Magnetic suspension flywheel battery H-indefinite control method based on state space analysis

A state-space equation and flywheel battery technology, applied in adaptive control, general control system, control/regulation system, etc., can solve the problems of system inconvenience, complicated H∞ controller structure, and many debugging parameters

Inactive Publication Date: 2014-02-26
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0003] The active maglev flywheel control system generally uses classic control algorithms such as PI and PID. This type of algorithm has a simple structure and is easy to debug. However, this type of algorithm requires many parameters to be debugged. In the actual use process, it takes a lot of debugging time to find a suitable control. parameters, when the controlled object changes, it is necessary to re-adjust and find another control parameter, which brings a lot of inconvenience to the system
The H∞ control algorithm has the advantages of good robustness and strong anti-perturbation ability, and is now more and more used in various control systems. However, the structure of the H∞ controller is relatively complicated, the solution process is relatively Object Model Accurate

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  • Magnetic suspension flywheel battery H-indefinite control method based on state space analysis
  • Magnetic suspension flywheel battery H-indefinite control method based on state space analysis
  • Magnetic suspension flywheel battery H-indefinite control method based on state space analysis

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Embodiment Construction

[0025] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings of the specification.

[0026] Such as figure 1 As shown, the H∞ controlled magnetic levitation flywheel battery includes the H∞ control system and the controlled object. The H∞ control system includes the H∞ controller and the corresponding control system weighting function W 1 , W 2 , W 3 The controlled object includes power amplifier, displacement sensor drive and magnetic levitation flywheel mechanical system. The magnetic levitation flywheel mechanical system includes iron core, magnetic bearing coil, displacement sensor and energy storage flywheel; by solving the state space equation of the controlled object and combining the control system Weighting function W 1 , W 2 , W 3 , Determine the control parameters of the H∞ controller, and use the H∞ controller as the controller of the magnetic levitation flywheel battery; the displacemen...

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Abstract

The invention relates to a magnetic suspension flywheel battery H-indefinite control method based on state space analysis. A state space equation of a controlled object is substituted to an enclosed loop control system transfer function, and a control parameter of an H-indefinite controller is obtained with combination of a control system weighting function via solution. The controlled object is controlled by the H-indefinite controller according to the control parameter. The state space equation of the controlled object is confirmed on the basis of state space analysis, and the control parameter of the H-indefinite controller can be rapidly obtained. Therefore, robustness stability and anti-interference and anti-perturbation capability of a magnetic suspension flywheel battery system are effectively enhanced, high-speed and stable rotation of a magnetic suspension energy storage flywheel is facilitated, and specific power and specific energy of a magnetic suspension flywheel battery are enhanced.

Description

Technical field [0001] The invention relates to a H∞ control method for a magnetic suspension flywheel battery based on state space analysis. Background technique [0002] The magnetic levitation flywheel battery uses a non-contact rotating flywheel to store mechanical energy. It is a secondary discharge device that uses stored mechanical energy instead of electrical energy. It has the advantages of high specific power, high specific energy, fast charge and discharge, high speed, long life, and environmental friendliness. It has broad application prospects in the fields of aerospace, transportation, medical equipment, industrial applications and power energy. Magnetic levitation energy storage flywheels can generally be supported by magnetic bearings in the form of superconducting, permanent magnet, hybrid, active, etc. Among them, the superconducting materials of superconducting magnetic levitation flywheels are expensive and require extremely high temperature conditions, and ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
Inventor 高辉申景金马海啸付蓉荣丽娜
Owner NANJING UNIV OF POSTS & TELECOMM
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