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A novel method to investigate voltage stability of IEEE-14 bus wind integrated system using PSAT

Satish KUMAR,Ashwani KUMAR,N. K. SHARMA

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 410-418 doi: 10.1007/s11708-016-0440-8

Abstract: conventional grid system increases, various bus voltages of the system tend to decrease, causing serious voltagedrop or voltage instability within the system.identify these weak buses, so that some corrective action may be taken to compensate for this drop in voltage

Keywords： voltage stability     line indices     power system analysis tool box (PSAT)     wind system     line loading     power flow    

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Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 386-393 doi: 10.1007/s11708-014-0323-9

Abstract: Accurate modeling and parameters of high voltage (HV) grid are critical for stability research of systemThe results of this paper can provide reference for the stability research of HV power grid.

Keywords： high voltage (HV) grid     frequency stability parameter identification     primary frequency regulation (PFR    

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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 which minimizes the real power loss of the transmission system. While solving the said problem, generator bus voltages and transformer tap settings are kept within a stable operating limit. In connection with the RPD problem, solving reactive power is compensated by incorporating shunt capacitors. The particle swarm optimization (PSO) technique is a swarm intelligence based fast working optimization method which is chosen in this paper as an optimization tool. Additionally, the constriction factor is included with the conventional PSO technique to accelerate the convergence property of the applied optimization tool. In this paper, the RPD problem is solved in the case of the two higher bus systems, i.e., the IEEE 57-bus system and the IEEE 118-bus system. Furthermore, the result of the present paper is compared with a few optimization technique based results to substantiate the effectiveness of the proposed study.

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

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Theory and Method of Power System Integrated Security Region Irrelevant to Operation States: An Introduction Feature Article

Yixin Yu, Yanli Liu, Chao Qin, Tiankai Yang

Engineering 2020, Volume 6, Issue 7,   Pages 754-777 doi: 10.1016/j.eng.2019.11.016

Abstract:

How to comprehensively consider the power flow constraints and various stability constraints in amainly defined in the power injection space, and includes SRs to ensure steady-state security, transient stability, static voltage stability, and small disturbance stability.

Keywords： Security region     Composition     Power flow security     Static voltage stability     Small-disturbance stability     Transient stability     Dynamics nature     Topological and geometric characteristics Hyperplane    

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Recent advances toward high voltage, EC-free electrolytes for graphite-based Li-ion battery

Tong Zhang, Elie Paillard

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 577-591 doi: 10.1007/s11705-018-1758-z

Abstract: improving their performances requires, in many cases, the use of cathodes operating above the anodic stabilityIn the last years, many alternative electrolytes, aiming at allowing high voltage battery operation,Thus, we review here the high voltage, EC-free alternative electrolytes, focusing on those allowing the

Keywords： lithium-ion     electrolyte     solid electrolyte interphase     additives     high voltage     graphite    

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Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 943-955 doi: 10.1007/s11708-021-0793-5

Abstract: This paper investigates and discusses the interaction stability issues of a wind farm with weak gridthe wind turbines (WTs) are controlled by a new type of converter control strategy referred to as the voltageHowever, when it is applied to multiple WTs within a wind farm, its weak-grid performance regarding the stabilityBased on this model and the application of a stability margin quantification index, not only the interactionsA crucial finding is that the inertial response of VS control has negative impacts on the stability margin

Keywords： weak grids     voltage source (VS) control     wind turbine (WT)     stabilization control     wind farm     inertial    

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Development and advances in modular multilevel converter based HVDC projects in China

Frontiers of Engineering Management   Pages 183-189 doi: 10.1007/s42524-022-0248-7

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Keywords： high voltage direct current     power converter     power systems     renewable energy     ultra-high voltage    

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nitrobenzene by the nano-structured Cu catalyst prepared by an electrodeposited method via tuning applied voltage

Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 897-904 doi: 10.1007/s11783-015-0782-1

Abstract: morphologies were fabricated on Ti plate using a facile electrodepositon method via tuning the applied voltageThe fabricated nano-structured Cu catalysts also exhibited good stability.

Keywords： nitrobenzene     nano-structured Cu     electro-reduction     voltage-dependent electrodeposition     high selectivity     high stability    

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Cluster voltage control method for “Whole County” distributed photovoltaics based on improved differential

Frontiers in Energy   Pages 782-795 doi: 10.1007/s11708-023-0905-8

Abstract: However, the high penetration rate of DPVs has brought problems such as voltage violation and power qualityTo address the problems, this paper proposes a cluster voltage control method for distributed photovoltaicFirst, it partitions the distribution network into clusters, and different clusters exchange terminal voltageonly greatly improves the operational efficiency of the algorithm but also effectively controls the voltageof the distribution network, and maximizes the consumption capacity of DPVs based on qualified voltage

Keywords： distributed photovoltaics (DPVs)     cluster partitioning     improved differential evolution algorithm     voltage    

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Reasonable Rated Voltage of High and Medium Power Adjustable-Speed Drives for Energy Saving

Ma Xiaoliang

Strategic Study of CAE 2001, Volume 3, Issue 11,   Pages 80-84

Abstract: The rated voltage of most of the motors in the power range is 10 kV because the power supply is 10 kVlot of power electronic devices in series and its cost is high and reliability is poorer than lower voltageto the existence of input transformer of the inverter, it is not necessary to ask for that the rated voltageof the motor and inverter is the same as power supply, i. e. a lower rated voltage can be used for the

Keywords： high and medium power     adjustable-speed drives for energy saving     reasonable rated voltage     low voltageinverters     medium voltage inverters     by-pass    

