Nonlinear feedback control strategy for photovoltaic simulator [基于非线性反馈的光伏模拟器控制策略]

作者：Zhang J.; Ning J.; Shu J.^*; Wang H.; Ding J.

来源：Acta Energiae Solaris Sinica, 2019, 40(7): 1920-1927.

• Disturbance rejection
• Linearization
• Nonlinear control systems
• Photovoltaic effects
• PWM rectifier

Aiming at the I-V output characteristic curve of photovoltaic mathematical mode, this paper analyzes the dynamic adjustment process theoretically, and proposes a comprehensive nonlinear feedback control strategy for PV simulator appling to three-phase voltage source PWM rectifier. The current loop is designed by input/output linearization control method, realizing precise decoupling the active and reactive current and eliminate the negative effect; The active disturbance rejection control based on error feedback control is apply to DC voltage loop, it improve the system response speed and ability to resist disturbance, meanwhile enhance stablility in the widely voltage range. Through constructing the 30 kW photovoltaic simulator prototype experiments, simulation and experimental results validate the correctness and feasibility of the proposed method.

• 单位
  中国科学院大学