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작성일 : 19-05-21 16:42
[국제학술대회] A Modified Droop Control Method for Parallel-Connected Three-Phase Inverter in Railway Auxiliary Power Supply
 글쓴이 : 운영자
조회 : 495  
 논문명 : A Modified Droop Control Method for Parallel-Connected Three-Phase Inverter in Railway Auxiliary Power Supply [국제학술대회]
 논문집명 : 2019 ITEC
 권호 : -
 발행년도 : 2019
 저자 : 최봉연, 강진욱, 강경민, 이훈, 이상석, 원충연
   (ID76)_ITEC2019.pdf (1.4M) [6] DATE : 2019-05-21 16:42:10
Abstrab:
In this paper, a modified droop control method is proposed to minimize variation of common bus voltage. The proposed control method models line impedance between load and auxiliary power supply to compensate for voltage drop of power line. The expected voltage drop of the modelled line impedance is mathematically analyzed and applied to the traditional droop curve to design the modified drop equation. The controller has a cascaded structure with inner current and voltage control loops and outer power control loop. A droop curve for power control is applied a modified droop equation to reduce the load voltage drop due to the line impedance. The validity of a modified droop control is verified using two 85kVA auxiliary power supply units connected in parallel.
 
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