Design of a New Cooperative Harmonic Filtering Strategy for Distributed Generation Interface Converters in an Islanding Network
Design of a New Cooperative Harmonic Filtering Strategy for Distributed Generation Interface Converters in an Islanding Network
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DOI：
10.1109/tpel.2007.904200
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发表时间：
2007-09
影响因子：
6.7
通讯作者：
Tzung-Lin Lee;Po-tai Cheng
中科院分区：
文献类型：
--
作者：
Tzung-Lin Lee;Po-tai Cheng
在质量和可靠性方面对优质电力的需求不断增加，以及新能源技术的不断涌现，导致了分布式发电系统的发展。由于电力电子设备的迅速普及，分布式发电系统中的许多负荷本质上是非线性的，由此产生的谐波污染需要解决。提出了一种新的分布式电源接口变流器的协作式谐波滤波策略。设计并实现了一种基于各接口变流器无功伏安消耗的下垂控制方法。在该策略中，可以在不进行任何通信的情况下均匀地分担整体的谐波滤波工作量。对其工作原理进行了详细的说明。计算机仿真和实验室测试结果验证了该策略的分布式谐波抑制能力。
Increasing demand for premium electric power, in terms of both quality and reliability, and emerging new energy technologies have led to the development of distributed generation systems. Due to rapid penetration of power electronics equipment, many of the loads within distributed generation systems are nonlinear in nature, and the resulting harmonics pollution needs to be addressed. This paper proposes a new cooperative harmonic filtering strategy for the interface converters of distributed generation sources. A droop control method based on the reactive volt-ampere consumption of harmonics of each interface converter is designed and implemented. In this strategy, the overall harmonic filtering workload can be evenly shared without any communications. The operation principle is explained in detail. Computer simulations and laboratory test results validate the distributed harmonic damping capability of the proposed strategy.