Power conditioning system for grid-connected photovoltaic system

Power conditioning system for grid-connected photovoltaic system
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并网光伏系统功率调节系统

DOI:
10.1016/j.solener.2013.07.021
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发表时间:
2013-10
期刊:
影响因子:
6.7
通讯作者:
Chan, W. L.
Chan, W. L.
中科院分区:
工程技术2区
文献类型:
--
作者:
Tang, Xin;Tsang, K. M.;Chan, W. L.

文献摘要

参考文献

相似文献

本研究提出一种新的可扩充式光伏并网系统控制策略。所提出的系统执行光伏发电和有源电力滤波器的双重功能,或其中之一。为此,电网电流而不是转换器的输出电流被整形为与电网电压同相(或反相)的正弦电流。此外,其参考电流是在将电压环控制器输出乘以电网电压波形时产生的,因此不需要传统设计中用于谐波消除和无功功率补偿的无功分量分析。因此,该算法简单且易于实现,并且仅需要一个用于电流检测的传感器和两个电压传感器。实验结果验证了该方法的有效性。
This study develops a new control strategy for an expandable grid-connected photovoltaic (PV) system. The proposed system performs dual functions of a PV generation and an active power filter, or either one. To this end, the grid current, instead of output current of the converter, is shaped to be a sinusoidal current in phase (or opposite phase) with the grid voltage. Furthermore, its reference current is generated in multiplying the voltage loop controller output by the grid voltage waveform, and therefore non-active components analysis for harmonics elimination and reactive power compensation in the conventional design is not necessary. As a result, the algorithm is simple and easy to implement, and only one sensor for current detection plus two voltage sensors are required. Experimental results verified the effectiveness of the proposed method.
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发表时间: 2011-02
期刊: International Journal of Control, Automation and Systems
影响因子: --
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