based on h ∞ Mixed Sensitivity Robust Control Method for Micro Gas Turbines

A micro gas turbine, mixed sensitivity technology, applied in the direction of electrical components, reducing/preventing power oscillation, single AC network with different frequencies, etc., can solve the problems of micro-grid power fluctuations, frequency fluctuations, etc., to achieve high stability and improve robustness Stickiness, the effect of overcoming the difficulty of design
CN104333004BActive Publication Date: 2017-06-23STATE GRID CORP OF CHINA +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2017-06-23

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Abstract

The invention provides a miniature gas turbine robust control method based on H(indefinite) mixed sensitivity, which comprises the following steps: according to a relationship between a micro-grid frequency deviation deltaf and a power deviation deltaP, establishing a transfer function Gp(s) of a miniature gas turbine; establishing a sensitivity function S and a complementary sensitivity function T, and constructing weighting functions W1, W2, W3 which satisfy restriction conditions; and establishing a closed-loop system transfer function Tzw(s) of a generalized controlled object of the micro-grid, and furthermore a transfer function K(s) of an H(indefinite) controller Chinf of the miniature gas turbine. According to the miniature gas turbine robust control method, an MT power controller based on robust H(indefinite) control is constructed, and defects of high difficulty for designing a plurality of controllers, low coordination, complicated structure, etc. in prior art can be overcome. Robustness, dynamic performance and interference resistance of a micro-grid system are effectively improved.
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Description

technical field

[0001] The present invention is based on the H ∞ The mixed-sensitivity micro-gas turbine robust control method belongs to the field of new energy power system and power grid technology. Combined with modern robust control, the micro-gas turbine controller is designed for the stable and safe operation of the micro-grid. It is suitable for wind power generation systems, photovoltaic power generation systems, A micro-turbine, a fuel cell, a load-controllable electrolyzer system (or energy storage system) for producing hydrogen, and a micro-grid composed of electric loads. Background technique

[0002] With the increase of energy demand and the depletion of fossil energy, the change of energy structure forces people to actively seek and develop green and recyclable new energy. Solar energy and wind energy have effectively alleviated energy demand, but the instability of wind energy and solar energy is a serious challenge to the quality of electric energy and the...

Claims

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