基于二阶广义积分器的单相光伏并网逆变器柔性功率控制

Q1 Engineering 电网技术 Pub Date : 2014-04-05 DOI:10.13335/J.1000-3673.PST.2014.04.020

Yang Yong, Li Shihua, Z. Binbin, Tao Xuehui, Zhao Fangping, Wang Zhi-bing

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引用次数: 2

摘要

针对单相光伏并网逆变器的特点，提出了一种静止坐标系下单相光伏并网逆变器的柔性功率控制方法。采用二阶广义积分(SOGI)算法得到一个与电网电压相位相同，另一个电压相位滞后于电网电压90°的两个正交电压，并利用比例准谐振(PQR)控制器在两相静止坐标系中实现对给定电流的快速跟踪。实验结果表明，采用该控制方法可以实现有功和无功的解耦控制，控制系统具有良好的静态和动态性能。

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A Second Order Generalized Integrator Based Flexible Power Control for Single-Phase Photovoltaic Grid-Connected Inverter

According to the feature of single-phase photovoltaic(PV) grid-connected inverter, a flexible power control method for single-phase PV grid-connected inverter in stationary coordinate system is proposed. Two orthogonal voltages, one of which is of the same phase as grid voltage and the phase of another one lags behind the grid voltage by 90°, are obtained by second order generalized integral(SOGI) algorithm, and the fast tracking of given current can be implemented by proportional quasi-resonant(PQR) controller in the two-phase stationary coordinate system. Experimental results show that using the proposed control method the decoupling control of active and reactive power can be realized, and the control system possesses good static and dynamic performances.

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来源期刊

电网技术 Engineering-Mechanical Engineering

CiteScore

7.30

自引率

0.00%

发文量

13735

期刊介绍： "Power System Technology" (monthly) was founded in 1957. It is a comprehensive academic journal in the field of energy and power, supervised and sponsored by the State Grid Corporation of China. It is published by the Power System Technology Magazine Co., Ltd. of the China Electric Power Research Institute. It is publicly distributed at home and abroad and is included in 12 famous domestic and foreign literature databases such as the Engineering Index (EI) and the National Chinese Core Journals. The purpose of "Power System Technology" is to serve the national innovation-driven development strategy, promote scientific and technological progress in my country's energy and power fields, and promote the application of new technologies and new products. "Power System Technology" has adhered to the publishing characteristics of combining "theoretical innovation with applied practice" for many years, and the scope of manuscript selection covers the fields of power generation, transmission, distribution, and electricity consumption.