摘要
利用变压器的第三绕组作为接入端口,将静止同步补偿器与变压器进行一体化融合,构成一种新的补偿技术(即DT-STATCOM技术)。首先对一体化主电路结构进行了介绍,并以等效电路为基础,结合相量图对系统无功补偿机理以及核心控制参数进行了推导与分析;同时对基于电流内环和电压外环的双闭环解耦控制算法进行了说明;最后对底层脉宽调制技术中采用的开关时间超实时计算方法进行了详细阐述,并对其具体实现方法以及参数的选取范围进行了定量分析。建模仿真与实验分析验证了理论分析的正确性和可行性。
The DT-STATCOM compensation technology takes the third winding of power transformer as an input port to integrate the distribution transformer and static synchronous compensator together.Its main circuit structure is introduced,and its reactive power compensation principle and core control parameters are deduced and studied based on the equivalent circuit and vector diagram.Its decoupling control algorithm of inner current loop and external voltage loop is introduced.The super-real-time calculation of switching time in bottom level PWM generation is elaborated,its implementation is introduced and its parameter selection range is analyzed quantitatively.The simulative results are given to verify the correctness and feasibility of theoretical analysis.
出处
《电力自动化设备》
EI
CSCD
北大核心
2012年第3期32-37,共6页
Electric Power Automation Equipment
基金
国家863高技术基金资助项目(2009AA05Z208)
中国博士后科学基金资助项目(20100470055)~~
关键词
变压器
静止同步补偿器
一体化
解耦控制
超实时计算
electric transformers
STATCOM
integration
decoupling control
super-real-time calculation
