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Compensation equipment optimization configuration method considering voltage sag economic loss uncertainty

A technology for voltage sag and compensation equipment, applied in circuit devices, reactive power adjustment/elimination/compensation, electrical components, etc., can solve problems such as abnormal operation of sensitive equipment and economic losses in industrial production

Active Publication Date: 2019-07-09
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Voltage sag can cause abnormal operation of sensitive equipment, thus causing huge economic losses to industrial production

Method used

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  • Compensation equipment optimization configuration method considering voltage sag economic loss uncertainty
  • Compensation equipment optimization configuration method considering voltage sag economic loss uncertainty
  • Compensation equipment optimization configuration method considering voltage sag economic loss uncertainty

Examples

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Embodiment 1

[0108] Please refer to the attached figure 1 , is a schematic flowchart of a method for optimizing configuration of compensation equipment that takes into account the uncertainty of voltage sag economic loss provided by Embodiment 1 of the present invention. The method specifically includes the following steps:

[0109] S10. Establishing a compensation model of the static synchronous compensator and the dynamic voltage restorer according to the impedance matrix of the power system, and proposing a calculation method for the compensation capability of the static synchronous compensator and the dynamic voltage restorer when they are connected at different positions in the power system;

[0110] S20. Combining the compensation equipment models under different fault types, an analytical formula for voltage sag when a fault occurs at any position in the power system is established;

[0111] S30, according to the voltage sag analytical formula, establish the probability density func...

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Abstract

The invention discloses a compensation equipment optimization configuration method considering voltage sag economic loss uncertainty. The method is characterized in that the uncertainty of voltage sagcharacteristics of a sensitive load of the distribution network is taken into account for different faults, and a stochastic voltage sag economic loss model is established; operating characteristicsof a static synchronous compensator and a dynamic voltage restorer are considered, a mathematical model of multi-type compensation equipment is established based on an impedance matrix, the objectivefunction is to minimize the total cost of equipment installation and operation and economic loss of voltage sag, the artificial immune algorithm is utilized to optimize configuration of multiple typesof compensation equipment, the distribution network voltage quality and configuration economical property of the compensation equipment are improved, and the method has as a certain engineering practical value.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of power quality control and analysis, and in particular to a compensation equipment optimization configuration method that takes into account the uncertainty of voltage sag economic loss. Background technique [0002] With economic development and wide application of high-precision equipment, users have higher and higher requirements for voltage quality. Voltage sag will cause abnormal operation of sensitive equipment, which will cause huge economic losses to industrial production. Therefore, no matter from the perspective of ensuring the safety and economic operation of the power system, or from the perspective of ensuring the safety of equipment, it is urgent to control the voltage sag in the power system, respond to the occurrence of voltage sag in the system in time, and analyze the system when a fault occurs. According to the distribution of voltage sags in the network and th...

Claims

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Application Information

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IPC IPC(8): H02J3/18
CPCH02J3/1842H02J2203/20Y02E40/10
Inventor 谢伟伦万四维薛峰黄志威陈欣晖吴洁婷谢培成许家凤
Owner GUANGDONG POWER GRID CO LTD
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