Multicore methods to accelerate ship power system simulations

Uriarte, Fabian M.; Dufour, Christian

doi:10.1109/ests.2013.6523725

Cited by 7 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The comparison is made in terms of simulation resources (CPU cores) consumed, and the simulation step can be achieved. Among them, when carrying out the real-time simulation of the detailed model, for the reason that the switches contained in a single subnet in the RT-LAB real-time simulation platform should not be too much (Uriate and Dufour, 2013); the detailed model is partitioned and decoupled, and each three-level H-bridge in the twelve-phase converter is separated from each other for real-time processing.…”

Section: Comparison and Verification Of The Efficiency Between The High-order Approximation Model And Other Modelsmentioning

confidence: 99%

Real-Time Simulation Modeling Method of Multiphase Converters Based on High-Order Approximation in Micro-grid

Hao

et al. 2022

Front. Energy Res.

View full text Add to dashboard Cite

As more and more distributed energy resources accessing in a micro-grid, the electromagnetic transient simulation of the whole system becomes extremely complicated due to the increase of multiphase converters. The traditional real-time simulation models of multiphase converters are low in efficiency for their large number of electronic switches and power system nodes. To solve this problem, an efficient real-time simulation modeling method based on high-order approximation is proposed. Starting with the symmetry of structure, the twelve-phase converter and induction motor are equivalent to a three-phase converter and induction motor and thus reducing the order of the model. The switching function model of the three-phase converter is derived, and the mathematical expressions of switching functions are calculated by high-order approximation expansion of the Fourier series; then, the dc input current of the three-phase converter is formulated theoretically. Counteracting the harmonics by means of phase-shifting, the high-order approximation model of the twelve-phase converter is constructed. Finally, the real-time simulation platform and experimental platform of the twelve-phase frequency converter and induction motor are built; the simulation results verify the high efficiency and accuracy of the proposed real-time simulation model compared with traditional models of the multiphase frequency converter.

show abstract

Section: Comparison and Verification Of The Efficiency Between The High-order Approximation Model And Other Modelsmentioning

confidence: 99%

Real-Time Simulation Modeling Method of Multiphase Converters Based on High-Order Approximation in Micro-grid

Hao

et al. 2022

Front. Energy Res.

View full text Add to dashboard Cite

show abstract

“…The architecture of such a zonal MVDC SPS is able to maximize operational capability even under extremely adverse conditions. For the power sources, there are two main turbine generators, each of which produces 36MW power at 4.16 kV, 240 Hz [20], and two auxiliary turbine generators producing 4MW power each. One main and one auxiliary turbine generator are connected to each longitudinal bus.…”

Section: Zonal Mvdc Shipboard Power System Modelmentioning

confidence: 99%

A Heterogeneous Multi-Agent System Model With Navigational Feedback for Load Demand Management of a Zonal Medium Voltage DC Shipboard Power System

Yang

Pan

et al. 2019

IEEE Access

View full text Add to dashboard Cite

Increased demand of electric ship power with emerging requirements for serving highly dynamic loads at limited power sources, has motivated the development of medium voltage DC shipboard power systems. As different types of power converters can be involved in the same system, advanced load management scheme is required to ensure stable and optimal operation under various conditions. In this paper, a heterogeneous multi-agent system model is established for the load demand management of a zonal medium voltage DC shipboard power system, where different types of DC-DC converters with diverse conversion ratios are considered as heterogeneous agents. Then, a flocking based cooperative control protocol is designed to achieve the group objective, where navigational feedback is introduced to ensure that each agent runs within a limited range. Finally, numerical simulations are conducted to verify the performance of the proposed model. Compared with the existing work, our contribution lies in: 1) The heterogeneous multi-agent system model we formulated for a combination of DC-DC converters with different types and diverse voltage levels is more consistent with the actual power system and each converter can be controlled individually according to load ratings and priorities; 2) The modified navigational feedback with the function of confining the lower and upper bound of agents can significantly improve the control effect of the cooperative control protocol. INDEX TERMS Medium voltage DC shipboard power system, heterogeneous multi-agent system model, load demand management, DC-DC converter, navigational feedback. PEIFENG XI received the B.S. degree in electronic engineering from Shanghai University, in 2004, and the M.S. degree in electronic engineering from Shanghai Jiao Tong University, in 2010. He is currently with the Shanghai Electrical Apparatus Research Institute. He is also a member of the Shanghai Key Laboratory of Smart Grid Demand Response, Shanghai, China. His current research interests include smart grid, demand response, and energy management.

show abstract

“…Multicore parallel computing has become the main way to realize real-time simulation of large-scale power systems [1,2]. In general, the large-scale system is divided into multiple small-scale sub-systems, and the calculation efficiency can be significantly improved by evenly distributing these subsystems among multiple cores.…”

Section: Introductionmentioning

confidence: 99%

Real‐time simulation multi‐point decoupling method of power systems based on terminal resistor

Hao¹,

Fu²,

Xiao³

2022

IET Generation Trans & Dist

View full text Add to dashboard Cite

Traditional decoupling methods in real-time simulation of complex power systems are poor in stability and unsatisfactory in use. In order to solve this problem, an improved decoupling method based on a terminal resistor is proposed. By paralleling a fixed-value resistor and inverse-paralleling a controlled current source in the traditional ideal transformer interface, the stability is greatly improved and the range of its application is broadened. Then, the value range of resistance is deduced theoretically. Furthermore, this interface is extended to the multi-point decoupling systems; the different terminal resistances in multiple interfaces under the constraints of stability and accuracy are designed. Finally, the typical single-point and multi-point decoupling systems are constructed on the Rt-lab realtime simulation platform. The simulation results verify the effectiveness of the proposed decoupling method and indicate that the design of terminal resistances is correct either in single-point decoupling systems or in multi-point decoupling systems.

show abstract

Multicore methods to accelerate ship power system simulations

Cited by 7 publications

References 19 publications

Real-Time Simulation Modeling Method of Multiphase Converters Based on High-Order Approximation in Micro-grid

Real-Time Simulation Modeling Method of Multiphase Converters Based on High-Order Approximation in Micro-grid

A Heterogeneous Multi-Agent System Model With Navigational Feedback for Load Demand Management of a Zonal Medium Voltage DC Shipboard Power System

Real‐time simulation multi‐point decoupling method of power systems based on terminal resistor

Contact Info

Product

Resources

About