.LEPSE.Examples.three_maschine_scheme

Information

This scheme is widely used in Peter the Great St. Petersburg Polytechnic university as a part for bachelor's degree thesis last chapter, which is dedicated to dynamic stability investigarion.

Each node of this scheme has a short circuit shunt, which allows to simulate different types of short circuit.

The main purpose of this scheme is to show and teach the students the main ways to increase the degree of dynamic stability, which can be expressed in limit short circuit time.

Specifically in this scheme the scenario is as follows:

0 s: start;

50 s: three-phase short-circuit in node_7;

50.2 s: end of short-circuit, disconnection of L1;

50.4 s: reduction of the G1 power plant active power generation;

50.5 s: automatic reclosing of L1;

65 s: three-phase short-circuit in node_2;

65.1 s: start of fast G2 turbine valving control;

65.15 s: end of short circuit;

65.3 s: end of G2 fast turbine valving control

80 s: end.