accurately controlled. With less energy, it can achieve less arc or no arc breaking. It has the control function of AC contactor and the protection function of motor protector. When a short-circuit fault occurs, it can quickly cut off the short-circuit current. It has the protection function of a circuit breaker and has reliable and stable operation. , High electrical life characteristics. It has comprehensive functions of control and protection.

附图说明：Description of drawings:

图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.

图2为本发明的具体结构示意图。Fig. 2 is a schematic diagram of the specific structure of the present invention.

图3为本发明的单片机控制装置的电路部分连接示意框图。Fig. 3 is a schematic block diagram of the connection of the circuit part of the single-chip microcomputer control device of the present invention.

标号说明：A为单片机控制装置；B为交流控制与保护器电磁机构；C为交流控制与保护器触头灭弧装置；F为交流控制与保护器的电流传感器；B1为第一台交流控制与保护器电磁机构；C1为第一台交流控制与保护器触头灭弧装置；B2为第二台交流控制与保护器电磁机构；C2为第二台交流控制与保护器触头灭弧装置；B3为第三台交流控制与保护器电磁机构；C3为第三台交流控制与保护器触头灭弧装置；Z为整流电路；Z1为第一台交流控制与保护器主控元件；Z2为第二台交流控制与保护器主控元件；Z3为第三台交流控制与保护器主控元件；Z11为第一台交流控制与保护器保持控制元件；Z12为第二台交流控制与保护器保持控制元件；Z13为第三台交流控制与保护器保持控制元件；X1为第一台交流控制与保护器线圈；X2为第二台交流控制与保护器线圈；X3为第三台交流控制与保护器线圈；Y1为降压控制电路；D为单片机装置；E1为控制电路；E2为控制电路；F1为第一台交流控制与保护器的电流传感器；F2为第二台交流控制与保护器的电流传感器；F3为第三台交流控制与保护器的电流传感器；M1为测量某线电压的第一电压传感器；M2为测量另一线电压的第二电压传感器；1为某相动触桥；2为动触头；3为触头支架；4为静触头；5为静触桥；6为动铁芯；7为静铁芯；8为线圈；9为灭弧罩；10为反力弹簧。Explanation of symbols: A is the single-chip microcomputer control device; B is the electromagnetic mechanism of the AC control and protector; C is the contact arc extinguishing device of the AC control and protector; F is the current sensor of the AC control and protector; B1 is the first AC control and protector electromagnetic mechanism; C1 is the first AC control and protector contact arc extinguishing device; B2 is the second AC control and protector electromagnetic mechanism; C2 is the second AC control and protector contact arc extinguishing device ; B3 is the electromagnetic mechanism of the third AC control and protector; C3 is the contact arc extinguishing device of the third AC control and protector; Z is the rectification circuit; Z1 is the main control element of the first AC control and protector; Z2 It is the main control component of the second AC control and protector; Z3 is the main control component of the third AC control and protector; Z11 is the holding control component of the first AC control and protector; Z12 is the second AC control and protection Z13 is the holding control element of the third AC control and protector; X1 is the coil of the first AC control and protector; X2 is the coil of the second AC control and protector; X3 is the third AC control and protector coil; Y1 is the step-down control circuit; D is the microcontroller device; E1 is the control circuit; E2 is the control circuit; F1 is the current sensor of the first AC control and protector; F2 is the second AC control and protection F3 is the current sensor of the third AC control and protector; M1 is the first voltage sensor for measuring the voltage of a certain line; M2 is the second voltage sensor for measuring the voltage of another line; 1 is the moving contact bridge of a certain phase ; 2 is moving contact; 3 is contact bracket; 4 is static contact; 5 is static contact bridge; 6 is moving iron core; 7 is static iron core; 8 is coil; 9 is arc extinguishing cover; 10 is reverse force spring.

