1. ., ., ., ., - . // . – 2008. – 6. – . 16-22. 621.311.1 . , . « . . », , . [email protected], [email protected] . - , . . . : , , , , . THE NETWORK CALCULATIONS USING THE SEQUENTIAL EQUIVALENTING METHOD IN THE CASE OF INFORMATION INCOMPLETENESS ABOUT ADJACENCY NODES A.V. Malafeev, E.S. Kutukova Nosov Magnitogorsk State Technical University, Russia, Magnitogorsk. [email protected], [email protected] Abstract 210 This article is devoted to the network calculations using the sequential equivalenting method in the case of information incompleteness about adjacency nodes. This article offers to define the reacting power in the network nodes basing on the load flow of the active power and measured voltage modules and complex admittances of substitutional connection. Disregard of the phase shift between the voltage phasors in network nodes leads to unsatisfactory convergence in case of using the simple iteration method. This article offers using the Newton method of power flow to improve the convergence. Key words: active power flow, voltage module, state estimation, Newton method, convergence. ( ) . , . ( , - ) ( – ). . ( – - ) 110-220 . . - . [1]. (3–4 ) , , , . . , , . [2]. 211 , [3]. - , . 1. Y . 1. : P2 Q2 I 2U 2 , (1) P2 . (2) I 2U 2 Q I U1 U 2 Y , 2 U 1 U 2 Y 2U 2 Q , P2 . (3) P , jQ , : E Y 1,1U ; P jQ 3U E U (4) . U– (5) ; - . , Ek U 212 : I k 1 Y . (6) , , : P U 2 I cos 2 U 1 U 2 Y 2U 2 Q (7) , 2 U 2 I cos cos (8) . , - , . (4)–(6). [1]. . . - . . . , , , . . . k 1 k ,i Pi k 1 Qi k 1 P0 ,i k ,i Q0 ,i k E ,i E ,i k i– E E Ei k Pi Ei Qi k 1 ,i k 1 ,i ; P0,i k ,i k ,i Q0,i – Ii Pi k jQi k (6). 213 Uˆ i ; (7) ; (8) k 1 k 1 ; (9) (10) - . k 1 , , , - , . 1. ., // 2. ., ., . – 2008. – . ., ., . - 6. – . 16-22. - // : . 3. . .– : .« – XXIV . », 2013. – . 59-68. . . .- .– .: , 1976. – 220 . 621.314 . , . , . « . . », , . [email protected], [email protected] - 214