As i want to add the simulink model of PMU to my simulation but From where I can get the PMU simulink model?or from and how I construct the simulink model of PMU in MATLAB?
There is no specific block for PMU in Simulink. However, you can use voltage measurement or current measurement blocks and specify the output format of those blocks to your preference i.e. Real-Imag or Mag-Ang. PMU will give similar output. When used inside simulink environment you can make use of the outputs as your PMU data. You can use the rate transition to match you PMU data streaming speed.
As Mr. NIK said above that u can use simple VI Measurement block and do it from that. This I am telling that this not working on real time but in MATLAB it can be designed Which performs real time simulation n
You can create your own PMU block in Simulink. A very simple one would be by taking time domain current and voltage measurements, doing a sliding window DFT of the time domain signals (window length 20 ms for 50 Hz) and getting the phasors for the 3 phase ABC signals. In the final step you can derive the positive sequence phasors from the ABC phasors. You can also add an anti-aliasing filter as a further enhancement to your PMU block. Matlab already has filter functions like butter, filter, etc, available. Make use of the Matlab function block inside Simulink to write all the codes.