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Addressing method for unified power flow conditioner based on load voltage indicator

A power flow controller and load voltage technology, applied in the direction of AC networks with the same frequency from different sources, can solve the problems of poor practical applicability, significant impact on the power system, and only consider the topology of the power grid, etc., to achieve fast calculation speed and calculation method simple effect

Active Publication Date: 2017-09-26
CEEC JIANGSU ELECTRIC POWER DESIGN INST +3
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Problems solved by technology

Therefore, the site location of the unified power flow controller has a great impact on the power system
[0003] At present, according to the classification of site selection optimization methods, the optimization methods of UPFC installation location can be roughly divided into: expert experience method, priority order method and mathematical analysis method; however, most of the above site selection methods are relatively theoretical and poor in practical application. Or only consider the grid topology, without considering the actual grid construction conditions

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  • Addressing method for unified power flow conditioner based on load voltage indicator
  • Addressing method for unified power flow conditioner based on load voltage indicator
  • Addressing method for unified power flow conditioner based on load voltage indicator

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Embodiment Construction

[0043] A method for selecting a site for a unified power flow controller based on a load voltage index, comprising the following steps:

[0044] Step 1: According to the power generation, load, grid structure, and operation mode data of the power grid, apply the power flow calculation program to calculate the basic power flow of the power grid;

[0045] Step 2: Calculate the load rate of each branch according to the calculation result of step 1, and perform normalized calculation of the load rate;

[0046] Step 3: According to the calculation result of Step 1, count the voltage of each bus, and calculate the voltage per unit;

[0047] Step 4: On the basis of Step 1, apply the power flow calculation program to calculate the power flow of the power grid after N-1 faults occur in each branch;

[0048] Step 5: According to the calculation result of step 4, count the load rate of each branch, and calculate the load rate per unit;

[0049] Step 6: According to the calculation resu...

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Abstract

The invention discloses an addressing method for a unified power flow conditioner based on a load voltage indicator. The addressing method comprises the following steps: calculating load rates of all circuits by using an initial load flow of a power grid, and carrying out normalization computing on the load rates to serve as weight coefficients of all branch circuits; then calculating addressing adaptability indexes of all the branch circuits based on a branch circuit outage distribution factor; finally, determining recommend installing points of the unified power flow conditioner according to sorting of index values. The addressing method for the unified power flow conditioner based on the load voltage indicator, provided by the invention, has the advantages of simple computing method, high computing speed and the like, and can provide reference for feasibility study and preliminary design for application of an FACTS (Flexible Alternating Current Transmission System) device to an actual power grid.

Description

technical field [0001] The invention relates to a site selection method for a unified power flow controller based on a load voltage index, and belongs to the technical field of flexible AC power transmission. Background technique [0002] Unified power flow controller (UPFC), as a kind of flexible AC transmission system (FACTS), can effectively adjust line power flow, control node voltage, and improve the safe and stable operation of power system. Therefore, the site location of the unified power flow controller has a great impact on the power system. [0003] At present, according to the classification of site selection optimization methods, the optimization methods of UPFC installation location can be roughly divided into: expert experience method, priority order method and mathematical analysis method; however, most of the above site selection methods are relatively theoretical and poor in practical application. Or only consider the grid topology, without considering the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/06
CPCH02J3/06
Inventor 王莹王震泉甄宏宁陈曦许文超张曼郭学英陆东生韩超黄涛
Owner CEEC JIANGSU ELECTRIC POWER DESIGN INST
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