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Method for determining best installation position of passive filter device

An installation location, passive filtering technology, applied in harmonic reduction devices, AC networks to reduce harmonics/ripples, etc., and can solve problems such as less harmonic suppression

Active Publication Date: 2015-05-27
山西省电力公司吕梁供电公司 +1
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  • Abstract
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Problems solved by technology

[0003] At present, the installation of passive filtering devices in the distribution network system is mainly installed by the nonlinear users themselves, and the technical solution installed on the nonlinear load side is used to filter out the harmonics. Considering the harmonic suppression from the perspective of the power grid, there is relatively little harmonic suppression, and there is no such thing as a distribution network. From the perspective of the network system, consider the optimal installation location under the same harmonic control effect. At the same time, when using passive filter devices to control harmonics in the distribution network, in addition to considering the control of harmonics by passive filters effect, but also consider the cost of passive filters

Method used

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  • Method for determining best installation position of passive filter device

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Embodiment Construction

[0041] Such as figure 1 As shown, the method for determining the optimal installation position of the passive filtering device of the present invention is characterized in that: the method includes the following steps:

[0042] The first step: establish the harmonic governance objective function, figure 2 Shown is a typical distribution network system, assuming that there are K branches in the system, each branch contains nonlinear loads, the main harmonic is the h harmonic, and the m branch is installed to filter the h harmonic Source filter, the expression of the hth harmonic voltage of each branch is established as:

[0043] V k , new h = V k , old h + Δ V k h - - - ...

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Abstract

The invention discloses a method for determining the best installation position of a passive filter device, and belongs to the technical field of installation of the passive filter device. According to the technical scheme, the method for determining the best installation position of the passive filter device comprises the following steps that a harmonic wave target management function is built; a geometric model of the harmonic wave target management function is built, and whether the geometric model meeting the requirements is built or not according to the harmonic wave target management function is judged; the best installation position of the passive filter is obtained. The method for determining the best installation position of the passive filter device is applicable to the electric power department.

Description

technical field [0001] The method for determining the optimal installation position of the passive filter device of the present invention specifically relates to a method for determining the optimal installation position of the passive filter device in a power distribution network. Background technique [0002] With the wide application of nonlinear loads such as power electronic devices in the power system, the power harmonic pollution of the power grid, especially the distribution network, is becoming more and more serious. The harmonic and reactive power problems of the power system have attracted more and more attention. , Harmonic suppression has become one of the hot issues in the power system. There are two basic ideas for suppressing harmonic pollution: one is active suppression, that is, to transform the nonlinear load itself such as power electronic devices, and solve the harmonic problem from the source; two. It is passive compensation, that is, install a harmonic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/01
CPCY02E40/40
Inventor 刘永刚王新彦杨亚奇刘海艳赵莉华张亚超雷晶晶
Owner 山西省电力公司吕梁供电公司
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