|
|
|
| Voltage sag retainment scheme for AC contactors based on flexible switching |
| YU Hongqian1, SHEN Xiaoling2, ZENG Wei2, XIA Hongchao2, CHEN Sha2 |
1. Wanhua Chemical (Fujian) Co., Ltd, Fuqing, Fujian 350300;
2. CET Electric Technology Inc., Shenzhen, Guangdong 518000 |
|
|
|
|
Abstract AC contactors are widely used in low voltage distribution systems. The voltage dip leads to the release of AC contactor, thus affecting the safety production of industrial enterprises. To solve this problem, there are two schemes mainly adopted: contactor restart after voltage dip and voltage dip retainment. However, these schemes do not consider the vibration and impact of AC contactor contacts in the actual implementation process. In order to solve the problem of contactor contact impact during voltage dip, this paper proposes the concept of AC contactor flexible switching and a voltage dip retainment for AC contactor closed during voltage dip based on flexible switching. This scheme can adaptively output DC voltage to ensure that AC contactors with different capacities can be stably closed during voltage dip, and can avoid the vibration and impact of contactor contacts during voltage dip and switching. The effectiveness of this scheme is verified by the actual device test.
|
|
Received: 30 November 2022
|
|
|
|
| Cite this article: |
|
YU Hongqian,SHEN Xiaoling,ZENG Wei等. Voltage sag retainment scheme for AC contactors based on flexible switching[J]. Electrical Engineering, 2023, 24(3): 16-22.
|
|
|
|
| URL: |
|
http://dqjs.cesmedia.cn/EN/Y2023/V24/I3/16
|
[1] Low-voltage switchgear and controlgear: part 4-1: contactors and motor-starters: electromechanical con- tactors and motor-starters: IEC 60947-4-1:2009[S].
[2] 电能质量电压暂降与短时中断: GB/T 30137—2013[S] GB/T 30137—2013[S]. 北京: 中国标准出版社, 2014.
[3] 王野, 姜万东, 迟玉国. 防晃电智能控制模块设计与分析[J]. 电气技术, 2015, 16(9): 43-46, 94.
[4] 姜万东, 周海涛, 杜佳. 交流接触器防晃电方案对比研究[J]. 电气技术, 2017, 18(10): 115-118.
[5] 姜万东, 周海涛, 王晓堃, 等. 低压变频器防晃电方案研究[J]. 电气技术, 2017, 18(9): 81-84.
[6] 李高桥. 防晃电技术的原理及应用[J]. 自动化与仪器仪表, 2019(11): 177-180.
[7] 武彦诚. 110kV单相接地短路引起0.4kV电动机停机事件分析[J]. 电气技术, 2019, 20(增刊1): 73-76, 81.
[8] 龚博, 赵建阳, 刘会巧. 基于静止无功发生器分相控制的电压暂降治理技术[J]. 电气技术, 2020, 21(9): 33-38, 44.
[9] 吴颖, 蒋衍, 李为明, 等. 厦门翔安地区电压暂降问题分析及防治措施[J]. 电气技术, 2019, 20(7): 52-56.
[10] 姜万东. 低压电动机保护与防晃电装置的研制[J].电气技术, 2018, 19(12): 87-91, 96.
[11] 杨东升, 马占超, 高筱婷, 等. 交流接触器晃电保护无隙切换拓扑结构研究[J]. 电工技术学报, 2018, 33(11): 2431-2438.
[12] 唐昭晖, 许志红. 基于响应面法的交流接触器弹簧系统优化设计方法[J]. 电工技术学报, 2022, 37(2): 515-527.
[13] 杜立. 动态电压恢复器电压暂降检测与补偿方法研究[D]. 镇江: 江苏大学, 2017.
[14] 杨达亮, 卢子广, 杭乃善. 新型单相电压暂降实时检测方法及实现[J]. 电力自动化设备, 2015, 35(2): 110-113. |
|
|
|
2023, Vol. 24 
