双PWM变流器飞轮系统母线电压LADRC二次控制策略  

LADRC-BASED SECONDARY CONTROL STRATEGY OF DC-LINK VOLTAGE FOR DUAL PWM CONVERTER FLYWHEEL ENERGY STORAGE SYSTEM

作　　者：魏乐[1] 周子宇 房方[1] 王冰玉 Wei Le;Zhou Ziyu;Fang Fang;Wang Bingyu(School of Control and Computer Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学控制与计算机工程学院,北京102206

出　　处：《太阳能学报》2025年第1期242-250,共9页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(52176005)。

摘　　要：提出一种基于二阶线性自抗扰控制(LADRC)的飞轮储能系统直流母线电压二次控制策略来应对飞轮储能系统频繁充放电切换带来的母线电压波动问题,其将母线电压及微分值分别视为状态变量,负载功率、参数不确定性等内外干扰视为扩展状态量进行扰动观测器设计。该策略能将工况切换造成电压波动的观测扰动量实时补偿至控制量中,实现扰动补偿。加入二次控制解决LADRC面对非常值扰动会存在稳态误差的问题,保证飞轮储能系统在充放能切换过程中母线电压具备较好的快速响应和抗干扰性能的同时实现无差控制。最后通过仿真验证了所提策略的有效性。ALADRC-based secondary control strategy for the DC-link voltage of the FESS is proposed to deal with the voltage fluctuation problem caused by the charge/discharge switching of the FESS.The DC-link voltage and its differential value are considered as the state variables in this strategy.The internal and external disturbances,such as load power,switching loss,and parameter uncertainty,are regarded as an expanded state.This strategy can compensate the disturbance observation quantity caused by the switching of operation stages to the control quantity in real time.And add the secondary control to eliminate the steady state error of DC-link voltage when FESS faces the non-constant disturbance.Ensure that the FESS has good fast-tracking and anti-interference performance during the switching process while realizing error-free control.The effectiveness of the proposed control strategy is verified by simulation results at last.

关 键 词：飞轮 储能 整流电路 电压控制 线性自抗扰控制 二次控制 

分 类 号：TK02[动力工程及工程热物理]