Methodology for the quantification of the impact of weather forecasts in predictive simulation models

The use of Building Energy Models (BEM) has become widespread to reduce building energy consumption. Projection of the model in the future to know how different consumption strategies can be evaluated is one of the main applications of BEM. Many energy management optimization strategies can be used...

Descripción completa

Detalles Bibliográficos
Autores: Lucas-Segarra, E. (Eva)|||/items/7a195c32-e9ee-442c-8e11-e36092d30941, Du, H. (Hu)|||/items/180c5171-33a4-475d-b200-414f0584a3ba, Ramos-Ruiz, G. (Germán)|||/items/59e7c82d-0d16-4e0a-9395-6275c3cd1dda, Fernández-Bandera, C. (Carlos)|||/items/50cb7ce6-2624-471a-ac5d-2da4e4bc57bb
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad de Navarra
Repositorio:Dadun. Depósito Académico Digital de la Universidad de Navarra
Idioma:inglés
OAI Identifier:oai:dadun.unav.edu:10171/56815
Acceso en línea:https://hdl.handle.net/10171/56815
Access Level:acceso abierto
Palabra clave:Weather forecast uncertainty
Building energy mode
Building simulation
Energy flexible buildings
Model predictive control
Descripción
Sumario:The use of Building Energy Models (BEM) has become widespread to reduce building energy consumption. Projection of the model in the future to know how different consumption strategies can be evaluated is one of the main applications of BEM. Many energy management optimization strategies can be used and, among others, model predictive control (MPC) has become very popular nowadays. When using models for predicting the future, we have to assume certain errors that come from uncertainty parameters. One of these uncertainties is the weather forecast needed to predict the building behavior in the near future. This paper proposes a methodology for quantifying the impact of the error generated by the weather forecast in the building¿s indoor climate conditions and energy demand. The objective is to estimate the error introduced by the weather forecast in the load forecasting to have more precise predicted data. The methodology employed site-specific, near-future forecast weather data obtained through online open access Application Programming Interfaces (APIs). The weather forecast providers supply forecasts up to 10 days ahead of key weather parameters such as outdoor temperature, relative humidity, wind speed and wind direction. This approach uses calibrated EnergyPlus models to foresee the errors in the indoor thermal behavior and energy demand caused by the increasing day-ahead weather forecasts. A case study investigated the impact of using up to 7-day weather forecasts on...