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Power system reconfiguration and loss minimization for a distribution systems using “Catfish PSO” algorithm

K Sathish KUMAR,S NAVEEN

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 434-442 doi: 10.1007/s11708-014-0313-y

Abstract: important ways to save electrical energy in the distribution system is network reconfiguration for lossin such a way that the radial structure of networks is maintained, all of the loads are energized, powerloss is reduced, power quality is enhanced, and system security is increased.reconfiguration (DFR) problem for a 33-bus and a 16-bus sample network, which effectively ensures the lossminimization.

Keywords： distribution system reconfiguration (DFR)     power loss reduction     catfish particle swarm optimization (catfish    

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Constriction factor based particle swarm optimization for analyzing tuned reactive power dispatch

Syamasree BISWAS(RAHA), Kamal Krishna MANDAL, Niladri CHAKRABORTY

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 174-181 doi: 10.1007/s11708-013-0246-x

Abstract: The reactive power dispatch (RPD) problem is a very critical optimization problem of power system whichminimizes the real power loss of the transmission system.In connection with the RPD problem, solving reactive power is compensated by incorporating shunt capacitors

Keywords： real power loss minimization     voltage stability     constriction factor     particle swarm optimization (PSO)    

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Optimization of cold-end system of thermal power plants based on entropy generation minimization

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 956-972 doi: 10.1007/s11708-021-0785-5

Abstract: Cold-end systems are heat sinks of thermal power cycles, which have an essential effect on the overallperformance of thermal power plants.To enhance the efficiency of thermal power plants, multi-pressure condensers have been applied in somelarge-capacity thermal power plants.

Keywords： cold-end system     entropy generation minimization     optimization     economic analysis     genetic algorithm    

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Power fluctuation and power loss of wind turbines due to wind shear and tower shadow

Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 321-332 doi: 10.1007/s11465-017-0434-1

Abstract: This study investigates the effects of wind shear and tower shadow on power output in terms of powerfluctuation and power loss to estimate the capacity and quality of the power generated by a wind turbinePower fluctuation and power loss due to wind shear and tower shadow are analyzed by performing theoreticalResults indicate that power fluctuation is mainly caused by tower shadow, whereas power loss is primarilyUnder steady wind conditions, power loss can be divided into wind farm loss and rotor loss.

Keywords： wind turbine     wind shear     tower shadow     power fluctuation     power loss    

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Optimal operation of energy at hydrothermal power plants by simultaneous minimization of pollution and

Homayoun EBRAHIMIAN,Bahman TAHERI,Nasser YOUSEFI

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 426-432 doi: 10.1007/s11708-015-0376-4

Abstract: The aim of this paper is simultaneous minimization of hydrothermal units to reach the best solution byfunction consisting of economic dispatch (ED) considering the valve-point effect and pollution function in powerThese constraints include the maximum and minimum output power of units, the constraints caused by the

Keywords： practical constraints of units     pollution function     inlet steam valve     up-ramp rate of units     improved ABC algorithm    

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Comparison of optimal capacitor placement methods in radial distribution system with load growth and ZIP load model

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 197-213 doi: 10.1007/s11708-013-0249-7

Abstract: In this paper, a combined power loss sensitivity (PLS) index-based approach is proposed to determinethe optimal location of the capacitors in the radial distribution system (RDS) based on the real andreactive combined loss sensitivity index, as capacitor placement not only reduces real power loss withvoltage profile improvement but also reduces reactive power loss due to the reactive power compensationThe results have been obtained with the existing methods of power loss index (PLI) and index vector (

Keywords： load growth     load models     reactive power compensation     radial distribution system     power loss index (PLI)     power loss sensitivity (PLS)     index vector (IV)    

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Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough

Honglun YANG, Qiliang WANG, Jingyu CAO, Gang PEI, Jing LI

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 867-881 doi: 10.1007/s11708-020-0707-y

