永磁同步电机飞轮储能系统充放电控制策略

发布时间：2018-02-02 09:07

本文关键词： 永磁同步电机飞轮储能矢量控制模型参考自适应　出处：《西安交通大学学报》2014年10期 　论文类型：期刊论文

【摘要】：针对飞轮储能系统(FESS)转动惯量大、采用传统矢量控制算法启动时在零速附近容易出现转速震荡的问题,提出了一种新的电机控制方法。该方法用理论计算转速替代模型参考自适应(MRAS)算法的观测转速,并用给定电流替代反馈电流对耦合项进行计算,减小电机转速振荡。在FESS放电时,需要根据负载所需功率调整电机输出功率,针对此问题,采用一种以维持直流母线电压恒定为目标的电机控制方法,同时在FESS投入工作前,用电机当前转速作为传统MRAS算法PI控制器积分项的初始值,加快了MRAS无速度算法的收敛速度。仿真和实验结果表明,与传统控制方法相比,所提出的控制算法能减小电机启动时在零速附近的转速振荡,维持FESS放电时负载的正常工作,保证FESS快速可靠地进行状态切换。
[Abstract]:In view of the large moment of inertia of flywheel energy storage system (FESS), the traditional vector control algorithm is used to start the system, which is prone to speed oscillation near zero speed. In this paper, a new motor control method is proposed, in which the rotational speed is calculated theoretically instead of the observed rotational speed of the model reference adaptive control (MRASA) algorithm, and the coupling term is calculated by replacing the feedback current with the given current. When FESS discharge, the output power of motor needs to be adjusted according to the power required by the load. To solve this problem, a motor control method aiming at maintaining the constant DC bus voltage is adopted. At the same time, the current speed of the motor is used as the initial value of the Pi controller integral term of the traditional MRAS algorithm before the FESS is put into operation. The simulation and experimental results show that compared with the traditional control method, the proposed control algorithm can reduce the speed oscillation near zero speed when the motor starts. Maintain the normal operation of the load during FESS discharge, and ensure the FESS to switch the state quickly and reliably.
【作者单位】：西安交通大学电气工程学院;
【基金】：国家“863计划”资助项目(2012AA050206)
【分类号】：TM341
【正文快照】： http:∥www.jdxb.cn http:∥zkxb.xjtu.edu.cn自20世纪90年代以来,随着新材料和电力电子技术的进步,飞轮储能技术取得了长足发展。与其他储能方式相比,飞轮储能具有能量密度高、无过充放电问题、放电深度易测量、能量转换率高、使用寿命长等优点,在电力系统、电动汽车、航空航

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