| 计及开关频率优化的永磁同步电机模型预测转矩控制 |
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| 引用本文： | 田朱杰,吴晓新,於锋,刘兴.计及开关频率优化的永磁同步电机模型预测转矩控制[J].航空动力学报,2018,45(11):21-27. |
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| 作者姓名： | 田朱杰 吴晓新 於锋 刘兴 |
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| 作者单位： | 南通大学 电气工程学院,江苏 南通226019,南通大学 电气工程学院,江苏 南通226019,南通大学 电气工程学院,江苏 南通226019,南通大学 电气工程学院,江苏 南通226019 |
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| 基金项目： | 国家自然科学基金项目(51807098);南通市科技应用研究计划项目(GY12016008) |
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| 摘 要： | 为减小逆变器开关频率对永磁同步电机(PMSM)性能的影响,提出了一种计及开关频率优化的PMSM模型预测转矩控制(MPTC)方法。建立了电磁转矩及定子磁链数学模型,并在此基础上设计了MPTC全速域价值函数。在全速域价值函数中加入了逆变器开关频率的限制条件,以实现恒转矩区内最大转矩电流比、恒功率区内弱磁调速并计及开关频率最优化的控制效果。仿真结果证明了所提方案不仅具有较高的动态响应性能,而且有效降低了逆变器的开关频率。
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| 关 键 词： | 永磁同步电机 模型预测转矩控制 开关频率 最大转矩电流比 弱磁控制 |
| 收稿时间： | 2018/5/3 0:00:00 |
Model Predictive Torque Control for Permanent Magnet SynchronousMotor with Switching Frequency Optimization |
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| TIAN Zhujie,WU Xiaoxin,YU Feng and LIU Xing.Model Predictive Torque Control for Permanent Magnet SynchronousMotor with Switching Frequency Optimization[J].Journal of Aerospace Power,2018,45(11):21-27. |
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| Authors: | TIAN Zhujie WU Xiaoxin YU Feng and LIU Xing |
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| Institution: | School of Electrical Engineering, Nantong University, Nantong 226019, China,School of Electrical Engineering, Nantong University, Nantong 226019, China,School of Electrical Engineering, Nantong University, Nantong 226019, China and School of Electrical Engineering, Nantong University, Nantong 226019, China |
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| Abstract: | In order to reduce the influence of inverter switching frequency on the output performance of permanent magnet synchronous motor (PMSM), a model predictive torque control (MPTC) method considering the switching frequency optimization for PMSM was proposed. According to the mathematical model of the electromagnetic torque and stator flux, a cost function based on the MPTC was designed. In order to implement the low switching frequency in the full speed range, a switching frequency restriction was also constructed. The control algorithm was developed in both the constanttorque operation and constantpower operation conditions, when the maximum torque per ampere and flux weakening control methods were employed, respectively. Simulation results were presented, verifying the effectiveness of the proposed control strategy. |
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| Keywords: | permanent magnet synchronous motor (PMSM) model predictive torque control switching frequency maximum torque per ampere flux weakening control |
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