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Question

A 183-bus power system has 150 PQ buses and 32 PV buses. In the general case, to obtain the load flow solution using Newton-Raphson method in polar co-ordinates, the minimum number of simultaneous equations to be solved is
  1. 332

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Solution

The correct option is A 332
n=183
No. of equations =2nm2

=2×183322=332

where, n= total number of buses

m=PV bus or reactive power support bus excluding slack bus.
One bus already has taken as stack bus.

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