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Reactive power and power factor
Electrical Engineering, 1933GENERAL definitions exist for potential, current, and active and reactive power, that are independent of wave form and of circuit conditions. In order to use these quantities in circuit analysis when there are harmonics present, it is necessary to know their individual harmonic components.
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Fast Distributed Reactive Power Control for Voltage Regulation in Distribution Networks
IEEE Transactions on Power Systems, 2019This letter considers the problem of voltage regulation of distribution networks by optimally setting the reactive power of distributed energy resources.
Zhiyuan Tang, D. Hill, Tao Liu
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Power, reactive volt-amperes, power factor
Electrical Engineering, 1933The relation between power, reactive volt-amperes, and power factor is discussed for sinusoidal electromotive forces and currents. Reactive volt-amperes is defined as the flow of stored energy into the circuit and is deduced from the stored energy cycle.
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Reactive Power Cost From PV Inverters Considering Inverter Lifetime Assessment
IEEE Transactions on Sustainable Energy, 2019Photovoltaic (PV) system inverters have been frequently utilized for reactive power support in the literature. Although the benefits of PV reactive power for the grid have been quantified, the costs incurred by the PV owner have largely been ignored ...
Oktoviano Gandhi +5 more
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Transactions of the American Institute of Electrical Engineers, 1933
In this paper the single-phase and polyphase definitions of reactive power are considered. The single-phase definition is unsatisfactory when the current and voltage wave forms are complex. The polyphase definition is the better but requires the independent recognition of the effects of distortion and, in the case of four or more wires, mesh ...
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In this paper the single-phase and polyphase definitions of reactive power are considered. The single-phase definition is unsatisfactory when the current and voltage wave forms are complex. The polyphase definition is the better but requires the independent recognition of the effects of distortion and, in the case of four or more wires, mesh ...
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IEEE transactions on power electronics, 2019
Distributed power generators in islanded microgrid usually adopt droop control strategy or virtual synchronous generator (VSG) control strategy to simulate Q–U droop characteristic of synchronous generators for voltage support ability enhancement and ...
Haizhen Xu +5 more
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Distributed power generators in islanded microgrid usually adopt droop control strategy or virtual synchronous generator (VSG) control strategy to simulate Q–U droop characteristic of synchronous generators for voltage support ability enhancement and ...
Haizhen Xu +5 more
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IEEE Transactions on Power Systems, 2019
To solve the coordinated dispatch and time-space coupling problem in the distribution network with distributed generations (DGs), a novel two-stage (Heuristic search and Variable correction) dynamic reactive power dispatch strategy is proposed in this ...
Lijuan Chen, Z. Deng, Xiaohui Xu
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To solve the coordinated dispatch and time-space coupling problem in the distribution network with distributed generations (DGs), a novel two-stage (Heuristic search and Variable correction) dynamic reactive power dispatch strategy is proposed in this ...
Lijuan Chen, Z. Deng, Xiaohui Xu
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Robust Coordinated Optimization of Active and Reactive Power in Active Distribution Systems
IEEE Transactions on Smart Grid, 2018Active power dispatch and reactive power optimization problems are usually handled separately in active distribution systems, aiming at minimizing the total generation cost or transmission losses.
Hongjun Gao, Junyong Liu, Lingfeng Wang
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2012
Every optimization problem employed to study electric power systems consists of an objective function and a group of constraints to be observed by this function that concurrently define the problem itself. The main constraints associated with the problem of reactive power planning are related to load flow equations.
Hortensia Amaris +2 more
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Every optimization problem employed to study electric power systems consists of an objective function and a group of constraints to be observed by this function that concurrently define the problem itself. The main constraints associated with the problem of reactive power planning are related to load flow equations.
Hortensia Amaris +2 more
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IEEE transactions on power electronics, 2018
This paper deals with an optimized three-level modulated phase shift control using particle swarm optimization (PSO) strategy based on the unified phasor analysis with an aim to improve the efficiency of the bidirectional dual active bridge (DAB ...
Haochen Shi, H. Wen, Yihua Hu, Lin Jiang
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This paper deals with an optimized three-level modulated phase shift control using particle swarm optimization (PSO) strategy based on the unified phasor analysis with an aim to improve the efficiency of the bidirectional dual active bridge (DAB ...
Haochen Shi, H. Wen, Yihua Hu, Lin Jiang
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