Industrial motor systems make up a quarter of all electric sales in the United States. Variable speed drives (VSDs) can provide energy efficiency savings to the customer by regulating motor speed based on specific and varying needs. In addition to the benefits provided to the customer, VSDs can provide support to the grid through ancillary services. The Center for Ultra-Wide-Area Resilient Electric Energy Transmission Networks (CURENT) developed a power electronics converter-based grid emulator to allow testing of various power system architectures and demonstration of key technologies in monitoring, control, actuation, and visualization. This paper proposes using an active front-end VSD's connected motor load to provide frequency regulation to a large scale power grid. Each part of the emulator is described including motor and power electronics model and control. The proposed frequency regulation is implemented in VSDs and modeled in both a transmission system in EMTDC/PSCAD and verified on CURENT's hardware testbed.

中文翻译：

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使用电动机驱动器进行短期电网扰动的主频率控制

工业电机系统占美国所有电力销售量的四分之一。变速驱动器（VSD）可以根据特定和不断变化的需求调节电动机的速度，从而为客户节省能源效率。除了提供给客户的好处外，VSD还可以通过辅助服务为网格提供支持。超宽带弹性电能传输网络中心（CURENT）开发了基于电力电子转换器的电网仿真器，可以测试各种电力系统架构，并演示监控，控制，启动和可视化的关键技术。本文提出了使用有源前端VSD的连接电动机负载为大型电网提供频率调节。描述了仿真器的每个部分，包括电动机和电力电子设备的模型和控制。拟议的频率调节在VSD中实现，并在EMTDC / PSCAD的传输系统中建模，并在CURENT的硬件测试平台上进行了验证。