US 12,334,731 B2
Method for evaluating photovoltaic energy production and evaluation and management unit implementing the method
Valérick Cassagne, Limours (FR); and Mohammed Chiguer, Gif sur Yvette (FR)
Assigned to TOTAL RENEWABLES, Courbevoie (FR)
Appl. No. 17/602,640
Filed by TOTAL RENEWABLES, Courbevoie (FR)
PCT Filed Apr. 10, 2020, PCT No. PCT/EP2020/060337
§ 371(c)(1), (2) Date Dec. 3, 2021,
PCT Pub. No. WO2020/208237, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. 1903902 (FR), filed on Apr. 11, 2019.
Prior Publication US 2022/0166217 A1, May 26, 2022
Int. Cl. H02J 3/00 (2006.01); H02J 3/38 (2006.01); H02S 50/10 (2014.01)
CPC H02J 3/004 (2020.01) [H02J 3/381 (2013.01); H02S 50/10 (2014.12); H02J 2300/26 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A method for controlling a local electrical network comprising an energy supply facility comprising at least one electricity production unit having at least one photovoltaic module and one or more electrical device(s), electrical energy storage unit(s), thermodymanic generator(s), or connection(s) to public electrical network(s), or combinations thereof, the method comprising:
determining predictive irradiance values for the site on which the energy supply facility is installed, the determination being carried out for time intervals of between one second and two days;
evaluating the photovoltaic power generated as a function of the determined predictive irradiance values and numerical values prerecorded in a database, this database including, for each day of the year and different times of each day, prerecorded numerical values for determining the photovoltaic electrical power generated as a function of the irradiance; and
reducing electrical consumption of an electrical device, drawing electrical energy from a storage unit, starting one or more thermoelectric generators, drawing electrical energy from the public network, or combinations thereof, if energy demand is greater than the photovoltaic power generated as a function of the determined predictive irradiance values and numerical values prerecorded in a database for a future time interval; or
storing electrical energy in a storage unit, stopping one or more thermoelectric generators, injecting electrical energy into the public network, or combinations thereof, if energy demand is less than the photovoltaic power generated as a function of the determined predictive irradiance values and numerical values prerecorded in a database for a future time interval;
wherein the database comprises for each moment contained in the database electrical power values generated as a function of different levels of irradiance, the levels of irradiance ranging between 0 and 1300 W/m2, in particular by increments of 10 W/m2; and
wherein the numerical values prerecorded in the database correspond to coefficients of a mathematical function describing values of electrical power generated as a function of irradiance.