Showing papers by "Juan Manuel Campos Carrasco published in 2015"
10 Jun 2015
TL;DR: In this article, a new fast peak current control technique is proposed to control the peak current magnitude to avoid undesirable disconnection of the distributed generator in a fault state and improve the life-expectancy of the converter.
Abstract: Power converters are the basic unit for transient voltage fault ride through capability for most renewable distributed generators. When a transient fault happens, the grid voltage will drop suddenly, and probably, will also suffer a phase-jump event also. State of the art voltage fault control techniques regulate the current injected during the grid fault. However, the beginning of the fault could be too fast for the inner currents control loops of the inverter, and transient over-current would be expected. In order to avoid excessive peak current of methods presented in the literature, a new fast peak current control technique is proposed. Controlling the peak current magnitude avoids undesirable disconnection of the distributed generator in a fault state and improves the life-expectancy of the converter. Experimental and simulation tests with high power converters provide detailed behaviour of the method with excellent results.
4 citations
01 Nov 2015
TL;DR: The proposed motor and EV powertrain design consists of redundant motor and power converter, improving security and safety of the overall system and a prototype has been built to verify the motor design and the high efficiency of the SynRM based EV.
Abstract: A doubly three-phase fed synchronous reluctance machine (SynRM) using a full integrated H-bridge power converter topology for each phase is designed for electrical vehicle (EV) powertrain applications. The proposed motor and EV powertrain design consists of redundant motor and power converter, improving security and safety of the overall system. The main objective of this SynRM is to be able to provide instantaneous power and high power density, high torque at low speeds and high power at high speeds, wide speed range, high efficiency over its entire operating range, high efficiency regenerative braking, robustness reliability, high safety and security system at reasonable cost. Under these requirements a 60 kW, 9000 r.p.m. and 400 N.m. SynRM prototype has been designed. The SynRM powertrain thermal design is verified using finite difference method and by Solidworks flow simulation software. A prototype has been built to verify the motor design and the high efficiency of the SynRM based EV.
3 citations