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논문 기본 정보

자료유형
학술저널
저자정보
Jian Hu (Naval University of Engineering) Lijun Fu (Naval University of Engineering)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.6
발행연도
2018.11
수록면
1,844 - 1,854 (11page)

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초록· 키워드

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Isolated power systems (IPS) are often characterized by a weak grid due to small power grids. The grid side voltage is no longer equivalent to an ideal voltage source of an infinitely big power grid. The conversion control of new energy sources, parameter perturbations as well as the load itself can easily cause the system voltage to oscillate or to become unstable. To solve this problem, increasing the energy-storage power sources is usually used to improve the reliability of a system. In order to provide support for the voltage, the energy-storage power source inverter needs an method to control the voltage source. Therefore, this paper has proposed the active damping control of a voltage source inverter (VSI) based on virtual compensation. By simplifying the VSI double closed-loop control, two feedback compensation channels have been constructed to reduce the VSI output impedance without changing the characteristics of the voltage gain of a system. This improvement allows systems to operate stably in a larger range. A frequency-domain analysis, and simulation and experimental results demonstrate the feasibility and effectiveness of the proposed method.

목차

Abstract
I. INTRODUCTION
II. CONVENTIONAL VSI DOUBLE CLOSED-LOOP CONTROL
III. VSI ACTIVE DAMPING CONTROL BASED ON VIRTUAL COMPENSATION
IV. ANALYSIS OF EXAMPLES
V. CONCLUSION
REFERENCES

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