High-Performance Grid Simulator Using Parallel Structure Fractional Repetitive Control
High-Performance Grid Simulator Using Parallel Structure Fractional Repetitive Control
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DOI：
10.1109/tpel.2015.2441732
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发表时间：
2016-03
影响因子：
6.7
通讯作者：
Tianqi Liu;Danwei W. Wang;Keliang Zhou
中科院分区：
文献类型：
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作者：
Tianqi Liu;Danwei W. Wang;Keliang Zhou
本文采用一种基于并行结构分数重复控制方案的高性能电网仿真器来模拟电网的各种运行场景，以测试电力产品。本文提出了一种简单的分数重复控制方案，用于电网模拟器，以实现高精度的跟踪性能。通过并联支路，重复控制器可以灵活地选择感兴趣的谐波进行补偿，并独立地调整在选定的谐波频率的收敛速度。与传统的重复控制相比，所提出的控制方案实现了更快的瞬态响应。此外，在建议的重复控制器中所需的延迟单元的数量减少到至少一半的传统的重复控制器。详细介绍了设计过程和稳定性准则。一组实验结果验证了所提出的方法的有效性。
In this paper, a high-performance grid simulator based on a parallel structure fractional repetitive control scheme is employed to emulate various operation scenarios of power grids for testing power products. In this paper, a simple fractional repetitive control scheme is proposed for grid simulators to achieve high-accuracy tracking performance. Using parallel branches, the proposed repetitive controller can flexibly select the interested harmonics for compensation, and independently, tune the convergency rate at selective harmonic frequencies. Compared with the conventional repetitive control, the proposed control scheme achieves faster transient response. Moreover, the number of delay units required in the proposed repetitive controller is reduced to at least half of that in a conventional repetitive controller. Design process and stability criteria are presented in details. A set of experimental results is provided to verify the effectiveness of the proposed approach.