一种基于矩阵构建的模块化多电平变换器电容电压测量方案

This letter proposes a matrix construction and calculation-based submodule capacitor voltage (SM-CV) measurement method for the MMC with reduced voltage sensors. The SMs in the same arm are divided into groups, and a voltage sensor is allocated to measure the group output voltage. After multiple sampling, a group output voltage vector is obtained and can be expressed by the product of the correspo...