Optimization method for locating and sizing of distributed power

A technology of distributed power supply, site selection and fixed capacity, which is applied in the direction of instruments, data processing applications, information technology support systems, etc., and can solve problems such as network loss impact and failure to receive due attention

Active Publication Date: 2013-10-16
STATE GRID CORP OF CHINA +2
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Problems solved by technology

On the one hand, the access of distributed power to the distribution network changes the power flow distribution in the network, which will inevitably affect the network loss; on the other hand, the access of distributed power can absorb part of the load and has a certain expansion effect. Thereby delaying the investment in power grid upgrading and transformation, bringing huge economic benefits, but this role has not received due attention

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  • Optimization method for locating and sizing of distributed power
  • Optimization method for locating and sizing of distributed power
  • Optimization method for locating and sizing of distributed power

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Embodiment Construction

[0156] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0157] A method for optimal site selection and capacity determination of a distributed power supply is provided, and the method includes the following steps:

[0158] Step 1: Establish a multi-objective optimization model for distributed power generation site selection and capacity determination;

[0159] Step 2: Clarify the constraints of the multi-objective optimization model;

[0160] Step 3: Establish a distributed power generation random output model and process it;

[0161] Step 4: Establish a load random output model;

[0162] Step 5: Select the location and capacity of the distributed power supply.

[0163] Described step 1 comprises the following steps:

[0164] Step 1-1: Find the minimum value of the network loss of the distribution network; that is, compared with the existing distribution network, after the distributed power source is connected...

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Abstract

The invention provides an optimization method for locating and sizing of a distributed power. The method comprises the following steps: establishing a multi-objective optimization model of the locating and sizing of the distributed power; defining constrains of the multi-objective optimization model; establishing a distributed power random output model and processing the distributed power random output model; establishing a load random output model; and carrying out locating and sizing of distributed power. According to the invention, with minimum network loss and maximum delayed investment benefits being as target optimization functions and by utilizing a two-step optimization method, the access location of the distributed power in the power distribution network and installation capacity are obtained, so that the positive effect of the access of the distributed power on the power distribution network is fully embodied and the optimization method can be used to evaluate economic benefit of the access of the distributed power to the power distribution network from the aspect of capacity-expanding effect.

Description

technical field [0001] The invention belongs to the technical field of distribution network optimization planning, and in particular relates to a method for optimal site selection and capacity determination of distributed power sources. Background technique [0002] Distributed power is flexible, decentralized, efficient, clean and environmentally friendly. Reasonable grid-connected applications can greatly reduce the cost and loss of the transmission network. At the same time, in order to meet the specific needs of the system or users, it can be used for peak regulation or power supply for users in remote areas. It can also delay the huge investment required for the upgrading of the transmission and distribution network. The impact of distributed power generation on the distribution network is closely related to its access location and capacity. The type, installation location, and installation capacity of distributed power generation must be coordinated with the distributi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
CPCY04S10/545Y02E40/76Y02E40/70Y04S10/50
Inventor 刘苑红陈颖陈海赵明欣刘思革刘伟苏剑张磐于建成王旭东
Owner STATE GRID CORP OF CHINA
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