Iterative learning control in prosumer-based microgrids with hierarchical control. Issue 2 (2020)

• Record Type: Journal Article
• Authors: Strenge, Lia; Jing, Xiaohan; Boersma, Ruth; Schultz, Paul; Hellmann, Frank; Kurths, Jürgen; Raisch, Jörg; Seel, Thomas
• Is Part Of: IFAC-PapersOnLine. Volume 53:Issue 2(2020)
• Page Start: 12251
• Page End: 12258
• Publication Date: 2020
• Subjects: control of power systems -- control of distributed systems -- control of large-scale systems -- networks -- iterative learning control -- convergence analysis -- nonlinear systems; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2020.12.1145
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: Power systems are subject to fundamental changes due to the increasing infeed of renewable energy sources. Taking the accompanying decentralization of power generation into account, the concept of prosumer-based microgrids gives the opportunity to rethink structuring and operation of power systems from scratch. In a prosumer-based microgrid, each power grid node can feed energy into the grid and draw energy from the grid. The concept allows for spatial aggregation such that also an interaction between microgrids can be represented as a prosumer-based microgrid. The contribution of this work is threefold: (i) we propose a decentralized hierarchical control approach in a network including different time scales, (ii) we use iterative learning control to compensate periodic demand patterns and save lower-layer control energy and (iii) we assure asymptotic stability and monotonic convergence in the iteration domain for the linearized dynamics and validate the performance by simulating the nonlinear dynamics.