基于模型预测控制的TCLC-HAPF控制策略  

TCLC-HAPF control strategy based on model predictive control

作　　者：沈哲仁 彭耀庆 Shen Zheren;Peng Yaoqing(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212001,China;Jiangsu Guoxin Shahe Pumped Storage Co.,Ltd.,Changzhou 213300,China)

机构地区：[1]江苏大学电气信息工程学院,镇江212001 [2]江苏国信沙河抽水蓄能有限公司,常州213300

出　　处：《电子测量技术》2023年第15期18-25,共8页Electronic Measurement Technology

摘　　要：目前带晶闸管控制LC型电抗器的混合有源滤波器(TCLC-HAPF)一般采用等效阻抗法控制TCLC部分,采用滞环比较法控制有源滤波器部分。该类控制器忽视了有源与无源部分的联系,因而不能保证全范围内稳定的谐波抑制能力。对此,以单相TCLC-HAPF为研究对象,分析得出TCLC-HAPF双模式预测控制模型,在预测控制模型的基础上进行有源部分和无源部分的联合控制;然后将指令电流的历史波形输入预测控制器,通过稳定状态预测和滚动优化得出可能的优化方向,从而改善了带稳定负载时的长期运行性能。为使离散输出的优化结果作用于TCLC-HAPF装置,提出了终段脉冲式PI控制器。变工况仿真实验表明:模型预测控制方案具有可行性;相较于传统方案,改善了系统运行状态,稳定时的控制性能变好。At present,the hybrid active power filter(TCLC-HAPF)with thyristor controlled LC reactor generally uses the equivalent impedance method to control the TCLC part and the hysteresis comparison method to control the active power filter part.This kind of controller ignores the connection between active and passive parts,so it can not guarantee the stable harmonic suppression capability in the whole range.In this regard,taking single-phase TCLCHAPF as the research object,the TCLC-HAPF dual-mode predictive control model is analyzed and obtained.On the basis of the predictive control model,the active part and passive part are jointly controlled.Then the historical waveform of the instruction current is input to the predictive controller,and the possible direction of performance optimization is obtained through multi period prediction and rolling optimization,thus improving the long-term operation performance with stable load.In order to make the optimization result of discrete output act on TCLC-HAPF device,a terminal pulse PI controller is proposed.The simulation experiment under variable working conditions shows that the model predictive control scheme is feasible.Compared with the traditional scheme,the controllable range becomes wider and the control performance becomes better when it is stable.

关 键 词：混合有源滤波器 预测控制 历史波形 性能优化 PI控制器 

分 类 号：TM464[电气工程—电器]