Abstract
The policy of restructuring the generating capacities of the energy system of the Republic of Belarus assumes the introduction of the the Belarusian nuclear power plant (NPP) in the coming years. The presence of external and internal factors affecting the sale of electricity from NPP will require solving a number of problems, including power redundancy and frequency control through involvement of internal power generating facilities. These include steam-turbine state power plants and combined heat and power plants (CHPP), combined-cycle power units, special mobile electric power units, the commissioning of electric boilers and accumulator tanks. The latter is a new technical solution for the Belarusian energy system that requires careful analysis to identify the optimal system for coordinated operation of co-generation power units with electric boilers and accumulator tanks. At the same time, the heating and non-heating seasons of the CHPP operation are considered. The function of the accumulator tanks with minimum and maximum power consumption is shown. At charging of the accumulator tanks, the generation of electricity by co-generation power units with thermal regulation is increased. The operation of electric boilers and accumulator tanks is considered through the example of Grodno CHPP-2. The expediency of including electric boilers in the scheme of the CHPP as the most effective means of using co-generation turbine units in the cycling mode with unloading them by electric power during the night hours is determined, which ensures the maximum reduction of the electric power output to the power system from the Belarusian NPP.A similar approach at other industrial CHPP of the power system will, to some extent, ensure stable power supply from the Belarusian NPP. Reconstruction of the CHPP with installation of accumulator tanks will make it possible to create a flexible heat supply scheme for consumers in the conditions of night electrical unloading when the NPP power units are put into operation.
Highlights
The policy of restructuring the generating capacities of the energy system of the Republic of Belarus assumes the introduction of the the Belarusian nuclear power plant (NPP) in the coming years
These include steam-turbine state power plants and combined heat and power plants (CHPP), combined-cycle power units, special mobile electric power units, the commissioning of electric boilers and accumulator tanks. The latter is a new technical solution for the Belarusian energy system that requires careful analysis to identify the optimal system for coordinated operation of co-generation power units with electric boilers and accumulator tanks
The operation of electric boilers and accumulator tanks is considered through the example of Grodno CHPP-2
Summary
Определена целесообразность включения в тепловую схему ТЭЦ электрокотлов как наиболее действенного средства использования теплофикационных турбоагрегатов в маневренном режиме с разгрузкой их по электрической мощности в ночные часы, что обеспечивает максимальное снижение выдачи электрической мощности в энергосистему электроэнергии от Белорусской АЭС. В ночное время отопительного периода при разгрузке ТЭЦ вынужденно включаются котлы прямого сжигания топлива для обеспечения тепловой энергией потребителей.
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