Interconnection Standard Grid-Support Function Evaluations Using an Automated Hardware-in-the-Loop Testbed
Interconnection Standard Grid-Support Function Evaluations Using an Automated Hardware-in-the-Loop Testbed
复制标题
使用自动化硬件在环测试台进行互连标准电网支持功能评估
DOI：
10.1109/jphotov.2018.2794884
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发表时间：
2018
影响因子：
3
通讯作者：
J. Flicker
中科院分区：
文献类型：
--
作者：
Jay Johnson;Ron Ablinger;R. Bruendlinger;Bob Fox;J. Flicker
电网运营商越来越多地求助于分布式能源(DER)中的高级电网支持功能，以协助配电网电压调节、大系统频率控制和电力系统保护。美国DER认证标准保险商实验室(UL)1741于2016年9月修订，增加了多个电网支持功能的测试程序。桑迪亚国家实验室、SunSpec联盟和越来越多的合作伙伴多年来一直致力于创建一个开源系统验证平台(SVP)，该平台通过与电网模拟器、光伏模拟器、数据采集系统和测试中的可互操作设备进行通信，自动执行DER互联和互操作性测试程序。然而，对于许多组织来说，生成测试条件所需的电源硬件可能是无法承受的。在此，我们讨论了利用控制器硬件在环试验台为UL 1741测试开发SVP测试能力，该试验台不需要使用34.5 kW奥地利理工学院智能电网控制器的电源硬件。包括正常斜坡率、软启动斜坡率、指定功率因数、无功电压和频率-瓦特先进电网功能的分析，以及UL 1741测试协议的有效性。
Grid operators are increasingly turning to advanced grid-support functions in distributed energy resources (DER) to assist with distribution circuit voltage regulation, bulk system frequency control, and power system protection. The U.S. DER certification standard, Underwriters Laboratories (UL) 1741, was revised in September 2016 to add test procedures for multiple grid-support functions. Sandia National Laboratories, SunSpec Alliance, and growing community of collaborators have undertaken a multiyear effort to create an open-source system validation platform (SVP) that automates DER interconnection and interoperability test procedures by communicating with grid simulators, photovoltaic (PV) simulators, data acquisition systems, and interoperable equipment under test. However, the power hardware required for generating the test conditions may be untenable for many organizations. Herein, we discuss development of the SVP testing capabilities for UL 1741 tests utilizing a controller hardware-in-the-loop testbed that precludes the need for power hardware using a 34.5 kW Austrian Institute of Technology smart grid controller. Analysis of normal ramp rate, soft start ramp rate, specified power factor, volt-VAr, and frequency-watt advanced grid functions, and the effectiveness of the UL 1741 test protocols are included.