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논문 기본 정보

자료유형
학술저널
저자정보
Chang Yuan (North China Electric Power University) Chang Liu (State Grid Jinan Power Supply Company) Dan Yang (North China Electric Power University) Ruibing Zhou (North China Electric Power University) Niang Tang (Guangdong Power Grid)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.4
발행연도
2018.7
수록면
1,111 - 1,126 (16page)

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초록· 키워드

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In modern power systems, distributed generators (DGs) result in high stress on system frequency stability. Apart from the intermittent nature of DGs, most DGs do not contribute inertia or damping to systems. As a result, a new control method referred to as a virtual synchronous machine (VSM) has been proposed, which brought new characteristics to inverters such as synchronous machines (SM). DGs employing an energy storage system (ESS) provide inertia and damping through VSM control. Meanwhile, energy storage presents some physical constraints in the VSM implementation level. In this paper, a VSM mathematical model is built and analyzed. The dynamic responses of the output active power are presented when a step change in the frequency occurs. The influences of the inertia constant, damping factor and operating point on the ESS volume margins are investigated. In addition, physical constraints are proposed based on these analyses. The proposed physical constraints are simulated using PSCAD/EMTDC software and tested through RTDS experiment. Both simulation and RTDS test results verify the analysis.

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Abstract
I. INTRODUCTION
II. ANALYSIS OF PHYSICAL CONSTRAINTS
III. PARAMETER INFLUENCES ON THE DYNAMIC BEHAVIORS OF VSMS
IV. SIMULATION RESULTS
V. RTDS EXPERIMENTAL RESULTS
VI. CONCLUSIONS
REFERENCES

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