2018 Fiscal Year Final Research Report
A Simplified Control Strategy for Bidirectional Charger for Electric Vehicle with Power Quality Compensator and Improved Power Conversion Efficiency by SiC-MOSFETs
| Project/Area Number |
16K06225
|
|---|
| 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 | Yamaguchi University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
山田 洋明 山口大学, 大学院創成科学研究科, 准教授 (00455099)
|
|---|
| Research Collaborator |
Ikeda Fuka
|
|---|
| Project Period (FY) |
2016-04-01 – 2019-03-31
|
| Keywords | 電気自動車用双方バッテリチャージャ / 単相三線式配電 / 高調波補償 / 家電機器 / 3レグ構成PWM整流器 / 直流キャパシタ電圧一定制御 |
|---|
| Outline of Final Research Achievements |
Diode rectifiers are typically included in modern consumer electronics. The load currents of domestic consumer in single-phase three-wire distribution feeders are unbalanced and distorted. It is theoretically shown that the constant dc-capacitor voltage-control (CDCVC)-based strategy for the three-leg PWM rectifier, which performs as smart charger (SC), can compensate unbalanced active, reactive and harmonic components on the source side in the domestic consumer. The validity and high practicability of the CDCVC-based strategy is confirmed by digital computer simulation using PSIM software. A reduced-scale experimental model is constructed and tested. Experimental results demonstrate that balanced and sinusoidal source-side currents in the domestic consumer are achieved with the CDCVC-based strategy for the three-leg PWM rectifier. It is shown experimentally that the conversion efficiency of the three-leg PWM rectifier with SiC-MOSFETs is improved.
|
| Free Research Field |
パワーエレクトロニクス
|
| Academic Significance and Societal Importance of the Research Achievements |
単相三線式配電線が普及している国や地域は少なく，単相三線式配電線の電力品質保証についての検討例は世界的にも非常に少ない。このため，電気自動車用双方向バッテリチャージャに電力品質保証機能を付加し，単相三線式配電線の電力品質向上について検討したことに学術的な意義がある。さらに，電力品質保証のための制御法として，瞬時有効・無効電流と高調波電流の演算ブロックを省略し，3レグ方式PWM整流回路の直流キャパシタ電圧一定制御ブッロクだけを用いて電力品質保証を達成した点も学術的な意義が認められる。これにより，柱上変圧器の効率を改善し国レベルでの電力損失低減に貢献できることが社会的意義であると考えられる。
|
