摘要
本文作者介绍了一种可控配电变压器,重点研究了其电网电流控制。作者基于理想的可控配电变压器数学模型,采用了比例积分控制器设计了电网电流控制系统。利用PI控制器结合坐标变换能无静差跟踪交流信号的特点,实现了无功补偿和抑制谐波电流等功能。在MATLAB软件仿真中实现了电网电流的控制,结果证明其无功补偿和谐波抑制效果明显。
A controllable distribution transformer is introduced,and its power grid current control is mainly studied.Based on the ideal mathematical model of controllable distribution transformer,the proportional integral controller is used to design the power grid current control system.Using the PI controller and the coordinate transformation,which can track the AC signal without static error,reactive power compensation and harmonic current suppression are realized.The simulation is realized in MATLAB.The controllable distribution transformer under PI control has obvious effect of reactive power compensation and harmonic suppression.
作者
张涛
朱大伟
代晓辉
梁得亮
王宇珩
ZHANG Tao;ZHU Da-wei;DAI Xiao-hui;LIANG De-liang;WANG Yu-heng(Weinan Power Supply Branch of Shaanxi Local Power(Group)Co.,Ltd.,Weinan 714000,China;Shaanxi Local Power(Group)Co.,Ltd.,Xixan 710071,China;School of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
出处
《变压器》
2022年第4期15-19,共5页
Transformer
关键词
可控配电变压器
电流控制
电能质量
比例积分控制
Controllable distribution transformer
Current control
Power quality
Proportional integral control
