Economic predictive control for isolated microgrids based on real world demand/renewable energy data and forecast errors

• Published in: Renewable energy 2022-07, Vol.194, p.647-658
• Main Authors: Manzano, J.M., Salvador, J.R., Romaine, J.B., Alvarado-Barrios, L.
• Format: Article
• Language: English
• Subjects: Economic dispatch; Forecast mismatch; Microgrid; Predictive control; Real data
• ISSN: 0960-1481; 1879-0682
• DOI: 10.1016/j.renene.2022.05.103

In this work, the operation of microgrids is studied, using real data for demand and renewable energy sources. A mixed integer nonlinear program to operate the microgrid is proposed, following a model predictive control methodology, which allows to enhance the economic performance by means of a predictive strategy. A comparison with other techniques without predictive feature nor forecast mismatches is made, showing that our method outperforms them by adapting the current control decision to future costly issues. The case study shows savings of more than 10%, analysing the qualitative aspects of the proposed strategy. •A MINLP problem is solved in an MPC with real data.•The inclusion of a prediction horizon is an immediate advantage, decreasing overall production costs.•Real-time two-stage MPC allows for an adequate adaptation to the real circumstances.•The real-time economic dispatch yields savings up to 10%.