Frequency domain-based configuration and power follow-up control for power sources in a grid-connected microgrid
Frequency domain-based configuration and power follow-up control for power sources in a grid-connected microgrid
复制标题
并网微电网电源频域配置及功率跟踪控制
DOI：
10.1002/etep.1980
复制
发表时间：
2015
影响因子：
2.3
通讯作者：
Xie Xiaogao
中科院分区：
文献类型：
--
作者：
Zheng Lingwei;Liu Shirong;Xie Xiaogao
通常，利用自然能源的分布式发电给电网带来负面影响。具有多种电源的微电网能够消除这些负面影响。本文提出了一种基于频域的并网微电网电源配置与控制设计方法。首先，根据功率源的频谱特征配置功率源。然后，将基于频域的功率跟踪控制应用于电源，并调节共偶点（PCC）的功率以跟踪所需的功率值。对基于频域的电源配置和功率跟踪控制方法进行了详细的理论分析。最后，基于所提出的组态方法和控制方法，设计了一个具有多电源的校园微电网。频域分析和实验结果表明，PCC的功率可以被调节到一个理想的值，即成功地抑制了微电网中负载和可再生资源对电网的干扰。版权所有©2014 John Wiley & Sons， Ltd。
Usually, distributed generations with natural energies bring negative effects to the utility grid. Microgrid with various power sources is able to eliminate these negative effects. A frequency domain‐based method is proposed in this paper for configuration and control design of power sources in a grid‐connected microgrid. First, the power sources are configured based on their frequency spectrum features. After that, the frequency domain‐based power follow‐up control is applied to the power sources, and the power at the point of common couple (PCC) is regulated to follow up a desired power value. Detailed theoretical analysis of the frequency domain‐based method for configuration and power follow‐up control of power sources are presented. Finally, a microgrid in a campus with multiple power sources is designed based on the proposed configuration method and control method. Frequency domain analysis and experimental results show that the power at PCC can be regulated to a desired value, i.e. the disturbances to the grid caused by loads and renewable resources in microgrid are successfully suppressed. Copyright © 2014 John Wiley & Sons, Ltd.