Abstract: comprehensive thermodynamic and economic model to predict and compare the performance of concentrated solar powerThe simulation results reveal that power plants with novel receivers exhibit a superior thermodynamicIn Phoenix, the optimal operating temperature of the power plants is improved from 500°C to 560°C byFurthermore, the sensitivity analysis of the receiver heat loss, solar absorption, and freeze protectionSolar absorption has a positive contribution to annual electricity productions, whereas heat loss and

Keywords： concentrated solar power     parabolic trough receiver     heat loss     solar energy     annual performance    

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Loss coefficient of nitrogenous non-point source pollution under various precipitation conditions

CHENG Hongguang, HAO Fanghua, REN Xiyan, YANG Shengtian, XIONG Wen, LEI Shaoping

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2,   Pages 230-235 doi: 10.1007/s11783-008-0043-7

Abstract: calibrations of non-point source (NPS) pollution models are performed based on Black River basin historical real-timeThe concept of NPS loss

Keywords： information     concept     non-point     historical real-time     sedimentation    

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Mechanism on minimization of excess sludge in oxic-settling-anaerobic (OSA) process

WANG Jianfang, ZHAO Qingliang, JIN Wenbiao, LIN Jikan

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 36-43 doi: 10.1007/s11783-008-0001-4

Abstract: It has been concluded that multiple causes resulted in the minimization of excess sludge in the OSA system
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Real drive cycles analysis by ordered power methodology applied to fuel consumption, CO

Pol Masclans Abelló, Vicente Medina Iglesias, M. Antonia de los Santos López, Jesús Álvarez-Flórez

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1296-z

Abstract: Abstract • New method named CAbOP is presented based on ordering data according to power. • Three emissionunder CAbOP criteria. • Methodology to collect data and reconstruct lost data in real urban drivingsome available models in literature, and 3) a novel analysis of the results based on delivered wheel powerFinally, a new methodology named Cycle Analysis by Ordered Power (CAbOP) is presented and used to compareThis method consists in the re-ordering of time dependant data, considering the wheel mechanical power

Keywords： Cycle Analysis by Ordered Power (CAbOP)     Micro and macro models     Real drive cycle     NOx/PM10/CO2 emissions     Wheel mechanical power domain     Worldwide Harmonized Light-Duty    

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Real-time simulation platform for photovoltaic system with a boost converter using MPPT algorithm in

Geethanjali PURUSHOTHAMAN, Vimisha VENUGOPALAN, Aleena Mariya VINCENT

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 373-379 doi: 10.1007/s11708-013-0272-8

Abstract: Recently, real-time simulation of renewable energy sources are indispensible for evaluating the performanceof the maximum power point tracking (MPPT) controller, especially in the photovoltaic (PV) system inNowadays, real time PV simulators are obtained by using analog and/or digital components.In this paper, a real-time simulation of a PV system with a boost converter was proposed using only theA MATLAB/Simulink environment was used to develop the real-time PV system with a boost converter into

Keywords： photovoltaic (PV) module     digital signal processor (DSP) controller     power electronic converter     real-time    

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Robust design approach to the minimization of functional performance variations of products and systems

J. ZHANG, H. DU, D. XUE, P. GU

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 379-392 doi: 10.1007/s11465-020-0607-1

Abstract: Functional performance variations of products and systems are often used to measure the qualities of products and systems considering the changes in the design parameter values caused by uncertainties. A robust design approach has been developed in this research to minimize the functional performance variations considering the design parameter uncertainties by identifying the boundaries of the functional performance variations through optimization. In this work, a mathematical model is developed to describe the relationships among functional performance, design configurations and parameters, and design parameter uncertainties. A multi-level optimization model is established to identify: (1) The optimal design configuration, (2) the optimal values of design parameters, and (3) the boundaries of functional performance variations. Sensitivity analysis considering the impact of parameter uncertainties on functional performance variation boundaries has also been conducted. A case study on the design of a truss system has been conducted. Case study results show that the sensitivities of functional performance variation boundaries to the design parameter uncertainties can be reduced significantly using the new robust design approach.

