Distributed robust island microgrid multi-target power distribution and control system

A control system and distributed power generation technology, applied in system integration technology, information technology support system, electrical components, etc., can solve problems such as slow convergence rate

Active Publication Date: 2020-10-30
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scheme [1][2][4][5] achieves finite time convergence, and its convergence time depends on the initial value of the system. The fixed time convergence of scheme [3] overcomes the dependence on the initial value, but its convergence rate may still be slowly

Method used

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  • Distributed robust island microgrid multi-target power distribution and control system
  • Distributed robust island microgrid multi-target power distribution and control system
  • Distributed robust island microgrid multi-target power distribution and control system

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Embodiment Construction

[0065] 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.

[0066] 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 distributed robust island microgrid multi-target power distribution and control system, and belongs to the field of intelligent power grids. The system is composed of an equipment layer, a control layer and a communication layer. The communication layer is formed by communication connection between communication transceivers and is used for information exchange between the power generation units; the control layer generates a control signal of the distributed power generation device according to a designed controller by using the local measurement information and theinformation exchanged by the communication network; the equipment layer is a physical power infrastructure, and the distributed power generation device responds to a control signal to realize transmission of power energy. Compared with the existing finite time and fixed time control scheme which only realizes proportional active power distribution control, the designed rapid robust control schemerealizes active power economic distribution control under various optimization objectives, and is beneficial to improving the total benefit. In addition, the controller can enable the convergence rate of the control system to be higher by utilizing an exponential function.

Description

technical field [0001] The invention belongs to the field of smart grids, and relates to a distributed and robust island micro-grid multi-objective power distribution and control system. Background technique [0002] Microgrid is not only an effective way to effectively utilize distributed power generation such as photovoltaic power generation, wind power generation, and fuel cells, but also provides auxiliary services such as black start, frequency regulation, and emergency demand response. Generally, a microgrid can be regarded as a small power system formed by distributed generation, local loads, monitoring and protection devices, etc., which can be connected to the large power grid or run in isolation. An isolated microgrid must not only ensure frequency synchronization and voltage stability, but also achieve reasonable active and reactive power distribution control. In order to make the microgrid operate stably and economically, hierarchical control is widely used. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/48H02J3/00H02J13/00
CPCH02J3/388H02J3/381H02J3/48H02J3/0075H02J13/00032Y02E40/70Y04S10/12
Inventor 陈刚李志勇
Owner CHONGQING UNIV
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