Results 271 to 280 of about 265,602 (329)
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Application of static excitation systems for rotating exciter replacement
Conference Record of 1997 Annual Pulp and Paper Industry Technical Conference, 2002Many power generation plants in the pulp and paper industry are faced with high maintenance and down time due to the excitation system. DC field breakers, motor driven rheostats, commutator deterioration, and replacement parts for the automatic voltage regulator (AVR) are just a few of the problems typical of these aged power plants. The result is high
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About the static excitation system with a fully controlled rectifier
Eurocon 2013, 2013The paper analyzes the potential influence of a rectifier fully controlled with thyristors (RFCT) over some components of a power group with static switching. Problems related to the active power flows in distorting and/or non-symmetric regime are briefly presented.
Petre-Marian Nicolae +1 more
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Performance evaluation of static Excitation System of Tarbela Power Station
2016 International Conference on Computing, Electronic and Electrical Engineering (ICE Cube), 2016Generator Excitation System is used to provide the DC supply to the field winding for producing the magnetic field in the generator. It is considered as a main part and backbone of the generator. Excitation system also provides stability of the power system by controlling the system voltages which can be enhanced for considering some key factors.
Muddasar Nawaz +3 more
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A new generator static excitation system using boost-buck chopper
Proceedings of the 1996 IEEE IECON. 22nd International Conference on Industrial Electronics, Control, and Instrumentation, 1996A new generator excitation system using a boost-buck chopper as a kind of static exciter is proposed to overcome the lack of field forcing capability of the bus fed exciter under the input line fault condition. It increases or maintains the generator field current by boosting the field voltage in the case of the input AC line voltage drop during and ...
null Hong-Woo Rhew +2 more
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Stability performance of new static excitation system with boost-buck converter
IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200), 2002This paper deals with the design and evaluation of a new static-excitation system for generator excitation systems to improve the steady-state and transient stabilities. It increases or maintains the generator field current by boosting the field voltage in the case of an input AC line voltage drop during and immediately after a fault.
null Chan-Ki Kim +2 more
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Shaft voltages in generators with static excitation systems-problems and solution
IEEE Transactions on Energy Conversion, 1988Details on four types of shaft voltages are given, with emphasis on the occurrence, transmission and damaging mechanisms of shaft voltages from static excitation systems. A model for numerical simulation is presented and simulation results are compared with tests performed on a statically excited 1200 MVA turboset.
C. Ammann +3 more
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PSS design for a small synchronous generator with static excitation system
2007 IEEE Lausanne Power Tech, 2007The paper presents an analytical derivation of parameters for the power system stabilizer (PSS) that produces damping torque component only. The method is applied to a linear single-machine system model equipped with static excitation system. Good dynamic properties of the plant equipped with the proposed PSS have been confirmed by simulation using non-
Zbigniew Lubosny, Janusz W. Bialek
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IEEE PSS4B implementation in Static Excitation System and Hardware-in-Loop Testing with RTDS
2020 IEEE International Conference on Power Systems Technology (POWERCON), 2020Significant integration of renewable energy sources with conventional thermal, hydro and nuclear power poses several operational challenges to grid operators. Small signal instability caused by electro-mechanical oscillatory modes is one such example.
Samya Deb Bhattacharya +5 more
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Enhancement of static excitation system performance for generators near electric arc furnace loads
IEEE Transactions on Energy Conversion, 1999The tuning of static excitation systems (SESs) to enhance the performance of six gas turbine (GT) generators near an electric arc furnace (EAF) feeder has been successfully accomplished. The operation of these EAFs causes severe and long duration voltage fluctuations at the generator bus.
Chi-Jui Wu +5 more
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PQ versus EMC problems at a static excitation system in a power group
2014 International Symposium on Electromagnetic Compatibility, 2014This paper presents measurements comprising both power quality and EMC fields for a static excitation system composed of a transformer and controlled rectifier bridge in a power system generator group. The replacement of the old auxiliary excitation generator eliminates the disadvantage of using electrical machines with the mass in motion inertia and ...
Petre-Marian Nicolae +2 more
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