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Power supply network voltage reactive-load remote control real-time optimization control method

An optimized control, voltage reactive power technology, applied in reactive power compensation, control/regulation systems, reactive power adjustment/elimination/compensation, etc., and can solve problems such as grid system optimization

Inactive Publication Date: 2008-02-20
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method overcomes the defect that the local control method cannot optimize the entire power grid system

Method used

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  • Power supply network voltage reactive-load remote control real-time optimization control method

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Embodiment Construction

[0009] This embodiment refers to Fig. 1, and it is realized by the following steps: first monitor front-end processor and collect each substation data 1, this data is sent into state estimation module 3 through telemetering and remote signaling data device 2, carries out load prediction 4 to power grid system, predicts The data in the state estimation module 3 and the data in the state estimation module 3 are sent to the capacitor optimization switching calculation module 5 at the same time, and whether the optimization is successful is judged according to the calculation results. 7. If the judgment result is "yes", execute the step 10 of sending data by remote control and remote adjustment. If the judgment result is "no", then perform reactive power balance analysis and form capacitor switching measures. Also sent to judge whether the bus voltage exceeds the limit? 6. If the judgment result is "No", then return to the substation 11, if the judgment result is "Yes", then proce...

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Abstract

The present invention is reactive voltage remote sensing and remote controlling and optimizing control method for power network. The control process includes the following steps: acquiring the data of the power stations with the monitoring preliminary machine; feeding the data into state estimating module; feeding data from the state estimating module to the capacitor optimized throw-in and throw-off calculation module; judging whether to have successful optimization based on the calculation result; for judgment result 'Yes', executing remote control and remote regulation; for judgment result 'No', executing reactive in-situ balance analysis and forming capacitor throwing-in and throwing-off measure and feeding the data from the state estimating module for judging whether to have out-of-limit bus voltage; for judgment result 'No', returning the data to power station; for judgment result 'Yes', and performing the transformer tapping regulation while feeding the data to power station.

Description

Technical field: [0001] The invention relates to a voltage reactive power control method of a power supply network. Background technique: [0002] Among the conventional voltage and reactive power control methods of the power supply network, the most commonly used is the nine-field diagram and its improved methods. These methods are aimed at the control of substation voltage and reactive power. They belong to local local control, so these methods cannot reach the entire The optimization of the system, that is, the qualified rate of the adjusted voltage and the reduction of the network loss cannot achieve the best effect. Invention content: [0003] The object of the present invention is to provide a real-time optimization control method for remote measurement and remote control of voltage and reactive power of power supply network. This method overcomes the defect that the local control method cannot optimize the entire power grid system. The present invention is realize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/70H02J3/18
CPCY02E40/30
Inventor 王承民张丽新
Owner HARBIN INST OF TECH