Open Access
Load compensating DSTATCOM in weak AC systems
Arindam Ghosh,Gerard Ledwich +1 more
TLDR
In this article, a distribution static compensator (DSTATCOM) is used to compensate for the distortions in source current and voltage at the point of common coupling, where the DSTATCOM is connected with a filter capacitor that allows the high frequency component of the current to pass.Abstract:
The paper discusses load compensation using a distribution static compensator (DSTATCOM). It is assumed that the DSTATCOM is associated with a load that is remote from the supply. It is shown that the operation of a DSTATCOM assuming that it is connected to a stiff source in such situations will result in distortions in source current and voltage at the point of common coupling. To avoid this, the DSTATCOM is connected in parallel with a filter capacitor that allows the high frequency component of the current to pass. However, this generates control issues in tracking, as standard controls such as a hysteresis control are not suitable in these circumstances. This paper proposes a new switching control scheme and demonstrates its suitability for this problem. It also proposes a scheme in which the fundamental sequence components of a three-phase signal can be computed from its samples. The overall performance of the proposed scheme is verified using digital computer simulation studies.read more
Citations
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Journal ArticleDOI
A Voltage-Controlled DSTATCOM for Power-Quality Improvement
Chandan Kumar,Mahesh K. Mishra +1 more
TL;DR: In this paper, a new algorithm to generate reference voltage for a distribution static compensator (DSTATCOM) operating in voltage-control mode is proposed, where the reference voltage is arbitrarily taken as 1.0 p.u.
Journal ArticleDOI
Mitigation of power quality problems using distribution static synchronous compensator: a comprehensive review
TL;DR: In this article, a comprehensive review of the various DSTATCOM configurations for single-phase and three-phase (three or four-wire) systems and control strategies for the compensation of different PQ problems in distribution systems are performed.
Journal ArticleDOI
Topological aspects of power quality improvement techniques: A comprehensive overview
TL;DR: A comprehensive review on the status of topological aspects of techniques used to improve the power quality in distribution network for the researchers, designers and engineers working in this area is provided.
Journal ArticleDOI
A DSTATCOM Topology With Reduced DC-Link Voltage Rating for Load Compensation With Nonstiff Source
TL;DR: In this paper, a new topology for distribution static compensator (DSTATCOM) applications with nonstiff source is proposed, which enables DSTATCOM to have a reduced dc-link voltage without compromising the compensation capability.
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.
Book
Electrical Power Systems Quality
TL;DR: In this paper, the authors present a power quality evaluation procedure for the purpose of measuring the power quality of a power supply. But, they do not define the specific classes of power quality problems.
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
A new approach to load balancing and power factor correction in power distribution system
Arindam Ghosh,Avinash Joshi +1 more
TL;DR: In this paper, a new approach for generating reference currents for an active filter and/or a static compensator is presented, where the compensators are connected to a load that may either be connected in star or in delta.
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A Flexible DSTATCOM Operating in Voltage or Current Control Mode
Gerard Ledwich,Arindam Ghosh +1 more