具体实施方式：Detailed ways:

图1、图2、图3中：In Figure 1, Figure 2, and Figure 3:

从图1、图2可知，控制交流控制与保护器电磁机构B、交流控制与保护器触头灭弧装置C以及交流控制与保护器的电流传感器F各有三台；单片机控制装置A控制交流控制与保护器电磁机构B，交流控制与保护器电磁机构B带动交流控制与保护器触头灭弧装置C，电流传感器F套在交流控制与保护器触头灭弧装置上。It can be seen from Figure 1 and Figure 2 that there are three sets of electromagnetic mechanism B for controlling the AC control and protector, contact arc extinguishing device C for the AC control and protector, and three current sensors F for the AC control and protector; single-chip control device A controls the AC control And protector electromagnetic mechanism B, AC control and protector electromagnetic mechanism B drives the AC control and protector contact arc extinguishing device C, and the current sensor F is set on the AC control and protector contact arc extinguishing device.

从图2、图3可知，单片机控制装置A控制第一台交流控制与保护器电磁机构B1，第二台交流控制与保护器电磁机构B2，第三台交流控制与保护器电磁机构B3，单片机控制装置A的电路部分，其连接关系是电源Y接至整流电路Z的交流侧与降压控制电路Y1的输入端，整流电路Z的直流侧接至第一台交流控制与保护器主控元件Z1、第二台交流控制与保护器主控元件Z2、第三台交流控制与保护器主控元件Z3，第一台交流控制与保护器主控元件Z1输出端接至第一台交流控制与保护器线圈X1，第二台交流控制与保护器主控元件Z2输出端接至第二台交流控制与保护器线圈X2，第三台交流控制与保护器主控元件Z3输出端接至第三台交流控制与保护器线圈X3，降压控制电路Y1的输出端经过第一台交流控制与保护器保持控制元件Z11接至第一台交流控制与保护器线圈X1，降压控制电路Y1的输出端经过第二台交流控制与保护器保持控制元件Z12接至第二台交流控制与保护器线圈X2，降压控制电路Y1的输出端经过第三台交流控制与保护器保持控制元件Z13接至第三台交流控制与保护器线圈X3，整流电路Z的直流侧另一端分别与第一台交流控制与保护器线圈X1另一端、第二台交流控制与保护器线圈X2另一端、第三台交流控制与保护器线圈X3另一端、降压控制电路Y1的另一输出端相接，单片机装置D的第一输出口1接第一控制电路E1的输入端，第一控制电路E1的一个输出端接至第一台交流控制与保护器主控元件Z1的控制端，单片机装置D的第二输出口2接第一控制电路E1的另一个输入端，第一控制电路E1的另一个输出端接至第二台交流控制与保护器主控元件Z2的控制端，单片机装置D的第三输出口3接第一控制电路E1的另一个输入端，第一控制电路E1的另一个输出端接至第三台交流控制与保护器主控元件Z3的控制端，单片机装置D的第四输出口4接第二控制电路E2的输入端，第二控制电路E2的一个输出端接至第一台交流控制与保护器保持控制元件Z11的控制端，单片机装置D的第五输出口5接第二控制电路E2的另一个输入端，第二控制电路E2的另一个输出端接至第二台交流控制与保护器保持控制元件Z12的控制端，单片机装置D的第六输出口6接第二控制电路E2的另一个输入端，第二控制电路E2的另一个输出端接至第三台交流控制与保护器保持控制元件Z13的控制端，第一电流传感器F1的输出端接至单片机装置D的第一A/D口1，第二电流传感器F2的输出端接至单片机装置D的第二A/D口2，第三电流传感器F3的输出端接至单片机装置D的第三A/D口3，第一电压传感器M1的输出端接单片机装置D的第四A/D口4，第二电压传感器M2的输出端接单片机装置D的第五A/D口5。It can be seen from Fig. 2 and Fig. 3 that the single-chip control device A controls the first AC control and protector electromagnetic mechanism B1, the second AC control and protector electromagnetic mechanism B2, and the third AC control and protector electromagnetic mechanism B3. The circuit part of the control device A, its connection relationship is that the power supply Y is connected to the AC side of the rectifier circuit Z and the input terminal of the step-down control circuit Y1, and the DC side of the rectifier circuit Z is connected to the main control element of the first AC control and protector Z1, the main control element Z2 of the second AC control and protector, the main control element Z3 of the third AC control and protector, the output terminal of the main control element Z1 of the first AC control and protector is connected to the first AC control and protector The protector coil X1, the output terminal of the main control component Z2 of the second AC control and protector is connected to the coil X2 of the second AC control and protector, and the output terminal of the main control component Z3 of the third AC control and protector is connected to the third The first AC control and protector coil X3, the output terminal of the step-down control circuit Y1 is connected to the first AC control and protector coil X1 through the first AC control and protector holding