交轴电流计算与电容储能反馈的双三相永磁同步发电机系统稳压控制  

Voltage Stabilization Control for Dual Three-Phase Permanent Magnet Synchronous Generator System Based on Quadrature Axis Current Calculation and Feedback of the Energy Stored in Capacitor

作　　者：郝亮 赵文祥[1] 吉敬华[1] 许德志 王玉雪 Hao Liang;Zhao Wenxiang;Ji Jinghua;Xu Dezhi;Wang Yuxue(School of Electrical and Information Engineering Jiangsu University,Zhenjiang 212013 China)

机构地区：[1]江苏大学电气信息工程学院,镇江212013

出　　处：《电工技术学报》2023年第2期353-364,共12页Transactions of China Electrotechnical Society

基　　金：国家杰出青年科学基金资助项目(52025073)。

摘　　要：双三相永磁同步发电机(DTP-PMSG)具有容错率高、低压大功率等特点,适用于受输出电压、空间体积限制的高端装备领域。常规的母线电压控制方法在负载快速变化时,存在电压恢复时间长、电压波动大的缺点。该文提出基于交轴电流计算与电容储能反馈相结合的稳压控制策略。建立脉冲宽度调制(PWM)整流器能量和功率交换数学模型,推导交轴电流内环给定的计算表达式,设计电压外环并分析物理意义。该方法既能缩短电压恢复时间,又可以降低电压波动幅值。仿真和实验结果验证了所提控制策略的可行性和有效性。In full electrification of high-end equipment,such as special vehicles,warships and aircraft,direct current power systems with generators as the core works under the condition of rapid load change.The dual three-phase permanent magnet synchronous generator(DTP-PMSG)has a high fault tolerance rate,low voltage,and high power,suitable for the high-end equipment field limited by output voltage and space volume.However,without considering the nonlinear relationship between bus voltage and quadrature axis current,the conventional bus voltage control method had the disadvantages of long voltage recovery time and large voltage fluctuation when the load changes rapidly.Recently,some methods were presented to analyze the physical meaning of the voltage outer loop and establish the connection between bus voltage and output power,but most of them suffered from high design costs due to complex control parameter.To address these issues,this paper proposes a voltage stabilization control strategy based on quadrature axis current calculation and feedback of the energy stored in capacitor.Firstly,the DTP-PMSG mathematical model is established to deduce the relationship between electromagnetic power and quadrature axis current.Secondly,according to PWM rectifier topology,the mathematical model of the energy and power exchange of the bus capacitor is established to derive the calculation formula of quadrature axis current.Thirdly,combined with the digital realization of the actual control system,the designed time parameter optimizes quadrature axis current calculation formula.Finally,considering that the calculated value of the quadrature axis current will have errors due to the inaccuracy of the DTP-PMSG mathematical model,a capacitor energy storage PI controller is designed to compensate the errors caused by the modeling and realizes the accurate control of the bus voltage.Simulation results show that,when the load is 100Ω,the calculated quadrature axis current value accounts for the main component of the given quadrature axis c

关 键 词：交轴电流计算 电容储能反馈 电压波动 恢复时间 永磁同步发电机 

分 类 号：TM351[电气工程—电机]