机车主断路器储能电容恒流充电控制

doi:10.16628/j.cnki.2095-8188.2020.07.007

电器与能效管理技术 ›› 2020, Vol. 592 ›› Issue (7): 42-45.doi: 10.16628/j.cnki.2095-8188.2020.07.007

机车主断路器储能电容恒流充电控制

宋玉帛, 马少华

沈阳工业大学电气工程学院, 辽宁沈阳 110870

收稿日期:2020-03-01 出版日期:2020-07-30 发布日期:2020-08-10
作者简介:宋玉帛(1994—),男,硕士研究生,研究方向为智能电器。|马少华(1963—),女,教授,研究方向为电器控制。

Locomotive Main Circuit Breaker Energy Storage Capacitor Constant Current Charging Control

SONG Yubo, MA Shaohua

School of Electrical Engineering,Shenyang University of Technology, Shenyang 110870, China

Received:2020-03-01 Online:2020-07-30 Published:2020-08-10

摘要/Abstract

摘要：

目前机车真空断路器操动机构合闸线圈供电方式采用储能电容供电成为主流。使用模糊控制方法输出PWM波形控制电容的充电电压,使充电电流波形基本恒定,降低了能量在限流电阻上的损耗,并可通过调整设定值灵活调整充电电流。为验证模糊控制的可行性,在Simulink中搭建模糊控制系统和主电路,对充电过程进行仿真。仿真结果表明通过调整IGBT占空比实现了电容的恒流充电,避免电容受到大电流冲击,提高储能电容的使用寿命,降低了机车因频繁过相分合闸引起的储能故障。

关键词: 机车, 储能电容, 模糊控制, 恒流

Abstract:

At present,the closing coil power supply mode of the operating mechanism of the locomotive vacuum circuit breaker is divided into energy storage capacitor power supply and DC power supply.Since the closing process requires short-term large current and large DC power supply,the use of energy storage capacitor as the closing coil power supply has become the mainstream.In order to eliminate the way of series resistor limiting the charging current,the fuzzy control method is used to output PWM waveform to control the charging voltage of capacitor,making the charging current waveform basically constant and reducing the loss of energy on the current limiting resistor.The charging current can be flexibly adjusted by adjusting the set value.To test and verify the feasibility of fuzzy control,a fuzzy control system and the main circuit are built in Simulink to simulate the charging process.The simulation results show that by adjusting the IGBT duty cycle it achieved the capacitance of the constant current charging,which can avoid the large current shock,increase the service life of the energy storage capacitor,reduce the locomotive energy storage failure caused by frequent a closing phase points.

Key words: locomotive, energy storage capacitor, fuzzy control, constant current

中图分类号:

TM561

宋玉帛, 马少华. 机车主断路器储能电容恒流充电控制[J]. 电器与能效管理技术, 2020, 592(7): 42-45.

SONG Yubo, MA Shaohua. Locomotive Main Circuit Breaker Energy Storage Capacitor Constant Current Charging Control[J]. LOW VOLTAGE APPARATUS, 2020, 592(7): 42-45.

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参数	数值	参数	数值
U_i/ V	400	Limit_u	10 000
R_L/Ω	10	Limit_zkb	1/10 000
L_buck/ H	1e-3	t_Delay/s	1e-6
C₁/mF	20

机车主断路器储能电容恒流充电控制

Locomotive Main Circuit Breaker Energy Storage Capacitor Constant Current Charging Control

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