Journal ArticleDOI
A DC Capacitor Voltage Control Method for Active Power Filters Using Modified Reference Including the Theoretically Derived Voltage Ripple
Tomoyuki Mannen,Hideaki Fujita +1 more
TLDR
In this paper, the authors proposed a new dc capacitor voltage control method suitable for active power filters equipped with a small dc capacitor, which can regulate the mean value of the DC capacitor voltage under a large voltage ripple condition.Abstract:
This paper proposes a new dc capacitor voltage control method suitable for active power filters equipped with a small dc capacitor. The proposed control method calculates the theoretical dc capacitor voltage ripple and provides it to the dc capacitor voltage feedback controller as the reference. As a result, the proposed method has the capability to regulate the mean value of the dc capacitor voltage under a large voltage ripple condition. The proposed method also allows us to use a high feedback gain for suppressing the capacitor voltage fluctuations without any performance deterioration in the harmonic compensation. Experimental results confirm a good harmonic compensation and an effective voltage regulation performance under a small dc capacitor condition. The results also demonstrate a significant improvement in the capacitor voltage regulation even when a sudden load change occurs.read more
Citations
More filters
Journal ArticleDOI
An active power filter based on a three-level inverter and 3D-SVPWM for selective harmonic and reactive compensation
Jose Luis Monroy-Morales,David Campos-Gaona,Maximo Hernandez-Angeles,Rafael Pena-Alzola,José Leonardo Guardado-Zavala +4 more
TL;DR: In this paper, a three-phase three-level neutral point clamped (NPC) inverter with selective harmonic compensation capabilities and reactive power compensation is proposed to detect and control individual or a set of harmonics using d and q variables.
Journal ArticleDOI
A Three-Phase Grid-Connected Inverter Equipped With a Shunt Instantaneous Reactive Power Compensator
Kazuto Takagi,Hideaki Fujita +1 more
TL;DR: A three-phase grid-connected inverter for commercial-scale photovoltaic systems that can synthesize a sinusoidal output current by controlling only instantaneous reactive power, thus eliminating the need for electrolytic capacitors.
Journal ArticleDOI
Adaptive DC-Link Voltage Control for Shunt Active Power Filters Based on Model Predictive Control
Juan Zhou,Yalei Yuan,Hao Dong +2 more
TL;DR: Optimize DC-link voltage was obtained in this study to enhance compensation adaptability for variable nonlinear loads and fluctuation in grid voltage to reduce switching noise and switching loss during operation of shunt active power filters.
Journal ArticleDOI
A Simplified Minimum DC-Link Voltage Control Strategy for Shunt Active Power Filters
TL;DR: In this article, a simplified minimum DC-link voltage control strategy for active power filter (APF) is proposed to reduce the calculation burden and the implementation difficulty in application, avoiding the interference from external parameters on the compensation effect.
Journal ArticleDOI
Highly efficient three-phase grid-connected parallel inverter system
Evren Isen,Ahmet Faruk Bakan +1 more
TL;DR: In this paper, a new three-phase grid-connected inverter system is proposed, which includes two inverters and is analyzed in terms of different DC-link voltage, switching frequency, and filter inductance values.
References
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Journal ArticleDOI
A review of active filters for power quality improvement
TL;DR: This paper presents a comprehensive review of active filter configurations, control strategies, selection of components, other related economic and technical considerations, and their selection for specific applications.
Journal ArticleDOI
New trends in active filters for power conditioning
TL;DR: In this article, the authors present the present status of active filters based on state-of-the-art power electronics technology, and their future prospects and directions toward the 21st Century, including the personal views and expectations of the author.
Journal ArticleDOI
Reliability of Capacitors for DC-Link Applications in Power Electronic Converters—An Overview
Huai Wang,Frede Blaabjerg +1 more
TL;DR: This review serves to provide a clear picture of the state-of-the-art research in this area and to identify the corresponding challenges and future research directions for capacitors and their dc-link applications.
Journal ArticleDOI
Control Strategy of Active Power Filters Using Multiple Voltage-Source PWM Converters
TL;DR: In this article, an active power filter with quadruple voltage-source PWM converters was developed, of which the power circuit consists of quadruple-VRS converters.
Journal ArticleDOI
Failure prediction of electrolytic capacitors during operation of a switchmode power supply
TL;DR: In this paper, a new method to set a predictive maintenance is presented and tested on two types of converters, i.e., sound electrolytic filter capacitors and a reference system including all the converter parameters was built for the converter at its sound state, and the lifetime of these capacitors was computed.
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