Dual-CPU based circuit breaker intelligent controller

A technology of intelligent controller and circuit breaker, which is applied in the direction of program control, computer control, general control system, etc., can solve the problems of poor real-time performance, single communication interface, and easy bottlenecks, etc., to achieve error reduction, powerful information output, good real-time sexual effect

Inactive Publication Date: 2010-01-20
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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Problems solved by technology

[0003] Traditional circuit breaker controllers can achieve certain acquisition accuracy and protection action requirements, but the effect of multi-channel signal processing is not good, the real-time performance is poor, bottlenecks are prone to occur, and it is not easy to expand and maintain
The intelligent controller of high-voltage circuit breaker should have the advantages of high reliability, high communication rate, real-time processing, small size, low power consumption, etc., which forces traditional circuit breaker controllers not to be widely used and promoted
At present, manufacturers and users require real-time control of the working status of the circuit breaker, and at the same time propose various protection methods, which requires more and more monitoring information for the status point of the circuit breaker, making the control method more an

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  • Dual-CPU based circuit breaker intelligent controller
  • Dual-CPU based circuit breaker intelligent controller
  • Dual-CPU based circuit breaker intelligent controller

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[0023] The present invention will be further described below with reference to the drawings and embodiments.

[0024] figure 1 Description marked in: 1-power supply unit, 2-collection unit, 3-open in / out unit, 4-communication unit, 5-human-computer interaction unit, 6-processor unit.

[0025] Such as figure 1 As shown, the intelligent controller of the circuit breaker based on the dual CPU in the embodiment of the present invention is composed of a power supply unit 1, a collection unit 2, a switch-in and switch-out unit 3, a communication unit 4, a human-computer interaction unit 5 and a processor unit 6. The processor unit 6 includes a DSP and an ARM processor. The acquisition unit 2 is composed of a transformer, a signal conditioning circuit and a high-precision 16-bit analog-to-digital conversion module. The binary input / output unit 3 includes 16 binary inputs and 16 outputs The communication unit 4 uses high-speed Ethernet as the main interface, and other extended interfaces i...

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Abstract

The invention relates a dual-CPU based circuit breaker intelligent controller. The controller comprises a power supply unit, an acquisition unit, an input and output unit, a communication unit, a man-machine interactive unit and a processor unit. The processor unit adopts a dual-CPU structure, and consists of DSP and AEM; in the acquisition unit, 12-channel analog amount acquisition is carried out at the same time, and the sampling accuracy thereof is 16-bit; the input and output unit comprises a 16-channel input and 16-channel output; the communication unit takes the high-speed Ethernet as a main interface, other extension interfaces comprise RS232, RS485 and JTAC; in the power supply unit, each supply circuit is over the ground alone; the man-machine interactive unit comprises a liquid crystal display and cross press keys. On account of the anti-electromagnetic interference, in the invention, shielding measures and PCB anti-interference scheme are taken. The circuit breaker intelligent controller of the invention is suitable for complex control and status control of high voltage level circuit breaker, has good real-time and reliability, and can also be applicable to develop power grid atomization.

Description

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Claims

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Application Information

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Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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