Tag Archives | Stability

Improving Transient Stability | Power System | Electrical Engineering

Transient stability can be improved either by using machines of higher inertia or by connecting the synchronous motors to heavy flywheels. This method, however, cannot be used in practice because of economic reasons and reasons of excessive rotor weight. On contrary, the modern trend in generator design is to achieve more power from smaller machines and hence lighter rotors. Improved [...]

By |2017-08-22T10:10:14+05:30August 22, 2017|Power System|Comments Off on Improving Transient Stability | Power System | Electrical Engineering

Solution of Swing Equation | Power System | Electrical Engineering

Numerical Solution of Swing Equation There are several sophisticated methods for solving the swing equation. The step-by-step or point-by-point method is conventional, approximate but well tried and proven method. This method determines the changes in the rotor angular position during a short interval of time. Consider the swing equation: The solution δ(t) is obtained at discrete intervals of time with [...]

By |2017-08-22T10:10:12+05:30August 22, 2017|Power System|Comments Off on Solution of Swing Equation | Power System | Electrical Engineering

Equal Area Criterion of Stability | Power System | Electrical Engineering

For one machine system and infinite bus-bars a method known as 'equal area criterion of stability' is employed. The use of this method eliminates partially or wholly the calculations of swing curves and thus saves a considerable amount of work. The method is applicable to any two machine system. This method is not applicable to multi-machine system directly. The principle [...]

By |2017-08-22T10:10:11+05:30August 22, 2017|Power System|Comments Off on Equal Area Criterion of Stability | Power System | Electrical Engineering
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