Keywords： product design     robust design     design optimization     uncertainties    

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Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices

Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 18-34 doi: 10.1007/s11705-020-1939-4

Abstract: applications like high-voltage direct current transmission projects, distributed energy systems, high-powerLow electric loss is a critical prerequisite for capacitors for electric grids, while high-temperatureRequirements for polymer-based dielectrics in various power electronic equipment are emphasized, including

Keywords： dielectric capacitors     polymer-based dielectrics     energy density     dielectric loss     working temperature     frequency    

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Panoramic variation analysis of a family with neurodevelopmental disorders caused by biallelic loss-of-function

Frontiers of Medicine doi: 10.1007/s11684-023-1006-x

Abstract: Notably, the biallelic loss-of-function variants of TMEM141 were responsible for syndromic ID.

Keywords： neurodevelopmental disorder     autosomal recessive intellectual disability     consanguinity     spastic paraplegia     hearing loss    

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Real prospects for the development of power technologies based on renewable energy sources in Poland

Sławomir DYKAS, Artur SZYMAŃSKI, Xiaoshu CAI

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 168-174 doi: 10.1007/s11708-017-0474-6

Abstract: In Poland more than 40% of the power units have been operating for over 40 years now and more than 10%An analysis of the energy market shows that every year a new power plant should be built with a capacityIn this paper the prospects for the development of power technologies based on renewable energy sources

Keywords： renewable energy sources     energy sector     energy mix     Poland    

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Title Author Date Type Operation

Power system reconfiguration and loss minimization for a distribution systems using “Catfish PSO” algorithm

K Sathish KUMAR,S NAVEEN

Journal Article

Constriction factor based particle swarm optimization for analyzing tuned reactive power dispatch

Syamasree BISWAS(RAHA), Kamal Krishna MANDAL, Niladri CHAKRABORTY

Journal Article

Optimization of cold-end system of thermal power plants based on entropy generation minimization

Journal Article

Power fluctuation and power loss of wind turbines due to wind shear and tower shadow

Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU

Journal Article

Optimal operation of energy at hydrothermal power plants by simultaneous minimization of pollution and

Homayoun EBRAHIMIAN,Bahman TAHERI,Nasser YOUSEFI

Journal Article

Comparison of optimal capacitor placement methods in radial distribution system with load growth and ZIP load model

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Journal Article

Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough

Honglun YANG, Qiliang WANG, Jingyu CAO, Gang PEI, Jing LI

Journal Article

Loss coefficient of nitrogenous non-point source pollution under various precipitation conditions

CHENG Hongguang, HAO Fanghua, REN Xiyan, YANG Shengtian, XIONG Wen, LEI Shaoping

Journal Article

Mechanism on minimization of excess sludge in oxic-settling-anaerobic (OSA) process

WANG Jianfang, ZHAO Qingliang, JIN Wenbiao, LIN Jikan

Journal Article

Real drive cycles analysis by ordered power methodology applied to fuel consumption, CO

Pol Masclans Abelló, Vicente Medina Iglesias, M. Antonia de los Santos López, Jesús Álvarez-Flórez

Journal Article

Real-time simulation platform for photovoltaic system with a boost converter using MPPT algorithm in

Geethanjali PURUSHOTHAMAN, Vimisha VENUGOPALAN, Aleena Mariya VINCENT

Journal Article

Robust design approach to the minimization of functional performance variations of products and systems

J. ZHANG, H. DU, D. XUE, P. GU

Journal Article

Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices

Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng

Journal Article

Panoramic variation analysis of a family with neurodevelopmental disorders caused by biallelic loss-of-function

Journal Article

Real prospects for the development of power technologies based on renewable energy sources in Poland

Sławomir DYKAS, Artur SZYMAŃSKI, Xiaoshu CAI

Journal Article