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power quality conditioner based on a three-level NPC inverter using fuzzy control techniques for all voltage

Salim CHENNAI,M-T BENCHOUIA

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 221-239 doi: 10.1007/s11708-014-0317-7

Abstract: The proposed UPQC is capable of mitigating source current harmonics and compensate all voltage disturbancessuch as voltage sags, swells, unbalances and harmonics.The DC voltage is maintained constant using proportional integral voltage controller.performances of the proposed UPQC system are evaluated in terms of power factor correction, mitigation of voltageor current harmonics and all other voltage disturbances compensation using Matlab-Simulink software

Keywords： inverter     unified power quality conditioner (UPQC)     current harmonics mitigation     fuzzy logic controller     voltage    

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Experimental study of pollution effect on the behavior of high voltage insulators under alternative current

Hani BENGUESMIA, Nassima M’ZIOU, Ahmed BOUBAKEUR

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 213-221 doi: 10.1007/s11708-017-0479-1

Abstract: paper, the impact of the conductivity and the distribution of pollution on the behavior of the high voltagedifferent conductivities for a discontinuous distribution of the pollution on the insulator under an AC voltageFurthermore, the influence of the pollution on the flashover voltage and the leakage current is studied

Keywords： insulator     circular model     artificial pollution     flashover     leakage current     discontinuous pollution     high voltage    

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Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 211-227 doi: 10.1007/s11708-022-0847-3

Abstract: operation of power distribution networks is challenged by the issues of multiple power flow directions and voltageAccordingly, an efficient voltage control strategy is needed to ensure voltage security against ever-changingIn this paper, we propose a novel data-driven voltage profile improvement model, denoted as system-wideand decision-making optimization in sequence, the proposed end-to-end model determines the optimal voltage

Keywords： end-to-end learning     microgrids     voltage profile improvement     generative adversarial network    

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Experimental investigation and comparative study of inter-turn short-circuits and unbalanced voltage

Fatima BABAA, Abdelmalek KHEZZAR, Mohamed el kamel OUMAAMAR

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 271-278 doi: 10.1007/s11708-013-0258-6

Abstract: However, small unbalance in the supply voltage and/or in the machine structure that exists in any realIn this case, it is too difficult to distinguish between the current harmonics due to the supply voltageprovide the relationship between the inter-turn short-circuits in the stator winding and the supply voltage

Keywords： induction machines     fault indicator     inter-turn short-circuit fault     unbalance supply voltage    

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Possible role of power-to-heat and power-to-gas as flexible loads in German medium voltage networks

Mark KUPRAT, Martin BENDIG, Klaus PFEIFFER

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 135-145 doi: 10.1007/s11708-017-0472-8

Abstract: Germany’s energy transition triggered a rapid and unilateral growth of renewable energy sources (RES) in the electricity sector. With increasing shares of intermittent RES, overcapacities during periods of strong wind and photovoltaic electricity generation occur. In the face of insufficient transmission capacities, due to an inhibited network extension, the electricity generation has to be curtailed. This curtailment of RES leads to economic losses and could be avoided through flexible loads. As an option to cope with those problems, the technologies of power-to-gas (PtG) and power-to-heat (PtH) are presented in this paper. First, the alkaline electrolyzer (AEL), polymer electrolyte membrane electrolyzer (PEMEL), and solid oxide electrolyzer cell (SOEC) are investigated regarding their operational parameters. Second, the electric boiler, electrode heating boiler, and heat pumps are considered. Ultimately, the network-supporting abilities and the potential to provide ancillary services, such as control power, load sequence operation, cold start and part load capability, are compared among one another.

Keywords： power-to-gas     power-to-heat     flexible loads     ancillary services     coherent energy systems    

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Title Author Date Type Operation

A novel method to investigate voltage stability of IEEE-14 bus wind integrated system using PSAT

Satish KUMAR,Ashwani KUMAR,N. K. SHARMA

Journal Article

Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

Journal Article

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

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

Journal Article

Theory and Method of Power System Integrated Security Region Irrelevant to Operation States: An Introduction

Yixin Yu, Yanli Liu, Chao Qin, Tiankai Yang

Journal Article

Recent advances toward high voltage, EC-free electrolytes for graphite-based Li-ion battery

Tong Zhang, Elie Paillard

Journal Article

Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Journal Article

Development and advances in modular multilevel converter based HVDC projects in China

Journal Article

nitrobenzene by the nano-structured Cu catalyst prepared by an electrodeposited method via tuning applied voltage

Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU

Journal Article

Cluster voltage control method for “Whole County” distributed photovoltaics based on improved differential

Journal Article

Reasonable Rated Voltage of High and Medium Power Adjustable-Speed Drives for Energy Saving

Ma Xiaoliang

Journal Article

power quality conditioner based on a three-level NPC inverter using fuzzy control techniques for all voltage

Salim CHENNAI,M-T BENCHOUIA

Journal Article

Experimental study of pollution effect on the behavior of high voltage insulators under alternative current

Hani BENGUESMIA, Nassima M’ZIOU, Ahmed BOUBAKEUR

Journal Article

Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated

Journal Article

Experimental investigation and comparative study of inter-turn short-circuits and unbalanced voltage

Fatima BABAA, Abdelmalek KHEZZAR, Mohamed el kamel OUMAAMAR

Journal Article

Possible role of power-to-heat and power-to-gas as flexible loads in German medium voltage networks

Mark KUPRAT, Martin BENDIG, Klaus PFEIFFER

Journal Article