Control scheme for wind–solar photovoltaic and battery-based microgrid considering dynamic loads and distorted grid

IF 1.6 Q4 ENERGY & FUELS
Yashi Singh, Bhim Singh, Sukuma Mishra
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引用次数: 1

Abstract

A concern regarding the deterioration in power quality (PQ) has escalated with the high level of integration of renewable energy sources to the utility, primarily in the scenario of a weak distribution grid. This paper presents a modified complex variable filter (MCVF)-based control to enhance the power quality performance of wind–solar photovoltaic (PV) and battery-based microgrid under the weak grid and dynamic load conditions. An MCVF attenuates the harmonics and DC bias infected voltage and current and extracts the fundamental components from distorted current and voltage. The control scheme for the voltage source converter (VSC) is presented to meet the active power demand of load/grid and attenuates harmonics to control the power quality issues at the point of common coupling. To achieve the round, the clock operation of the microgrid, a battery is interfaced to support the local loads under off-grid mode. Therefore, the presented VSC controller supplies the continuous power to the local loads and maintains the total harmonic distortion value of grid current within the PQ Standard IEEE-519-2014. The simulated and test results are presented to validate the VSC controller in different operating conditions.

Abstract Image

考虑动负荷和畸变电网的风能-太阳能光伏和电池微电网控制方案
随着可再生能源与公用事业的高度整合,特别是在配电网薄弱的情况下,对电能质量(PQ)恶化的担忧已经升级。本文提出了一种基于改进的复杂变量滤波(MCVF)的控制方法,以提高弱电网和动态负荷条件下风电光伏和电池微电网的电能质量性能。MCVF可以衰减谐波和直流偏置感染的电压和电流,并从失真的电流和电压中提取基元分量。提出了电压源变换器(VSC)的控制方案,以满足负荷/电网的有功功率需求,并衰减谐波以控制共耦合点的电能质量问题。为了实现微电网的轮询、时钟运行,在离网模式下,通过电池接口支持局部负载。因此,所设计的VSC控制器为局部负载提供连续供电,并使电网电流的总谐波失真值保持在PQ标准IEEE-519-2014的范围内。仿真和试验结果验证了VSC控制器在不同工况下的有效性。
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来源期刊
IET Energy Systems Integration
IET Energy Systems Integration Engineering-Engineering (miscellaneous)
CiteScore
5.90
自引率
8.30%
发文量
29
审稿时长
11 weeks
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