Journal
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
Volume 54, Issue 9, Pages 2501-2505Publisher
SCIENCE PRESS
DOI: 10.1007/s11431-011-4494-x
Keywords
hybrid automatic voltage control; coordinated control; advanced state estimation
Funding
- Northeast China Grid Company [2009ZB1048]
- National Natural Science Foundation of China [50907038, 50977047]
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In order to coordinate automatic voltage control (AVC) systems of a large interconnected system, a multi-level multi-area hybrid automatic voltage control (MLMA-HAVC) system was constructed. This system began its trial operation in the Northeast China Grid in January 2010, and for the first time in China and abroad it realized automatic close-loop control of multi-area and multi-level interconnected power grid and multi-objective self-approaching optimization in aspects of security, high quality and economic operation. This system has three breakthroughs in theory and engineering application: 1) Established the MLMA-HAVC theory to solve multi-objective optimization of large-scale system; 2) proposed reactive power/voltage coordination control method to inhibit or further eliminate regional oscillations; 3) presented advanced state estimation algorithm to guarantee acquisition of high reliability data. This paper summarizes the basic principle of MLMA-HAVC, and reports engineering realization of MLMA-HAVC system in the Northeast China Grid.
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