control element Z11, and the output of the step-down control circuit Y1 The terminal is connected to the second AC control and protector coil X2 through the second AC control and protector holding control element Z12, and the output end of the step-down control circuit Y1 is connected to the third AC control and protector holding control element Z13. The coil X3 of the third AC control and protector, the other end of the DC side of the rectifier circuit Z is connected to the other end of the coil X1 of the first AC control and protector, the other end of the coil X2 of the second AC control and protector, and the other end of the coil X2 of the third AC control and protector. The AC control is connected with the other end of the protector coil X3 and the other output end of the step-down control circuit Y1, the first output port 1 of the single-chip microcomputer device D is connected with the input end of the first control circuit E1, and an output of the first control circuit E1 The terminal is connected to the control terminal of the main control element Z1 of the first AC control and protector, the second output port 2 of the single-chip microcomputer device D is connected to the other input terminal of the first control circuit E1, and the other output terminal of the first control circuit E1 Connect to the control terminal of the main control element Z2 of the second AC control and protector, the third output port 3 of the single-chip microcomputer device D is connected to the other input terminal of the first control circuit E1, and the other output terminal of the first control circuit E1 is connected to To the control terminal of the main control element Z3 of the third AC control and protector, the fourth output port 4 of the single-chip microcomputer device D is connected to the input terminal of the second control circuit E2, and an output terminal of the second control circuit E2 is connected to the first The AC control and protector keeps the control terminal of the control element Z11, the fifth output port 5 of the single-chip microcomputer device D is connected to the other input terminal of the second control circuit E2, and the other output terminal of the second control circuit E2 is connected to the second AC The control and protector keeps the control terminal of the control element Z12, the sixth output port 6 of the single-chip microcomputer device D is connected to the other input terminal of the second control circuit E2, and the other output terminal of the second control circuit E2 is connected to the third AC control Keep the control terminal of the control element Z13 with the protector, the output terminal of the first current sensor F1 is connected to the first A/D port 1 of the single-chip microcomputer device D, and the output terminal of the second current sensor F2 The output terminal is connected to the second A/D port 2 of the single-chip microcomputer device D, the output terminal of the third current sensor F3 is connected to the third A/D port 3 of the single-chip microcomputer device D, and the output terminal of the first voltage sensor M1 is connected to the single-chip microcomputer device D The fourth A/D port 4 of the second voltage sensor M2 is connected to the fifth A/D port 5 of the single-chip microcomputer device D.

