ENERGY SAVING BASED ON ENHANCEMENT OF HYDRAULIC UNIT EFFICIENCY WITH ITS WORK AT VARIABLE SPEED

Authors

  • Stanislav Fedorovych Artiukh Національний технічний університет «Харківський політехнічний інститут», Ukraine
  • Ihor Ivanovych Chervonenko Національний технічний університет «Харківський політехнічний інститут», Ukraine https://orcid.org/0000-0002-3856-4966

DOI:

https://doi.org/10.20535/1813-5420.2.2014.131777

Keywords:

electric power system, pump-storage plant, hydroturbine, efficiency, asynchronized generator, automatic control system, variable speed

Abstract

The article describes the background and the ways of pump-storage plant power equipment efficiency upgrading and, as a consequence, reduction due to this energy carriers consumption. Particularly the question is consider in depth how to upgrade efficiency of HEP and PSP operating equipment due to it work with non-synchronous rate of rotation. On an example of Francis turbine installed on the Dniester PSP the possibility of increasing the efficiency of their work both in turbine and pump modes was shown. For this purpose, based on universal turbines characteristic, new value of hydroelectric unit optimum efficiency were determined on condition that aggregate rate of rotation will change along with changes in source pressure. The most rational electrical power unit structure was proposed, which should include Francis turbine and asynchronized synchronous generator which will provide a stable and reliable transmission of power from the tires station that would meet all the requirements for power quality. The article describes the structure of a new automatic control system that will allow hydraulic turbines operate with optimal parameters in non-synchronous speeds and ensure the required quality control during dynamic processes.

References

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Issue

Section

TECHIQUE