基于梯度估计的新型光伏电站系统自动规划方法

New Automatic Planning Method of Photovoltaic Power Station System Based on Gradient Estimation

针对新型光伏电站系统电压波动幅值较大,且系统光电转换率较低,导致规划效果不佳,提出基于梯度估计的新型光伏电站系统自动规划方法。根据太阳能发电原理,建立光伏电站系统数学模型,描述光伏电站系统运行状态,对光伏电站系统暂态过程评估,确定系统运行状态,建立梯度函数,对暂态情况下光伏电站系统最优功率补偿,使系统由暂态转变为稳态,从而实现新型光伏电站系统自动规划。实验结果表明,设计方法应用下电压波动幅值较低,且光电转换率较高,具有良好的新型光伏电站系统自动规划效果。

Due to the large voltage fluctuation amplitude of the new photovoltaic power station system and the low photovoltaic conversion rate of the system,the planning effect is not good,so the new automatic planning method of photovoltaic power station system based on gradient estimation is proposed.According to the principle of solar power generation,establish a mathematical model of photovoltaic power station system,describe the photovoltaic power station system,the photovoltaic power station system transient process assessment,determine the system running status,establish gradient function,the optimal power compensation for transient photovoltaic power station system,the system from transient to steady state,so as to realize the new type of photovoltaic power station system automatic planning.The experimental results show that the voltage fluctuation amplitude of the system is relatively low,and the photoelectric conversion rate is relatively high,which has a good automatic planning effect of the new photovoltaic power station system.