公开(公告)号：KR101434789B1

公开(公告)日：2014-08-26

申请号：KR1020130047989

申请日：2013-04-30

Applicant: 서울대학교산학협력단

Inventor： 설승기 ,  박용순 ,  김병현

IPC: G05F1/67

Abstract: A photovoltaic apparatus and a maximum power control method for the same are disclosed. The photovoltaic apparatus includes a photovoltaic power generation unit which converts solar energy into electric energy; a power converting unit which is connected to the photovoltaic power generation unit to convert a first power outputted by the photovoltaic power generation unit into a second power required by load; and the load which is connected to the power converting unit to consume the second power. The maximum power control method for the photovoltaic apparatus comprises the steps of: measuring terminal voltage and output current values of the photovoltaic power generation unit at each predetermined sampling time while dropping a terminal voltage of the photovoltaic power generation unit up to a minimum voltage which can be provided from a terminal of the photovoltaic power generation unit; measuring a terminal voltage and output current values of the photovoltaic power generation unit at each predetermined sampling time while boosting the terminal voltage of the photovoltaic power generation unit, dropped up to the minimum voltage, up to a maximum voltage which can be provided from both terminals of the photovoltaic power generation unit; and setting, to a maximum power output voltage of the photovoltaic power generation unit, a terminal voltage in which the multiplication of the measured terminal voltage and output current values of the photovoltaic power generation unit is the maximum.

Abstract translation: 公开了一种光电装置及其最大功率控制方法。 光伏装置包括将太阳能转换为电能的光伏发电单元; 电力转换单元，连接到光伏发电单元，以将由光伏发电单元输出的第一功率转换为负载所需的第二功率; 以及连接到功率转换单元以消耗第二功率的负载。 光电装置的最大功率控制方法包括以下步骤：在每个预定采样时间测量光伏发电单元的端电压和输出电流值，同时将光伏发电单元的端电压降至最小电压， 从光伏发电单元的端子提供; 在每个预定采样时间测量光伏发电单元的端子电压和输出电流值，同时将光伏发电单元的端子电压升高到最小电压，直到可从两个端子提供的最大电压 的光伏发电单元; 并且将光伏发电单元的测量端子电压和输出电流值的乘积最大化的端子电压设定为光伏发电单元的最大功率输出电压。