Results 91 to 100 of about 7,321,935 (205)

Comparative Study of Active Power Curtailment Methods of PVs for Preventing Overvoltage on Distribution Feeders

, 2018
© 2018 IEEE. Overvoltage is one of the major issues on distribution grids with high penetration of photovoltaic (PV) generation. Overvoltage could be prevented through the control of active/reactive power of PVs.
Dahal, Sudarshan, Sumit Paudyal, Bhattarai, Bishnu P., Oguzhan Ceylan, Ceylan, Oguzhan, Paudyal, Sumit, Tonkoski, Reinaldo, Reinaldo Tonkoski, Sudarshan Dahal, Bishnu P. Bhattarai   +9 more
core   +1 more source

Optimum reactive power compensation methodology to minimize system overvoltage conditions

, 2017
Sri Lankan Power system has experienced power frequency over voltages at steady state conditions predominantly at New Anuradhapura, New Chilaw and Chunnakam Grid Sub Stations. New Anuradhapura being connected to the lengthiest 220kV transmission lines
Perera, CKS
core   +1 more source

Generator step up transformer overvoltage protection in EPS power plants [PDF]

, 2015
This paper presents the current state of the overvoltage protection of generator transformers in power plants of the Power Company of Serbia (EPS) and gives a critical overview of their overvoltage protection.
Mrvić Jovan, Vukelja Petar, Simić Ninoslav   +2 more
core   +1 more source

Suppression of Generator-Side Transient Overvoltage in a DC 600 V Power Car System Based on AZSVPWM

Energies
Generator-side transient overvoltage may occur in DC 600 V AC–DC–AC railway power supply systems because switching-induced common-mode voltage generated by the front-end rectifier can propagate in reverse through cable distributed parameters, grounding ...
Fangdong Hou, Pengfei Chi, Jiakang Gao, Delong Liang, Fuqiang Tian   +4 more
doaj   +1 more source

HV isolated power supply system for complex multiple electrical potential equipment in 500 kV hybrid DC breaker

High Voltage, 2019
High-voltage direct current circuit breakers (HVDC CB) are one of the key technologies of multi-terminal DC systems and DC grids. Different from other equipment that use a large number of power electronic devices, the HVDC CB cannot obtain its power from
Xiangyu Zhang, Zhanqing Yu, Zhanqing Yu, Rong Zeng, Meng Zhang, Yuehuang Zhang, Fengliang Xiao, Wei Li   +7 more
doaj   +1 more source

Mechanism Analysis and Simulation Study of Closing Overvoltage Fault in EMU Circuit Breaker

Chengshi guidao jiaotong yanjiu
Objective The overvoltage caused by circuit breaker closing will aggravate the insulation aging of high voltage equipment when EMU (electric multiple units)passes neutral section.
ZHANG Mingrui, ZHANG Ningchuan, LIU Zhengwei   +2 more
doaj   +1 more source

Robust Power System Frequency Control

, 2009
Frequency control as a major function of automatic generation control is one of the important control problems in electric power system design and operation, and is becoming more significant today due to the increasing size, changing structure, emerging ...
Bevrani, Hassan
core  

Overvoltage protection in industrial power distribution

, 2017
Sähköverkkojen ylijännitteet aiheuttavat laitevahinkoja ja keskeytyskustannuksia. Kustannuksien vähentämiseksi sähköverkon osia suojataan ylijännitesuojilla, joilla pyritään minimoimaan verkon komponentteihin kohdistuvat vahingot.
Paju, Jussi-Mikko
core   +1 more source

Resolving Sub-Cycle Overvoltage Issue in Solar and Type-4 Wind Farms Employing Low Voltage Ride Through

IEEE Access
Over the past few years, transmission grid in the USA has seen numerous unintentional tripping events of large-scale inverter based resources (IBRs). These trippings were primarily caused by non-standard settings and certain fault ride through controls ...
Shah Mohazzem Hossain, Trupal Patel, Sukumar Brahma   +2 more
doaj   +1 more source

Study on power frequency overvoltage and wind turbine disconnection probability during non-full-phase operation

Journal of Physics: Conference Series
Abstract Experimental results indicate that during non-full-phase operation following a single-phase transient grounding fault, power frequency overvoltage occurs in the system. In systems with significant wind power integration, such overvoltage may lead to the disconnection of wind turbines, thereby increasing the probability of ...
Donghui Wang, Zengping Wang, Tong Wang
openaire   +1 more source