机械弹性储能用永磁同步电机多源谐波提取及统一抑制  

Multi-Source Harmonic Extraction and Unified Suppression of Permanent Magnet Synchronous Motor for Mechanical Elastic Energy Storage

作　　者：余洋 余宗哲[1,2] 王孟云 冯路婧 张千慧 Yu Yang;Yu Zongzhe;Wang Mengyun;Feng Lujing;Zhang Qianhui(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University,Baoding 071003 China;Key Laboratory of Distributed Energy Storage and Microgrid of Hebei Province North China Electric Power University,Baoding 071003 China;Xinxiang Power Supply Company of State Grid,Xinxiang 453700 China)

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),保定071003 [2]华北电力大学河北省分布式储能与微网重点实验室,保定071003 [3]国网新乡供电公司,新乡453700

出　　处：《电工技术学报》2024年第4期1033-1045,1073,共14页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(52077078);河北省自然科学基金(E2019502163)资助项目。

摘　　要：针对柔性涡簧振动和电力电子装置等引起机械弹性储能(MEES)系统机械侧谐波难以准确建模、多源谐波无法整体表征及统一抑制的问题,该文提出MEES用永磁同步电机多源谐波提取及统一抑制方法。首先,建立MEES系统数学模型,利用电机转速谐波对多源谐波进行整体表征;然后,提出融合奇异值差分的矩阵束算法,利用其对含噪实测转速数据进行处理以获取包含不同频率成分的多源谐波信息;最后,设计定子电流矢量定向下基于反推控制的多源谐波统一抑制算法,完成对不同频率成分谐波的同时抑制。仿真和实验结果表明,利用融合奇异值差分的矩阵束算法能快速、准确地识别转速信号中的多源谐波成分,统一抑制算法有效降低了多源谐波导致的电磁转矩脉动,改善了系统运行性能。The vibration of flexible spring and power electronic equipment can cause multi-source harmonics in mechanical elastic energy storage(MEES)systems.Mechanical side harmonics are challenging to model accurately,and the multi-source harmonics cannot be characterized and suppressed uniformly in the MEES system.Therefore,a multi-source harmonics extraction and unified suppression method of permanent magnet synchronous motor(PMSM)is proposed for the MEES system.Firstly,the speed and electromagnetic torque of PMSM are used as a bridge,and the characterization of multi-source harmonics is modelled using the motor speed harmonics.The expression of multi-source and motor speed harmonics is derived from the motor rotor equation of motion,and the overall characterization of mechanical side and electrical side harmonics is realized.Then,in terms of multi-source harmonics information extraction,considering the existence of high and low-frequency harmonic signal components in the MEES system and the low signal-to-noise ratio,a matrix pencil algorithm combined with singular value difference is proposed.The matrix called Hankel is constructed using the measured rotor speed containing noise.Subsequently,the singular value difference algorithm is utilized to find the energy mutation point and determine the maximum number of modes of the multi-source harmonic signals.The multi-source harmonics information with different frequency components can be extracted accurately.Finally,based on the magnetic co-energy model of electromagnetic torque of PMSM and backstepping control,a unified suppression algorithm of multi-source harmonics under stator current vector orientation is designed to suppress the harmonics of different frequencies.To verify the control performance of the multi-source harmonics suppression controller,simulations and prototype system experiments are conducted.Simulation results show that the maximum error of high-frequency harmonics information extracted is about 1%,and the maximum error of low-frequency harmonics infor

关 键 词：机械弹性储能 永磁同步电机 矩阵束算法 多源谐波提取及抑制 反推控制 

分 类 号：TM73[电气工程—电力系统及自动化]