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An intelligent switch controller with fast exit circuit

A technology of intelligent switches and controllers, applied in the direction of circuit devices, electrical components, etc., can solve problems such as relay protection equipment misoperation, circuit breaker hazards, and system stability, and achieve reliable withstand voltage performance, high accuracy, The effect of fully determining the action time

Active Publication Date: 2016-09-21
NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Transient impacts such as inrush current and overvoltage generated when the circuit breaker opens and closes not only cause harm to the circuit breaker itself and user equipment, but also cause malfunction of relay protection equipment and endanger system stability

Method used

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  • An intelligent switch controller with fast exit circuit
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Embodiment Construction

[0013] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0014] see figure 1 and figure 2 , an intelligent switch controller with a fast exit circuit of the present invention includes a main control CPU module, a motherboard connector and a fast exit module, and is equipped with PC software, which can adjust the action parameters of the intelligent switch controller, such as time, phase etc.

[0015] The opening and closing instructions issued by the main control CPU module are processed by the microcontroller and the FPGA and sent through different channels at the same time.

[0016] The fast exit circuit includes a relay trip exit circuit and an IGBT trip exit circuit, and the relay trip exit circuit and the IGBT trip exit circuit are respectively driven by a CPLD chip and a differential chip. The...

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Abstract

The invention discloses an intelligent switch controller with a fast outlet loop. The intelligent switch controller comprises a master control CPU module and a fast outlet module with the fast outlet loop. The master control CPU module comprises a microcontroller and an FPGA chip connected with the microcontroller. The fast outlet loop comprises a relay trip outlet loop and an IGBT trip outlet loop. The fast outlet module further comprises a CPLD chip and a differential single end converting chip. The relay trip outlet loop and the IGBT trip outlet loop are driven by the CPLD chip and the differential single end converting chip respectively. A microprocessor is connected with the CPLD chip, the FPGA chip is connected with the differential single end converting chip, and the communication content is a differential level signal. The relay trip outlet loop and the IGBT trip outlet loop are combined, the integral loop has very reliable withstand voltage performance, the actuation time is completely definite, and the requirement of an electric system for accurate zero crossing point operation of a breaker is met.

Description

technical field [0001] The invention relates to an intelligent switch controller with a fast outlet circuit, which belongs to the technical field of relay protection of intelligent substations. Background technique [0002] At present, in smart substations, the primary equipment includes transformers, circuit breakers, etc., and the secondary equipment is divided into process layer, interval layer, and station control layer; among them, the process layer equipment includes merging units, intelligent operation boxes, etc.; interval layer The equipment includes relay protection devices, measurement and control devices, etc. [0003] Transient impacts such as inrush current and overvoltage generated when the circuit breaker opens and closes not only cause harm to the circuit breaker itself and user equipment, but also cause malfunction of relay protection equipment and endanger system stability. In view of this, users of smart substations hope to take measures to reduce the tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
Inventor 赵谦刘颖陈福锋李帅
Owner NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD
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