模块化多电平变换器在稳态运行下具有恒定平衡点的基于能量的状态空间表示

The internal currents and voltages of modular multilevel converters (MMCs) contain multiple frequency components in steady-state operation and remain time-periodic even when transformed into a synchronously rotating reference frame. This prevents a straightforward state-space representation, where a constant equilibrium point is reached and all state variables converge to constant values under ste...