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机构地区:[1]黑龙江大学机电工程学院
出 处:《电气应用》2007年第12期120-125,共6页Electrotechnical Application
基 金:黑龙江大学校青年基金项目(QL200609)
摘 要:介绍了一种拓扑结构与众不同的矩阵变换器——间接式矩阵变换器,并将其应用于感应电机矢量控制系统。在详细介绍间接式矩阵变换器的工作原理、控制策略及换流方法的基础上,将间接式矩阵变换器与感应电机矢量控制理论相结合,提出一种新颖的感应电机矢量控制系统。该系统在实现对电机矢量控制的同时,能够实现能量的双向传递,减少电网的谐波污染,同时又可以使电网侧的双向开关在零电流时动作,无需采用四步换流策略,由此降低了控制过程的复杂性。最后,利用Matlab软件对所提系统进行仿真,仿真结果验证了该系统的可行性。A different matrix topology-indirect matrix converter is introduced, h is used in vector controlling research of induction motor and displaced for conventional inverter to realize electrical energy conversion. The operation principle, control strategy and commutation method of indirect matrix converter is discussed in detail. Meanwhile indirect matrix converter is combined with the theory of vector control for induction motor. So a novel vector control system is proposed. The system can realize vector control for induction motor. Because switches are bidirectional in the rectifier, it can realize bidirectional convey of the energy and decrease pollution of harmonic wave. Meanwhile bidirectional switches can act in zero current. Four step commutations don't be needed so that it decreases complexity of control process. The switch loss is smaller. Finally, the proposed system is simulated through Matlab software and the simulation waveform verified the feasibility of the system.
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