Affiliation:
1. Qingdao Vocational and Technical College of Hotel Management
2. Qingdao Hisense Network Technology Co., Ltd
Abstract
The state estimation based on the synchronous phasor measuring unit (PMU) is the wide-area measurement system (WAMS) of important technical support, It is great to real-time monitoring of large area power grid control direction and provides advanced information technology platform. it provides advanced information technology platform for real-time monitoring of large area power grid and control direction, but the current wide-area measurement system less point, difficult to direct the system state estimation. This paper proposes a method based on PMU and SCADA mixed measurement state estimation. The simulation results show that this method has a higher convergence speed, And from the topology of the network structure of the restrictions.
Publisher
Trans Tech Publications, Ltd.
Reference6 articles.
1. Hauer J F, Validation of phasor calculations in the Macrodyne PMU for California-Oregon transmission project tests of March 1993. IEEE Trans on PD , 1996 , 11(3)：1224-1231.
2. Phadke A G , Thorp J S , Karimi K J. State estimation with phsor measurements[J]. IEEE Trans on Power Systems , 1986 , 1(1)：233-241.
3. Naduvathuparambil B , Valenti M C , Feliachi A. Communication delays in wide area measurement systems [C]. Proceedings of the 34thSoutheastern Symposium on SystemTheory , Huntsville , 2002：118-122.
4. Wang Shao , Jiang Zhuo-han. Power system state estimation based on singular value decomposition and equivalent current measurement transformation[J]. Power System Protection and Control. 2012, 40（12） , 111-114.
5. CHEN Fang , HAN Xue-shan , LI Hua-dong. Decomposition and coordination state estimation based on PMU[J]. Power System Protection and Control. 2009, 37(1), 44-48.