Method for planning capacities of distributed power supplies and capacitors

A distributed power supply and capacitor technology, applied in the field of power equipment, to achieve the effect of ensuring the maximum benefit

Inactive Publication Date: 2017-02-22
HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +3
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  • Application Information

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Problems solved by technology

[0003] With more and more distributed generation (Distributed Generation, DG) grid-connected operation, due to the influence of distributed generation in the power distribution system, the power flow characteristics of the distribution network have changed from the traditional one-way flow to a new one. Two-way flow, thus bringing many new challenges to the stable operation of the power distribution system

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  • Method for planning capacities of distributed power supplies and capacitors
  • Method for planning capacities of distributed power supplies and capacitors
  • Method for planning capacities of distributed power supplies and capacitors

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Embodiment 1

[0035] The present invention provides the planning method of distributed power supply and capacitor capacity, such as figure 1 As shown, the planning method includes:

[0036] Step 1: Construct the planning model maxf based on the expected revenue of distributed power and capacitors s ;

[0037] Step 2, obtain the distribution parameters at the node where the distributed power supply is installed, obtain the probability distribution function of the output power of the distributed power supply at the installation node based on the distribution parameter, and encode the number of distributed power supplies at the installation node and the number of capacitors to be installed;

[0038]Step 3: Set the genetic parameters, generate the initial population according to the coded parameters, perform probability flow analysis and calculation on each individual in the initial population based on the semi-invariant method, and obtain the fitness of each individual in the initial populati...

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Abstract

The invention provides a method for planning the capacities of distributed power supplies and capacitors, and belongs to the field of power equipment. A component planning model is included; and the quantities of the distributed power supplies and the capacitors are encoded to solve a panning model by combining an improved genetic algorithm with an elitist strategy, thereby obtaining the specific installation quantities of the distributed power supplies and the capacitors on the premise of meeting the maximum benefit. The influences of all aspects of the economy, the environment, the security and the like are considered as much as possible when a planning target function is selected; comprehensive benefits including the economic benefit, the environmental benefit and the security benefit are selected as a static planning target function; and the improved genetic algorithm of hybrid encoding is introduced for solving, so that the obtained planning scheme can ensure the maximum benefit as much as possible in comparison with the prior art.

Description

technical field [0001] The invention belongs to the field of electric equipment, in particular to a distributed power supply and a planning method for capacitor capacity. Background technique [0002] Facing the dual pressure of the current energy situation and the living environment, people began to continuously seek solutions to energy and environmental problems. Among them, distributed new energy power generation adopts clean and renewable energy as its primary energy, which is renewable, non-polluting, etc. Therefore, the development of distributed power generation technology has received extensive attention and strong support from countries all over the world. [0003] With more and more distributed generation (Distributed Generation, DG) grid-connected operation, due to the influence of distributed generation in the power distribution system, the power flow characteristics of the distribution network have changed from the traditional one-way flow to a new one. The two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38G06N3/12
CPCH02J3/381G06N3/126H02J2203/20Y04S10/50
Inventor 姚建华徐淦荣吴宇红纪涛杨强叶丽红蒋乐朱斌泉夏红鑫
Owner HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
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