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首页> 外文会议>International Conference on Latest Trends in Electrical Engineering and Computing Technologies >Analysis of field oriented controlled AC drive fed by a back-to-back three level NPC converter
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Analysis of field oriented controlled AC drive fed by a back-to-back three level NPC converter

机译：通过背靠背三级NPC转换器供给现场定向控制的AC驱动器分析

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This paper presents an extensive simulation study of the field oriented control application to the instantaneous power control of Electric Grid and Induction Motor Drive both connected via back-to-back PWM Active Front End Converter. The machine rated at 1.6 MW for conveyor application is fed from a 3.3 kV line voltage synthesized using a 3-level Neutral Point Clamped (NPC) Inverter which is interfaced to the 3.3 kV mains via 3-level NPC rectifier acting as a sinusoidal front end so that bi-directional power flow can be achieved. The performance of designed controllers has been evaluated on the basis of transient response behavior, settling time and peak time against theoretical values. It was found that the controllers responded with high overshoots and slower settling times contrary to the theoretical calculated values of the controller performance parameters. This paper investigates and identifies the variations in simulated and theoretical results of controller performance parameters from the root locus sketch of open loop and closed loop responses of the respective controllers. The simulations have been carried out in PLECS software using real system parameters.
机译：本文介绍了对电网的瞬时功率控制的广泛仿真研究，电网和电动电动机驱动均通过背靠背的PWM主动前端转换器连接到电网和感应电动机驱动。用于输送机应用的1.6 MW的机器由使用3级中性点夹紧（NPC）逆变器合成的3.3kV线电压，通过3级NPC整流器作为正弦前端的3级NPC整流器接合到3.3 kV电源因此可以实现双向功率流。基于瞬态响应行为，稳定时间和升高时间来评估设计控制器的性能。有发现控制器响应高过冲，速度较慢与控制器性能参数的理论计算值相反。本文调查并识别来自各个控制器的开环的根轨迹素描和闭环响应的根轨迹草图中的模拟和理论结果的变化。使用真实系统参数在PLECS软件中进行了模拟。

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