永磁同步电机转矩预测虚拟电压矢量控制
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摘要
为了减少永磁同步电机转矩脉动,缩短控制周期,提出转矩预测虚拟电压矢量控制。该方法可在1个控制周期输出多个电压矢量,达到跟踪转矩和磁链的目的。同时,根据转矩和磁链的当前状态选出满足相应规定的3种电压矢量组,再通过滚动优化从中选出最优电压矢量组,显著减少算法的计算量。仿真和实验结果表明:所提方法可以有效减少电流波动,且具有更好的稳态性能。
In order to reduce the torque ripple and the control cycle of the PMSM,the torque predictive virtual voltage vectors was proposed. This method could output several voltage vectors in each control period to achieve the purpose of tracking torque and flux linkage. Meanwhile,the only three voltage vector sets were selected to satisfy the state of torque and flux,and then the optimum voltage vector set was selected by rolling optimization. Hence,the control computational burden was significantly reduced. The simulation and experimental results show that the proposed method can reduce the current ripples effectively and achieve good static performance.
In order to reduce the torque ripple and the control cycle of the PMSM,the torque predictive virtual voltage vectors was proposed. This method could output several voltage vectors in each control period to achieve the purpose of tracking torque and flux linkage. Meanwhile,the only three voltage vector sets were selected to satisfy the state of torque and flux,and then the optimum voltage vector set was selected by rolling optimization. Hence,the control computational burden was significantly reduced. The simulation and experimental results show that the proposed method can reduce the current ripples effectively and achieve good static performance.
引文
[1]曹冬梅,王刚,仇国庆.基于PSO-ADRC的永磁同步电机矢量控制的研究与实现[J].电气传动,2016,46(11):15-19.
[2]杨立永,翟飞,陈智刚.基于死区补偿的PMSM无传感器矢量控制方法[J].电气传动,2015,45(12):8-11.
[3]孙旭霞,高沁源,孙伟.基于SVPWM的永磁同步电机直接转矩控制系统[J].电气传动,2016,46(11):3-6.
[4]邢岩,王旭,刘岩,等.基于空间矢量调制的永磁同步电机新型直接转矩控制策略[J].电气传动,2013,43(S1):6-10.
[5]沈坤,章兢,王坚.一种多步预测的变流器有限控制集模型预测控制算法[J].中国电机工程学报,2012,32(33):37-44,173.
[6]王庚,杨明,牛里,等.永磁同步电机电流预测控制电流静差消除算法[J].中国电机工程学报,2015,35(10):2544-2551.
[7]徐艳平,周钦,雷亚洲,等.永磁同步电机改进占空比模型预测转矩控制方法[J].电气传动,2017,47(5):14-17,44.
[8]徐艳平,张保程,周钦.永磁同步电机双矢量模型预测电流控制[J].电工技术学报,2017,32(20):222-230.
[2]杨立永,翟飞,陈智刚.基于死区补偿的PMSM无传感器矢量控制方法[J].电气传动,2015,45(12):8-11.
[3]孙旭霞,高沁源,孙伟.基于SVPWM的永磁同步电机直接转矩控制系统[J].电气传动,2016,46(11):3-6.
[4]邢岩,王旭,刘岩,等.基于空间矢量调制的永磁同步电机新型直接转矩控制策略[J].电气传动,2013,43(S1):6-10.
[5]沈坤,章兢,王坚.一种多步预测的变流器有限控制集模型预测控制算法[J].中国电机工程学报,2012,32(33):37-44,173.
[6]王庚,杨明,牛里,等.永磁同步电机电流预测控制电流静差消除算法[J].中国电机工程学报,2015,35(10):2544-2551.
[7]徐艳平,周钦,雷亚洲,等.永磁同步电机改进占空比模型预测转矩控制方法[J].电气传动,2017,47(5):14-17,44.
[8]徐艳平,张保程,周钦.永磁同步电机双矢量模型预测电流控制[J].电工技术学报,2017,32(20):222-230.