从图2可知，动触桥1与动触头2安装固定在触头支架3上，触头支架3安装在动铁芯6上，灭弧罩9罩住动触桥1与动触头2，第一台交流控制与保护器触头灭弧装置C1只有一相触头，仅接通分断一相电流，第二台交流控制与保护器触头灭弧装置只有一相触头，仅接通分断另一相电流，第三台交流控制与保护器触头灭弧装置只有一相触头，仅接通分断第三相电流，电流传感器F1套在第一台交流控制与保护器触头灭弧装置的静触桥5上，电流传感器F2套在第二台交流控制与保护器触头灭弧装置的静触桥5上，电流传感器F3套在第三台交流控制与保护器触头灭弧装置的静触桥5上，在接通时，单片机控制装置A对第一电压传感器M1，第二电压传感器M2信号进行采样，并在适当时刻接通第一台交流控制与保护器电磁机构B1线圈，使第一台交流控制与保护器触头灭弧装置C1的触头在电压接近过零时闭合，单片机控制装置A在适当时刻接通第二台交流控制与保护器电磁机构B2线圈，使第二台交流控制与保护器触头灭弧装置C1的触头在电压接近过零时闭合，单片机控制装置A在适当时刻接通第三台交流控制与保护器电磁机构B2线圈，使第二台交流控制与保护器触头灭弧装置C1的触头在电压接近过零时闭合，It can be seen from Fig. 2 that the moving contact bridge 1 and the moving contact 2 are installed and fixed on the contact bracket 3, the contact bracket 3 is installed on the moving iron core 6, and the arc extinguishing cover 9 covers the moving contact bridge 1 and the moving contact 2 , the first AC control and protector contact arc extinguishing device C1 has only one phase contact, only connects and breaks one phase current, the second AC control and protector contact arc extinguishing device has only one phase contact, only connects On and off the other phase current, the third AC control and protector contact arc extinguishing device has only one phase contact, only connects and breaks the third phase current, the current sensor F1 is set on the first AC control and protector contact On the static contact bridge 5 of the arc extinguishing device, the current sensor F2 is set on the static contact bridge 5 of the second AC control and protector contact arc extinguishing device, and the current sensor F3 is set on the third AC control and protector contact On the static contact bridge 5 of the arc extinguishing device, when it is turned on, the single-chip control device A samples the signals of the first voltage sensor M1 and the second voltage sensor M2, and turns on the first AC control and protector electromagnetic The coil of the mechanism B1 makes the contact of the first AC control and protector contact arc extinguishing device C1 close when the voltage is close to zero, and the single-chip control device A connects the second AC control and protector electromagnetic mechanism B2 at an appropriate time Coil, so that the contact of the second AC control and protector contact arc extinguishing device C1 is closed when the voltage is close to zero, and the single-chip control device A is connected to the coil of the third AC control and protector electromagnetic mechanism B2 at an appropriate time. Make the contact of the second AC control and protector contact arc extinguishing device C1 close when the voltage is close to zero,

在运行时，单片机控制装置A对第一电压传感器M1，第二电压传感器M2，第一电流传感器F1，第二电流传感器F2，第三电流传感器F3信号进行采样，在要求正常分断或发生过载，断相，堵转，过电压，欠电压、相序反故障时，单片机控制装置A在适当时刻切断第一台交流控制与保护器电磁机构B1线圈电流，使第一台交流控制与保护器触头灭弧装置C1的触头在第一相电流接近过零时打开，单片机控制装置A在适当时刻切断第二台交流控制与保护器电磁机构B2线圈电流，使第二台交流控制与保护器触头灭弧装置C2的触头在第二相电流接近过零时打开，单片机控制装置A在适当时刻切断第三台交流控制与保护器电磁机构B3线圈电流，使第三台交流控制与保护器触头灭弧装置C3的触头在第三相电流接近过零时打开，在发生短路故障时，单片机控制装置A立即切断三台交流控制与保护器电磁机构线圈电流，使三台交流控制与保护器触头灭弧装置的触头迅速打开。During operation, the single-chip control device A samples the signals of the first voltage sensor M1, the second voltage sensor M2, the first current sensor F1, the second current sensor F2, and the third current sensor F3. When normal breaking or overload occurs, In the event of phase failure, locked rotor, overvoltage, undervoltage, or reverse phase sequence fault, the single-chip microcomputer control device A cuts off the coil current of the electromagnetic mechanism B1 of the first AC control and protector at an appropriate time, so that the first AC control and protector is triggered. The contact of the head arc extinguishing device C1 opens when the first phase current is close to zero, and the single-chip control device A cuts off the coil current of the electromagnetic mechanism B2 of the second AC control and protector at an appropriate time, so that the second AC control and protector The contact of the contact arc extinguishing device C2 opens when the second phase current approaches zero, and the single-chip control device A cuts off the coil current of the electromagnetic mechanism B3 of the third AC control and protector at an appropriate time, so that the third AC control and protection device The contact of the arc extinguishing device C3 of the contactor contact is opened when the third phase current is close to zero. The contact with the protector contact arc extinguishing device opens quickly.

