Micro-grid operation optimization method based on dynamic electricity price

An operation-optimized, microgrid technology, applied in the direction of AC networks with different sources of the same frequency, etc.
CN104065072AInactive Publication Date: 2014-09-24SICHUAN UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2014-09-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a micro-grid operation optimization method based on a dynamic electricity price. The method is characterized in that fuzzification is carried out on a reference plan exchange power curve delivered by a power distribution network to a micro-grid and a plan exchange power curve of the micro-grid, the Euclid close degree of the two curves is calculated so that the electricity price can be dynamic, a target function taking the dynamic electricity price, operation maintenance cost and pollution discharge treatment cost into consideration is built, and a micro-grid economic optimization operation scheme is solved by means of a particle swarm optimization. Accordingly, the micro-grid can coordinate operation of the power distribution network in the operation optimization process, and influences of micro-grid connection on the power distribution network are reduced.
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Description

technical field

[0001] The invention relates to a micro-grid operation optimization method based on dynamic electricity price. Specifically, the present invention aims at a micro-grid with various micro-power sources, and establishes a micro-grid operation optimization model based on dynamic electricity prices, operation and maintenance costs, and sewage treatment costs. It belongs to the technical field of coordinated operation optimization of microgrid and distribution network. Background technique

[0002] Microgrid is a new type of network structure composed of micro-sources, energy storage equipment, loads and control devices. It can fully promote the large-scale access of distributed power sources and renewable energy, and realize high reliability of various energy forms for loads. Supply is an important form of realizing active distribution network and smart grid. Microgrid operation optimization refers to the rational allocation of loads according to the control st...

Claims

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