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Method, device and system for speed control of hydraulic turbine based on multivariable dynamic matrix

A dynamic matrix, hydraulic turbine technology, applied in engine control, safety devices, engine components, etc., can solve problems such as easy to cause overshoot and reduce the reliability and stability of hydraulic turbine speed control control

Active Publication Date: 2021-06-04
HNAC TECH
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  • Claims
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Problems solved by technology

[0003] The rotation speed (rotation frequency) of the water turbine is an important part of the water turbine control. In the prior art, the PID (Proportion-Integral-Differential, proportional integral differential) control system is usually used alone to carry out the speed regulation control of the water turbine. However, the PID control There is a certain inertia in the output of the governor of the system. For medium and large turbines, it is easy to cause overshoot in the gradual stage of the turbine, thereby reducing the reliability and stability of the speed control of the turbine.

Method used

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  • Method, device and system for speed control of hydraulic turbine based on multivariable dynamic matrix
  • Method, device and system for speed control of hydraulic turbine based on multivariable dynamic matrix
  • Method, device and system for speed control of hydraulic turbine based on multivariable dynamic matrix

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[0027] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0028] In one embodiment, such as figure 1 Shown, provide a kind of water turbine speed regulation control method based on multivariable dynamic matrix, this method comprises the following steps:

[0029] Step S100, monitoring the rotation frequency of the hydraulic turbine to be controlled.

[0030] The speed control of the water turbine specifically refers to the control of the rotational speed (Rotational Speed) of the water turbine. The rotational speed refers to the number of times an object performs circular motion per unit time, which can be represented by the symb...

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Abstract

This application relates to a water turbine speed control method, device and system based on a multivariable dynamic matrix. When performing water turbine speed control, the use of proportional integral differential adjustment can achieve the purpose of quickly approaching a given standard frequency. When the rotation frequency is close to the standard frequency, the multi-variable dynamic matrix adjustment can be used to gradually adjust the rotation frequency to the standard frequency to prevent overshoot, thereby improving control reliability and stability.

Description

technical field [0001] The present application relates to the technical field of water turbine control, in particular to a water turbine speed regulation control method, device and system based on a multivariable dynamic matrix. Background technique [0002] A water turbine is a power machine that converts water flow energy into rotating mechanical energy. It is an important hydropower equipment that makes full use of clean and renewable energy to achieve energy saving, emission reduction, and environmental pollution reduction. With the intelligent development of the power grid system, the requirements for the control reliability and stability of medium and large hydro turbine units are becoming more and more stringent. [0003] The rotation speed (rotation frequency) of the water turbine is an important part of the water turbine control. In the prior art, the PID (Proportion-Integral-Differential, proportional integral differential) control system is usually used alone to c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B15/12F03B3/18
CPCF03B3/183F03B15/12F05B2260/82F05B2270/101Y02E10/20
Inventor 熊梓威李焕文黄桂元冯琰黄财均郭婷
Owner HNAC TECH
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