基于FPGA的双馈风力发电机定转子解耦数字镜像超实时仿真  

Faster-than-real-time Simulation of Stator-rotor Decoupling Digital Twin of Doubly-fed Induction Generator Based on FPGA

作　　者：陈厚合[1] 杨政 叶华[2] 裴玮[2] KAI Strunz CHEN Houhe;YANG Zheng;YE Hua;PEI Wei;KAI Strunz(School of Electrical Engineering,Northeast Electric Power University,Jilin 132012,China;Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;Technische Universität Berlin,Berlin 10587,Germany)

机构地区：[1]东北电力大学电气工程学院,吉林132012 [2]中国科学院电工研究所,北京100190 [3]柏林工业大学,柏林10587

出　　处：《高电压技术》2023年第5期1819-1830,共12页High Voltage Engineering

基　　金：国家自然科学基金(52177123,52077028)。

摘　　要：为实现双馈风力发电机(doubly fed wind generator,DFIG)大规模实时仿真,设计了一种基于现场可编程逻辑阵列(field programmable gate array,FPGA)的DFIG数字镜像IP核。并提出面向异步机定子与转子“T型”等效电路解耦的虚拟电容等效法,在此基础上提出DFIG内部各组件并行算法,最后构建DFIG-IP。通过流水线优化设计,完成基于FPGA的DFIG-IP在4种工况下计算精度与计算速度的实验验证。研究结果表明:该文所提方法降低DFIG异步机求解模块所需FPGA资源约77%;基于FPGA设计的DFIG-IP在500 MHz时钟频率下,超实时加速度比可达27.8,单个DFIG-IP占用ZCU106资源不超过20%;所提方法能够满足DFIG并网系统实时仿真在精度与速度上的要求。研究结果可为含大量新能源并网系统的电磁暂态仿真加速研究提供参考。To achieve the large-scale real-time simulation of doubly fed wind generator(DFIG),we designed a DFIG digital image intelligent property(IP)core based on field programmable gate array(FPGA),and proposed a virtual capacitance equivalent method for decoupling the“T-shaped”equivalent circuit of the stator and rotor of the asynchronous machine.Based on this,a parallel algorithm for each component in DFIG was proposed.Finally,DFIG-IP was constructed.Through pipeline optimization design,we performed the experimental verification of the calculation accuracy and speed of DFIG-IP based on FPGA under four working conditions.The research results show that the proposed method can be employed to reduce the FPGA resource required by DFIG asynchronous machine solution module about 77%.The DFIG-IP designed based on FPGA can achieve a faster-than-real-time acceleration ratio of 27.8 at 500 MHz clock frequency,and a single DFIG-IP can occupy no more than 20%of ZCU106 resources.The method proposed can meet the requirements of DFIG grid connected system real-time simulation in accuracy and speed.The research in this paper can provide a reference for accelerating the research of electromagnetic transient simulation of grid connected systems with a large number of new energy sources.

关 键 词：现场可编程逻辑阵列(FPGA) 虚拟电容等效 并行计算 双馈风力发电机 超实时仿真 

分 类 号：TM315[电气工程—电机]