小电容变频器及感应电机回馈能量分析

doi:10.19595/j.cnki.1000-6753.tces.181817

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (50856 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Large electrolytic capacitors used in the common frequency converter usually cause many defects such as larger size, higher cost and more faults. One small electrolytic capacitor frequency converter was proposed along with its control strategy. Firstly, the converter topology structure was presented. The converter DC-link was in parallel with a small switched capacitor. Then, energy feedback specialties of an induction motor fed by the frequency converter were analyzed when the converter was controlled by different switch states. Energy feedback equation of the induction motor in the steady state was also deduced. Next, parameter calculating method of the small capacitor frequency converter was demonstrated along with its control strategy. Finally, the simulation model and the experimental system were built to verify these conclusions. Study results show that energy of the induction motor can't flow back to the DC-link of the frequency converter while the converter is controlled by a zero-voltage vector. The energy was consumed by stator resistances of the induction motor. Meanwhile, rotor speed of the induction motor declines very fast. When open circuit zero voltage vector is working, feedback energy of the induction motor is impeded by DC-link voltage of the converter and the feedback energy is very small, rotor speeds of the induction motor declines slowly. The capacitor of the proposed converter is one-tenth of the traditional on the condition that the DC-link voltage is allowed to rise one hundred volts. The experimental results verified the conclusions.

Key words： Induction motors energy feedback small capacitor frequency converter switched capacitor

Received: 21 November 2018 Published: 28 February 2020

PACS:

TM921

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Xie Shihong
	Meng Yanjing
	Gao Yuqi
	Ma Huihai

Cite this article:

Xie Shihong,Meng Yanjing,Gao Yuqi等. Analysis About Small Capacitor Frequency Converter and Feedback Energy of Induction Motors[J]. Transactions of China Electrotechnical Society, 2020, 35(4): 734-744.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181817 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I4/734

