ACB电子控制器关键技术研究*

doi:10.16628/j.cnki.2095-8188.2020.08.005

电器与能效管理技术 ›› 2020, Vol. 593 ›› Issue (8): 23-28.doi: 10.16628/j.cnki.2095-8188.2020.08.005

ACB电子控制器关键技术研究^*

张海跟¹, 舒亮¹, 游颖敏¹^,², 陈冲¹, 洪邦光¹

1.温州大学浙江省低压电器工程技术研究中心,浙江温州 325035
2.河北工业大学电磁场与电器可靠性省部共建重点实验室,天津 300130

收稿日期:2020-05-27 出版日期:2020-08-30 发布日期:2020-09-10
作者简介:张海跟(1996—),男,硕士研究生,研究方向为智能电器技术。|舒亮(1982—),男,教授,研究方向为智能电器技术、电器数字化制造技术。|游颖敏(1980—),男,博士研究生,研究方向为电器智能化理论及控制。
基金资助:
* 浙江省分析测试科技计划项目(2018C37068);浙江省公益技术研究计划(LGC20E070001);浙江省教育厅资助项目(Y201737046);温州市重大科技专项(2G2017002)

Research and Implementation of Key Technology of Air Circuit Breaker Electronic Controller

ZHANG Haigen¹, SHU Liang¹, YOU Yingmin¹^,², CHEN Chong¹, HONG Bangguang¹

1. The Engineering Technology Research Center of Low-Voltage Apparatus of Zhejiang Province,Wenzhou University,Wenzhou 325035,China
2. Province-ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability,Hebei University of Technology,Tianjin 300130,China

Received:2020-05-27 Online:2020-08-30 Published:2020-09-10

摘要/Abstract

摘要：

提出一种双电源供电的断路器电子控制器电路,增加了系统可靠性。基于低功耗理念,设计了集高精度多路交流信号采集模块、磁隔离型RS-485通信模块、液晶显示与输入模块、中央控制器模块等,经测试系统功耗为0.79 W。相比常规产品最大低功耗提升71%,电流精度最大提升48%。系统采用多任务实时操作系统,通过多路采集模块将电流、电压信号采样,实时计算电流、电压值,具有过载、短路、瞬断、缺相、电流不平衡、电压不平衡等保护特性,同时考虑控制器的热记忆功能,实现了对三相电流信号进行12次谐波分析,MODBUS通信协议的支持。

关键词: 万能式断路器, 反时限, 瞬时保护, 双电源供电

Abstract:

This paper proposed a dual power supply circuit to increase the system reliability of the electronic controller.Based on the low-power design concept from the aspects of device selection and software design,the electronic controller system is designed,including a high-accuracy multi-channel AC signal acquisition module,magnetically isolated RS-485 communication module,LCD display and input module,central controller module and so on.The power consumption of the tested system is 0.79 W,which is 71% higher than that of the conventional products,and the current accuracy is 48% higher.The system adopts a multi-tasking real-time operating system,and samples current and voltage signals through multiple acquisition modules to calculate current and voltage values in real time.Considering the controller’s thermal memory function,the 12-order harmonic analysis of the three-phase current signal is realized,and the MODBUS communication protocol is supported.

Key words: air circuit breaker(ACB), inverse time, instantaneous protection characteristic, dual power supply

中图分类号:

TM561

张海跟, 舒亮, 游颖敏, 陈冲, 洪邦光. ACB电子控制器关键技术研究^*[J]. 电器与能效管理技术, 2020, 593(8): 23-28.

ZHANG Haigen, SHU Liang, YOU Yingmin, CHEN Chong, HONG Bangguang. Research and Implementation of Key Technology of Air Circuit Breaker Electronic Controller[J]. LOW VOLTAGE APPARATUS, 2020, 593(8): 23-28.

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参考文献 10

[1]	SHU L, GUO L, WU G C, et al. Research of thermal protection characteristics for circuit breakers considering nonlinear electro-thermal-structural[J]. Applied Thermal Engineering 2019,156:85-94.
[2]	舒亮, 刘源, 崔永昊, 等. 断路器测试中电流和功率因数补偿的组合控制策略研究[J]. 电器与能效管理技术, 2019(10):57-63.
[3]	路红伟, 张素军. 浅谈反时限电流保护与定时限电流保护[J]. 科学实践, 2011(1):287-288.
[4]	邢瑞江. 反时限电流保护的应用[J]. 继电保护技术, 2008(4):17-19.
[5]	牟龙华, 邢锦磊. 反时限过载保护精确算法[J]. 电力自动化设备, 2008(6):36-38.
[6]	吴国军, 南寅, 魏占勇, 等. 万能式断路器的MCR/HSISC保护[J]. 低压电器, 2010(1):58-62.
[7]	CHEN K, CHE D G, LI X W, et al. A method to analyze the short-time withstand current capability for air circuit breaker[C]// 2011 1st International Conference on Electric Power Equipment-Switching Technology, 2011:182-186.
[8]	TU Z X. Overcurrent protection of marine air DC circuit breaker[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2010,38(6):67-70.
[9]	张建成, 孟宪锋. 控制与保护开关电器热记忆试验测试装置[J]. 电器与能效管理技术, 2019(18):68-71.
[10]	陈冲, 游颖敏, 吴桂初. 基于交流采样技术的电能参数测量仪器研究[J]. 电子测量技术, 2011(7):16-19.

硬件模块	I_ON/mA	I_OFF/mA	模块功耗/mW
通信模块	66.2	44.5	258.0
单LED灯	66.3	61.6	56.0
I2C	66.4	65.4	11.9
RTC	65.4	64.7	8.3
UART	62.3	61.6	8.3
ADC	62.9	58.9	47.6

I/A	T₁/s	T₂/s
110	206.682	206.683
130	64.691	56.217
150	38.317	33.006
230	11.834	9.923
350	4.623	4.169
410	3.275	3.024
430	2.991	2.833
440	2.839	2.177
480	2.370	1.931
500	2.352	1.904

样品	控制器功耗 /W	瞬断时间 /ms	电流采样精度/%	样品C性能相对提升 (功耗,瞬断时间,采样精度)/%
A	2.77	105.7	2.5	71 74 44
B	2.58	77.9	2.7	69 64 48
C	0.79	27.8	1.4	— — —

谐波次数/次	谐波电流/A	检测结果			THD /%	误差 /%
谐波次数/次	谐波电流/A	谐波次数/次	电流 /A		THD /%	误差 /%
3	10.00	3		6.57	6.75	3.25
5	10.00	5		6.66	6.66	3.34
7	10.00	7		6.81	6.81	3.19
9	10.00	9		5.33	5.33	4.67
12	10.00	12		5.54	5.54	4.46
	5.00	3		3.77	—	—
3、5、9	5.00	5		3.68	6.40	2.26
	5.00	9		3.63	—	—

ACB电子控制器关键技术研究^*

Research and Implementation of Key Technology of Air Circuit Breaker Electronic Controller

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