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A novel newton current equation method on power flow analysis in microgrid

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2 Author(s)
Yanping Zhang ; Sch. of Electr. Eng., Southeast Univ., Nanjing, China ; Yuping Lu

This paper presents a Newton Raphson current equation for the solution of power flow analysis in microgrid, comprising 2n current injection equations and m active power equations written in polar coordinates. The reactive power mismatch of PV bus is introduced as new state variable, which leads to a simple procedure for converting bus model between PV bus and PQ bus. In conversion process, the submatrix Y* is retained, and only few rows and columns are added or deleted. The proposed method is also applied to other occasions where the polar coordinates are adopted. Moreover, the models of microsources suitable for power flow analysis are summarized according to their operating characteristics.

Published in:

Power & Energy Society General Meeting, 2009. PES '09. IEEE

Date of Conference:

26-30 July 2009