RISS 검색 - 국내학술지논문 상세보기

다국어 초록 (Multilingual Abstract)

Battery energy storage devices (ESDs) have become more and more commonplace to maintain the stability of islanded power systems. Considering the limitation in inverter capacity and the requirement of flexibility in the ESD, the droop control was implemented in paralleled ESDs for higher capacity and autonomous operation. Under the conventional droop control, state-of-charge (SoC) errors between paralleled ESDs is inevitable in the discharging operation. Thus, some ESDs cease operation earlier than expected. This paper proposes an adaptive accelerating parameter to improve the performance of the SoC error eliminating droop controller under the constraints of a microgrid. The SoC of a battery ESD is employed in the active power droop coefficient, which could eliminate the SoC error during the discharging process. In addition, to expedite the process of SoC error elimination, an adaptive accelerating parameter is dedicated to weaken the adverse effect of the constraints due to the requirement of the system running. Moreover, the stability and feasibility of the proposed control strategy are confirmed by small-signal analysis. The effectiveness of the control scheme is validated by simulation and experiment results.

목차 (Table of Contents)

Abstract
I. INTRODUCTION
II. PRINCIPLE OF THE SOC ERROR ELIMINATING DROOP CONTROLLER
III. PROPOSED ADAPTIVE ACCELERATING PARAMETER
IV. SMALL-SIGNAL MODELING AND STABILITY ANALYSIS

Abstract
I. INTRODUCTION
II. PRINCIPLE OF THE SOC ERROR ELIMINATING DROOP CONTROLLER
III. PROPOSED ADAPTIVE ACCELERATING PARAMETER
IV. SMALL-SIGNAL MODELING AND STABILITY ANALYSIS
V. SIMULATION AND EXPERIMENT RESULTS
VI. CONCLUSION
REFERENCES

참고문헌 (Reference)

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