Real time digital power system simulator design considerations and relay performance evaluation

Jakominich, D.; Krebs, R.; Retzmann, D.; Kumar, A. Naresh

doi:10.1109/61.772314

Cited by 34 publications

(7 citation statements)

References 12 publications

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“…eMEGASIM offers a direct platform compatible with ePHASORSIM, which procure maximum versatility from a large power grid simulation to highly detailed power electronic simulation. ePHASORSIM allows the simulation of massive grids going up to 20k buses on a single core computer and its capability to perform parallel computing allowing unleashed performances for lager realtime simulation [31], [32], [33], [34], [39]. The typical time step of these two systems is displayed by Fig.4.…”

Section: The Boundary Investigation Of Real-time Simulationmentioning

confidence: 99%

Research on Performance of Real-Time Simulation Based on Inverter-Dominated Power Grid

et al. 2021

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This paper proposes two methods to improve the performance in real-time simulation. The increased inverter-based generations are gradually shifting the operation of the power grid. Consequently, the investigation for the safe operation and further application is essential in the inverter-dominated power grid. As the simulated number of non-linear switch elements like inverter increases, the numerical complexity of the simulation model rises exponentially. Accordingly, the scale of the simulated power grid with inverters is normally constricted by taking account of the burdensome numerical calculation. The emerging of realtime simulator provides the opportunity to enable the simulation of the large-scale power grids. Nevertheless, the simulation boundary condition is still exceeded in the inverter-dominated model. Hence, the improvement of the performance to extend the limitation in real-time simulation is constituted in this paper. The first method proposed is co-simulation. This approach is to simulate the power grid and inverters by models in different deep levels. The phasor model and electrical-mechanical-transient model are utilized to develop the co-simulation model. The second method is network reduction. Based on the dynamic feature of the inverter, it is reduced to an equivalent current source, which decreases the complexity of the model and retains its characteristics. The evaluation of the methods is demonstrated by two indexes: real-time capability and the similarity degree. INDEX TERMS real-time simulation, inverter-dominated power grid, co-simulation, network reduction

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Section: The Boundary Investigation Of Real-time Simulationmentioning

confidence: 99%

Research on Performance of Real-Time Simulation Based on Inverter-Dominated Power Grid

et al. 2021

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“…S IMULATION has always been a mainstay at all stages of the development and operation of power systems-planning, design, prototyping, and testing [1]. Prior to the advent of digital computers, analog simulators, based on scaled-down models, were relied upon to emulate and predict the behavior of actual power systems.…”

Section: Introductionmentioning

confidence: 99%

A Versatile Cluster-Based Real-Time Digital Simulator for Power Engineering Research

Pak

Faruque

Nie

et al. 2006

IEEE Trans. Power Syst.

101

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This paper presents the development of a unique parallel and distributed real-time digital simulator for power engineering research at the University of Alberta. The simulator is built entirely from commodity-off-the-shelf (COTS) hardware and software components, making it very flexible and scalable. In parallel multi-tasking operations, a combination of real-time Linux operating system and an ultra-fast network forms the backbone for the internal communication between the 16 powerful processors of the Xeon-Cluster. Field programmable gate array (FPGA)-based multi-channel digital and analog I/O ports are interfaced to communicate with the external hardware components. The model development software utilized for power applications is based on the highly customizable industry-standard MATLAB/SIMULINK environment. A detailed case study of the real-time simulation of a three-level 12-pulse vector-controlled ac drive is presented to illustrate the precision capabilities of the simulator. Multiple integration algorithms and multirate computation have been applied for the simulation of the system, with slow (machine) and fast (converter) dynamic components. Real-time simulation of the entire system has been achieved with a maximum computation time of 5.35 s on a step-size of 10 s for the first time. Results obtained from the real-time simulation have been validated with an offline simulation using PSCAD/EMTDC.

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“…A more attractive approach is to interface the actual digital controller with a real-time simulator. Real-time digital simulation of power systems is becoming increasingly popular for testing of new FACTS and HVDC controllers and protection systems [1,2]. The simulator provides real-time (on-line) simulation of the PEs and the host power system.…”

Section: Introductionmentioning

confidence: 99%

Real-time digital simulation and experimental verification of a D-STATCOM interfaced with a digital controller

Dinavahi

Iravani

Bonert

2004

International Journal of Electrical Power & Energy Systems

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Real time digital power system simulator design considerations and relay performance evaluation

Cited by 34 publications

References 12 publications

Research on Performance of Real-Time Simulation Based on Inverter-Dominated Power Grid

Research on Performance of Real-Time Simulation Based on Inverter-Dominated Power Grid

A Versatile Cluster-Based Real-Time Digital Simulator for Power Engineering Research

Real-time digital simulation and experimental verification of a D-STATCOM interfaced with a digital controller

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