Smart Controller Design of 10 kV Vacuum Circuit Breaker with Permanent Magnetic Actuator

doi:10.3969/j.issn.1000-7229.2015.02.009

Abstract

Abstract:

According to the status of single micro control unit （MCU） of vacuum circuit breaker controller with permanent magnetic actuator： many processing tasks, slow running speed, higher failure rate and so on, this paper designed a new type of smart controller for 10 kV vacuum circuit breaker with permanent magnetic actuator. The controller was divided into three modules： power, protection and communication, and each had MCU respectively to achieve corresponding functions. In terms of hardware, the protection unit used STM32f407 MCU as microprocessor, which could achieve the functions of signal acquisition, processing, protection and so on； two STM32f103 MCUs were used as the core hardware of power management, communications and human-computer interaction. In terms of software, μC/OS-II real-time operating system （RTOS） and TCP/IP protocol were ported to the system, which could have a high degree of stability and real-time. The test results show that the reliability, computing speed and accuracy of the new controller have been greatly improved, and at the same time, the fault rate is reduced.

Key words: vacuum circuit breaker with permanent magnetic actuator, smart controller, μC/OS-II real-time operating system

HUANG Xinbo, ZUN Mingwei, XIAO Yuan, ZHU Yongcan, ZHU Haitao. Smart Controller Design of 10 kV Vacuum Circuit Breaker with Permanent Magnetic Actuator[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(2): 54-60.

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