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Power electronic systems

Power electronic systems

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Power Systems Electromagnetic Transients Simulation — Recommend this title to your library

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The computer implementation of power electronic devices in electromagnetic transient programs has taken much of the development effort in recent years, aiming at preserving the elegance and efficiency of the EMTP algorithm. The main feature that characterises power electronic devices is the use of frequent periodic switching of the power components under their control. The incorporation of power electronics in EMT simulation is discussed in this chapter with reference to the EMTDC version but appropriate references are made, as required, to other EMTP-based algorithms. This is partly due to the fact that the EMTDC program was specifically developed for the simulation of HVDC transmission and partly to the authors' involvement in the development of some of its recent components. A concise description of the PSCAD/EMTDC program structure is given in Appendix A. This chapter also describes the state variable implementation of a.c.-d.c. converters and systems, which offers some advantages over the EMTP solution, as well as a hybrid algorithm involving both the state variable and EMTP methods.

Inspec keywords: EMTP; HVDC power convertors; AC-DC power convertors; HVDC power transmission; switching convertors

Other keywords: power electronic devices; EMT simulation; electromagnetic transient programs; AC-DC converters; power electronic systems; PSCAD-EMTDC program structure; power components; EMTP algorithm; HVDC transmission simulation; EMTDC program

Subjects: Power convertors and power supplies to apparatus

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