多电力电子变压器协调控制及不间断供电研究  

Research of coordinate control strategy of power electronic transformer based AC/DC hybrid distribution system

作　　者：李鲁阳[1,2] 范士雄 邓卫 刘幸蔚[3] 裴玮 孔力 LI Lu-yang;FAN Shi-xiong;DENG Wei;LIU Xing-wei;PEI Wei;KONG Li(Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;China Electric Power Research Institute,Beijing 100192,China)

机构地区：[1]中国科学院电工研究所,北京100190 [2]中国科学院大学,北京100049 [3]中国电力科学研究院有限公司,北京100192

出　　处：《电工电能新技术》2019年第2期27-34,共8页Advanced Technology of Electrical Engineering and Energy

基　　金：国家重点研发计划项目(2017YFB0903300);国家电网公司总部科技项目(直流配电系统有功电压协调控制模式及方法研究;DZ71-17-030)

摘　　要：协调控制是保证交直流混合配电系统稳定运行的核心技术。针对多电力电子变压器互联的10kV中压交直流混合配电系统设计了集中式协调控制方案。首先提出了电力电子变压器站控层控制器的统一架构,然后提出了稳态和故障两种工况下系统的协调控制方案。最后基于RT-Lab设计了半实物仿真实验平台并将其用于实验验证。实验结果证明了所提出的协调控制方案的有效性。Coordinated control is the core technology to ensure the stable operation of AC/DC hybrid distribution systems.In this paper,a centralized coordinated control scheme based on interconnected communication is designed for power electronic transformer based 10kV AC/DC hybrid distribution system.Firstly,the unified architecture of the controller of the PET station control layer is proposed.Secondly,the coordinate control strategies under steady state and fault state are proposed.Finally,a hardware-in-the-loop simulation platform is designed based on RT-LAB and is used for experimental verification.The experimental results prove the effectiveness of the proposed coordinated control scheme.

关 键 词：多电力电子变压器互联 交直流混合配电网 协调控制 不间断供电 半实物仿真 

分 类 号：TM743[电气工程—电力系统及自动化]