Switching affine linear model-based voltage regulation control method of power distribution network

The invention discloses a switching affine linear model-based voltage regulation control method of a power distribution network. The voltage regulation control method comprises the steps of adding a controllable series voltage regulation circuit between a power grid side and a sensitive load and solving a state-space equation of the controllable series voltage regulation circuit; transforming a switching balance point of an inverter into an original point through coordinate transformation and obtaining the state-space equation after coordinate transformation; obtaining a switching law of making a grid-connected system stable and a basic switching control strategy according to the state-space equation after coordinate transformation and Lyapunov stability analysis; and introducing a lag link to limit the switching frequency on the basis of the basic switching control strategy and obtaining a switching control strategy with a hysteresis loop. According to the switching control method disclosed by the invention,