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CCHP type multi-time scale optimal scheduling method and system for micro grids

A multi-time-scale, optimized scheduling technology, applied in the direction of power network operating system integration, AC network voltage adjustment, information technology support system, etc., can solve the problems of wind farm curtailment, power loss, waste of renewable energy, etc.

Active Publication Date: 2019-04-12
YANSHAN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a CCHP type micro-grid multi-time scale optimal scheduling method and system to solve the serious wind curtailment phenomenon, power loss and serious waste of renewable energy in various wind farms due to the limitations of traditional power grid scheduling. The problem

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  • CCHP type multi-time scale optimal scheduling method and system for micro grids
  • CCHP type multi-time scale optimal scheduling method and system for micro grids
  • CCHP type multi-time scale optimal scheduling method and system for micro grids

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[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] The purpose of the present invention is to provide a CCHP microgrid multi-time scale optimal scheduling method and system to effectively alleviate power shortages, improve functional reliability, maximize the use of renewable energy, and realize the economical operation of CCHP microgrids , reduce the loss of electricity, reduce the occurrence of wind abandonment in various wind farms and the waste of renewable energy.

[0058] In order to make the abov...

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Abstract

The invention discloses a CCHP type multi-time scale optimal scheduling method and system for micro grids. The multi-time scale optimal scheduling method comprises the steps of: firstly determining agrid compensation cost according to a switchable load and an adjustable load parameter from demand side response; respectively establishing operation gains according to a CCHP unit parameter, a lithium bromide absorption refrigeration unit and a phase-change energy storage device parameter, so as to establish a triple generation system operation gain; and finally establishing a system operation cost and a gain function, and carrying out optimal scheduling on a CCHP micro grid by adoption of a multi-time scale optimal scheduling strategy to ensure that the total cost is minimum. By adoption ofthe multi-time scale optimal scheduling method and system provided by the invention, electric vacancy can be effectively relieved, the reliability can be improved and the maximum utilization of renewable energy sources can be achieved.

Description

technical field [0001] The present invention relates to the field of optimal dispatching of microgrids, in particular to a multi-time-scale optimal dispatching method and system for CCHP microgrids, which optimizes dispatching of microgrids in the grid-connected operating state, that is, according to the parameters of each micropower source and the microgrid According to the demand of cooling, heating and electric loads within the period, the power generation plan of the micro-grid system will be formulated for a period of time in the future, so that the micro-grid system can obtain the best economic benefits and power supply reliability. Background technique [0002] The basic task of micro-grid optimal scheduling is to reasonably and effectively arrange the output of each distributed power source and the interactive power with the distribution network according to a certain control strategy on the premise of meeting the load demand of the micro-grid system, so that the enti...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/48H02J3/14
CPCH02J3/14H02J3/48H02J2203/20Y02B70/3225Y04S20/222
Inventor 窦春霞米雪张博岳东
Owner YANSHAN UNIV
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