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Control device of nuclear power plant based on fuzzy decoupling and coordinating control method

A technology of coordinated control and control device, applied in the direction of program control, control/regulation system, adaptive control, etc. in sequence/logic controller, can solve the problem of lack of coupling research of steam generator and steam turbine, etc.

Inactive Publication Date: 2008-05-21
HARBIN ENG UNIV
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Problems solved by technology

[0004] After searching the existing technical literature, it is found that the current coordinated control methods for nuclear power plants include the coordinated control scheme for 10MW high-temperature gas-cooled reactors by Yan Yong et al., and the coordinated control method for 10MW high-temperature gas-cooled reactors is given. The coupling between the generator and the steam turbine is studied

Method used

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  • Control device of nuclear power plant based on fuzzy decoupling and coordinating control method
  • Control device of nuclear power plant based on fuzzy decoupling and coordinating control method
  • Control device of nuclear power plant based on fuzzy decoupling and coordinating control method

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Embodiment Construction

[0055] The measurement system of this embodiment uses temperature sensors, pressure sensors, flow meters and neutron density detectors. The industrial computer contains nuclear power plant coordination control software based on fuzzy decoupling strategies. The actuators use control rods, water supply valves and steam valves. .

[0056] Combined with Figure 1, the entire nuclear power coordinated control system is composed of the basic control level and the coordinated control level, and the coordinated control level includes the management part 1 and the coordination part. The basic control level includes the steam turbine speed control loop, the steam generator outlet steam pressure control loop and the reactor power control loop. The steam turbine speed control loop is composed of the steam turbine speed controller 3, the steam turbine steam valve 7 and the nuclear power plant 10; the outlet steam pressure control loop of the steam generator is composed of the outlet steam p...

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Abstract

The present invention provides a control device and a coordinated control method for a nuclear power plant based on fuzzy decoupling. The present invention consists of a basic control grade and a coordinated control grade. The coordinated control grade also comprises a management part and a coordination part. The basic control grade comprises a steam turbine rotating speed control loop, a steam generator outlet steam pressure control loop and a reactor power control loop. A fuzzy decoupling controller is that a proper compensator is added to and arranged between the steam turbine rotating speed control loop and the steam generator outlet steam pressure control loop so as that the influence of a coupling circuit to the main loop is eliminated. All loops can be controlled respectively and independently, so the object of decoupling control is achieved. The present invention is suitable for the nuclear power plant which is of serious nonlinear, coupling and time variation. The present invention is of high control precision and good robustness. The present invention can be actually used in the nuclear power plant control system design and improve the control quality of the whole system.

Description

technical field [0001] The present invention relates to a control device for a nuclear power plant, and also relates to a control method for a nuclear power plant, in particular to a control device and a coordinated control method for a nuclear power plant based on a fuzzy decoupling strategy. Background technique [0002] A nuclear power plant is a complex large system. The early nuclear power plant control system consisted of a series of relatively independent local control loops. Its structure was relatively simple, but its ability to adapt to different operating modes and working conditions of the plant was relatively poor. [0003] In most MIMO control systems, a change in one input signal changes multiple output quantities, and each output is not affected by just one input. The process control requires that the system can run safely and stably, have good adjustment performance, and can track the change of the set value with a small error or make the steady-state error...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04G05B13/02F01D17/00
Inventor 张伟夏国清边信黔付明玉李娟
Owner HARBIN ENG UNIV
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