Journal ArticleDOI
Introducing custom power
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TLDR
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.Abstract:
Changes in customers' needs require improvements in the reliability and quality of the electricity supply This paper describes how the concept of custom power is now becoming familiar The term 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 >read more
Citations
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Proceedings ArticleDOI
Stationary applications of energy storage technologies for transit systems
TL;DR: In this article, three different demonstrations of energy storage technologies for transit systems were reviewed and discussed, including a sodium sulphide battery system in Long Island, a flywheel system for the London Underground, and a capacitor system for Madrid de Metro.
Proceedings ArticleDOI
Fault current interruption by the dynamic voltage restorer
TL;DR: In this article, an auxiliary control strategy for downstream fault current interruption in a radial distribution line by means of a dynamic voltage restorer (DVR) is introduced and evaluated, and the results of simulation studies performed in the PSCAD/EMTDC software environment indicate that the proposed control scheme can limit the fault current to less than the nominal load current and restore the point of common coupling voltage within 10 ms.
Journal ArticleDOI
A pulse width modulated power line conditioner for sensitive load centers
TL;DR: In this article, the authors present a control strategy for the application of the PWM power converter for power conditioning, along with simulation results verifying the performance of the power conditioner under supply disturbances such as voltage sags, swells and other disturbances.
Journal ArticleDOI
Real coded GA optimized fuzzy logic controlled PEMFC based Dynamic Voltage Restorer for reparation of voltage disturbances in distribution system
C.K. Sundarabalan,K. Selvi +1 more
TL;DR: In this article, the Dynamic Voltage Restorer (DVR) is modelled to protect sensitive load from source side voltage disturbances under nonlinear load conditions, and the real coded GA optimized fuzzy logic controller is used to control both d and q components of the voltage.
Proceedings ArticleDOI
Distribution system voltage regulation under fault conditions using static series regulators
K. Haddad,Geza Joos +1 more
Abstract: Power quality and availability are becoming important issues for critical and sensitive loads. Many of the disturbances are caused by faults on the utility distribution system in one or more phases, resulting in voltage dips and sags. This paper presents a viable alternative to UPS solutions to three phase load support in the form of practical series compensator structures. The compensators consist of transformer coupled voltage source inverters fed from a single diode rectifier connected to the faulted AC supply. The balancing and regulating algorithms are developed and applied to partial and total single phase to three phase type of faults. The compensation capability of the proposed schemes are derived. Practical issues, such as design, converter rating and the relative merits of each topology are considered. The paper also provides experimental results for a 2 kVA prototype power conditioner.
References
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Journal ArticleDOI
Flexible AC transmission
TL;DR: The flexible AC transmission system (FACTS) as mentioned in this paper is designed to overcome the limitations of the present mechanically controlled AC power transmission systems, uses reliable, high-speed power electronic controllers.
Proceedings ArticleDOI
Voltage sags in industrial systems
TL;DR: In this article, a description of the causes of voltage sags in industrial plants, their impact on equipment operation, and possible solutions is given, focusing on system faults as the major cause of voltage sag.
Journal ArticleDOI
High-power electronics
TL;DR: A new generation of silicon switches is presented which enables power grids to meet the needs of utility customers with high efficiency and reliability and will be able to deliver more power of better quality while reducing transmission losses and thus the amount of energy they must generate.
Journal ArticleDOI
Storing power for critical loads
C. DeWinkel,J.D. Lamoree +1 more
TL;DR: In this paper, the operation of superconducting magnetic energy storage (SMES) is explained, and the advantages of SMES for these applications are examined, and some field test results are discussed.
Proceedings ArticleDOI
Solid-state 13-kV distribution class circuit breaker: planning, development and demonstration
TL;DR: In this article, the authors describe the planning, development and demonstration of solid-state 13 kV distribution class circuit breakers, which can instantaneously transfer sensitive loads from a normal supply that experiences a disturbance to an alternate supply that is unaffected by the disturbance.