WCPDE

The program is designed for the calculation of transient processes at HPPs with branched pressure systems, surge tank and hydroelectric units with Pelton turbines.

The program allows you to calculate the pressure systems of HPPs of almost any configuration. It is envisaged that two different types of Pelton turbines can operate simultaneously at the HPP. The computer model includes an automatic control system, and an isolated power system.

Initial window of the program WCPDE
Initial window of the program WCPDE

Capabilities:

  • Two types of Pelton turbines;
  • Main conduit;
  • Up to 10 penstocks;
  • Upstream surge tank;
  • Regulation according to the law of changing the opening of the needle and cutter or by the turbine governor;
  • Transient processes:
    • put in operation;
    • load changing;
    • pull up the unit;
    • load rejection;
    • frequency control in isolated power system.

Examples of calculation results

Load rejection 2 x 4.5 MW with disconnection of the units from the network. According to operation of governor
Load rejection 2 x 4.5 MW with disconnection of the units from the network. According to operation of governor
Load rejection 2 x 4.5 MW with disconnection of the units from the network. According to operation to Ycutter=f(t) and Yneedle=f(t)
Load rejection 2 x 4.5 MW with disconnection of the units from the network. According to operation to Ycutter=f(t) and Yneedle=f(t)
Dumping of 1 MW of consumer load from 9.0 MW to 8.0 MW. The initial capacity of the HPP units is 4.5 + 4.5 MW. According to operation of governor
Frequency control in isolated power system. Dumping of 1 MW of consumer load from 9.0 MW to 8.0 MW. The initial capacity of the HPP units is 4.5 + 4.5 MW. According to operation of governor
Dumping of 2 MW of consumer load from 9.0 MW to 7.0 MW. The initial capacity of the HPP units is 4.5 + 4.5 MW. According to operation of governor
Frequency control in isolated power system. Dumping of 2 MW of consumer load from 9.0 MW to 7.0 MW. The initial capacity of the HPP units is 4.5 + 4.5 MW. According to operation of governor
Surge of 1 MW of consumer load from 8 to 9 MW. The initial capacity of the HPP units is 4.0 + 4.0 MW. According to operation of governor
Frequency control in isolated power system. Surge of 1 MW of consumer load from 8 to 9 MW. The initial capacity of the HPP units is 4.0 + 4.0 MW. According to operation of governor
Needle break in one nozzle. The initial capacity of the HPP units is 4.5 + 0.0 MW. According to operation to Ycutter=f(t) and Yneedle=f(t)
Needle break in one nozzle. The initial capacity of the HPP units is 4.5 + 0.0 MW. According to operation to Ycutter=f(t) and Yneedle=f(t)