Doubt regarding the example 'Emergency Diesel-Generator and Asynchronous Motor'
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In the matlab example below,
Here, load flow conditions are initialised, how do we calculate the output power, will it be the same as mentioned in the parameter data in the block of synchronous machine and motor. I basically need a generator and motor system in islanded mode with steady output and frequency. Does the generator output change in grid connected and islanded mode of operation.?
Kindly advice ,
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Ayush Gupta
2023-10-12
Hi NN,
In the MATLAB example you provided, the load flow conditions are initialized using the Powergui block in Simulink. The output power of the generator can be calculated based on the parameters specified in the synchronous machine and motor blocks.
To calculate the output power, you need to consider the mechanical power input to the generator and the losses within the system. The mechanical power input is typically provided as an input to the synchronous machine block. The losses include mechanical losses, electrical losses, and any other losses in the system.
The parameter data specified in the synchronous machine and motor blocks provide the necessary information to calculate the output power. These parameters include the machine ratings, efficiency, and power factor.
In the case of a generator and motor system in islanded mode with steady output and frequency, the generator output power can be controlled by adjusting the mechanical power input. By setting the mechanical power input to a constant value, you can achieve a steady output power and frequency.
In a grid-connected mode of operation, the generator output power is typically controlled by a power grid or utility. The generator adjusts its output power to match the grid requirements, which may vary based on the load demand.
In summary, the generator output power can be calculated based on the mechanical power input and system losses. The output power can be controlled to achieve a steady output in both islanded and grid-connected modes, but the control mechanism and power requirements may differ between the two modes.
Hope it helps!
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