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AC power

About: AC power is a(n) research topic. Over the lifetime, 80943 publication(s) have been published within this topic receiving 880865 citation(s).

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Papers
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Open accessBook
01 Jan 1994-
Abstract: Part I: Characteristics of Modern Power Systems. Introduction to the Power System Stability Problem. Part II: Synchronous Machine Theory and Modelling. Synchronous Machine Parameters. Synchronous Machine Representation in Stability Studies. AC Transmission. Power System Loads. Excitation in Stability Studies. Prime Mover and Energy Supply Systems. High-Voltage Direct-Current Transmission. Control of Active Power and Reactive Power. Part III: Small Signal Stability. Transient Stability. Voltage Stability. Subsynchronous Machine Representation in Stability Studies. AC Transmission. Power System Loads. Excitation in Stability Studies. Prime Mover and Energy Supply Systems, High-Voltage Direct-Current Transmission. Control of Active Power and Reactive Power. Part III: Small Signal Stability. Transient Stability. Voltage Stability. Subsynchronous Oscillations. Mid-Term and Long-Term Stability. Methods of Improving System Stability.

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Topics: Power factor (61%), Electric power system (60%), AC power (59%) ...read more

13,462 Citations


Journal ArticleDOI: 10.1109/TIE.2010.2066534
01 Nov 2009-
Abstract: DC and AC Microgrids are key elements to integrate renewable and distributed energy resources as well as distributed energy storage systems. In the last years, efforts toward the standardization of these Microgrids have been made. In this sense, this paper present the hierarchical control derived from ISA-95 and electrical dispatching standards to endow smartness and flexibility to microgrids. The hierarchical control proposed consist of three levels: i) the primary control is based on the droop method, including an output impedance virtual loop; ii) the secondary control allows restoring the deviations produced by the primary control; and iii) the tertiary control manage the power flow between the microgrid and the external electrical distribution system. Results from a hierarchical-controlled microgrid are provided to show the feasibility of the proposed approach.

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Topics: Microgrid (60%), Voltage droop (54%), AC power (52%) ...read more

3,466 Citations


Journal ArticleDOI: 10.1109/TIA.1984.4504460
Abstract: The conventional reactive power in single-phase or three- phase circuits has been defined on the basis of the average value concept for sinusoidal voltage and current waveforms in steady states. The instantaneous reactive power in three-phase circuits is defined on the basis of the instantaneous value concept for arbitrary voltage and current waveforms, including transient states. A new instantaneous reactive power compensator comprising switching devices is proposed which requires practically no energy storage components.

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Topics: Volt-ampere reactive (62%), AC power (62%), Power factor (62%) ...read more

3,182 Citations


Journal ArticleDOI: 10.1049/IP-EPA:19960288
Ruben Pena1, Jon Clare1, Greg Asher1Institutions (1)
01 May 1996-
Abstract: The paper describes the engineering and design of a doubly fed induction generator (DFIG), using back-to-back PWM voltage-source converters in the rotor circuit. A vector-control scheme for the supply-side PWM converter results in independent control of active and reactive power drawn the supply, while ensuring sinusoidal supply currents. Vector control of the rotor-connected converter provides for wide speed-range operation; the vector scheme is embedded in control loops which enable optimal speed tracking for maximum energy capture from the wind. An experimental rig, which represents a 7.5 kW variable speed wind-energy generation system is described, and experimental results are given that illustrate the excellent performance characteristics of the system. The paper considers a grid-connected system; a further paper will describe a stand-alone system.

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Topics: Electric generator (57%), Vector control (56%), AC power (54%) ...read more

2,533 Citations


Journal ArticleDOI: 10.1109/41.793345
Abstract: Active filtering of electric power has now become a mature technology for harmonic and reactive power compensation in two-wire (single phase), three-wire (three phase without neutral), and four-wire (three phase with neutral) AC power networks with nonlinear loads. This paper presents a comprehensive review of active filter (AF) configurations, control strategies, selection of components, other related economic and technical considerations, and their selection for specific applications. It is aimed at providing a broad perspective on the status of AF technology to researchers and application engineers dealing with power quality issues. A list of more than 200 research publications on the subject is also appended for a quick reference.

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Topics: AC power (58%), Electric power (54%), Active filter (53%) ...read more

2,179 Citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2022104
20212,986
20204,364
20195,190
20185,525
20175,248

Top Attributes

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Topic's top 5 most impactful authors

Bhim Singh

606 papers, 12.3K citations

Frede Blaabjerg

203 papers, 13.7K citations

Josep M. Guerrero

200 papers, 17.6K citations

Kamal Al-Haddad

177 papers, 6.4K citations

Zhe Chen

97 papers, 3.3K citations

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