Mathematical modeling of transient processes of HPPs, PSPPs and PSs

The practice of participation in projects, competition in the market for design services indicate an increase in the requirements for the validity, reliability and economic efficiency of design decisions, which puts forward the study of transients of hydroelectric power stations, pumped storage power plants and large pumping stations (including pumping stations for technical water supply to thermal and nuclear power plants) as relevant.

Transient processes have a decisive influence on the composition and design parameters of the pressure systems of derivational HPPs and PSPPs, as well as determine the nature of the change in the plant’s power, which is necessary to assess the regulatory capabilities of HPPs in the power system.

The correct estimation of transients at the design stage is especially important. The design solutions should ensure the operability of the water supply system and equipment in all situations arising during operation. Practice shows that the only reliable means for solving this problem is the use of mathematical models describing the operation of the projected station in transient processes.


The programs for the calculation of the transient processes of the diversion HPPs (and separately for the PSPP) with branched pressure pipe systems, presure relief valves, upstream and downstream surge tanks allow investigating transients in the pressure system, hydraulic machine, automatic control system of the units and station level, and the isolated power system.

All programs have been verified by the results of numerous field tests.

The programs can be transformed into computer models of specific HPPs and PSPPs for use in the automatic control subsystems.

In more detail about our programs in the menu of the Program

Our programs use:

Hidroing  d.o.o.


Kolektor Turboinštitut d.o.o.

PJSC “Power machines – LMZ”

JSC “Tyazhmash”

Field testing of hydraulic units of hydroelectric power stations and pump stations

Field testing of the HPP and pump station units in steady-state conditions and during transient processes remains one of the main activities of the White Coal LLC. Tests are carried out to calibrate flowmeters in absolute ways, determining the efficiency, power consumption and performance characteristics of the units, the power characteristics of the directing device, to optimize the settings of the turbine regulators and group control systems.


Name in English:

White Coal LLC

Name in Russian:

OOO ‘Bely ugol’

Legal address:

115093, 12, B. Serpukhovskaya Str. 60, Moscow

Mailing address:

115093, Moscow-93, PO box 31