HIGH CAPACITY TIDAL POWER PLANT UTILIZATION FOR ELECTRIC POWER PRODUCTION IN THE UNIFIED POWER SYSTEM OF RUSSIA

摘要

According to the long term prospects it is assumed to build Mezen Tidal Power Plant in the North of the European part of Russia in the Mezen Gulf of the White Sea (to the North- East from Arkhanghelsk town). Mezen Tidal Power Plant, based on the up-to-date conceptions, has to be of extraordinary high installed capacity (8000-12000 MW). It requires a construction of unique hydroengineering installations in the sea, at a distance from the coast. The schedule of power distribution to the Tidal Power Plant consumers is exceptionally unfavourable for the consumers: the Tidal Power Plant operates in an impulse periodic mode. Every day the operating peaks shift in time approximately by 50 minutes. The largest period of capacity variationis is 28 days. Power generation of any month is identical and is constant from year to year. The Tidal Power Plant operation mode can be forecasted reliably for any prospective period. The capacity of Mezen Tidal Power Plant having a single-basin scheme of arrangement, is mainly duplicating, and if it is constructed, it won't allow to reduce considerably the startup of new generating capacities at the sites of other power plants. Large capacity and total electric power generation by Mezen Tidal Power Plant make it reasonable to consider a possibility and conditions of its utilization within the scope of a large power pool of the UPS of Russia European part. The analysis carried out has shown that Mezen Tidal Power Plant utilization is possible under conditions of hydroelectric pumped storage plant (PSP) construction for a Tidal Power Plant – PSP system and purposeful changing of the generation mix structure, otherwise the power system can not accept and efficiently utilize the power of Tidal Power Plant in a full scope. The optimum way of Tidal Power Plant efficient electric power utilization, from 24 Hours' and intra-24-hours' view point, is a creation of Tidal Power Plant + PSP Complex. For a transmission of electric power generated by Tidal Power Plant to the UPS network it may be worth while to construct +500 kV or +750 kV DC bipolar power transmission lines with appropriate substatations in a large power pool, in those locations where high loads are concentrated and there is a developed backbone network of high transmission capacity.