Abstract
This paper presents the hardware-in-the-loop simulation for dynamic performance test (HILS-DPT) of power electronic equipment replicas using a real-time hybrid simulator (RTHS). The authors developed the procedure of HILS-DPT, and as an actual case example, the results of HILS-DPT of Static VAR Compensator (SVC) replica using RTHS is presented. RTHS is a co-simulation tool that synthesizes real-time simulator (RTS) with transient stability program to perform real-time dynamic simulation of a large power system. As power electronics applications have been increasing, the electric utilities have performed HILS-DPT of the power electronics equipment to validate the performance and investigate interactions. Because inspection tests are limited in their ability to validate its impact on the power system during various contingencies, all power electronics equipment newly installed in the Korean power system should take HILS-DPT using large-scale RTS with replicas since 2018. Although large-scaled RTS offers an accuracy improvement, it requires lots of hardware resources, time, and effort to model and simulate the equipment and power systems. Therefore, the authors performed SVC HILS-DPT using RTHS, and the result of the first practical application of RTHS present feasibility comparing the result of HILS-DPT using large-scale RTS. The authors will discuss the test results and share lessons learned from the industrial experience of HILS-DPT using RTHS.
Highlights
As the power system has become larger and more complicated, the power electronic devices, such as high-voltage direct current (HVDC) and flexible AC transmission systems (FACTS), have been increased to improve stability and controllability and flexibility of the power systems
In the Korean power system, three HVDCs and eleven FACTSs are in operation, four HVDCs are under construction, and two HVDCs and seven FACTSs are under planning [1]
We will investigate the feasibility of HILS-dynamic performance test (DPT) using Real-time Hybrid Simulator (RTHS) with a practical case of Shin-Jecheon Static VAR Compensator (SVC) compared to RTHS and large-scale real-time simulator (RTS)
Summary
As the power system has become larger and more complicated, the power electronic devices, such as high-voltage direct current (HVDC) and flexible AC transmission systems (FACTS), have been increased to improve stability and controllability and flexibility of the power systems. RTHS exchanges network power flow data of RTS and TSA program via the fiber-optic dynamic performance test (HILS-DPT). HVDC and FACTS without controller and replicas can be used to study the interaction between power systems and power equivalent andTherefore, improvedwe thewill process of simulation case development forusing efficient modeling electronics network equipment. The authors investigated and explored the feasibility of applying representative case, HILS-DPT of the Shin-Jecheon SVC controller (+675/−225 MVar) using RTHS is to HILS-DPT. The TSA program has the strength to build a wide area network, even though it lacks accuracy for power electronic equipment control and protection or interaction study. RTS has better accuracy of dynamic performance simulation for power electronics equipment. We will investigate the feasibility of HILS-DPT using RTHS with a practical case of Shin-Jecheon SVC compared to RTHS and large-scale RTS.
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