串联型12脉波整流器无源脉波倍增策略

doi:10.19595/j.cnki.1000-6753.tces.L10084

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (3276 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Multi-pulse rectifiers (MPRs) are converters that the output voltage has more than 6 pulses per power cycle. According to the connection of the rectifier bridges, MPRs are divided into parallel-type and series-type. Compared to the parallel-type MPRs, the series-type MPRs have higher output voltage level. Thus the series-type MPRs are widely served as interfaces between AC generator and DC bus such as aviation power system and ship power system. However, the nonlinearity of the rectifier devices leading to lots of harmonic pollution to the power grid.
To improve the power quality and reliability of series-connected MPRs, a passive pulse doubling strategy is proposed. Through installing a set of ancillary circuit at DC link to inject three-step voltage whose frequency is six times of the supply frequency between the two rectifier bridges to suppress the low order harmonics of the rectifier, and the level of the three-step voltage is determined by the turn ratio of the injection transformer. The ancillary circuit is composed of a single-phase injection transformer and two diodes. According to the topology of the converter, the operation modes of the rectifier are analyzed and the operating waveforms of the rectifier are researched. Based on the operation mode, the input voltage and input current of the rectifier are analyzed, then the relationship between the input voltage and the turn ratio of the injection transformer is obtained. When the turn ratio of the injection transformer is 3 : 2 : 6, the THD value of the input voltage is the lowest, and each operation mode has the same duration, the lowest theorical THD value of the input voltage is about 7.74%.
To verify the above theoretical analysis, the laboratorial platform is built, and the circuits are debugged. The input phase voltage of the rectifier is about 220 V and the power level of the converter is about 2 kV·A. The results of experiment shows that the input voltage of the rectifier with pulse doubling strategy is modulated from 12-step wave to 24-step wave, the input voltage and input current of the rectifier are closer to sine wave, the experimental results of the THD value of input voltage decrease from 8.6% to 4.4%, and the experimental results of the THD value of input current decrease from 6.5% to 2.6%, which up to the standard of IEEE 519—1992. The load voltage and current remain constant; The capacity of the injection transformer is about 2% of the load power, which is reduced by 15% to 35% compared to the previous research. The proposed pulse doubling strategy has considerable harmonic suppression ability with low cost. The proposed rectifier has the advantages of simple structure, high reliability, low cost, and good harmonic suppression ability, so that it can be served as a general interface of AC and DC bus. Besides, according to the previous research, the more steps of the injection voltage, the better the harmonic suppression ability, the proposed pulse doubling strategy can serve as the basic unit for other harmonic suppression strategy with better harmonic suppression ability.

Key words： Series-connected multi-pulse rectifier passive pulse doubling strategy power quality

Received: 13 January 2023

PACS:

TM461

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Li Quanhui
	Li Feng
	Yin Xinyu
	Wu Jinmeng
	Meng Fangang

Cite this article:

Li Quanhui,Li Feng,Yin Xinyu等. Passive Pulse Doubling Strategy for Series-Connected 12-Pulse Rectifier[J]. Transactions of China Electrotechnical Society, 2023, 38(zk1): 136-146.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L10084 OR https://dgjsxb.ces-transaction.com/EN/Y2023/V38/Izk1/136

