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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.1
- 수록면
- 175 - 182 (8page)
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Tracking harmonic current quickly and precisely is one of the keys to designing active power filters (APF). In the past, the current state feedback decoupling PI control was an effective means for three-phase systems in the current control of constant voltage constant frequency inverters and high frequency PWM reversible rectifiers. This paper analyzes in detail the limitation of the conventional PI conditioner in the APF application field and presents a novel PI control method. Canceling the delay of one sampling period and the misadjustment for tracking the harmonic current is the key problem of this PI control. In this PI control, the predictive output current value is obtained by a state observer. The delay of one sampling period is remedied in this digital control system by the state observer. The predictive harmonic command current value is obtained by a repetitive predictor synchronously. The repetitive predictor can achieve better predictions of the harmonic current. By this means, the misadjustment of the conventional PI control for tracking the harmonic current is cancelled. The experiment results with a three-level NPC APF indicate that the steady-state accuracy and dynamic response of this method are satisfying when the proposed control scheme is implemented.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. OPERATING PRINCIPLE AND CONTROL SYSTEM
Ⅲ. NOVEL PI CONTROL METHOD
Ⅳ. EXPERIMENTAL RESULTS
Ⅴ. CONCLUSIONS
REFERENCES
참고문헌 (26)
참고문헌 신청
1. [학술지(정기간행물)] - P. Kumar / 2009 / Soft computing techniques for the control of an active power filter / IEEE Trans. Power Del 24 (1) : 452 ~ 461
2. [학술지(정기간행물)] - H. A. Ramos-Carranza / 2008 / Real-Time Shunt Active Power Filter Compensation / IEEE Trans. Power Del 23 (4) : 2623 ~ 2625
3. [학술지(정기간행물)] - B. Singh / 2008 / Selective compensation of power-quality problems through active power filter by current decomposition / IEEE Trans. Power Del 23 (2) : 792 ~ 799
4. [학술지(정기간행물)] - S. Hirve / 2007 / PLL-Less Active Power Filter Based on One-Cycle Control for Compensating Unbalanced Loads in Three-Phase Four-Wire System / IEEE Trans. Power Del 22 (4) : 2457 ~ 2465
5. [학술지(정기간행물)] - N. Akira / 2007 / A new neutral-point-clamped PWM inverter / IEEE Trans. Ind. Applicat 17 (3) : 518 ~ 523
2. [학술지(정기간행물)] - H. A. Ramos-Carranza / 2008 / Real-Time Shunt Active Power Filter Compensation / IEEE Trans. Power Del 23 (4) : 2623 ~ 2625
3. [학술지(정기간행물)] - B. Singh / 2008 / Selective compensation of power-quality problems through active power filter by current decomposition / IEEE Trans. Power Del 23 (2) : 792 ~ 799
4. [학술지(정기간행물)] - S. Hirve / 2007 / PLL-Less Active Power Filter Based on One-Cycle Control for Compensating Unbalanced Loads in Three-Phase Four-Wire System / IEEE Trans. Power Del 22 (4) : 2457 ~ 2465
5. [학술지(정기간행물)] - N. Akira / 2007 / A new neutral-point-clamped PWM inverter / IEEE Trans. Ind. Applicat 17 (3) : 518 ~ 523
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