Variable step ILSE based control algorithm for power quality improvement of SPV system

2016 11th International Conference on Industrial and Information Systems (ICIIS) Pub Date : 2016-12-01 DOI:10.1109/ICIINFS.2016.8263035

Priyank Shah, Ikhlaq Hussain, Bhim Singh

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引用次数: 2

Abstract

This paper proposes the use of a variable step based improved least sum of exponentials (VS-ILSE) control algorithm for single stage three phase grid connected photovoltaic (PV) system. The VS-ILSE algorithm provides a fundamental weight of active and reactive power components of load currents which are used to generate reference grid currents. This control algorithm provides the power quality improvement of distribution network likes load balancing, power factor correction. The perturb and observe (P&O) MPPT (Maximum Power Point Tracking) algorithm is used to obtain reference DC link voltage of VSC and also used to extract maximum power from the SPV array during varying environmental conditions. The proposed system is simulated in MATLAB®/Simulink based environment of simpower system toolbox. The proposed algorithm is verified on a developed hardware and obtained responses are found satisfactory. The total harmonics distortions (THDs) of the grid currents and CCP (Common Coupling Point) voltages are found well according to an IEEE-519 and IEEE-929 standards.

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基于变步长ILSE的SPV系统电能质量改善控制算法

针对单级三相并网光伏系统，提出了一种基于变步长的改进指数最小和控制算法。VS-ILSE算法提供了用于产生参考电网电流的负载电流有功和无功分量的基本权重。该控制算法提供了负载均衡、功率因数校正等改善配电网电能质量的方法。采用扰动与观测(P&O)最大功率点跟踪(MPPT)算法获取VSC的参考直流链路电压，并用于在不同环境条件下提取SPV阵列的最大功率。该系统在基于MATLAB®/Simulink的simpower系统工具箱环境中进行了仿真。在已开发的硬件上对该算法进行了验证，得到了满意的响应。根据IEEE-519和IEEE-929标准，得到了电网电流和CCP(共耦合点)电压的总谐波畸变(THDs)。

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2016 11th International Conference on Industrial and Information Systems (ICIIS)

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