Control method for a combined active filter system employing a current source converter and a high pass filter
S. Fukuda,T. Endoh +1 more
TLDR
In this article, a control method with a combined filter system which senses load current, source current, and line voltage to create reference signals for an active filter is described, and a small setup controlled by a DSP is built, and the validity of the proposed method is demonstrated by experimental results.Abstract:
This paper describes a control method with a combined filter system which senses load current, source current, and line voltage to create reference signals for an active filter. The transfer function of the active filter is identified and is used for the control system design. It is shown that the source current feedback is most effective in suppressing the harmonic-enlarging effects due to parallel resonance and the harmonic current generated by source harmonic voltages. A small setup controlled by a DSP was built, and the validity of the proposed method was demonstrated by experimental results. >read more
Citations
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Journal ArticleDOI
Active power filters: a review
TL;DR: There has been considerable interest in the development and applications of active filters because of the increasing concern over power quality, at both distribution and consumer levels, and the need to control reactive power and voltage stability at transmission levels as mentioned in this paper.
Journal ArticleDOI
Control and performance of a fully-digital-controlled shunt active filter for installation on a power distribution system
Abstract: This paper presents a fully-digital-controlled shunt active filter for harmonic termination of a power distribution system. The main purpose of the active filter based on voltage detection is not to compensate for current harmonics but to damp out harmonic propagation caused by line inductors and shunt capacitors for power factor correction. However, time and phase delays inherent in digital controllers might lead to unsatisfactory harmonic-damping performance although digital controllers are preferable to analog controllers. This paper deals with the design and implementation of a digital controller for a shunt active filter based on voltage detection. Experimental results obtained from a laboratory system developed in this paper verify the viability and effectiveness of the fully-digital-controlled active filter.
Journal ArticleDOI
A series active power filter adopting hybrid control approach
TL;DR: In this article, a hybrid control approach for the series active power filter (APF) is proposed, where the reference signal of the compensation voltage needed by the series APF is obtained by detecting both source current and load voltage.
Journal ArticleDOI
Control of series active power filters compensating for source voltage unbalance and current harmonics
TL;DR: A novel control scheme compensating for source voltage unbalance and current harmonics in series-type active power filter systems combined with shunt passive filters is proposed, which focuses on reducing the delay time effect required to generate the reference voltage.
Harmonics mitigation using active power filter: a technological review
TL;DR: In this paper, the development of active power filter (APF) technologies that are commonly used to mitigate harmonics in utility power lines is reviewed, and the operation of common APF topologies, namely the shunt, series and hybrid APFs are described in detail.
References
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Journal ArticleDOI
Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components
TL;DR: In this paper, a new instantaneous reactive power compensator comprising switching devices is proposed, which requires practically no energy storage components, and is based on the instantaneous value concept for arbitrary voltage and current waveforms.
Proceedings ArticleDOI
Design and characteristics of active power filter using current source converter
S. Fukuda,M. Yamaji +1 more
TL;DR: In this article, a current-source active power filter that consists of a current source active filter (AF) and second-order high-pass filters (HPFs) is described.
Journal ArticleDOI
Compensation characteristics and dynamics of the active filter for superconducting magnet energy storage
TL;DR: In this paper, the authors proposed a new control scheme in which both of load current and power source current are detected and they are optimally compensated using appropriate weighting factors, and good and stable compensation characteristics of the proposed active filter are demonstrated by experiments and simulations.