Paul W Harper

A photovoltaic panel modelling method for flexible implementation in Matlab/Simulink using datasheet quantities

This paper presents a detailed method for creating an embedded Matlab model in Simulink for any solar photovoltaic panel starting with its datasheet values. It links extrinsic functions to the Simulink embedded model to provide fast and simple iterative solving of non-linear equations. It also provides a method sufficiently flexible to produce a model output based on panel current or voltage such that it can be cascaded with different Simulink elements.

Advanced fibre-reinforced composites for marine renewable energy devices

Abstract This chapter discusses the applications and challenges for glass and carbon fibre composites in marine renewable energy devices. It uses a tidal turbine blade as a case study, describing the nature of the operating environment and resulting loads, the structural design process, material selection, manufacturing techniques and structural health monitoring. The chapter also discusses ongoing research in areas such as the development of new materials, which are better able to cope with high-cycle fatigue loads in marine environments, and improved structural design techniques.

Composite Materials in Tidal Energy Blades

Composite materials are the natural choice for the construction of tidal energy blades; their high strength, good environmental resistance and the ease with which they may be used to form complex shapes means that they are well suited to the application. The design of MW-scale tidal energy blades has evolved over a number of years, keeping step with the requirements of turbine developers as their emphasis shifts from prototyping to production. In parallel, it has been necessary to develop a rigorous approach to materials testing and qualification. The specifics of the blade structure and the operational environment mean that it has been necessary to solve a number of complications that arise during such a qualification programme. These issues are discussed and efforts to mitigate their consequences are explained. Although this chapter is written particularly with tidal energy blades in mind, much of the content will be applicable to a wide range of other applications where composite materials are used in the marine environment.