[1] 廉玉欣, 杨世彦, 杨威. 基于非常规平衡电抗器的直流侧谐波抑制方法[J]. 电工技术学报, 2021, 36(18): 3957-3968.
Lian Yuxin, Yang Shiyan, Yang Wei.The harmonic reduction method at DC link based on unconventional interphase reactor[J]. Transactions of China Electrotechnical Society, 2021, 36(18): 3957-3968.
[2] 史艳博, 葛红娟, 胡寅逍,等. 基于无源半桥辅助电路的24脉航空变压整流器[J]. 电工技术学报, 2022, 37(增刊1): 257-266.
Shi Yanbo, Ge Hongjuan, Hu Yinxiao, et al.24-pulse aviation transformer rectifier based on passive half-bridge auxiliary circuit[J]. Transactions of China Electrotechnical Society, 2022, 37(S1): 257-266.
[3] 廉玉欣, 杨世彦, 杨威. 基于非常规平衡电抗器的直流侧谐波抑制方法[J]. 电工技术学报, 2021, 36(18): 3957-3968.
Lian Yuxin, Yang Shiyan, Yang Wei.The harmonic reduction method at DC link based on unconventional interphase reactor[J]. Transactions of China Electrotechnical Society, 2021, 36(18): 3957-3968.
[4] 孟凡刚, 姜彤, 郭依宁. 基于电力电子变压器的串联型12脉波整流器[J]. 电机与控制学报, 2021, 25(5): 52-59.
Meng Fangang, Jiang Tong, Guo Yining.Series-connected 12-pulse rectifier based on power electronic transformer[J]. Electric Machines and Control, 2021, 25(5): 52-59.
[5] 高美金, 狄谦, 王婷婷, 等. 基于固态变压器的移动变电站综合性能提升方法[J]. 电工技术学报, 2021, 36(11): 2315-2324.
Gao Meijin, Di Qian, Wang Tingting, et al.Improving the comprehensive performance of mobile substation based on solid state transformer[J]. Transactions of China Electrotechnical Society, 2021, 36(11): 2315-2324.
[6] 朱旭豪, 李容冠, 陈武, 等. 模块化多电平开关串联型直流变压器的电流优化控制策略[J]. 电力系统自动化, 2023, 47(10): 153-163.
Zhu Xuhao, Li Rongguan, Chen Wu, et al.Current optimal control strategy for DC transformer with modular multilevel structure and series-connected switches[J]. Automation of Electric Power Systems, 2023, 47(10): 153-163.
[7] Meng Fangang, Xu Xiaona, Gao Lei.A simple harmonic reduction method in multipulse rectifier using passive devices[J]. IEEE Transactions on Industrial Informatics, 2017, 13(5): 2680-2692.
[8] Wang Jingfang, Chen Anchen, Yao Xuliang, et al.A simple 24-pulse rectifier employing an auxiliary pulse-doubling circuit[J]. IEEE Transactions on Power Electronics, 2022, 37(7): 8392-8403.
[9] Wang Jingfang, Lü Yusheng, Li Lei, et al.A 24-pulse rectifier with a passive auxiliary current injection circuit at DC side[J]. IEEE Transactions on Power Electronics, 2022, 37(9): 11109-11123.
[10] Meng Fangang, Du Qingxiao, Wang Lin, et al.A series-connected 24-pulse rectifier using passive voltage harmonic injection method at DC-link[J]. IEEE Transactions on Power Electronics, 2019, 34(9): 8503-8512.
[11] Chivite-Zabalza F J, Forsyth A J. A simple, passive 24-pulse AC-DC converter with inherent load balancing using harmonic voltage injection[C]//2005 IEEE 36th Power Electronics Specialists Conference, Dresden, Germany, 2006: 76-82.
[12] Arrillaga J, Villablanca M.24-pulse HVDC conversion[J]. IEE Proceedings C-Generation, Transmission and Distribution, 1991, 138(1): 57.
[13] Arrillaga J, Naturally commutated thyristor-controlled high-pulse var compensator[J]. IEE Proceedings-Generation, Transmission and Distribution, 1995, 142(2): 219-224.
[14] Liu Yonghe, Arrillaga J, Watson N R.A new high-pulse voltage-sourced converter for HVDC transmission[J]. IEEE Transactions on Power Delivery, 2003, 18(4): 1388-1393.
[15] Perera L B, Liu Y H, Arrillaga J, et al.A five-level reinjection scheme for high pulse-voltage source conversion[J]. IEE Proceedings-Electric Power Applications, 2005, 152(2): 209-216.
[16] Meng Fangang, Li Taiqi, Wang Lin, et al.Series-connected 36-pulse rectifier using a hybrid harmonic injection method[J]. IET Power Electronics, 2020, 13(17): 4112-4116.
[17] Chivite-Zabalza F J, Forsyth A J, Araujo-Vargas I. 36-pulse hybrid ripple injection for high-performance aerospace rectifiers[J]. IEEE Transactions on Industry Applications, 2009, 45(3): 992-999.
[18] IEEE 519-1992 IEEE recommended practices and requirement for harmonic control in electric power system[S]. IEEE Industry Applications Society/Power Engineering Society, 1993.