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How to draw capability diagram of synchronous generator using matlab?

  • Answer:

    The Capability Diagram <center> </center> <center> </center> Normally, the generator meets all the voltage and frequency requirements of the grid. This can be achieved with two closed -loop controllers Change of excitation current of the rotor or as so called the AVR change of fuel supply to the turbine or as so called the GOVERNER But in order to prevent damages caused by high temperature or asynchronous operation, several limitations and design criteria are installed to determine the operating zone of the generator These limitations are: excitation current (rotor current ) limitation Stator current limitation load angle( not the power factor) limitation According to these limitations, the designers of the generator draw the capability curve at certain cold air temperature A circle with the radius of the maximum excitation current limitation, another circle with maximum stator current. The point where these two circles intersect is called the "Design point" of the generator.

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