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논문 기본 정보

자료유형
학술저널
저자정보
Rui You (Qingdao University) Jianyun Chai (Tsinghua University) Xudong Sun (Tsinghua University) Daqiang Bi (Tsinghua University) Xinzhen Wu (Qingdao University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.1
발행연도
2018.1
수록면
195 - 203 (9page)

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초록· 키워드

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In the variable speed Wind Turbine based on ElectroMagnetic Coupler (WT-EMC), a synchronous generator is coupled directly to the grid. Therefore, like conventional power plants, WT-EMC is able to inherently support grid frequency. However, due to the reduced inertia of the synchronous generator, WT-EMC is expected to be controlled to increase its output power in response to a grid frequency drop to support grid frequency. Similar to the grid frequency support control of Type 3 or Type 4 wind turbine, inertial control and droop control can be used to calculate the WT-EMC additional output power reference according to the synchronous generator speed. In this paper, an experimental platform is built to study the grid frequency support from WT-EMC with inertial control and droop control. Two synchronous generators, driven by two induction motors controlled by two converters, are used to emulate the synchronous generators in conventional power plants and in WT-EMCs respectively. The effectiveness of the grid frequency support from WT-EMC with inertial control and droop control responding to a grid frequency drop is validated by experimental results. The selection of the grid frequency support controller and its gain for WT-EMC is analyzed briefly.

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Abstract
I. INTRODUCTION
II. WT-EMC AND ITS FREQUENCY SUPPORT CONTROLLER
III. INTRODUCTION OF THE EXPERIMENTAL PLATFORM
IV. EXPERIMENTAL RESULTS
V. CONCLUSIONS
REFERENCES

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