阅读说明：本技术 一种光伏发电的控制方法、控制设备及光伏发电系统 (Photovoltaic power generation control method and control equipment and photovoltaic power generation system ) 是由 顾桂磊 于 2018-05-28 设计创作，主要内容包括：本发明实施例提供一种光伏发电的控制方法、控制设备及光伏发电系统,涉及光电技术领域,当发生遮挡或是组件故障时,可以使得光伏发电系统中的优化器快速调整输出电压参考值,进而不会对系统的发电量造成影响。该方法应用于光伏发电系统,该系统包括至少一个光伏组串以及控制设备,光伏组串包括至少一个光伏模块,每一个光伏模块包括光伏单元和与光伏单元连接的优化器,每个光伏单元包括至少一个光伏组件,该方法包括：控制设备周期性向每一个光伏组串的优化器发送输出电压参考值更新指令；每一个光伏组串的优化器接收输出电压参考值更新指令,根据输出电压参考值更新指令更新输出电压参考值。(The embodiment of the invention provides a control method and control equipment for photovoltaic power generation and a photovoltaic power generation system, relates to the technical field of photoelectricity, and aims to enable an optimizer in the photovoltaic power generation system to quickly adjust an output voltage reference value when shielding or component failure occurs so as not to influence the power generation capacity of the system. The method is applied to a photovoltaic power generation system, the system comprises at least one photovoltaic string and a control device, the photovoltaic string comprises at least one photovoltaic module, each photovoltaic module comprises a photovoltaic unit and an optimizer connected with the photovoltaic unit, each photovoltaic unit comprises at least one photovoltaic assembly, and the method comprises the following steps: the control equipment periodically sends an output voltage reference value updating instruction to the optimizer of each photovoltaic group string; and the optimizer of each photovoltaic group string receives the output voltage reference value updating instruction and updates the output voltage reference value according to the output voltage reference value updating instruction.)