COMPUTER-IMPLEMENTED METHOD, COMPUTER-IMPLEMENTED TOOL AND POWER PLANT CONTROL DEVICE FOR ENERGY BALANCING SOLAR POWER PLANTS AND A SOLAR POWER PLANT SYSTEM

• Main Authors: Mesanovic, Amer, Bamberger, Joachim, Szabo, Andrei
• Format: Patent
• Language: English; French; German
• Published: 22.05.2024
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

In order to energy balance solar power plants, by which energy losses of the solar power plants are determined and reliably quantified so that their impacts on energy outputs of the solar power plants could be reduced, it is proposed when for an energy accounting time period (EATP) of a solar power plant (SPP, INV, PVS, MDV), in which over a recording time "[t0 to tn]", regarding an irradiation (I) by measuring an irradiation measurement signal "I(t)" (IMS), a set of irradiation measurement values "I(t0)" to "I(tn)" (SIMV) and, regarding a generated power (P) by measuring a power production measurement signal "P(t)" (PPMS), a set of power production measurement values "P(t0)" to "P(tn)" (SPPMV) are collected (clt), to match (mtc) for the recording time "P(t)" to "I(t)" by using a curve matching algorithm (CMA) to identify (idf) based on the set (SPPMV) and the set (SIMV) at least one good matching time (GMT), run (rn) a fitting algorithm (FA, RLSFA) for the at least one good matching time and based regarding a "good matching time"-related part of the power production measurement signal "PGMT(t)" (PPMSGMT) on a subset of the set (SPPMV) and regarding a "good matching time"-related part of the irradiation measurement signal "IGMT(t)" (IMSGMT) on a subset of the set (SIMV) to generate (grt) according to an estimated power production measurement signal "Pest(t, K)" (PPMSest) defined as a function "f(I(t), K)", in which when running the fitting algorithm a deviation between "P(t)" and "Pest(t, K)" is minimized by tuning or changing the parameter set, calculate (clc) based on the different sets (SPPMV, SIMV, PMS) the "Pest(t, K)" in order to determine (dtm) a value for an energy loss (Eloss) by an integral calculation (ITC) of a power difference (PD) ∫PesttK−Ptdt.