基于自抗扰的绿色建筑电气安装与管理中整流环节控制策略设计

Design of Rectification Control Strategy in Electrical Installation and Management of Green Buildings Based on Self Disturbance Rejection

针对以风电为发电能源的绿色建筑电气在安装与管理中由于风电波动性而导致的建筑系统整流环节直流母线电压稳定性不足、波动性强等问题,设计了一种融合自抗扰控制策略和深度确定性策略的自适应自抗扰控制策略。根据绿色建筑电气中整流环节的拓扑结构建立整流环节的数学模型,同时设计观测器对系统中的干扰进行估计,设计误差反馈律对扰动进行补偿,提升系统的抗扰性,从而抑制直流母线电压的波动现象。引入深度确定性策略,对自抗扰控制中的反馈系数进行自适应整定,形成自适应自抗扰控制,使控制器在暂态和稳态下均具有最优参数,提升直流母线电压的稳定性。最后,在MATLAB/Simulink数字仿真实验平台中搭建绿色建筑电气系统整流环节的实验模型,并与其他控制策略进行同工况对比,验证了所提控制策略的正确性和优异性。

A self-adaptive self disturbance rejection control strategy combining self disturbance rejection control strategy and deep deterministic strategy is designed to address the issues of insufficient stability and strong fluctuation of DC bus voltage in the rectification process of green building electrical systems using wind power as the energy source during installation and management due to wind power fluctuations.Establish a mathematical model for the rectification process in green building electrical systems based on the topology of the rectification process,and design an observer to estimate the interference in the system.Design an error feedback law to compensate for the disturbance and improve the system’s immunity,thereby suppressing the fluctuation phenomenon of DC bus voltage.Introducing a deep deterministic strategy to adaptively tune the feedback coefficients in self disturbance rejection control,forming an adaptive self disturbance rejection control that has optimal parameters in both transient and steady-state conditions,thereby improving the stability of DC bus voltage.Finally,an experimental model of the rectification section of the green building electrical system was built on the MATLAB/Simulink digital simulation experimental platform,and compared with other control strategies under the same operating conditions to verify the correctness and superiority of the proposed control strategy.