Control de movimiento y monitorización de la temperatura en una máquina síncrona de imanes permanentes (PMSM)

Abstract

Nowadays, electric machines are responsible for more than 50% of the global elec- tricity consumption, as they are notable for their high power density and efficiency, good dynamic performance and controllability. This makes electric machines a suit- able option for key sectors as the automotive or wind generation ones. The use of permanent magnet synchronous machines (PMSMs) has been sustainedly increasing during the last decades due to their superior performance compared with other types of electric machines in terms of power density, speed range or dynamic response. Most of PMSMs today are three-phase. Nevertheless the design of multi-phase PMSMs can provide several advantages. Above all, their fault-tolerant capability makes multi- phase machines a very attractive option for applications in which high reliability is required, like aviation, aerospace or marine applications. Open-phase faults due to a failure in a power electronic device are the most common ones. Fault-tolerant oper- ation can be achieved by applying a modified fault-tolerant control (FTC) strategy after the fault occurs. Several FTC methods present in literature are described in this document. The different strategies are more or less convenient depending on the multi-phase machine configuration: non-three-phase series machines, non-multi three-phase machines or multi three-phase machines. In the present Master Thesis a novel fault-tolerant control strategy is proposed. This strategy is based on distin- guishing two three-phase sets in a six-phase IPMSM so that when a fault occurs in one of the three-phase sets, the healthy one can compensate it.