Method and device for optimized energy management

摘要

A method for optimized energy management of an electrical system is provided for protecting a component to be protected of the electrical system. The power dissipation of at least one component to be protected is determined, the expected temperature increase is calculated using a thermal model. An estimated end temperature is determined using the expected temperature increase and an ambient temperature. The estimated end temperature is compared with a predefined temperature threshold value. Consumer loads are switched on or off depending on their priority. A device for carrying out the method is provided. The device includes a power meter, calculation unit storage unit, and switching unit for switching consumer loads The electrical system to which the device is assigned includes at least one consumer load and at least one component to be protected.

主权项

1. A method for optimized energy management of an electrical system, comprising:
pre-calculating a future course of a temperature of at least one component to be protected using a thermal model to determine an estimated end temperature TEst to be expected by
determining power dissipation PDiss of the at least one component to be protected of the electrical system;inputting the power dissipation PDiss into the thermal model of the at least one component to be protected;calculating a future temperature increase ΔT to be expected of the at least one component to be protected using the power dissipation PDiss and the thermal model;calculating the estimated end temperature TEst to be expected based on the future temperature increase to be expected ΔT and an ambient temperature TL;comparing the estimated end temperature TEst to be expected with a predefined temperature threshold value TMax; disconnecting a consumer load from a mains depending on the consumer load's priority when the estimated end temperature TEst to be expected of the at least one component to be protected would result in a temperature of the at least one component to be protected to exceed a predefined temperature threshold value TMax; and connecting a consumer load to the mains depending on the consumer load's priority when, based on the estimated end temperature TEst to be expected of the at least one component to be protected, the temperature of the at least one component to be protected would fall below the predefined temperature threshold value TMax.