On-load Tap Changer Distribution Transformer Based on Hybrid-switch Cascaded H-bridge Structure

被引：0
|
作者：
Wang C. [1 ]
Liu C. [1 ]
Yang H. [1 ]
Chen G. [1 ]
机构：
[1] School of Electrical Engineering, Zhejiang University, Hangzhou
来源：
Gaodianya Jishu/High Voltage Engineering | 2022年 / 48卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Cascaded H-bridge structure; Distribution transformer; Hybrid switch; On-load tap changer; State matrix; Windings' coding;
D O I：
10.13336/j.1003-6520.hve.20201486
中图分类号：
学科分类号：
摘要：
In order to achieve flexible and reliable voltage regulation of distribution transformers, a hybrid-switch cascaded H-bridge module is used as a new type of on-load tap changer. In a steady state, the mechanical switch in the hybrid switch transmits the load current resulting in low steady-state losses. During the tap change process, the power electronic switch assists the mechanical switch in the hybrid switch to achieve arc-free breaking, and the timing control method of the power electronic switches is used to limit the generation of circulation. In the H-bridge connection structure, the on-off of the hybrid switch changes the state of the regulated winding connected to the main circuit. The fewest regulated windings can be combined with coding strategy to achieve the maximum regulation states, and the number of hybrid switches and the number of regulated windings can be greatly saved. The results show that the distribution transformer in which the proposed new on-load tap changer and its control method are adopted can achieve cross-stage, rapid, wide-range and arc-free voltage adjustment. © 2022, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
引用
收藏
页码：1987 / 1996
页数：9
相关论文
共 18 条
  • [1] RANAMUKA D, AGALGAONKAR A P, MUTTAQI K M., Online voltage control in distribution systems with multiple voltage regulating devices, IEEE Transactions on Sustainable Energy, 5, 2, pp. 617-628, (2014)
  • [2] ZHANG Jin, GENG Guangchao, JIANG Quanyuan, Et al., Multi-objective stochastic operation optimization for distribution network with flexible multi-state switches, High Voltage Engineering, 45, 10, pp. 3140-3148, (2019)
  • [3] KABIRI R, HOLMES D G, MCGRATH B P, Et al., LV grid voltage regulation using transformer electronic tap changing, with PV inverter reactive power injection, IEEE Journal of Emerging and Selected Topics in Power Electronics, 3, 4, pp. 1182-1192, (2015)
  • [4] MUTTAQI K M, LE A D T, NEGNEVITSKY M, Et al., A coordinated voltage control approach for coordination of OLTC, voltage regulator, and DG to regulate voltage in a distribution feeder, IEEE Transactions on Industry Applications, 51, 2, pp. 1239-1248, (2015)
  • [5] HASAN E O, HATATA A Y, BADRAN E A E, Et al., Voltage control of distribution systems using electronic OLTC, 2018 Twentieth International Middle East Power Systems Conference (MEPCON), pp. 845-849, (2018)
  • [6] RIAZ F, WETZER J, MOR A R., Innovative approach toward an algorithm for automated defect recognition for on-load-tap changers, CIRED-Open Access Proceedings Journal, 2017, 1, pp. 246-250, (2017)
  • [7] DE OLIVEIRA QUEVEDO J, CAZAKEVICIUS F E, BELTRAME R C, Et al., Analysis and design of an electronic on-load tap changer distribution transformer for automatic voltage regulation, IEEE Transactions on Industrial Electronics, 64, 1, pp. 883-894, (2017)
  • [8] ZHAO Yulin, LI Haifeng, NIU Zehan, Et al., A new scheme of contactless on-load automatic voltage regulation for distribution transformers, Power System Technology, 40, 12, pp. 3888-3893, (2016)
  • [9] Thyristor assisting arc extinguishing combined type on-load tap changer
  • [10] LIAO Minfu, HUANG Jinqiang, GE Guowei, Et al., Development and research of native and foreign hybrid circuit breaker, High Voltage Engineering, 42, 6, pp. 1688-1694, (2016)
12