Three-phase unbalanced compensation point positioning method for low-voltage power distribution network

• Main Authors: Ding Xudong, Shi Lei, Yin Chunjie, Duan Peiyong, Zhang Mei, Wang Fang
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2016
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a three-phase unbalanced compensation point positioning method for a low-voltage power distribution network .Compensation devices are simulated from a tail pole to a head pole of a circuit one by one, and the initial installation positions of the compensation devices are determined; three-phase unbalanced load compensation is conducted on each pole on branch circuits, and user number algebras and three-phase unbalanced drop factor variations carried on an A-phase circuit, a B-phase circuit and a C-phase circuit of each pole are calculated; according to the three-phase unbalanced drop factor variations, the final installation positions of the compensation devices of the branch circuits are determined; after the compensation positions of all the branch circuits are determined, the positions are gathered to the head pole, the unbalanced load distribution condition of each branch circuit is shown through data converted to the head pole, and the load distribution condition on a main circuit