A Real-Time Real-Power Emulator for a Medium-Voltage High-Speed Electrical Drive: Discussion on Mechanical Vibrations
A Real-Time Real-Power Emulator for a Medium-Voltage High-Speed Electrical Drive: Discussion on Mechanical Vibrations
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用于中压高速电力驱动的实时实时功率仿真器：机械振动的讨论
DOI：
10.1109/tia.2021.3054605
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发表时间：
2021
影响因子：
4.4
通讯作者：
Akagi Hirofumi
中科院分区：
文献类型：
--
作者：
Saito Kenichiro;Akagi Hirofumi
本文从建模与定标、仿真与实验两个方面对中压大功率高速电机驱动系统的实时功率仿真器进行了全面的讨论。一个三相模块化多电平双星形斩波单元逆变器与仿真器以前端到前端的方式连接。DSCC逆变器的电路配置与DSCC整流器相同。该仿真器的特点是综合了电机和负载的机械动力学特性，其电力电子电路由一个三相DSCC整流器、三个交流电感和一个直流侧的双绕组共模电感组成。本文首先对三相6.6 kV 10.9 MW四极9000 r/min感应电动机驱动系统进行建模和标定。然后，作者设计，建造，并测试了三相200 V 10千瓦缩小试验台。从10千瓦的试验台的实验波形，以及从10.9兆瓦的全尺寸和10千瓦缩小系统的模拟波形，导致以下结论：仿真器可以再现电气和机械动力学的三相200 V，10千瓦，四极，9000 r/min的感应电动机与离心压缩机耦合。
This article, based on modeling and scaling as well as simulation and experiment, provides a comprehensive discussion on a real-time real-power emulator for a medium-voltage, high-power, high-speed motor drive. A three-phase modular multilevel double-star chopper-cell (DSCC) inverter under test is connected in front-to-front (FTF) with the emulator. The DSCC inverter is the same in circuit configuration as the DSCC rectifier. This emulator is characterized by integrating mechanical dynamics of both motor and load into it. The power-electronic circuit of the emulator consists of a three-phase DSCC rectifier, three ac inductors, and a single two-winding common-mode inductor at the dc side. This article starts with modeling and scaling of a three-phase 6.6-kV 10.9-MW four-pole 9000-r/min induction motor drive. Then, the authors design, build, and test a three-phase 200-V 10-kW downscaled test bench. Experimental waveforms from the 10-kW test bench, as well as simulated waveforms from the 10.9-MW full-scale and 10-kW downscaled systems, lead to the following conclusion: The emulator can reproduce both electrical and mechanical dynamics of the three-phase 200-V, 10-kW, four-pole, 9000-r/min induction motor coupled with a centrifugal compressor.