A solar PV system controlled by least sum of exponentials algorithm

2016 IEEE 7th Power India International Conference (PIICON) Pub Date : 2016-11-01 DOI:10.1109/POWERI.2016.8077413

Shuvam Gupta, Ikhlaq Hussain, Bhim Singh

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引用次数: 1

Abstract

This study proposes a new control for grid-connected solar PV (Photovoltaic) system which simultaneously injects active power and improves the quality of power of a three-phase distribution grid. The system comprises of a solar PV array, a VSC (Voltage Source Converter), a RC ripple filter and interfacing reactors connected to the three-phase distribution grid and linear/nonlinear balanced/unbalanced loads. The proposed control for the VSC in addition to harmonics mitigation, reactive compensation and balancing of three-phase loads concurrently extracts the maximum available power from the PV array by means of a MPPT (Maximum Power Point Tracking) algorithm. Besides the MPPT algorithm, the VSC is controlled by the least sum of exponentials algorithm. The THDs (Total Harmonic Distortions) of grid currents and the voltages at the PCC (Point of Common Coupling) are found to be within the limits given by IEEE 519 and IEEE 929 standards. The system performance is experimentally tested for a variety of loads and solar insolation levels on a prototype developed in the laboratory.

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用最小指数和算法控制太阳能光伏系统

本文提出了一种并网太阳能光伏系统的控制方法，该控制方法可以同时注入有功功率，提高三相配电网的供电质量。该系统由太阳能光伏阵列、VSC(电压源转换器)、RC纹波滤波器和连接到三相配电网和线性/非线性平衡/不平衡负载的接口电抗器组成。在谐波抑制、无功补偿和三相负荷平衡同时进行的VSC控制中，采用最大功率点跟踪(MPPT)算法提取光伏阵列的最大可用功率。VSC除采用MPPT算法外，还采用最小指数和算法进行控制。电网电流的总谐波失真(THDs)和PCC(共耦合点)的电压都在IEEE 519和IEEE 929标准规定的范围内。在实验室开发的原型上，对系统性能进行了各种负载和太阳日照水平的实验测试。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 IEEE 7th Power India International Conference (PIICON)

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