Results 281 to 290 of about 12,187,390 (343)
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IEEE Transactions on Power Systems, 2020
This letter presents an analytical closed-form expression that quantifies the contributions of nodal active- and reactive-power injections to total loss in a power system operating at sinusoidal steady state. We term this as the loss divider , since it is derived by leveraging the ubiquitous current divider law.
Abdullah Al-Digs, Yu Christine Chen
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This letter presents an analytical closed-form expression that quantifies the contributions of nodal active- and reactive-power injections to total loss in a power system operating at sinusoidal steady state. We term this as the loss divider , since it is derived by leveraging the ubiquitous current divider law.
Abdullah Al-Digs, Yu Christine Chen
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Electric power systems research, 2019
This paper presents a new algorithm to solve the problem of reconfiguration of distribution networks using Improved Selective Binary Particle Swarm Optimization (IS-BPSO). The proposed method presents a new sigmoid function capable of promoting a control
Raoni de A. Pegado +3 more
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This paper presents a new algorithm to solve the problem of reconfiguration of distribution networks using Improved Selective Binary Particle Swarm Optimization (IS-BPSO). The proposed method presents a new sigmoid function capable of promoting a control
Raoni de A. Pegado +3 more
semanticscholar +1 more source
Development of an analytical model to estimate the churning power losses of a spiral bevel gear
, 2020A quasi-analytical model based on fluid mechanics is established to estimate the no-load power losses of a spiral bevel gear with splash lubrication. The no-load losses are defined as the sum of churning power loses and windage power losses.
Yu Dai, Xiang Zhu, B. Ouyang
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American Sociological Review, 1973
Berle and Means show that modern organizations separate the rights inherent in property or other resources into benefit rights and usage rights. To increase benefits, natural persons in society give over usage rights, that is direct control over actions, to corporate bodies through investments or membership. In so doing, they have gained these benefits
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Berle and Means show that modern organizations separate the rights inherent in property or other resources into benefit rights and usage rights. To increase benefits, natural persons in society give over usage rights, that is direct control over actions, to corporate bodies through investments or membership. In so doing, they have gained these benefits
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Power Losses in Electrolytic Condensers
Transactions of the American Institute of Electrical Engineers, 1932Electrolytic condensers on a-c. circuits have higher power losses than would be expected from the leakage currents and electrolyte resistances. Likewise, losses change with the applied voltage, with temperature of the cell, with the frequency of the applied voltage, and with external circuit conditions governing current wave shape in such ways that it ...
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IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019
In this paper, a new submultilevel converter (SMC) is introduced first. Then, the cascaded structure based on the series connection of proposed SMCs is presented.
J. S. Mohamed Ali +2 more
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In this paper, a new submultilevel converter (SMC) is introduced first. Then, the cascaded structure based on the series connection of proposed SMCs is presented.
J. S. Mohamed Ali +2 more
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Load Loss Coefficient and Power Loss Tracing in Power Systems
2017A definition of Load Loss Coefficient (LLC) is given in this study along with the power loss tracing algorithm. As LLC indicates the effect of load on power transmission loss, its calculation is performed based on the Bialek’s power tracing method, where gross and net flows are being considered, to determine the power loss in a system during power ...
Moonsung Bae, Byongjun Lee
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International Journal of Mechanical Sciences, 1970
Abstract This paper examines power-producing cycles and evaluates losses incurred in such a way that the analysis applies to cycles as a whole or to individual units involved. This allows the results to be applied to any process where work and/or heat transfer is involved.
John H. Neilson, Robert A. Crawford
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Abstract This paper examines power-producing cycles and evaluates losses incurred in such a way that the analysis applies to cycles as a whole or to individual units involved. This allows the results to be applied to any process where work and/or heat transfer is involved.
John H. Neilson, Robert A. Crawford
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Evaluation of mechanical and electric power losses in a typical piezoelectric ultrasonic transducer
Sensors and Actuators A: Physical, 2019In this paper, contributions of the mechanical and electric power losses have been studied in a typical piezoelectric ultrasonic transducer under free conditions.
M. Karafi, Farshad Khorasani
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IET electric power applications, 2019
Among the conventional loss minimisation algorithms (LMAs), the model-based approaches have the advantages of fast response and high accuracy. Here, a novel online model-based power losses minimisation approach is presented for indirect field-oriented ...
H. A. Zarchi +2 more
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Among the conventional loss minimisation algorithms (LMAs), the model-based approaches have the advantages of fast response and high accuracy. Here, a novel online model-based power losses minimisation approach is presented for indirect field-oriented ...
H. A. Zarchi +2 more
semanticscholar +1 more source