Next Article in Journal
Analysis, Design and Dynamic Simulation of Novel Limited Swing Angle Torque Permanent Magnet Motor for High Voltage Circuit Breaker Application
Previous Article in Journal
FPGA-Based Real-Time Digital Solver for Electro-Mechanical Transient Simulation
Previous Article in Special Issue
Economic Feasibility of Energy Supply by Small Modular Nuclear Reactors on Small Islands: Case Studies of Jeju, Tasmania and Tenerife
Article Menu
Issue 10 (October) cover image

Export Article

Open AccessArticle
Energies 2018, 11(10), 2651; https://doi.org/10.3390/en11102651

Dynamic Matrix Control for the Thermal Power of MHTGR-Based Nuclear Steam Supply System

Institute of Nuclear and New Energy Technology, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Received: 14 September 2018 / Revised: 30 September 2018 / Accepted: 1 October 2018 / Published: 4 October 2018
(This article belongs to the Special Issue Nuclear Power, Including Fission and Fusion Technologies)
Full-Text   |   PDF [2837 KB, uploaded 4 October 2018]   |  

Abstract

The modular high temperature gas-cooled reactor (MHTGR) based nuclear steam supplying system (NSSS) is constituted by an MHTGR, a once-through steam generator (OTSG) and can generate superheated steam for industrial heat or electric power generation. The wide range closed-loop stability is achieved by the recently proposed coordinated control law, in which the neutron flux and the temperatures of both main steam and primary coolant are chosen as controlled variables, and the flowrates of both primary and secondary loop and the control rod speed are chosen as manipulated variables. However, the thermal power is only controlled in open loop manner and hence could be further optimized through feedback. Motivated by this, a dynamic matrix control (DMC) is proposed for optimizing the thermal power of MHTGR based NSSS. A simple step-response model with the thermal power response data is utilized in designing the DMC. The design objective of DMC is to optimize the deviation of the thermal power from its reference under its rate constraint. Then, by the virtue of strong stability of existing control law and optimization ability of DMC, a cascade control structure is implemented for the thermal power optimization, with the coordinated control law in the inner loop and DMC in the outer loop. Numerical simulation results show the satisfactory improvement of thermal power response. This cascade control structure inherits the advantages of both proportional-integral-differential (PID) control and DMC, by which the zeros offset and the short settling time of thermal power are realized. View Full-Text
Keywords: nuclear energy; optimization; dynamic matrix control; cascade control; modular high temperature gas-cooled reactor (MHTGR) nuclear energy; optimization; dynamic matrix control; cascade control; modular high temperature gas-cooled reactor (MHTGR)
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Jiang, D.; Dong, Z.; Liu, M.; Huang, X. Dynamic Matrix Control for the Thermal Power of MHTGR-Based Nuclear Steam Supply System. Energies 2018, 11, 2651.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top