A modeling and control approach to advanced nuclear power plants with gas turbines

Ablay, Günyaz

doi:10.1016/j.enconman.2013.08.048

Cited by 41 publications

(19 citation statements)

References 27 publications

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“…Since process control systems often use empirical models, i.e. FOPDT models, robustness and setpoint performance of these controllers in the presence of parameter variations and disturbances become important in operations [1,44]. The proposed VSC approach with its direct auto-tuning function can solve all these issues by providing a good setpoint response and robustness.…”

Section: Introductionmentioning

confidence: 99%

Variable structure controllers for unstable processes

Ablay

2015

Journal of Process Control

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Section: Introductionmentioning

confidence: 99%

Variable structure controllers for unstable processes

Ablay

2015

Journal of Process Control

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“…As the fossil fuel has been exploited excessively nowadays that brings about its shortage, the nuclear power has turned an alternative environmental energy and has drawn great attention of the researchers [1][2][3]. A nuclear power turbo-generator is a crucial component in the nuclear power plant [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effects of damper winding, eddy current, and leakage flux on magnetic field distortion and stator electrical quantity research of nuclear power turbo‐generator under external asymmetry

Zidian

Zhao

et al. 2019

IEEJ Transactions Elec Engng

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One phase overload or lightload condition is a very common condition in nuclear power turbo-generators, and magnetic field distortion and current asymmetrical degree concern the safe operation of turbo-generators. Damper and wedge windings are the special parts that distinguish the nuclear power generators from other smaller generators. Therefore, it is extremely important to investigate magnetic field distortion and stator electrical quantity. At the beginning, taking saturation and slot effects into account, the finite element model of a 1400MVA nuclear power generator is built up. And through comparison between the finite element simulation and the experimental results of no-load characteristics and short-circuit characteristics, the effectiveness of the finite element model was fully tested. Then, with or without damper and wedge windings, and leakage flux, the negative sequence equivalent circuit is employed to explain the law of magnetic field distortion under stator negative current, which is also verified by finite element simulation. Based on a novel theory proposed in this article, the law of the stator positive and negative sequence current, and the current asymmetrical degree with alteration of one-phase load under steady state are given in detail. Additionally, the finite element method is developed to test the correctness of the novel theory. The influence of damper and wedge windings, leakage flux at coil ends, and eddy current on the solid magnetic-pole of rotors on stator electrical quantity is also discussed in detail.Lv Pin (Non-member) was born in Harbin in China, on November 8, 1989. She graduated from Harbin University of Science and Technology and obtained her master and doctor diploma there. Currently, she is working at Heilongjiang University of Science and Technology. She is doing her postdoctoral research at China University of Mining and Technology. She is specialized in electric apparatus theoretical analysis, fault diagnosis, and simulation calculation. She also has plenty of knowledge about insulation calculation and smart-grids. Additionally, she is an expert at the new energy machines. Xie Zidian (Non-member) He was born in Hebei in China in 1962. Currently, he is working at Heilongjiang University of Science and Technology as a professor. He is specialized in design and research of microcomputer-integrated controllers for coal mining machine. Zhao Hongsen (Non-member) He was born in Harbin in China, on June 25, 1987. He graduated from Harbin University of Science and Technology and obtained his master and doctor diploma there. Currently, he is working at Lishui University. He is specialized in electric apparatus internal fault diagnosis and protection. Ge Baojun (Non-member) He was born in China in 1960. Currently, he is working at Harbin University of Science and Technology as a professor.He is specialized in the design and research of large generators, pumped storage motor, energy converter, and special motor. Now, he is the chief editor of Electric Machines and Control, which ...

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“…For all power plants, the power supply and demand must be balanced by either generation or load [5], which means that load following ability of a SMR-based plant such as the HTR-PM is quite needed for balancing power supply and demand. Therefore, it is very necessary to realize large-scale load-following control for the MHTGRs.…”

Section: Introductionmentioning

confidence: 99%

MLP compensated pd power-level control for modulator high temperature gas-cooled reactors

Dong

2014

Proceedings of the 33rd Chinese Control Conference

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Small modular reactors (SMRs) could be beneficial in providing electricity power safely and also be viable for specific applications such as seawater desalination and heat production. Due to its inherent safety feature, the modular high temperature gas-cooled reactor (MHTGR) has been seen as one of the best candidates in building the SMR-based nuclear power plants. Since the MHTGR dynamics has high nonlinearity and parameter uncertainty, it is necessary to develop nonlinear adaptive power-level control law which is not only beneficial to the safe, stable, efficient and autonomous operation of the MHTGR but also easy to be implemented practically. In this paper, based on the physically-based control design approach and multi-layer perception (MLP), an MLP-compensated proportional-differential (PD) power-level control is proposed for the MHTGR. It is proved theoretically that this newly-built controller can guarantee bounded closed-loop stability. Numerical simulation results not only verify the theoretical results but also illustrates the high performance of this controller in suppressing the oscillation of process variables caused by system parameter uncertainty.

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A modeling and control approach to advanced nuclear power plants with gas turbines

Cited by 41 publications

References 27 publications

Variable structure controllers for unstable processes

Variable structure controllers for unstable processes

Effects of damper winding, eddy current, and leakage flux on magnetic field distortion and stator electrical quantity research of nuclear power turbo‐generator under external asymmetry

MLP compensated pd power-level control for modulator high temperature gas-cooled reactors

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