Abstract:
A solar power plant including a power conversion system and a method of controlling the power conversion system. Implemented in a DC/AC inverter, the plant includes photovoltaic modules (PV modules) arranged in arrays connected to a respective DC/DC converters. A power collecting grid interfaces between the DC/DC converters and the DC/AC inverter. The method includes monitoring the performance of each PV array by adjusting the voltage level of each interface between a PV array and the corresponding DC/DC converter, and includes monitoring the output power of each DC/DC converter as a feedback for the regulating.
Abstract:
It is presented a DC/DC converter for converting power between a first DC connection comprising a first positive terminal and a first negative terminal, and a second DC connection comprising a second positive terminal and a second negative terminal. The DC/DC converter comprises: a first multilevel converter and a second multilevel converter connected serially between the first positive terminal and the first negative terminal, wherein the second positive terminal is connected to a point between the first multilevel converter and the second multilevel converter; and a first filter connected between an AC terminal of the first multilevel converter and an AC terminal of the second multilevel converter, wherein the first filter comprises a capacitor and an inductor.
Abstract translation:本发明提供一种DC / DC转换器,用于在包括第一正极端子和第一负极端子的第一DC连接器和包括第二正极端子和第二负极端子的第二DC连接器之间转换功率。 DC / DC转换器包括:串联连接在第一正极端子和第一负极端子之间的第一多电平转换器和第二多电平转换器,其中第二正极端子连接到第一多电平转换器和第二多电平转换器之间的点; 以及连接在第一多电平转换器的AC端子和第二多电平转换器的AC端子之间的第一滤波器,其中第一滤波器包括电容器和电感器。