scholarly journals Hardware-in-the-Loop Simulation Using Real-Time Hybrid-Simulator for Dynamic Performance Test of Power Electronics Equipment in Large Power System

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3955
Author(s):  
Jiyoung Song ◽  
Kyeon Hur ◽  
Jeehoon Lee ◽  
Hyunjae Lee ◽  
Jaegul Lee ◽  
...  
Keyword(s):  
Power System ◽  
Power Electronics ◽  
Real Time ◽  
Large Scale ◽  
Performance Test ◽  
Dynamic Performance ◽  
Lessons Learned ◽  
Hardware In The Loop ◽  
Large Power ◽  
Hybrid Simulator

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.

scholarly journals Application of the First Replica Controller in Korean Power Systems

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3343 ◽  
Author(s):  
Jiyoung Song ◽  
Seungchan Oh ◽  
Jaegul Lee ◽  
Jeonghoon Shin ◽  
Gilsoo Jang
Keyword(s):  
Power Systems ◽  
Power System ◽  
Large Scale ◽  
Performance Test ◽  
Dynamic Performance ◽  
Parameter Tuning ◽  
Electric Utility ◽  
Acceptance Test ◽  
Thyristor Controlled Series Compensator ◽  
Practical Field

The purpose of this paper is to introduce, examine, and evaluate the industrial experiences and effectiveness of a Thyristor Controlled Series Compensator (TCSC) replica controller installed in Korea in 2019 through a review of its configuration, test platform, and practical application, and further to propose operational guidelines for replica controllers. Four representative practical cases were conducted: a Dynamic Performance Test (DPT) under a sufficiently large-scale power system prior to the Site Acceptance Test (SAT), pre-verification for on-site controller modification during operation stage, parameter tuning to mitigate the control interaction, and time domain simulation for Sub-Synchronous Torsional Interaction (SSTI). None of these four cases can be performed in a Factory Acceptance Test (FAT) or on-site. Therefore, TCSC control performance was accurately verified under the entire Korean power system based on a large-scale real-time simulator, which demonstrated its effectiveness as a powerful tool for operations including multiple power electronics devices. Our review herein of these four practical cases is expected to show the usefulness of replica controllers, to demonstrate their strength to deal with practical field events, and to contribute to the further expansion of the application area from a perspective of electric utility.

scholarly journals A Novel Methodology for Adaptive Coordination of Multiple Controllers in Electrical Grids

Mathematics ◽  
2021 ◽  
Vol 9 (13) ◽  
pp. 1474
Author(s):  
Ruben Tapia-Olvera ◽  
Francisco Beltran-Carbajal ◽  
Antonio Valderrabano-Gonzalez ◽  
Omar Aguilar-Mejia
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
Large Scale ◽  
Short Circuit ◽  
Dynamic Performance ◽  
Low Frequency ◽  
Electric Power System ◽  
Design Stage ◽  
Positive Interaction

This proposal is aimed to overcome the problem that arises when diverse regulation devices and controlling strategies are involved in electric power systems regulation design. When new devices are included in electric power system after the topology and regulation goals were defined, a new design stage is generally needed to obtain the desired outputs. Moreover, if the initial design is based on a linearized model around an equilibrium point, the new conditions might degrade the whole performance of the system. Our proposal demonstrates that the power system performance can be guaranteed with one design stage when an adequate adaptive scheme is updating some critic controllers’ gains. For large-scale power systems, this feature is illustrated with the use of time domain simulations, showing the dynamic behavior of the significant variables. The transient response is enhanced in terms of maximum overshoot and settling time. This is demonstrated using the deviation between the behavior of some important variables with StatCom, but without or with PSS. A B-Spline neural networks algorithm is used to define the best controllers’ gains to efficiently attenuate low frequency oscillations when a short circuit event is presented. This strategy avoids the parameters and power system model dependency; only a dataset of typical variable measurements is required to achieve the expected behavior. The inclusion of PSS and StatCom with positive interaction, enhances the dynamic performance of the system while illustrating the ability of the strategy in adding different controllers in only one design stage.

scholarly journals Real-Time Hardware-In-The-Loop (HIL) Testing for Power Electronics Controllers

2012 ◽  
Author(s):  
Seung Tae Cha ◽  
Qiuwei Wu ◽  
Arne Hejde Nielsen ◽  
Jacob Østergaard ◽  
In Kwon Park
Keyword(s):  
Power Electronics ◽  
Real Time ◽  
Hardware In The Loop

HIL Simulation of Elastomer Supported Machine Bed Dynamics

2014 ◽  
Author(s):  
Tuomas Saarikoski ◽  
Matti Pietola
Keyword(s):  
Real Time ◽  
Process Model ◽  
Dynamic Performance ◽  
Real Life ◽  
Accurate Information ◽  
Hardware In The Loop ◽  
Hydraulic Actuator ◽  
Operating Environment ◽  
External Excitation ◽  
Good Repeatability

This paper presents a Hardware-in-the-Loop (HIL) test setup used for studying the dynamics of an elastomer supported machine bed. The setup uses real elastomer dampers and modeled machine dynamics (process model) connected together via real-time interface. The HIL approach was chosen since the elastomers are a critical part of the system, however, determining their properties for engineering needs can be a challenging task. Accurate elastomer models include many parameters that can only be determined by experimentally, and even then their implementation for real-life applications is not always practical. Using real elastomers supports in the simulation removes uncertainties associated with classic elastomer models, while simulated process makes it possible to test different scenarios fast and with good repeatability. The process model includes a description of the machine body, a rotating unbalanced drive mechanism creating cyclic loading and external excitation forces acting on the machine. The method enables testing of machine bed supports in a realistic operating environment. A test rig was built for housing the elastomers incorporating a hydraulic actuator for producing the process movement. The hydraulic circuit was designed for good dynamic performance with predictive control to minimize delays in the real-time interface. It was found that the HIL-setup can provide fast and accurate information about the plant model behavior in different operating scenarios using the elastomer supports.

scholarly journals Real-Time Hardware-in-The-Loop Platform for Hybrid AC/DC Power System Studies

2019 ◽  
Author(s):  
Tibin Joseph ◽  
Khadijat Jose ◽  
Carlos E. Ugalde-Loo ◽  
Gen Li ◽  
Jun Liang
Keyword(s):  
Power System ◽  
Real Time ◽  
Hardware In The Loop ◽  
Dc Power
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