如图3所示，单片机控制装置的电路部分，其连接关系是电源Y接至整流电路Z的交流侧与降压控制电路Y1的输入端，整流电路Z的直流侧接至第一台交流控制与保护器主控元件Z1、第二台交流控制与保护器主控元件Z2、第三台交流控制与保护器主控元件Z3，第一台交流控制与保护器主控元件Z1输出端接至第一台交流控制与保护器线圈X1，第二台交流控制与保护器主控元件Z2输出端接至第二台交流控制与保护器线圈X2，第三台交流控制与保护器主控元件Z3输出端接至第三台交流控制与保护器线圈X3，降压控制电路Y1的输出端经过第一台交流控制与保护器保持控制元件Z11接至第一台交流控制与保护器线圈X1，降压控制电路Y1的输出端经过第二台交流控制与保护器保持控制元件Z12接至第二台交流控制与保护器线圈X2，降压控制电路Y1的输出端经过第三台交流控制与保护器保持控制元件Z13接至第三台交流控制与保护器线圈X3，整流电路Z的直流侧另一端分别与第一台交流控制与保护器线圈X1另一端、第二台交流控制与保护器线圈X2另一端、第三台交流控制与保护器线圈X3另一端、降压控制电路Y1的另一输出端相接，单片机装置D的第一输出口1接第一控制电路E1的输入端，第一控制电路E1的一个输出端接至第一台交流控制与保护器主控元件Z1的控制端，单片机装置D的第二输出口2接第一控制电路E1的另一个输入端，第一控制电路E1的另一个输出端接至第二台交流控制与保护器主控元件Z2的控制端，单片机装置D的第三输出口3接第一控制电路E1的另一个输入端，第一控制电路E1的另一个输出端接至第三台交流控制与保护器主控元件Z3的控制端，单片机装置D的第四输出口4接第二控制电路E2的输入端，第二控制电路E2的一个输出端接至第一台交流控制与保护器保持控制元件Z11的控制端，单片机装置D的第五输出口5接第二控制电路E2的另一个输入端，第二控制电路E2的另一个输出端接至第二台交流控制与保护器保持控制元件Z12的控制端，单片机装置D的第六输出口6接第二控制电路E2的另一个输入端，第二控制电路E2的另一个输出端接至第三台交流控制与保护器保持控制元件Z13的控制端，第一电流传感器F1的输出端接至D的第一A/D口1，第二电流传感器F2的输出端接至D的第二A/D口2，第三电流传感器F3的输出端接至D的第三A/D口3，第一电压传感器M1的输出端接单片机装置D的第四A/D口4，第二电压传感器M2的输出端接单片机装置D的第五A/D口5。As shown in Figure 3, the circuit part of the single-chip microcomputer control device, its connection relationship is that the power supply Y is connected to the AC side of the rectifier circuit Z and the input terminal of the step-down control circuit Y1, and the DC side of the rectifier circuit Z is connected to the first AC control circuit. And protector main control element Z1, the second AC control and protector main control element Z2, the third AC control and protector main control element Z3, the output terminal of the first AC control and protector main control element Z1 is connected to The coil X1 of the first AC control and protector, the output terminal of the main control component Z2 of the second AC control and protector is connected to the coil X2 of the second AC control and protector, and the main control component Z3 of the third AC control and protector The output terminal is connected to the coil X3 of the third AC control and protector, and the output terminal of the step-down control circuit Y1 is connected to the coil X1 of the first AC control and protector through the holding control element Z11 of the first AC control and protector. The output terminal of the voltage control circuit Y1 is connected to the coil X2 of the second AC control and protector through the second AC control and protector, and the control element Z12 is connected to the coil X2 of the second AC control and protector. The output terminal of the step-down control circuit Y1 passes through the third AC control and protector. The control element Z13 is connected to the coil X3 of the third AC control and protector, and the other end of the DC side of the rectification circuit Z is