多机并联运行的光伏水泵群控策略研究

Research on Photovoltaic Pump Group Control System Strategy with Multiple Pumps Operating in Parallel

摘要: 针对光伏水泵单机系统无法充分利用太阳能的缺陷，提出了一种多机并联运行的光伏水泵群控策略。本文详细阐述了光伏水泵群控系统的组织结构、工作原理及实现方式，具体分析了水泵并联运行特性并建立并联水泵数学模型，通过群控器内部优化算法实时控制水泵运行台数，最终实现系统扬水量最大化，实验结果验证了群控策略的有效性。

Abstract: As the stand-alone photovoltaic pump system cannot make full use of the solar energy, a new strategy which multiple pumps operate in parallel was proposed. This paper gives a detailed ela-boration on the organization structure, working theory and implementation method of the pho-tovoltaic pump group control system, analyzes the operation characteristics of multiple pumps in parallel, establishes the mathematical model, controls the number of pumps in operation instantly by using internal optimization algorithm of group controller, and ultimately reaches the aim of maximizing the system flow. The experimental results verify the effectiveness of the group control strategy.