Combined cold heat and power supply microgrid multi-objective dynamic optimal operation method
A technology of combined cooling, heating and power supply and dynamic optimization, applied in the field of microgrids, can solve the problems of no time period for load shifting in/out, insufficient research on load side controllability, and limited achievability of dispatching results, etc., to achieve Effects of increasing scheduling results, improving power supply reliability and energy utilization, and improving flexibility
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[0125] This article selects figure 2 The cooling, heating and power cogeneration microgrid shown is running in the grid-connected state, the dispatching period is one day, and the unit dispatching time Δt is one hour. The predicted power of photovoltaic power generation, wind power generation, electric load, heat (cold) load and real-time electricity price in typical summer days are as follows: image 3 shown. In order to ensure the efficient utilization of energy, all the waste heat flue gas from the micro gas turbine is supplied to the lithium bromide absorption chiller and hot water unit. The rated output power of the micro gas turbine is 60kW, the minimum starting power is 18kW, the power generation efficiency is 0.3, the heat dissipation loss coefficient is 0.16, the fuel is natural gas, and its calorific value is 9.7kW·h / m 3 , the price is 3.3 yuan / m 3 ; The cooling performance coefficient of the lithium bromide absorption cooling and heating unit is 1.2, and the hea...
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