respectively connected to the other end of the coil X1 of the first AC control and protector, and the coil X2 of the second AC control and protector The other end, the other end of the third AC control and protector coil X3, and the other output end of the step-down control circuit Y1 are connected, the first output port 1 of the single-chip microcomputer device D is connected to the input end of the first control circuit E1, the first One output terminal of the control circuit E1 is connected to the control terminal of the main control element Z1 of the first AC control and protector, the second output port 2 of the single-chip microcomputer device D is connected to the other input terminal of the first control circuit E1, and the first control circuit The other output terminal of E1 is connected to the control terminal of the main control element Z2 of the second AC control and protector, the third output port 3 of the single-chip microcomputer device D is connected to the other input terminal of the first control circuit E1, and the first control circuit E1 The other output terminal of the single-chip microcomputer device D is connected to the control terminal of the main control element Z3 of the third AC control and protector, the fourth output port 4 of the single-chip microcomputer device D is connected to the input terminal of the second control circuit E2, and one output terminal of the second control circuit E2 The end is connected to the control end of the first AC control and protector holding control element Z11, the fifth output port 5 of the single-chip microcomputer device D is connected to the other input end of the second control circuit E2, and the other output end of the second control circuit E2 Connect to the control terminal of the second AC control and protector holding control element Z12, the sixth output port 6 of the single-chip microcomputer device D is connected to the other input terminal of the second control circuit E2, and the other output terminal of the second control circuit E2 is connected to To the control terminal of the third AC control and protector to keep the control element Z13, the output terminal of the first current sensor F1 is connected to the first A/D port 1 of D, and the output terminal of the second current sensor F2 is connected to the first A/D port of D Two A/D ports 2, the output terminal of the third current sensor F3 is connected to the third A/D port 3 of D, the output terminal of the first voltage sensor M1 is connected to the fourth A/D port 4 of the single-chip microcomputer device D, and the second Voltage The output terminal of the sensor M2 is connected to the fifth A/D port 5 of the single-chip microcomputer device D.

