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Chaotic control method and device for six-dimensional fractional order power system

A technology of power system and chaotic control, applied in safety devices, chaotic models, nonlinear system models, etc., can solve problems such as instability and oscillation of units, and achieve the effect of ensuring stable operation, ensuring operation stability, and eliminating adverse effects.

Active Publication Date: 2022-03-29
NO 719 RES INST CHINA SHIPBUILDING IND
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Problems solved by technology

[0004] The embodiment of the present invention provides a chaos control method and device for a six-dimensional fractional order power system to solve the technical problem of the six-dimensional fractional order water turbine power system in the related art that causes unit instability and oscillation due to chaos

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  • Chaotic control method and device for six-dimensional fractional order power system
  • Chaotic control method and device for six-dimensional fractional order power system
  • Chaotic control method and device for six-dimensional fractional order power system

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Embodiment Construction

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0056] The embodiment of the present invention provides a chaos control method for a six-dimensional fractional-order power system, which can solve the technical problem of unit instability and oscillation caused by chaos in the six-dimensional fractional-order hydraulic turbine power system in the prior art.

[0057] see figure 1 As shown, ...

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Abstract

The invention discloses a chaos control method and device for a six-dimensional fractional order power system, and relates to the technical field of water turbine control, and the chaos control method comprises the steps: S10, building an error model of operation parameters of a water turbine power system according to a mathematical model of the water turbine power system; s20, a sliding mode surface is defined according to the error model of the water turbine power system, and an error controller is determined according to the condition that the error of the water turbine power system reaches the sliding mode surface; and S30, controlling the water turbine power system according to the determined error controller, so that the error of the water turbine power system is stabilized in a preset range. According to the method, the six-dimensional fractional-order water turbine power system can reach the defined sliding mode surface and can slide stably on the sliding mode surface all the time, no obvious overshoot or oscillation exists in the control process, the error of the controlled six-dimensional fractional-order water turbine power system is stabilized within the preset range, the chaos phenomenon in the water turbine power system is eliminated, and the reliability of the water turbine power system is improved. And stable operation of the hydraulic turbine set is ensured.

Description

technical field [0001] The invention relates to the technical field of water turbine control, in particular to a chaos control method and device for a six-dimensional fractional-order power system. Background technique [0002] The fractional-order system model can describe the control system more accurately than the integer-order model, and can obtain better control performance. The research on the dynamic behavior and control of fractional-order nonlinear systems, as an emerging field, has received unprecedented attention at home and abroad. [0003] At present, the research and application of fractional calculus in control theory and control is still in its infancy, and it is still a new topic in the field of control. For example, the control of the six-dimensional fractional-order hydraulic turbine power system in the engineering field has chaotic characteristics. Due to the chaotic phenomenon, the unit is unstable and oscillated, which will seriously endanger the health...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/27G06N7/08G06F17/13G06F17/16F03B15/00G06F119/14
CPCG06F30/17G06F30/27G06N7/08G06F17/13G06F17/16F03B15/00G06F2119/14Y02E10/20Y02P70/50
Inventor 李俊益朱东保陈勇李帅军李华峰郁飞韩灿峰姚露
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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