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2017 International Energy and Sustainability Conference (IESC), 2017
Modern electric power systems are witnessing deployment of an increasing number of distributed renewable energy resources. Reliability of grid infrastructure plays a key role in increased use of renewable energies. Fault management is a key function in reducing outage time and increasing system reliability.
Wen Fan, Yuan Liao
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Modern electric power systems are witnessing deployment of an increasing number of distributed renewable energy resources. Reliability of grid infrastructure plays a key role in increased use of renewable energies. Fault management is a key function in reducing outage time and increasing system reliability.
Wen Fan, Yuan Liao
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Blade Faults Diagnosis in Power Generation Gas Turbines
Volume 2: I&C, Digital Controls, and Influence of Human Factors; Plant Construction Issues and Supply Chain Management; Plant Operations, Maintenance, Aging Management, Reliability and Performance; Renewable Energy Systems: Solar, Wind, Hydro and Geothermal; Risk Management, Safety and Cyber Security; Steam Turbine-Generators, Electric Generators, Transformers, Switchgear, and Electric BOP and Auxiliaries; Student Competition; Thermal Hydraulics and Computational Fluid Dynamics, 2017This paper presents a case study in managing the dilemma of whether to resume or stop the operation of a power generation gas turbine with suspected blade faults. Vibration analysis is undertaken on the vibration signal of the gas turbine, to obtain an insight into the health condition of the blades before any decision is made on the operation of the ...
Meng Hee Lim, Salman Leong, Kar Hoou Hui
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Risk evaluation of coupling fault for power generation equipment
2011 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, 2011Risk assessment is an important basis for maintenance decision-making. Based on the reliability analysis, trend prediction and condition evaluation, the paper defines a new running vulnerability, proposes a new analysis method of coupling faults consequence, and builds a risk evaluation model of power generation equipment.
Jianlan Li, Shuhong Huang
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Generalized method for fault simulations in power systems
European Transactions on Electrical Power, 2000AbstractThis paper presents a new generalized method of modelling of any kind of shunt and series faults as single or simultaneous faults in arbitrary combination. The proposed approach can be used for conventional fault studies for the steady‐state model based on the nodal admittance representation as well as for fault simulations under transient ...
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Wind turbine power generation performance evaluation under faults condition
2016 International Conference on Condition Monitoring and Diagnosis (CMD), 2016Since faults in wind turbine transmission chains would reduce the efficiency of generated power, accurate power generation performance (PGP) evaluation is necessary for the economic use of wind energy and reasonable arrangement of maintenance plan. However, the harsh environment and illegal operations lead the PGP difficult to evaluate.
S. S. Tian, Z. Qian, L. X. Cao
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Power Optimization of Steam Generators Under Fault Conditions
2017Under fault conditions, it is important maintain the safety of nuclear power plant. Meanwhile, it is also necessary to generate its maximum power output, especially for small modular reactors, to improve the economy. The helical-coiled once-through steam generator of IRIS is chosen as a research object.
Huasong Cao, Peiwei Sun, Jianmin Zhang
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Location of faults in power cables by fault-generated surges
2012The object of this research is to develop a satisfactory method for locating high-impedance faults in underground cables. Most methods of locating faults require that the fault-impedance be reduced to a low value before the measurement can be made. After a careful investigation of the available literature, it was decided that the most desirable method ...
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PLL algorithm for power generation systems robust to grid voltage faults
2006 37th IEEE Power Electronics Specialists Conference, 2006In the case of unbalanced grid faults, one of the main problems for the Distributed Power Generation Systems (DPGSs) controller is the second harmonic ripple in the control, consequence of the phase unbalance caused by the fault. The second harmonic propagates into different sections of the controller and can have a negative influence on the controller
Adrian V. Timbus +4 more
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A novel fault diagnostic method in power converters for wind power generation system
Applied Energy, 2020Abstract In order to decrease the downtime, enhance maintenance efficiency, and reduce the management cost of the wind power system, fault diagnosis technologies are considered as powerful tools for its good operation and maintenance. For example, high fault diagnosis accuracy can ensure effective fault-tolerant control and improve the durability of ...
Jinping Liang +3 more
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Independent PQ Control for Distributed Power Generation Systems under Grid Faults
IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics, 2006This work aims to present a generalized vector-based formulation for calculating the grid-side current reference of distributed power generation systems in order to independently control active and reactive power delivered to the grid. Strategies for current reference generation were implemented on the abc stationary reference frame and their ...
P. Rodriguez +4 more
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