Method for determining a preferential minimum power set point, method for controlling a plurality of water heaters and associated device

Abstract

A method for determining a preferential minimum power set point by a consumer i, said consumer including an electric water heater, the method including determining the state of the consumer i at an instant k; determining a minimum power set point Pcmin(i,k) at the instant k as a function of the state of the consumer i determined during the determining of the state of the consumer i at an instant k; determining a minimum power set point Pcmin(i,k+1:K) at the instants k+1 to K as a function of the predicted state of the consumer i estimated from the state of the consumer i determined during the determining of the state of the consumer i at an instant k; determining a preferential minimum power set point Pcmin_pref(i,k) as a function of the minimum power set point Pcmin(i,k) at the instant k and of the minimum power set point Pcmin(i,k+1:K) at the instants k+1 to K.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The technical field of the invention is that of driving of hot water consumption for the purpose of maximising renewable energy self-consumption. More particularly, the invention relates to a method for determining a preferential minimum power set point as well as a method for driving a plurality of water heaters on a network including a plurality of consumers i. It also relates to a device implementing such methods.TECHNOLOGICAL BACKGROUND OF THE INVENTION[0002]In the context of renewable energy production, for example using a photovoltaic panel, it is known to individually drive each facility so as to satisfy each consumer's demand while maximising the consumption of locally produced energy. However, it may be advantageous to manage production, no longer individually, but collectively by distributing locally produced energy between different consumers depending on needs. To do so, it is possible to complete the facility with batteries or any o...

AI Technical Summary

Benefits of technology

The invention provides a method for driving water heaters based on data from the production period, rather than relying on production predictions. This is achieved by determining the minimum power set point needed to achieve the desired output, based on the state of the consumer at the moment and the number of people associated with the consumer. The method does not require a production prediction, making it more efficient and accurate. The technical effect of the invention is to improve the efficiency and accuracy of driving water heaters based on data from the production period.

Problems solved by technology

Its advantage is to only necessitate few data, but it does not allow an optimum driving, that is a driving maximising consumption of the locally produced energy.

It is therefore based on predictions consisting of long data series throughout a production / consumption period (typically one day) which often have a significant error level resulting either in the consumer's dissatisfaction in terms of comfort and / or need, or in a sub-optimum driving.

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