变负载下变速永磁同步发电机混沌控制研究  

Research on Chaos Control of Variable Speed Permanent Magnet SynchronousGenerator under Variable Load

作　　者：张维威 武交峰 简志雄 ZHANG Weiwei;WU Jiaofeng;JIAN Zhixiong(Guangdong Polytechnic of Environmental Protection Engineering,Foshan 528216,China)

机构地区：[1]广东环境保护工程职业学院,广东佛山528216

出　　处：《机械制造与自动化》2024年第6期229-233,共5页Machine Building & Automation

基　　金：广东省自然科学基金项目(2021A1413020632);广东省高等职业院校机电类专业教学指导委员会教改课题项目(GDJDJZW202105)。

摘　　要：永磁同步发电机在变负载的影响下容易出现控制阈值模糊行为,影响机电系统的稳定。设计一种变负载下变速永磁同步发电机混沌控制方法。通过简化定子电流、定子电压等参数,由机械能转化为电能这一动态过程,计算电机磁通量。利用磁通量建立同步发电机实时状态的控制基波。根据混沌算法的映射范围,输出变负载下不同混沌行为的励磁控制律,实现变速永磁同步发电机的混沌控制。实验结果表明:所提方法在纯电阻负载和脉冲式负载下未出现电流及电压上升速率增高等现象,且控制后的发电机转子角与初始角吻合,具有良好的控制能力。Under the influence of variable load,permanent magnet synchronous generator is prone to have fuzzy control threshold behavior,which affects the stability of the electromechanical system.A chaos control method for variable speed permanent magnet synchronous generator is designed under variable load.By simplifying the parameters such as stator current and stator voltage,the dynamic process of converting mechanical energy into electrical energy is used to calculate the magnetic flux of the motor.The magnetic flux is applied to establish the control fundamental wave of synchronous generator in real-time state.According to the mapping range of chaos algorithm,the excitation control law of different chaotic behaviors under variable load is output to realize chaos control of variable speed permanent magnet synchronous generator.The experimental results show that under pure resistance load and pulse load,the proposed method has no phenomenon of increasing current and voltage rise rate and the controlled engine rotor angle is consistent with the initial angle,which has good control ability.

关 键 词：变速永磁同步发电机 纯电阻负载 脉冲式负载 混沌控制 非线性励磁系统 

分 类 号：TM351[电气工程—电机]