面向多源动力系统的永磁同步发电机控制优化方法  

Control optimization for permanent magnet synchronous generators in multi-source power systems

作　　者：李凌昀 刘伟志 王永翔 刘洋 LI Lingyun;LIU Weizhi;WANG Yongxiang;LIU Yang(Postgraduate Department,China Academy of Railway Sciences,Beijing 100081,China;Beijing Zongheng Electro-Mechanical Technology Co.,Ltd.,Beijing 100094,China)

机构地区：[1]中国铁道科学研究院研究生部,北京100081 [2]北京纵横机电科技有限公司,北京100094

出　　处：《机车电传动》2024年第6期94-103,共10页Electric Drive for Locomotives

基　　金：中国铁道科学研究院集团有限公司青年课题(2023YJ004)。

摘　　要：在多源动力传动系统应用中,对于采用内燃动力驱动的永磁同步发电机控制有着更高的控制精度、更强的抗干扰能力和更大功率输出能力的要求,文章从控制策略和控制器角度出发对永磁同步发电机控制方法进行优化设计,提出了以最大转矩、最小损耗为原则构建拉格朗日函数求解直轴、交轴电流的方法,形成了一种结合矢量控制和效率优化控制的复合稳压控制策略。在此基础上,引入了模糊分数阶超螺旋滑模控制算法,以提高控制方法的灵活性与控制性能。运用MATLAB/Simulink分别搭建PI、分数阶超螺旋滑模、模糊分数阶超螺旋滑模3种电压控制器模型进行对比及其仿真验证。结果表明,文章提出的面向多源动力传动系统的永磁同步发电机控制优化方法能够较快抑制扰动、保证直流侧电压的稳定性,有效降低了复杂工况对发电机的不良影响,具有优良的控制效果。In the application of multi-source power transmission systems,the control of permanent magnet synchronous generators(PMSG)driven by diesel engines demands higher control precision,stronger anti-interference capability,and enhanced power output performance.This paper presents the design optimization for the control of PMSGs from both strategy and controller perspectives.A novel approach was proposed that incorporates a Lagrangian function based on the principles of maximum torque and minimum loss to solve for the direct-axis and quadrature-axis currents,leading to the creation of a voltage stability control strategy that integrates vector control with efficiency optimization control.On this basis,a fuzzy fractional-order super-twisting sliding mode control algorithm was introduced to improve the flexibility and performance of the established control strategy.Additionally,three voltage controller models—proportional-integral(PI),fractional-order super-twisting sliding mode,and fuzzy fractional-order super-twisting sliding mode—were constructed using MATLAB/Simulink for comparative analysis and verification through simulations.The results demonstrate that the proposed optimization method for the control of PMSGs tailored to multi-source power transmission systems achieves superior control performance by increasing the rate of disturbance inhibition,ensuring the stability of the DC-side voltage,and mitigating adverse impacts of complex conditions on the generators.

关 键 词：永磁同步发电机 多源动力系统 效率优化控制 超螺旋滑模 模糊控制 

分 类 号：U262.41[机械工程—车辆工程]