Balancing control method and system for distribution lines based on dynamic compensation

By detecting low-voltage areas of power distribution lines, identifying main lines, collecting three-phase load current and grid voltage, determining key components and dynamic compensation parameters, generating AC compensation current, and actively suppressing zero-sequence circulating current, the accuracy problem of dynamic compensation events in power distribution lines is solved, and highly accurate dynamic balance control is achieved.

CN122118831APending Publication Date: 2026-05-29国网黑龙江省电力有限公司大兴安岭供电公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
国网黑龙江省电力有限公司大兴安岭供电公司
Filing Date
2026-01-19
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing technologies, the accuracy of dynamic compensation events for power distribution lines is low, as it ignores key components and the distribution patterns of main lines, resulting in insufficient accuracy of the dynamic balance system.

Method used

By detecting low-voltage areas, identifying main lines, collecting three-phase load current and grid voltage, determining key components and dynamic compensation parameters, identifying dynamic compensation events, generating AC compensation current, and actively suppressing zero-sequence circulating current through zero-sequence current, the control and balance of current state are achieved.

Benefits of technology

It improves the accuracy of dynamic compensation events, enhances the accuracy of AC dynamic compensation current, realizes the accuracy of dynamic balance system, takes into account key components and line distribution, and improves the control capability of current state.

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Abstract

The application discloses a kind of based on dynamic compensation's power distribution line's balance control method and system, the present application relates to the technical field of power distribution line, based on the identification of this dynamic compensation event to determine multiple dynamic compensation projects, according to the project content of multiple dynamic compensation projects, corresponding project priority and the multiple real-time data of main line determine corresponding alternating compensation current, improve the accuracy of alternating dynamic compensation current.According to the harmonic processing of this alternating compensation current to determine corresponding current control event, and mark corresponding zero sequence current, to change the current state of the main line;Real-time load of the main line is collected, according to the real-time load of the main line and corresponding current state determines the balance event of power distribution line, based on the balance event, the three-phase load current and three-phase grid voltage of the main line determines dynamic balance system, realizes the control of the current state of the main line, improves the accuracy of dynamic balance system.
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