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논문 기본 정보

자료유형
학술저널
저자정보
Chang Yuan (North China Electric Power University) Chang Liu (North China Electric Power University) Xueyin Zhang (North China Electric Power University) Tianyang Zhao (North China Electric Power University) Xiangning Xiao (North China Electric Power University) Niang Tang (Electric Power Research Institute of Guangdong Power Grid Co)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.17 No.3
발행연도
2017.5
수록면
766 - 776 (11page)

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초록· 키워드

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In modern power systems, high penetration of distributed generators (DGs) results in high stress on system 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 named virtual synchronous machine (VSM) was proposed, which brought new characteristics to inverters such as synchronous machines (SMs). In addition, different active power droop controls for VSMs are being proposed in literatures. However, they are quite different in terms of their dynamic characteristics despite of the similar control laws. In this paper, mathematical models of a VSM adopting different active power droop controls are built and analyzed. The dynamic performance of the VSM output active power and virtual rotor angular frequency are presented for different models. The influences of the damping factor and droop coefficient on the VSM dynamic behaviors are also investigated in detail. Finally, the theoretical analysis is verified by simulations and experimental results.

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Abstract
I. INTRODUCTION
II. OPERATING PRINCIPLE OF A VSM
III. MODELING OF A VSM
IV. THEORETICAL ANALYSIS OF THE SYSTEM CHARACTERISTICS OF A VSM
V. CONTROL SYSTEM
VI. SIMULATION RESULTS
VII. EXPERIMENTAL RESULTS
VIII. CONCLUSIONS
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