Claims (2)

1.一种组合式智能交流控制与保护器，它包括单片机控制装置(A)、交流控制与保护器电磁机构(B)、交流控制与保护器触头灭弧装置(C)、电流传感器(F)，其特征在于，所述的组合式智能交流控制与保护器包括：三台独立的交流控制与保护器电磁机构(B1、B2、B3)，三台独立的交流控制与保护器触头灭弧装置(C1、C2、C3)；每台的交流控制与保护器电磁机构对应一台的交流控制与保护器触头灭弧装置，每一台的交流控制与保护器电磁机构(B1、B2、B3)均包括一组的动铁芯(6)、静铁芯(7)、线圈(8)、反力弹簧(10)；每台交流控制与保护器触头灭弧装置均包括一组的动触桥(1)、动触头(2)、触头支架(3)、静触头(4)、静触桥(5)、灭弧罩(9)；1. A combined intelligent AC control and protector, which includes a single-chip microcomputer control device (A), an AC control and protector electromagnetic mechanism (B), an AC control and protector contact arc extinguishing device (C), a current sensor ( F), characterized in that the combined intelligent AC control and protector includes: three independent AC control and protector electromagnetic mechanisms (B1, B2, B3), three independent AC control and protector contacts Arc extinguishing device (C1, C2, C3); each AC control and protector electromagnetic mechanism corresponds to one AC control and protector contact arc extinguishing device, each AC control and protector electromagnetic mechanism (B1, B2, B3) all include a set of moving iron core (6), static iron core (7), coil (8), reaction force spring (10); each AC control and protector contact arc extinguishing device includes a group of moving contact bridge (1), moving contact (2), contact support (3), static contact (4), static contact bridge (5), arc extinguishing cover (9); 动触桥(1)与动触头(2)安装固定在触头支架(3)上，触头支架(3)安装在动铁芯(6)上，每台交流控制与保护器触头灭弧装置(C1、C2、C3)只有一相触头，仅接通分断一相电流；在其中每台交流控制与保护器触头灭弧装置(C1、C2、C3)的静触桥(5)上均套有电流传感器(F1、F2、F3)。The moving contact bridge (1) and the moving contact (2) are installed and fixed on the contact bracket (3), and the contact bracket (3) is installed on the moving iron core (6). The arc device (C1, C2, C3) has only one phase contact, and only connects and breaks one phase current; among them, the static contact bridge (5 ) are covered with current sensors (F1, F2, F3). 2、根据权利要求1所述的组合式智能交流控制与保护器，其特征在于：所述的单片机控制装置(A)的电路部分，其连接关系是电源(Y)接至整流电路(Z)的交流侧与降压控制电路(Y1)的输入端，整流电路(Z)的直流侧接至第一台交流控制与保护器主控元件(Z1)、第二台交流控制与保护器主控元件(Z2)、第三台交流控制与保护器主控元件(Z3)，第一台交流控制与保护器主控元件(Z1)输出端接至第一台交流控制与保护器线圈(X1)，第二台交流控制与保护器主控元件(Z2)输出端接至第二台交流控制与保护器线圈(X2)，第三台交流控制与保护器主控元件(Z3)输出端接至第三台交流控制与保护器线圈(X3)，降压控制电路(Y1)的输出端经过第一台交流控制与保护器保持控制元件(Z11)接至第一台交流控制与保护器线圈(X1)，降压控制电路(Y1)2. The combined intelligent AC control and protector according to claim 1, characterized in that: the circuit part of the single-chip microcomputer control device (A), its connection relationship is that the power supply (Y) is connected to the rectifier circuit (Z) The AC side of the rectifier circuit and the input terminal of the step-down control circuit (Y1), the DC side of the rectifier circuit (Z) is connected to the main control element (Z1) of the first AC control and protector, and the main control unit of the second AC control and protector Component (Z2), the main control component (Z3) of the third AC control and protector, the output terminal of the main control component (Z1) of the first AC control and protector is connected to the coil (X1) of the first AC control and protector , the output terminal of the main control element (Z2) of the second AC control and protector is connected to the coil (X2) of the second AC control and protector, and the output terminal of the main control element (Z3) of the third AC control and protector is connected to The third AC control and protector coil (X3), the output end of the step-down control circuit (Y1) is connected to the first AC control and protector coil (Z11) through the first AC control and protector holding control element (Z11) X1), step-down control circuit (Y1) 的输出端经过第二台交流控制与保护器保持控制元件(Z12)接至第二台交流控制与保护器线圈(X2)，降压控制电路(Y1)的输出端经过第三台交流控制与保护器保持控制元件(Z13)接至第三台交流控制与保护器线圈(X3)，整流电路(Z)的直流侧另一端分别与第一台交流控制与保护器线圈(X1)另一端、第二台交流控制与保护器线圈(X2)另一端、第三台交流控制与保护器线圈(X3)另一端、降压控制电路(Y1)的另一输出端相接，单片机装置(D)的第一输出口接第一控制电路(E1)的输入端，第一控制电路(E1)的一个输出端接至第一台交流控制与保护器主控元件(Z1)的控制端，单片机装置(D)的第二输出口接第一控制电路(E1)的另一个输入端，第一控制电路(E1)的另一个输出端接至第二台交流控制与保护器主控元件(Z2)的控制端，单片机装置(D)的第三输出口接第一控制电路(E1)的另一个输入端，第一控制电路(E1)的另一个输出端接至第三台交流控制与保护器主控元件(Z3)的控制端，单片机装置(D)的第四输出口接第二控制电路(E2)的输入端，第二控制电路(E2)的一个输出端接至第一台交流控制与保护器保持控制元件(Z11)的控制端，单片机装置(D)的第五输出口接第二控制电路(E2)的另一个输入端，第二控制电路(E2)的另一个输出端接至第二台交流控制与保护器保持控制元件(Z12)的控制端，单片机装置(D)的第六输出口接第二控制电路(E2)的另一个输入端，第二控制电路(E2)的另一个输出端接至第三台交流控制与保护器保持控制元件(Z13)的控制端，第一电流传感器(F1)的输出端接至单片机装置(D)的第一A/D口，第二电流传感器(F2)的输出端接至单片机装置(D)的第二A/D口，第三电流传感器(F3)的输出端接至单片机装置(D)的第三A/D口，第一电压传感器(M1)的输出端接单片机装置(D)的第四A/D口，第二电压传感器(M2)的输出端接单片机装置(D)的第五A/D口。