A method for maximizing and reducing peak-to-valley difference in coordination between electric heat storage load and battery energy storage
A technology of battery energy storage and electric heat storage, which is applied in the field of power grid, can solve the problems of large fluctuations and intensified peak-shaving capacity of traditional thermal power units, so as to reduce the peak-to-valley difference, reduce the peak-to-valley difference, and reduce the peak-shaving pressure Effect
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[0162] The current temperature in a certain regional power grid is c j = 35 degrees Celsius; air relative humidity H j = 46%; the altitude value of the battery energy storage area h = 867m; the weather state correlation coefficient value is based on experience k r = 1.0147; k c =0.9915; material thermal conductivity ε of energy storage battery r =4.172W; battery energy storage temperature T B =27℃; battery capacity C r =10MW; battery charging efficiency η Ii =97.77%; battery discharge efficiency η Oi =98.79%; battery charging rate V BIi =2.3C / h; battery charging rate V BOi =2.1C / h; the sum of rated power of all power stations Q a =198MW; peak load Q yj =176MW; electricity load Q in low valley hours yd =69MW; average light intensity G=1043W / h; wind speed F=1.2m / s, electric heat storage load capacity in the grid is 47MW.
[0163] Step 1: Calculate the load capacity Q of electric heat storage load at the peak time according to the weather conditions 1 . Where lne=1, ...
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