永磁同步电机模型预测的优化控制策略
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摘要
为进一步改善在永磁同步电机(PMSM)模型预测控制(MPC)中,针对逆变器开关状态有限、预测精度不高导致电流脉动较大,稳态精度较差等问题,提出了一种通过合成虚拟电压矢量,拓展有限控制集,优化价值函数相结合的控制策略,可以提高电流预测精度,降低开关损耗。仿真和实验结果表明,与传统模型预测相比,优化后的控制策略取得了良好的控制效果,验证了该方法的有效性和可行性。
In order to further improve model predictive control(MPC)for permanent magnet synchronous motor(PMSM),a control strategy is proposed,which combines the virtual voltage vector synthesis,the finite control set expansion and the optimization of the value function.It can improve the accuracy of current prediction and reduce switching losses.The simulation and experimental results show that the optimized control strategy achieves better control effect than the traditional model prediction,which verifies the effectiveness and feasibility of the method.
In order to further improve model predictive control(MPC)for permanent magnet synchronous motor(PMSM),a control strategy is proposed,which combines the virtual voltage vector synthesis,the finite control set expansion and the optimization of the value function.It can improve the accuracy of current prediction and reduce switching losses.The simulation and experimental results show that the optimized control strategy achieves better control effect than the traditional model prediction,which verifies the effectiveness and feasibility of the method.
引文
[1]蒋范明,陈伟.宇航应用永磁同步电机矢量控制驱动电路设计[J].电力电子技术,2017,51(6):61-63.
[2]Rodriguez J,Kennel R M,Espinoza J R,et al.High-performance Control Strategies for Electrical Drives:An Experimental Assessment[J].IEEE Trans.on Industrial Electronics,2012,59(2):812-820.
[3]宋建国,牟蓬涛,林强强.基于标幺化模型的PMSM矢量控制系统设计[J].电力电子技术,2016,50(6):58-60.
[4]Cungang Hu,Xinghuo Yu,Donald Grahame Holmes,et al.An Improved Virtual Space Vector Modulation Scheme for Three-level Active Neutral-point-clamped Inverter[J].IEEE Trans.on Power Electronics,2017,32(10):7419-7434.
[5]肖萌,史婷娜,王志强,等.基于多级滞环控制器的永磁同步电机直接转矩控制[J].中国电机工程学报,2017,37(14):4201-4211.
[6]温饱,胡存刚,芮涛,等.三相并网逆变器状态反馈模型预测控制策略[J].电力电子技术,2018,52(6):24-27.
[7]孙斌煌,罗响,姜淑忠,等.多电压矢量的永磁同步电机模型预测控制[J].微特电机,2018,46(6):74-77.
[8]高逍男,陈希有.一种改进的永磁同步电机模型预测控制[J].电力自动化设备,2017,37(4):197-202.
[9]张虎,张永昌,刘家利,等.基于单次电流采样的永磁同步电机无模型预测电流控制[J].电工技术学报,2017,32(2):180-187.
[2]Rodriguez J,Kennel R M,Espinoza J R,et al.High-performance Control Strategies for Electrical Drives:An Experimental Assessment[J].IEEE Trans.on Industrial Electronics,2012,59(2):812-820.
[3]宋建国,牟蓬涛,林强强.基于标幺化模型的PMSM矢量控制系统设计[J].电力电子技术,2016,50(6):58-60.
[4]Cungang Hu,Xinghuo Yu,Donald Grahame Holmes,et al.An Improved Virtual Space Vector Modulation Scheme for Three-level Active Neutral-point-clamped Inverter[J].IEEE Trans.on Power Electronics,2017,32(10):7419-7434.
[5]肖萌,史婷娜,王志强,等.基于多级滞环控制器的永磁同步电机直接转矩控制[J].中国电机工程学报,2017,37(14):4201-4211.
[6]温饱,胡存刚,芮涛,等.三相并网逆变器状态反馈模型预测控制策略[J].电力电子技术,2018,52(6):24-27.
[7]孙斌煌,罗响,姜淑忠,等.多电压矢量的永磁同步电机模型预测控制[J].微特电机,2018,46(6):74-77.
[8]高逍男,陈希有.一种改进的永磁同步电机模型预测控制[J].电力自动化设备,2017,37(4):197-202.
[9]张虎,张永昌,刘家利,等.基于单次电流采样的永磁同步电机无模型预测电流控制[J].电工技术学报,2017,32(2):180-187.