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A power distribution system that intelligently adjusts reactive power output based on load changes

A technology of power distribution system and intelligent adjustment, applied in flexible AC transmission system, reactive power compensation, AC network voltage adjustment and other directions, can solve problems such as section offset, and achieve the effect of improving utilization rate and economic benefits

Active Publication Date: 2018-11-13
秦皇岛龙鼎电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, the voltage and reactive power optimization cycle of the large power grid usually runs in a unit of several minutes or even one hour. The state of the power grid has shifted relative to the globally optimized section

Method used

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  • A power distribution system that intelligently adjusts reactive power output based on load changes
  • A power distribution system that intelligently adjusts reactive power output based on load changes
  • A power distribution system that intelligently adjusts reactive power output based on load changes

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Experimental program
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Embodiment Construction

[0040] figure 1 A power distribution system 10 for intelligently adjusting reactive power output based on load changes of the present invention is shown, and the power distribution system includes:

[0041] There are multiple feeder lines 14, which are used to provide electric energy for multiple loads 15;

[0042] The SVC device 12 is used to provide reactive power for the feeder 14 to maintain the stability of the feeder voltage 14. The SVC device is a plurality of 14 and corresponds to the feeder one by one;

[0043] The grid-connected device 13 is used to realize the grid-connected operation of the SVC equipment 12 and the feeder line 14, and the grid-connected device 13 corresponds to the feeder line 14 one by one;

[0044] and monitoring device 11;

[0045] The monitoring device 11 includes:

[0046] A monitoring module 113, a control module 112, and a communication bus 111 for communication between the modules;

[0047] The monitoring module 113 is used to monitor t...

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Abstract

The present invention discloses a distribution system adjusting reactive power output intelligently based on load change. The distribution system adjusting reactive power output intelligently based on load change can identify and track change of system running topological and state intelligently, acquire information about a node voltage, a load, and force being capable of reactively compensated by a branch line, dynamically and intelligently adjust reactive compensation with the information as an information source, and coordinate reactive power injection of all distributed SVC devices, so that voltages of all nodes in a feedback line in the distribution system meet a standard requirement, the distributed SVC devices are coordinated to provide a reactive power support for the distribution system, and the use ratio and economic benefits of the distributed SVC devices are further improved.

Description

Technical field [0001] The invention relates to a power distribution system for intelligently adjusting reactive power output based on load changes. Background technique [0002] In the power system, voltage is an important index to measure the quality of power energy. If the voltage is too low or too high, it will not only affect the life and efficiency of electrical equipment, but also endanger the stability and safe operation of the power system. Reactive power balance is an important means to ensure voltage stability. Voltage and reactive power control plays an important role in reducing network loss, improving voltage quality and coordinating system resource allocation. [0003] The traditional distribution network adopts voltage-reactive power integrated control (VQC), and the voltage regulation of the substation is mainly realized by the on-load tap changer and the switching of the capacitor bank. With the continuous access of distributed SVC equipment to the distrib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/16
CPCH02J3/16Y02E40/10Y02E40/30
Inventor 靖新宇
Owner 秦皇岛龙鼎电气有限公司