Active-disturbance rejection control and its application to solar PV DC-DC converter

Solar PV power generation system is a new type of solar energy into electrical energy generating system. It is vulnerable to the impact of solar radiation, external temperature and seasonal changes. There are many uncertainties. ADRC technology will be applied to solar PV systems to control of DC-DC Converter. In the system model uncertainties and external disturbances as a unified system of unknown interference. ESO is used to dynamic observation of the disturbance. Then the nonlinear state error feedback the controllaw is used to compensate the system. So the controllaw nothing to do with the parameters of within the system and unknown disturbance only with the system´s given input and output. It will simplify the process of the control system. Simulation results show that the design of ADRC can achievement the desired control effect, and has good stability and robustness.