异步化同步发电机无转速传感器控制  

Control of an Asynchronized Synchronous Generator Without Position Sensors

作　　者：应黎明[1] 陈允平[1] 廖清芬[1] 崔雪[1] 

机构地区：[1]武汉大学电气工程学院,武汉430072

出　　处：《电工技术学报》2007年第11期52-57,共6页Transactions of China Electrotechnical Society

摘　　要：论述了异步化同步发电机有功功率和无功功率解耦控制原理,讨论了定子磁场的定位和转子位置的确定方法,以转子电流作为反馈量,构造了定子磁链观测器。借助于李亚普诺夫稳定理论,给出转子转速观测的递推模型。研制了DSP转子励磁控制装置,进行了异步化同步发电机无转速传感器的励磁控制试验研究。试验结果表明,转速观测器可以有效地确定转子转速,从而实现发电机的无转速传感器控制。The theory of decoupled control of active and reactive power for an asynchronized synchronous generator（ASG） is investigated in this paper. The methods to determine the stator flux and the rotor position are discussed, and the observer of stator flux is constructed, in which the rotor currents act as feedback variables. The rotor speed observation mode is derived based on Lypunov＇s stability theory. The tests of rotor exciting current control without position sensors are developed. The results prove that the rotor speed observation is effective and the control of active and reactive power can be implemented without position sensors.

关 键 词：异步化 同步发电机 磁链和转速观测 解耦控制 

分 类 号：TM341[电气工程—电机]