A comparative study of MPPT strategies and a novel singlephase integrated buck-boost inverter for small wind energy conversion systems

This paper presents the analysis of some usual MPPT (Maximum Power Point Tracking) strategies intended for small wind energy conversion (up to 1kW) based on permanent magnet synchronous generators (PMSG), considering the stand-alone application for a novel buck-boost integrated inverter. Each MPPT method is analytically introduced and then it is simulated using MatLab/Simulink considering standard conditions of wind and also commercially available turbines and generators. The extracted power in each case is compared with the maximum available power, so the tracking factor is calculated for each method. Thus, the focus is on the application to improve the efficiency of stand-alone wind energy conversion systems (WECS) with battery chargers and AC load supplied by inverter. Therefore, for this purpose a novel single phase buck-boost integrated inverter is introduced. Finally, the main experimental results for the introduced inverter are presented. © 2011 IEEE.

Integration in new product development: Case study in a large Brazilian high-technology company

Proficiency in management activities undertaken in product development processes is regarded as a key competitive advantage for companies, particularly for high-tech industrial firms, which benefit from the important competitiveness factor of launching products with a differentiated technological content. This paper's objective was to identify, through case study, practices for integration between the roles of R & D with others involved in product development in a large Brazilian company of industrial automation. The results suggest some management practices to improve the integration in new products development, such as the use of employees from marketing with knowledge and experience previously gained from R & D activities and uses the heavyweight product manager to solve synchronization problems between product and technology development. © Universidad Alberto Hurtado, Facultad de Economía y Negocios.

An examination of the Chile-Mexico agreement: a viable form of integration?

Includes bibliography

Política agropecuaria subregional en los países signatarios del Pacto Andino = Agricultural policy in the countries signatory to the Andean subregional integration programme

Incluye Bibliografía

Algunas conclusiones relativas a la integración, la industrialización y el desarrollo económico de América Latina = Some conclusions on integration, industrialization and economic development in Latin America

Incluye Bibliografía

Ampliación del proceso de integración del Caribe = Widening of the Caribbean integration process

Incluye Bibliografía

Options for regional integration

Includes bibliography

A new integration strategy

Postula que es indispensable comenzar a considerar una nueva estrategia de integración: la integración hacia afuera, que consiste en hacer funcional al objetivo de enfrentar los mercados externos, todo el proceso de negociaciones de desgravación intrarregional, de aproximaciones al arancel externo común y de coordinación de políticas económicas.

Integration trends in the Brazilian labour market

Includes bibliography

On Argentine-Brazilian economic integration

Includes bibliography

Latin American integration and external openness

Includes bibliography