Fast Active Stabilization Method of Grid-Connected Power Conversion System

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420271
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Doshisha University
• Principal Investigator: Kato Toshiji 同志社大学, 理工学部, 教授 (40148375)
• Co-Investigator(Kenkyū-buntansha): INOUE KAORU 同志社大学, 理工学部, 准教授 (60343662)
• Research Collaborator: HIRONAKA RYOTARO 同志社大学, 工学研究科, 学生 ; AKIYAMA YUSUKE 同志社大学, 工学研究科, 学生 ; UEDA SHIGEHIKO 同志社大学, 工学研究科, 学生 ; SATO SHINTARO 同志社大学, 工学研究科, 学生 ; OGAWA TAKUMI 同志社大学, 工学研究科, 学生 ; ISHIDA MASANARI 同志社大学, 工学研究科, 学生 ; AZABU MASASHI 同志社大学, 工学研究科, 学生 ; OHASHI KOKI 同志社大学, 工学研究科, 学生 ; TAKAMI YUKI 同志社大学, 工学研究科, 学生
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: アクティブダンプ制御 / 仮想抵抗 / 安定性解析 / リアプノフ関数 / 正弦波補償器 / ディジタル制御 / 高速シミュレーション / 回路分割法

Outline of Final Research Achievements

This study developed three methods for grid-connected power conversion systems; filter-resonance damping control, fast and wide system stabilization, and efficient simulation methods. An active damping control based on virtual resistors is developed to suppress filter resonances. An energy-based control method based on the Lyapunov function is developed to stabilize the system fast and widely. A new stabilized control method which can suppress the resonance is developed with combination of the above two control methods, and it is validated theoretically and experimentally. A fast and efficient simulation method based on the circuit-partitioning technique is developed and modified for applications including digital control programs. The three developed methods are useful to develop stable grid systems without filter resonances.

Free Research Field

工学