Recent advancements in electromagnetic and electromechanical hybrid simulation

Su, H.T.; Chan, Kalok; Snider, L.A.; Chung, T.S.; Fang, D.Z.

doi:10.1109/icpst.2004.1460236

Cited by 11 publications

(4 citation statements)

References 6 publications

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“…The affiliated area of sub-network 7 is sub-networks 2, 4, 8, 9, and 13. The affiliated area of sub-network 20 is sub-networks 18,19,23,24,26, and 25.…”

Section: The Network Partition Resultsmentioning

confidence: 99%

“…To reduce the influence of communication delay on simulation accuracy, an interface electrical quantity interaction method, which is based on the principle of using the other party's simulation data as early as possible, is proposed [16]. When considering interface location selection, there are currently two ideas for developing network partition schemes: To reduce the modeling amount of the electromagnetic sub-system, the interface position is often set at the DC converter bus [17,18]. According to the need to partition the network at a low asymmetry position, the interface position is extended to the TSA side [10,19].…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic Transient-Transient Stability Analysis Hybrid Real-Time Simulation Method of Variable Area of Interest

2018

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To make the object of electromagnetic transient (EMT) simulation flexible to change, the authors propose using the method of electromagnetic transient-transient stability analysis (TSA) hybrid real-time simulation of the variable area of interest. The area where the fault is to be set, or where the operation takes place, is defined as the area of interest. The simulation object is divided into multiple sub-networks. The EMT simulation range is determined according to the voltage drop depth at the boundary of the adjacent sub-network caused by the three-phase short-circuit fault at the boundary of an area of interest. The Norton equivalent is obtained by using the sub-network as a basic unit. The electromagnetic sub-network forms its own Norton equivalent on the TSA side by means of the Norton equivalent admittance of its TSA model. Based on this, the overall framework of hybrid real-time simulation of the variable area of interest is constructed. The fundamental phasor prediction and Norton equivalent current source prediction are adopted to reduce the interface error. The performance of the proposed method in terms of feasibility, flexibility, and effectiveness have been verified by the simulation studies on the IEEE 118-bus system.

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“…The affiliated area of sub-network 7 is sub-networks 2, 4, 8, 9, and 13. The affiliated area of sub-network 20 is sub-networks 18,19,23,24,26, and 25.…”

Section: The Network Partition Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electromagnetic Transient-Transient Stability Analysis Hybrid Real-Time Simulation Method of Variable Area of Interest

2018

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“…However, technical and economic constraints currently exist in terms of increasing the operating speed of CPUs. To overcome these constraints much research have been done on the simulation algorithms and techniques [4][5][6][7]. Most of these techniques are based on the fact that a power system can be divided into several subsystems and the subsystems can be simulated independently by the transmission line model (TLM) [8] which enables the decoupling of two subsystems by the wave propagation delay.…”

Section: Introductionmentioning

confidence: 99%

A Co-Simulation Framework for Power System Analysis

Chae

2016

Energies

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Power system electromagnetic transient (EMT) simulation has been used to study the electromagnetic behavior of power system components. It generally comprises detailed models of the study area and an equivalent circuit which represents an external part of the study area. However, a detailed description of an external system that includes transmission or distribution system models is required to study the interaction among power system components because the number of high power converter based devices in a power grid have been increasing. Since detailed models of the system components are necessary to simulate a series of events such as cascading faults the computational burden of power system simulation has increased. Therefore a more effective and practical framework has been sought to handle this computational challenge. This paper proposes a co-simulation framework including a delay compensation algorithm to compensate the time delayed signals due to network segmentation and a fast and flexible simulation environment composed of non-real time power system EMT simulation on a general purpose computer with a multi core central processing unit (CPU), which is currently very popular owing to its performance. The proposed methods are applied to an AC/DC power system model.

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“…• Interface [25]: Buses between detailed systems and external systems are interface. They are used to exchange data and coordinate simulation order.…”

Section: Classification Of Hybrid Simulationmentioning

confidence: 99%

Parallel Domain Decomposition Based Power System Simulation

Zhao¹

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With the continuous developing of power systems, simulation of modern systems requires more computational resources and more simulation time. Conventional techniques are not efficient due to the large size of equation set and inconvenient modelling methods. Although computing power has increased dramatically, we still need new algorithms to improve the simulation speed. To address the above problems, this thesis proposes an efficient parallel calculation algorithm based on domain decomposition method. The new approach reduces the computational cost by calculating in parallel and splitting the equation set. The proposed approach partitions the system into several subsystems to be solved in parallel on different processors and at the same time preserves the details of the original system. To reduce the cost of communication overhead and computation load, latency characteristic is utilized. Not all the Jacobian matrix is updated in every iteration. Traditional simulators (transient stability and electromagnetic transient) as well as the hybrid simulator are described and compared with this algorithm. Computational examples are used to validate the accuracy of new proposed algorithm and its efficiency.

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Recent advancements in electromagnetic and electromechanical hybrid simulation

Cited by 11 publications

References 6 publications

Electromagnetic Transient-Transient Stability Analysis Hybrid Real-Time Simulation Method of Variable Area of Interest

Electromagnetic Transient-Transient Stability Analysis Hybrid Real-Time Simulation Method of Variable Area of Interest

A Co-Simulation Framework for Power System Analysis

Parallel Domain Decomposition Based Power System Simulation

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