Actual potential of the maneuvering power of the Ukrainian CHP with introduced electrothermal regulators

Derii V.O., Cand. Sci. (Eng.), Senior Researcher, Levchuk A.P., Cand. Sci. (Eng.)
Institute of General Energy of the National Academy of Sciences of Ukraine, 172 Antonovycha St., Kyiv, 03680, Ukraine
Language: Ukrainian
Source: Problemy zahal`noi enerhetyky - The Problems of General Energy, 2016, 3(46):19-27
Section: Optimization of the development and management of the functioning of energy systems
UDC: 621.311., 661.51
Received: 06.09.2016
Published: 28.09.2016
Abstract: One of the sharp problems of the United Power System of Ukraine is the shortage of maneuvering power. It is particularly significant during the "night dip" of the electrical load diagram and results in the forced stop of 200-300 MW coal power units, which are used for regulation. This mode of operation of the coal power units reduces their lifetime and leads to overstated fuel consumption and increase in the expenditures for their operation, current and capital repairs. According to different estimates, this practice causes total losses of 2.2 billion UAH year.
We propose an approach to increasing the maneuvering power for the United Power System of Ukraine by using electrothermal regulators (ETR) at our CHP. A result of performed, investigations, we identified large Ukrainian CHP, which are most promising for the provision of system services. As ETR, we propose to use electric boilers and heat pumps. We analyzed three options for the implementation of ETR at CHP. For each option, we determined the potential of maneuvering power and the parameters of efficiency with regard for the actual heat loads. We also discuss possible variants of including ETR into the technological scheme of CHP. It is shown that the actual technical potential of maneuvering power of the Ukrainian CHP, working for the whole year, is 763.7 MW.
Keywords: United Power System, CHP, electrothermal regulators, electric boilers, heat pumps, maneuvering power, balance, heat, electricity.
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