Proceedings ArticleDOI
Universal custom power conditioner (UCPC) in distribution networks
Zhan Changjiang,Wong Manchung,Han Yu,Han Yingduo,Zhao Liang-Bing +4 more
- Vol. 2, pp 1067-1072
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TLDR
In this article, a general powerful circuit of a universal custom power conditioner (UCPC), which is used to improve power reliability and quality applied to distribution networks, is presented in detail.Abstract:Â
In this paper, a general powerful circuit of a universal custom power conditioner (UCPC), which is used to improve power reliability and quality applied to distribution networks, is presented in detail. The UCPC is based on series and shunt tri-level PWM converters with a battery energy storage system (BESS) for multi-function operations such as harmonic elimination, reactive power control, voltage sags compensation and uninterruptible power supply (UPS). The basic algorithm of system is deadbeat control with a repetitive compensation strategy based on the voltage space vector PWM method. Some simulation results are use to verify that UCPC can synthetically fulfill different compensation functions.read more
Citations
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Proceedings ArticleDOI
Modeling the combination of UPQC and photovoltaic arrays with Multi-Input Single-Output DC-DC converter
TL;DR: In this article, an analysis results of a cooperation of the Unified Power Quality Conditioner (UPQC) with the photovoltaic system are presented, which can improve the power quality at the Point of Common Coupling (PCC) on power distribution systems.
Proceedings ArticleDOI
Effect of new deregulation policy on power quality monitoring and mitigation techniques
TL;DR: In this article, the effect of power system deregulation on the power quality problems is investigated, identifying the high priority research areas related to electric power quality in deregulated power systems and investigating the advances made in this area over the last decade.
Proceedings ArticleDOI
Power Flow Control and Power Quality Improvement of Wind Turbine Using Universal Custom Power Conditioner
TL;DR: In this article, power flow and power quality aspects of wind turbine which is connected to utility at distribution level are presented in order to power quality improvement and power flow control, a well-known structure, Universal Custom Power Conditioner (UCPC), is used.
Proceedings ArticleDOI
An Improved Repetitive Control for Active Power Filters with Three-Level NPC Inverter
TL;DR: In this paper, an improved repetitive scheme to control the shape of the current waveform is presented. But the design process of each part in the repetitive controller is presented, and the revised filter, the phase compensator and the repetitive gain is also given.
Proceedings ArticleDOI
An novel deadbeat control method for cctive power filters with three-level NPC inverter
TL;DR: In this paper, a mathematical model in d-q coordinates is presented for 3-phase 3-wire active power filters (APF) and a dead-beat control scheme is obtained by using the state equations.
References
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Journal ArticleDOI
The unified power quality conditioner: the integration of series- and shunt-active filters
Hideaki Fujita,Hirofumi Akagi +1 more
TL;DR: In this paper, a unified power quality conditioner (UPQC) is proposed to compensate for voltage flicker/imbalance, reactive power, negative-sequence current and harmonics.
Journal ArticleDOI
Unified power-flow control concept for flexible AC transmission systems
TL;DR: In this article, the authors outline the technical and economic factors which characterise the uniform, all solid-state power-flow controller approach for real-time controlled, flexible AC transmission systems.
Journal ArticleDOI
Introducing custom power
TL;DR: The concept of custom power is now becoming familiar as mentioned in this paper and it describes the value-added power that electric utilities and other service providers will offer their customers in the future The improved level of reliability of this power, in terms of reduced interruptions and less variation, will stem from an integrated solution to present problems, of which a prominent feature will be the application of power electronic controllers to utility distribution systems and/or at the supply end of many industrial and commercial customers and industrial parks.
Journal ArticleDOI
Application issues of active power filters
TL;DR: In this article, the authors have characterized common nonlinear loads have been characterized into two types of harmonic sources, current-source type of harmonic source and voltage source type of source, and discussed the compensation characteristics of both parallel active filters and series active filters.
Journal ArticleDOI
An universal active power line conditioner
Abstract: The power circuit of a general active power line conditioner (APLC) is based on series and shunt power converters that share a single DC link. In the present paper, a generic control concept for these series and shunt converters is proposed. It is based on the instantaneous real and imaginary power theory. In fact, the resulting equipment deals with the custom power and FACTS concepts. This equipment incorporates not only the compensation functions at the fundamental frequency like a unified power flow controller (UPFC), but also provides active harmonic mitigation capabilities. For these reasons, the compensator proposed here is called the universal active power line conditioner (UPLC). Simulation and experimental results are presented to confirm that the new approach has better performance than those obtained by controllers based on traditional concepts of active and reactive power.
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