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Quick non-linear fuzzy predictive control method for speed regulating system of pumped storage unit

A pumped storage unit, non-linear prediction technology, applied in the direction of active/predictive/predictive control, fuzzy logic algorithm, control algorithm type, etc., can solve problems such as the inability to predict the future operating state of the speed regulation system of the pumped storage unit, and achieve The effect of improving control quality and good working condition adaptability

Active Publication Date: 2016-10-12
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a fast nonlinear fuzzy predictive control method for the speed regulation system of the pumped storage unit. The technical problem of predicting the future operating state of the system

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  • Quick non-linear fuzzy predictive control method for speed regulating system of pumped storage unit
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  • Quick non-linear fuzzy predictive control method for speed regulating system of pumped storage unit

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Embodiment Construction

[0069] In order to make the object, technical solution and advantages of the present invention clearer, the present invention 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 invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0070] In the embodiment of the present invention, taking the start-up process control of a pumped storage power plant as an example, the fast nonlinear fuzzy predictive control method for the speed regulation system of the pumped storage unit provided by the present invention is described. The design parameters of the pumped storage power plant unit in the embodiment are listed in Table 1;

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Abstract

The invention discloses a quick non-linear fuzzy predictive control method for a speed regulating system of a pumped storage unit. The quick non-linear fuzzy predictive control method includes the three steps of fuzzy PID parameter self-adaption, online rolling prediction and control law computing. By the adoption of the control method, the function that the fuzzy PID control parameters are adjusted automatically along with the working conditions is achieved, the future system state is predicted through a pumped storage unit speed regulating system non-linear model built in a controller by means of the online rolling prediction method, and the future system state quantity deviation information is considered when a real-time control law is set. By the adoption of the quick non-linear fuzzy predictive control method, the requirements of the control process of the pumped storage unit under different working conditions can be met, the control precision of the unit is improved effectively, and the transient state performance of the operating process of the unit is improved.

Description

technical field [0001] The invention belongs to the field of nonlinear control of the speed regulation system of a pumped storage unit, and more specifically relates to a fast nonlinear fuzzy predictive control method for the speed regulation system of a pumped storage unit. Background technique [0002] With the rapid development of economy and society, the power load increases rapidly, the peak-to-valley difference continues to increase, and the power grid has higher and higher requirements for stability. Insufficient peak-shaving capacity will become a prominent problem restricting the development of power systems. With its unique operating characteristics of peak-shaving and valley-filling, pumped-storage power stations play a role in regulating loads, promoting power system energy conservation, and maintaining safe and stable operation of the power grid. It has gradually become an effective and indispensable means of regulation in my country's power system. In order to ...

Claims

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Application Information

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IPC IPC(8): F03B15/00F03B13/06
CPCF03B13/06F03B15/00F05B2270/404F05B2270/707Y02E10/20Y02E60/16
Inventor 周建中许颜贺郑阳胡弦张云程张楚付文龙李超顺胡肇伟赵威赵志高武越越张楠
Owner HUAZHONG UNIV OF SCI & TECH
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