The output terminal of the step-down control circuit (Y1) is connected to the second AC control and protector coil (X2) through the second AC control and protector to keep the control element (Z12), and the output terminal of the step-down control circuit (Y1) is passed through the third AC control and protector. The protector holding control element (Z13) is connected to the coil (X3) of the third AC control and protector, and the other end of the DC side of the rectifier circuit (Z) is respectively connected to the other end of the coil (X1) of the first AC control and protector, The other end of the second AC control and protector coil (X2), the other end of the third AC control and protector coil (X3), and the other output end of the step-down control circuit (Y1), the single-chip microcomputer device (D) The first output port of the first control circuit (E1) is connected to the input end of the first control circuit (E1), and one output end of the first control circuit (E1) is connected to the control end of the main control element (Z1) of the first AC control and protector, and the single-chip microcomputer device The second output port of (D) is connected to the other input terminal of the first control circuit (E1), and the other output terminal of the first control circuit (E1) is connected to the main control element (Z2) of the second AC control and protector The control terminal of the single-chip microcomputer device (D) is connected to the other input terminal of the first control circuit (E1), and the other output terminal of the first control circuit (E1) is connected to the third AC control and protector The control terminal of the main control element (Z3), the fourth output port of the single-chip microcomputer device (D) is connected to the input terminal of the second control circuit (E2), and an output terminal of the second control circuit (E2) is connected to the first AC control Keep the control terminal of the control element (Z11) with the protector, the fifth output port of the single-chip microcomputer device (D) is connected to the other input terminal of the second control circuit (E2), and the other output terminal of the second control circuit (E2) is connected to To the control terminal of the second AC control and protector holding control element (Z12), the sixth output port of the single-chip microcomputer device (D) is connected to the other input terminal of the second control circuit (E2), and the second control circuit (E2) The other output terminal of the first current sensor (F1) is connected to the first A/D port of the single-chip microcomputer device (D) to the control terminal of the third AC control and protector holding control element (Z13), The output terminal of the second current sensor (F2) is connected to the second A/D port of the single-chip microcomputer device (D), and the output terminal of the third current sensor (F3) is connected to the third A/D port of the single-chip microcomputer device (D), The output terminal of the first voltage sensor (M1) is connected to the fourth A/D port of the single-chip microcomputer device (D), and the output terminal of the second voltage sensor (M2) is connected to the fifth A/D port of the single-chip microcomputer device (D).
CNB2005101252941A 2005-09-27 2005-11-23 Combined intelligent AC control and protector Expired - Fee Related CN100459012C (en)

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