Transformer control device and method based on three-dimensional zone diagram policy

US8981592B2 · kind B2 · utility

Assignees

• Northwestern University · US
• Huaguang Zhang · CN
• Qiuye Sun · CN
• Jun Yang · CA
• Bin Jiang · CN
• Lianzhi Wang · CN
• Dazhong Ma · CN
• Zhenwei Liu · CN
• Fei Teng · CN
• Zhiqiang He · CN
• Xintong Li · CN

Inventors

• Huaguang Zhang · Shenyang, CN
• Qiuye Sun · Shenyang, CN
• Jun Yang · Beijing, CN
• Bin Jiang · Fujian, CN
• Lianzhi Wang · Shenyang, CN
• Dazhong Ma · Shenyang, CN
• Zhenwei Liu · Shenyang, CN
• Fei Teng · Qingdao, CN
• Zhiqiang He · Nanhu, CN
• Xintong Li · Lo Wu, CN

Key dates

• Filing date: Mar 7, 2012
• Grant date: Mar 17, 2015
• Expiry date: Jul 22, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E40/30
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Disclosed is a transformer control device and method based on a three-dimensional zone diagram policy. The method includes: setting transformers, including a transformer A and a transformer B; collecting three-phase voltage data and three-phase current data in a power system; rectifying the collected three-phase voltage data and the three-phase current data; transferring the data to the latches in a time-transfer method; transferring the data to an A/D converter of a processor to convert analog signals to digital signals; constructing a three-dimensional zone diagram in the processor; determining transformer operating conditions according to positions of points formed by voltage, reactive power factor and substation load; and adjusting the transformers. This invention adopts a simple, easy and clear three-parameter control policy including voltage, power factors and substation loads, so as to simplify analysis of transformer operating conditions, realize optimal substation operation, reduce transformer loss, and increase economic benefits.