摘要
针对单轴微型燃气轮机发电系统的启动、发电和停机过程,对微燃机用高速永磁同步起动发电机的驱动控制策略进行了研究。在整个运行过程中,高速永磁同步起动发电机控制系统由转速外环和电流内环构成,采用基于转子磁场定向的矢量控制来控制电机的转速和电磁转矩。在电动运行时,起动发电机拖动微型燃气轮机完成启动和冷却停机;在发电运行时,通过控制起动发电机的电磁转矩调节微型燃气轮机的转速,使之在最佳功率—转速点运行。利用建立的系统试验平台,对提出的控制策略进行了试验验证,结果表明:高速永磁同步起动发电机在整个运行过程中转速控制平稳,响应快速,能够满足微型燃气轮机发电系统的需求,且保证了微型燃气轮机发电系统变工况调节的灵活性。
According to the start, generation and shutdown process of the single shaft microturbine generation （MTG） system,the drive and control strategy of the high speed permanent magnet synchronous starter generator （PMSSG） used in MTG system was researched. During the whole running process, the control system consists of the inner current loop and the out velocity loop, and the rotor magnetic field oriented vector control method is adopted to control the velocity and electromagnetic torque of the high speed PMSSG. As a motor, the high-speed PMSSG is controlled to drive the microturbine to achieve the start and shutdown process. As a generator, the electromagnetic torque of the high speed PMSSG is controlled to adjust the velocity of the microturbine, making the microturbine high efficient operation at the optimum power-revolving speed. Utilizing the established experiment platform, the proposed control strategy was verified. The experimental results show that the velocity of the PMSSG during the whole operation is stable and quick response. The requirements of the MTG system are satisfied by the proposed strategy and the flexibility of the variable condition regulation is ensured.
出处
《电气传动》
北大核心
2013年第4期17-21,共5页
Electric Drive
基金
2008年度国家重大产业技术开发专项(发改办高技[2009]606号)
关键词
微型燃气轮机发电系统
高速永磁同步起动发电机
双向PWM变流器
矢量控制
microturbine generation system
high-speed permanent magnet synchronous starter generator
bi-directional PWM converter
vector control
