摘要
针对多相电机统一SVPWM调制实现问题及多相电机全阶观测器无速度传感器矢量控制的实现问题,在传统三相电机零序电压注入SPWM实现SVPWM调制的基础上,推导了多相电机统一SVPWM实现方法和多相电机矢量控制统一坐标变换理论及基于全阶观测器的无速度传感器矢量控制理论。以五相异步电机为例,研究了零序电压注入方法下的SVPWM电压利用率提高百分比、五相异步电机基于全阶观测器的无速度传感器矢量控制,并在五相异步电机实验平台上进行了实验验证。实验结果表明提出的统一SVPWM调制方法可以提高电压利用率、优化谐波性能。统一多相电机全阶观测器无速度传感器矢量控制可以实现多相电机无传感器控制、减小系统成本、提高系统可靠性。
Aiming at realization of multiphase motor unified SVPWM modulation and the realization ofmultijDhase motor fi ll-order obserer sensorless vector control based on traditional tro sequence voltage injection SPWM to achieve SVPWM modulation, derivation of multiphase mfied SVPWM and multiphase motor sensorless vector control was proposed. Taking tchronous motor as an example, the percentage of SVPWM voltage utilization in the zero-sequence voltage injection method was studied. The five-{）hase asynchronous motor was carried out tliat based on the sen-sorless vector control of tlie full order obserer. The validity of proposed metliod was verified on five pha-ses asynchronous motor experimental platform. The experimental results show that the pSVPWM modulation method can improve the voltage utilization and optimize the harmonic performance.Uniform multijohase motor full-order observer sensorless vector control can achieve multijohase msorless control, reduce system cost and improve system reliability.
出处
《电机与控制学报》
EI
CSCD
北大核心
2018年第1期61-71,共11页
Electric Machines and Control
基金
国家自然科学基金(51177056)
新疆大学优秀博士生创新基金(XJUCX-2013010)
关键词
统一SVPWM&全阶观测器
无速度传感器
电压利用率
多相电机
unified space vector pulse width modulation
full order observer
sensorless control
voltageutilization
multiphase motor
