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Self-adaptive event trigger control method of permanent magnet synchronous generator coupling chaotic network system

A permanent magnet synchronization and event-triggered technology, which is applied to the control of generators, electrical components, control systems, etc., can solve problems such as large step signals in the system and affecting system tracking performance

Active Publication Date: 2021-07-06
GUIZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the work of Wang and He, when the control signal is large, the system will generate a large step signal, which seriously affects the tracking performance of the system

Method used

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  • Self-adaptive event trigger control method of permanent magnet synchronous generator coupling chaotic network system
  • Self-adaptive event trigger control method of permanent magnet synchronous generator coupling chaotic network system
  • Self-adaptive event trigger control method of permanent magnet synchronous generator coupling chaotic network system

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Embodiment Construction

[0152] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0153] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to a self-adaptive event trigger control method of a permanent magnet synchronous generator coupling chaotic network system, and belongs to the field of permanent magnet synchronous motors. The method comprises: S1, establishing a dynamic model, wherein K identical permanent magnet synchronous generators, resistors and capacitors are connected to form a coupling network to describe an actual power generation system; S2, performing kinetic analysis on the dynamic model; and S3, in an inversion control framework, estimating unknown items of the dynamic model by using an interval type 2 fuzzy neural network, ensuring the boundaries of the system state through a cosine barrier function, achieving stable control in finite time through an improved saturation function reaching law and a Nussbaum type function, and approaching the unknown function of the dynamic model; and adopting an event triggering strategy and a second-order tracking differentiator to save calculation and communication resources, so that the problem of item explosion related to the inversion process is avoided. According to the method, the inherent chaotic oscillation related to the permanent magnet synchronous generator coupling chaotic network system can be completely suppressed.

Description

technical field [0001] The invention belongs to the field of permanent magnet synchronous motors, and relates to a trigger control method for a permanent magnet synchronous generator coupled with a chaotic system event. Background technique [0002] Permanent magnet synchronous generators have the advantages of reliable operation, no collector rings and brushes, high power density, and high efficiency. They are widely used in aerospace high-speed power generation, large steam turbine power generation and renewable energy wind power generation. A direct-drive wind turbine is mainly composed of a mechanical part, a permanent magnet synchronous generator, a machine-side converter, a grid-side converter and a phase-locked loop. Among them, the mechanical part of the direct-drive wind turbine is responsible for capturing wind energy, converting wind energy into mechanical energy and transmitting it to the permanent magnet synchronous generator; the permanent magnet synchronous ge...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/001H02J2203/20H02J2300/28H02J3/381H02J3/40H02P9/105H02P21/0014H02P9/10H02P9/006
Inventor 罗绍华胡雪纯肖凯文赵乐杨观赐
Owner GUIZHOU UNIV
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