Hybrid electromechanical-electromagnetic simulation to SVC controller based on ADPSS platform

To test the dynamic performance and damping features of a static var compensator (SVC) controller accurately in large-scale interconnected AC/DC hybrid power systems, it is of vital significance to build the detailed electromagnetic transient model. However, it is unrealistic and time-consuming to build the detailed models of all the devices in the actual large-scale power grid. Utilizing the hybrid simulation function in the advanced digital power system simulator (ADPSS) and by dividing the large-scale power grid into the electromagnetic transient sub-grids and electromechanical sub-grids, the computation speed of real-time simulation is remarkably enhanced by the parallel computational capabilities of digital simulator. The SVC controller and the nearby substation are modelled in the electromagnetic transient sub-grid, and the residue sub-networks are modelled in the electromechanical sub-grid. This paper focuses on the mechanism of the hybrid electromechanical and electromagnetic simulation, the detailed modelling and the ADPSS-based digital closed-loop test methodologies of the SVC controller. Eventually, the validity and effectiveness of the modelling and control methods are confirmed by the experimental results.

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

Mathematics ◽

10.3390/math9131474 ◽

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.

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An Implementation Technology of Electromagnetic Transient Real-time Simulation for Large-scale Grid Based on HYPERSIM

2018 International Conference on Power System Technology (POWERCON) ◽

10.1109/powercon.2018.8602121 ◽

2018 ◽

Cited By ~ 1

Author(s):

WANG Weiwei ◽

ZHU Yiying ◽

LIU Chong ◽

DONG Peng ◽

HU Tao ◽

...

Keyword(s):

Real Time ◽

Large Scale ◽

Real Time Simulation ◽

Electromagnetic Transient ◽

Time Simulation ◽

Large Scale Grid ◽

Scale Grid ◽

Grid Based

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PhotoVoltaic distributed generation for lanai power grid real-time simulation and control integration scenario

SPEEDAM 2010 ◽

10.1109/speedam.2010.5542249 ◽

2010 ◽

Cited By ~ 9

Author(s):

Benjamin L. Schenkman ◽

David G. Wilson ◽

Rush D. Robinett

Keyword(s):

Real Time ◽

Distributed Generation ◽

Power Grid ◽

Real Time Simulation ◽

Time Simulation ◽

Simulation And Control ◽

And Control ◽

Control Integration

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Application of the First Replica Controller in Korean Power Systems

Energies ◽

10.3390/en13133343 ◽

2020 ◽

Vol 13 (13) ◽

pp. 3343 ◽

Cited By ~ 1

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.

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Test Bed for Studying Real-Time Simulation and Control for Shipboard Power Systems

2007 IEEE Electric Ship Technologies Symposium ◽

10.1109/ests.2007.372122 ◽

2007 ◽

Cited By ~ 4

Author(s):

Karen L. Butler-Purry ◽

Gayatri R. Damle ◽

N.D.R. Sarma ◽

Fabian Uriarte ◽

Derek Grant

Keyword(s):

Power Systems ◽

Real Time ◽

Test Bed ◽

Real Time Simulation ◽

Shipboard Power Systems ◽

Shipboard Power ◽

Time Simulation ◽

Simulation And Control ◽

And Control

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Research on Grid Structural Vulnerability Based on Improved Electrical Betweenness

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1070-1072.815 ◽

2014 ◽

Vol 1070-1072 ◽

pp. 815-818

Author(s):

Hui Qu ◽

Xing Xian ◽

Shao Qian Ding ◽

Shan Shan Wen ◽

Tao Lin ◽

...

Keyword(s):

Power Systems ◽

Transfer Coefficient ◽

Vulnerability Assessment ◽

Large Scale ◽

Load Transfer ◽

Power Grid ◽

Structural Vulnerability ◽

Assessment Index ◽

Interconnected Power Systems ◽

The Difference

The emergence of electricity transmission with farther transporting distance, extra-higher voltage and greater transporting power and the formation of the regional interconnected power grid have greatly increased the probability of blackout, this phenomenon has fully exposed the vulnerability of large-scale interconnected power systems. In this paper, Electrical betweenness based on load transfer coefficient is proposed to construct structural vulnerability assessment index. Meanwhile, it is verified that the method is rational and available by analysising the difference of the IEEE-39 system between three attack modes.

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