[1] 魏文婧, 胡海涛, 王科, 等. 基于铁路功率调节器的高速铁路牵引供电系统储能方案及控制策略[J].电工技术学报, 2019, 34(6): 1290-1299.
Wei Wenjing, Hu Haitao, Wang Ke, et al.Energy storage scheme and control strategies of high-speed railway based on railway power conditioner[J]. Transactions of China Electrotechnical Society, 2019, 34(6): 1290-1299.
[2] 刘和平, 刘庆, 张威, 等. 电动汽车用感应电机削弱振动和噪声的随机PWM控制策略[J]. 电工技术学报, 2019, 34(7): 1488-1495.
Liu Heping, Liu Qing, Zhang Wei, et al.Random PWM technique for acoustic noise and vibration reduction in induction motors used by electric vehicles[J]. Transactions of China Electrotechnical Society, 2019, 34(7): 1488-1495.
[3] 张冬冬, 郭新志, 安睿驰, 等. 基于DFT的感应电机转子谐波磁通密度高效分离方法及负载条件下变频电机转子铁耗特性[J]. 电工技术学报, 2019, 34(1): 75-83.
Zhang Dongdong, Guo Xinzhi, An Ruichi, et al.A separation method of rotor flux density harmonics based on DFT and fine analysis rotor iron losses in inverter-fed induction motors[J]. Transactions of China Electrotechnical Society, 2019, 34(1): 75-83.
[4] 王立乔, 崔舒敏, 陈梅. 功率解耦型无电解电容PFC电路并联补偿控制[J]. 电工技术学报, 2019, 34(3): 516-528.
Wang Liqiao, Cui Shumin, Chen Mei.Parallel compensation control of power factor corrector without electrolytic capacitor by power decoupling[J]. Transactions of China Electrotechnical Society, 2019, 34(3): 516-528.
[5] 卢东斌, 欧阳明高, 谷靖, 等. 电动汽车永磁同步电机最优制动能量回馈控制[J]. 中国电机工程学报, 2013, 33(3): 83-91, 12.
Lu Dongbin, Ouyang Minggao, Gu Jing, et al.Optimal regenerative braking control for permanent magnet synchronous motors in electric vehicles[J]. Proceedings of the CSEE, 2013, 33(3): 83-91, 12.
[6] Yin Lu, Zhao Zhengming, Lu Ting, et al.An improved DC-link voltage fast control scheme for a PWM rectifier-inverter system[J]. IEEE Transactions on Industry Application, 2014, 50(1): 462-473.
[7] 张华强, 孟凡华, 梁志平. 直接功率和转矩一体化控制的能量回馈变频器[J]. 电机与控制学报, 2013, 17(10): 19-26.
Zhang Huaqiang, Meng Fanhua, Liang Zhiping.Direct power and torque integration control for energy feedback converter[J]. Electric Machines and Control, 2013, 17(10): 19-26.
[8] 张承慧, 李珂, 杜春水, 等. 基于幅相控制的变频器能量回馈控制系统[J]. 电工技术学报, 2005, 20(2): 41-45.
Zhang Chenghui, Li Ke, Du Chunshui, et al.An energy-feedback control system of inverter based on phase and amplitude control[J]. Transactions of China Electrotechnical Society, 2005, 20(2): 41-45.
[9] 宋小亮, 蔚兰, 陈国呈, 等. 基于直接电流控制的电机能量回馈器研究[J]. 电力电子技术, 2010, 44(5): 49-51.
Song Xiaoliang, Yu Lan, Chen Guocheng, et al.The study of motor energy feedback system based on direct current control[J]. Power Electronics, 2010, 44(5): 49-51.
[10] 尹忠刚, 钟彦儒, 刘静. 基于PWM整流器双PFC模型的电机能量回馈系统[J]. 电力自动化设备, 2010, 30(1): 36-40.
Yin Zhonggang, Zhong Yanru, Liu Jing.Motor energy feedback system based on dual-PFC model of PWM rectifier[J]. Electric Power Automation Equipment, 2010, 30(1): 36-40.
[11] 韩啸, 高强, 寇佳宝, 等. 负载换流逆变器驱动同步电机能量回馈的研究[J]. 电气传动, 2018, 48(1): 13-18.
Han Xiao, Gao Qiang, Kou Jiabao, et al.Research on energy feedback control of synchronous motor driven by load commutated inverter[J]. Electric Drive, 2018, 48(1): 13-18.
[12] Hyun-Sam Jung, Seung-Jun Chee, Seung-Ki Sul, et al.Control of three-phase inverter for AC motor drive with small DC-link capacitor fed by single-phase AC source[J]. IEEE Transactions on Industry Appli- cations, 2014, 50(2): 1074-1081.
[13] 霍军亚, 王高林, 赵楠楠, 等. 无电解电容电机驱动系统谐振抑制控制策略[J]. 电工技术学报, 2018, 33(24): 5641-5648.
Huo Junya, Wang Gaolin, Zhao Nannan, et al.Resonance suppression control strategy of elec- trolytic capacitor-less motor drives[J]. Transactions of China Electrotechnical Society, 2018, 33(24): 5641-5648.
[14] Yeongrack Son, Jung-Ik Ha.Discontinuous grid current control of motor drive system with single- phase diode rectifier and small DC-link capacitor[J]. IEEE Transactions on Power Electronics, 2017, 32(2): 1324-1334.
[15] Zhou Yufei, Huang Wenxin, Hong Feng.Single- phase input variable-speed AC motor system based on an electrolytic capacitor-less single-stage Boost three-phase inverter[J]. IEEE Transactions on Power Electronics, 2016, 31(10): 7043-7052.
[16] 周玉斐, 黄文新, 赵健伍. 单相交流输入的无电解电容抽头电感单级升压逆变器在交流调速系统中的应用[J]. 中国电机工程学报, 2014, 34(12): 1836-1843.
Zhou Yufei, Huang Wenxin, Zhao Jianwu.An adjustable-speed system with single-phase AC input based on electrolytic capacitor-less tapped-inductor single-stage Boost inverters[J]. Proceedings of the CSEE, 2014, 34(12): 1836-1843.
[17] 段明亮, 荣为青, 孟彦京. 一种带开关回馈电容变频器的仿真研究[J]. 电子技术应用, 2017, 43(12): 133-136, 142.
Duan Mingliang, Rong Weiqing, Meng Yanjing.Simulation research on a switched feedback capacitor inverter[J]. Power Supply Technology and Its Appli- cation, 2017,43(12): 133-136, 142.
[18] 孟彦京, 李宏涛, 张君燕. 一种新型小电容变频器及其调制技术的研究[J]. 微特电机, 2018, 46(7): 66-70.
Meng Yanjing, Li Hongtao, Zhang Junyan.Research on a novel small capacitance inverter and its modulation[J]. Small & Special Electrical Machines, 2018, 46(7): 66-70.
[19] 孟彦京, 周鹏, 马汇海, 等. SVPWM中的开路零矢量及其对磁链轨迹的影响研究[J]. 电气传动, 2016, 46(1): 19-23.
Meng Yanjing, Zhou Peng, Ma Huihai, et al.Study of open-circuit zero voltage vector and its effect on flux trajectory in SVPWM[J]. Electric Drive, 2016, 46(1): 19-23.
[20] 张海涛, 赵争鸣, 孟朔, 等. 三电平变频调速系统的三相短路制动仿真与实验分析[J]. 中国电机工程学报, 2004, 24(8): 59-63.
Zhang Haitao, Zhao Zhengming, Meng Shuo, et al.The simulation and experimental analysis of short- circuit breaking for 3-level inverter-motor systems[J]. Proceedings of the CSEE, 2004, 24(8): 59-63.
[21] 汤蕴璆, 王成元. 交流电机动态分析[M]. 2版. 北京: 机械工业出版社, 2015.
[22] 谢仕宏, 孟彦京, 陈君, 等. 感应电机离散变频转矩脉动原因及改进方法[J]. 电机与控制学报, 2018, 22(10): 103-111.
Xie Shihong, Meng Yanjing, Chen Jun, et al.Cause and improvement of the discrete variable frequency torque ripple of induction motor[J]. Electric Machines and Control, 2018, 22(10): 103-111.