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Adaptive optimal output feedback controller structure for two interconnected synchronous generator systems and realizing method thereof

A technology of output feedback and generator, applied in adaptive control, general control system, control/regulation system, etc.

Active Publication Date: 2019-03-01
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Since the research on the fuzzy adaptive approximate optimal control of a single nonlinear system can no longer meet the needs of people's development, many scholars have begun to study the control methods of multiple interconnected nonlinear systems.

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  • Adaptive optimal output feedback controller structure for two interconnected synchronous generator systems and realizing method thereof
  • Adaptive optimal output feedback controller structure for two interconnected synchronous generator systems and realizing method thereof
  • Adaptive optimal output feedback controller structure for two interconnected synchronous generator systems and realizing method thereof

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Embodiment Construction

[0174] Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent replacements or equivalent transformations fall within the protection scope of the present invention.

[0175] The invention discloses an adaptive optimal output feedback controller structure of an interconnected double synchronous generator system, such as figure 1 As shown, the controller structure is used to control the generator system I and the generator system II, the generator system I and the generator system II are connected through the interaction unit between subsystems,

[0176] The controller structure includes the first observer unit, the 1st, 1st backstepping approximation unit, the first comparator unit B1, the 1st, 2nd backstepping app...

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Abstract

The invention discloses an adaptive optimal output feedback controller structure for two interconnected synchronous generator systems and a realizing method thereof. The controller structure is used for controlling a generator system I and a generator system II. The structure firstly aims at a condition of state observing incapability in practical application. A fuzzy observer is designed for estimating the power angles and the power angle speeds of the two interconnected synchronous generator systems and the mechanical frequencies of the generators, thereby reducing the control cost of the two interconnected synchronous generators, and overcoming defects in traditional state feedback control. Afterwards, a traditional adaptive back-stepping method is used for designing an adaptive back-stepping controller, and a performance index function of the two interconnected synchronous generator systems is estimated through neural network technology, and furthermore an optimal controller of thesystem is designed. Through cooperation of the adaptive back-stepping controller and an approximate optimal controller, the control method can ensure stable operation of the two interconnected generator systems and furthermore can reduce the performance index of the system.

Description

technical field [0001] The invention relates to an adaptive optimal output feedback controller structure of an interconnected double synchronous generator system and a realization method thereof, which can be used in the technical field of industrial process control. Background technique [0002] In recent years, the research on microgrid technology is becoming a hot spot both at home and abroad. In the micro-grid system, wind power generators, photovoltaic generators, micro gas turbines and diesel engines are the main power sources, and they are all connected to the micro-grid through inverters. In order to make the microgrid operate stably, the control strategy of synchronous generators has attracted more and more attention from scholars. Synchronous generator power angle is an important measurable output, which is very common in generator control systems. The valve opening of the steam turbine of the generator is a control quantity often used in the generator system. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 杨杨徐闯岳东谈杰李焱飞刘奇东司雪峰戈井志
Owner NANJING UNIV OF POSTS & TELECOMM
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