Harmonics Suppression and Control Design for General-Purpose Mission Profile Emulator of Three-Phase Power Electronics System
Harmonics Suppression and Control Design for General-Purpose Mission Profile Emulator of Three-Phase Power Electronics System
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DOI：
10.1109/ecce.2018.8557699
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发表时间：
2018-09
期刊：
影响因子：
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通讯作者：
Yubo Song;Ran Cheng;K. Ma
中科院分区：
文献类型：
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作者：
Yubo Song;Ran Cheng;K. Ma
电力电子系统可靠性的量化评估变得越来越重要。为了对电力电子设计的可靠性和功能性进行专门的测试和验证，提出了一种通用的任务剖面仿真器，该仿真器只消耗电路的功率损耗，可以模拟多种三相直流-交流电力电子应用的工作条件。然而，在该任务剖面仿真器中，存在与大多数三相变换器系统不同的零序电流路径，导致仿真效果失真，特别是在低阶谐波特性方面。从谐波抑制能力方面对任务轮廓仿真器的几种控制/电路方案进行了设计和比较，并对每种方案的计算时间进行了评估，因为必须为其他测试和控制功能保留足够的计算能力。在整个分析过程中，还进行了实验验证来验证结论。
The quantified reliability estimation of power electronics system is growing more and more crucial. To enable dedicated tests and validation for the power electronics designs in respect to the reliability and functionality, a general-purpose mission profile emulator, which only consumes the power losses of the circuits and can emulate the operating conditions of multiple three-phase DC-AC power electronics applications, is proposed. However, in this mission profile emulator, there exists zero-sequence current path which is different from most three-phase converter systems, resulting in distorted emulation effects especially in respect to the low-order harmonic characteristics. Design and comparison of several control/circuit solutions for the mission profile emulator is conducted on the aspect of harmonic suppression capability, and the computation time for each solution is also evaluated because enough computation capability of controller has to be reserved for other tests and control functions. Experimental validation is also conducted to verify the conclusions throughout the analysis.