Coordination Control of SMR-Based NSSS Modules Integrated by Feedwater Distribution

Dong, Zhe; Song, Maoxuan; Huang, Xiaojin; Zhang, Zuoyi; Wu, Zhiyong

doi:10.1109/tns.2016.2601342

Cited by 17 publications

(4 citation statements)

References 23 publications

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“…From Equation (19), Φ n given by Equation (14) can be regarded as an extension of matrix M r defined by Equation (7).…”

Section: Remarkmentioning

confidence: 99%

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Boolean Network-Based Sensor Selection with Application to the Fault Diagnosis of a Nuclear Plant

Dong

2017

Energies

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Fault diagnosis is crucial for the operation of energy systems such as nuclear plants, and heavily relies on various types of sensors for temperature, pressure, concentration, etc. Due to the redundancy of sensors in each energy system, the sensor selection scheme can deeply influence the diagnostic efficiency. In this paper, a Boolean network (BN) with its linear representation is proposed for describing the fault propagation among sensors. Both the sufficient condition of fault detectability and that of fault discriminability are given. Then, a sensor selection method for fault detection and discrimination is proposed. Finally, the theoretic result is applied to realize the diagnosis oriented sensor selection for a nuclear steam supply system based on a modular high temperature gas-cooled reactor (MHTGR). The computation and simulation results verify the correctness of the theoretical results.

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“…From Equation (19), Φ n given by Equation (14) can be regarded as an extension of matrix M r defined by Equation (7).…”

Section: Remarkmentioning

confidence: 99%

“…The power control of the NSSS adopts the model-free adaptive controller proposed in Reference [18], and the plant coordination control adopts the result given in References [19][20][21].…”

Section: Numerical Simulationmentioning

confidence: 99%

Boolean Network-Based Sensor Selection with Application to the Fault Diagnosis of a Nuclear Plant

Dong

2017

Energies

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“…In [25], a FFN flowrate controller was proposed by Kocić based on the linearized model of a mine ventilation network, which however cannot handle the network nonlinearity. After 2000, some important progresses in FFN control have been made [26][27][28]. By incorporating the branch fluid dynamics and network graph features, the non-mininal and minimal models for FFNs with single pump were proposed and two centralized Based on the above discussion, to guarantee the stable and efficient operation of multi-modular or hybrid energy systems, it is basically needed to drive the flowrates and (or) pressure-drops of their secondary FFN to their desired values.…”

Section: Introductionmentioning

confidence: 99%

“…By analyzing the dissipativity of FFN with a single pump, Dong proposed a decentralized flowrate controller that not only guarantees globally asymptotic stability (GAS) but also takes the simple proportional-integral (PI) form [27]. By giving a nonlinear differential-algebraic model for FFN with a single pump, a flowrate-pressure controller providing globally bounded stability was proposed in [28] and was then applied for realizing module coordination control of multi-modular nuclear plants integrated by the feedwater distribution scheme shown in Figure 3.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Control of Fluid Flow Networks with Application to a Nuclear-Solar Hybrid Plant

et al. 2017

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Fluid flow networks (FFNs) can be utilized to integrate multiple once-through heat supply system (OTHSS) modules based on either the same or different energy resources such as the renewable, nuclear and fossil for multi-modular and hybrid energy systems. Modeling and control is very important for the safe, stable and efficient operation of the FFNs, whose objective is to maintain both the flowrates and pressure-drops of the network branches within specific bounds. In this paper, a differential-algebraic nonlinear dynamic model for general FFNs with multiple pump branches is proposed based on both the branch hydraulics and network graph properties. Then, an adaptive decentralized FFN flowrate-pressure control law, which takes a proportional-integral (PI) form with saturation on the integral terms, is established. This newly-built control not only guarantees satisfactory closed-loop global stability but also has no need for the values of network hydraulic parameters. This adaptive control is then applied to the flowrate-pressure regulation of the secondary FFN of a two-modular nuclear-solar hybrid energy system and numerical simulation results show the feasibility and high performance of this network control strategy. Due to its concise form, this new flowrate-pressure FFN controller can be easily implemented practically.

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Novel fuzzy logic based coordinated control for multi-unit small modular reactor

Zhang

Peng

Cheng

2019

Annals of Nuclear Energy

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Coordination Control of SMR-Based NSSS Modules Integrated by Feedwater Distribution

Cited by 17 publications

References 23 publications

Boolean Network-Based Sensor Selection with Application to the Fault Diagnosis of a Nuclear Plant

Boolean Network-Based Sensor Selection with Application to the Fault Diagnosis of a Nuclear Plant

Modeling and Control of Fluid Flow Networks with Application to a Nuclear-Solar Hybrid Plant

Novel fuzzy logic based coordinated control for multi-unit small modular reactor

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