TY - JOUR VL - 24 EP - 1281 PB - Elsevier A1 - Zanon, Mario A1 - Gros, Sébastien A1 - Diehl, Moritz SP - 1273 ID - eprints4018 TI - Indefinite linear MPC and approximated economic MPC for nonlinear systems AV - restricted KW - Economic MPC; LQR; Stability theory for MPC UR - http://doi.org/10.1016/j.jprocont.2014.04.023 IS - 8 SN - 0959-1524 Y1 - 2014/// N2 - The stability proof for economic model predictive control (MPC) relies on strict dissipativity, which is in general hard to check. In this contribution, we will first analyze the linear quadratic case with possibly indefinite cost. The conditions for stability will be recalled and it will be shown that every stabilizing LQR/MPC has an equivalent positive definite LQR/MPC which yields the same open loop and closed loop behavior. This analysis will then be used to formulate an approximated nonlinear economic MPC scheme, which has stability guarantees. An example will be used to illustrate the proposed technique and show its potential in terms of performance. JF - Journal of Process Control ER -