Sustainable Energy Systems with HVDC Transmission

Abstract

Power generation using conventional resources like coal, natural gas etc. is well accepted over the years and mostly preferred for large capacity plants. Due to various environmental concerns like global warming and depleting fossil fuels, it has become necessary not only to upgrade our technology but to explore renewable resources like wind, small hydro, solar for generation of electricity. The renewable resources are available in abundance and their usage can be advantageous to supply various consumers and especially during peak demand. Availability of renewable resources at large distant locations suggests their integration through grid for better exploration. For low capacity renewable resources, the HVDC link can be utilized for their integration with grid. In this work, mathematical modeling and simulation of various sources like PV, hydro, wind, diesel and thermal generators have been carried out. Also, the modeling of a monopolar HVDC transmission line has been derived and implemented in MATLAB Simulink environment. Every generator is integrated through independent HVDC link and the respective output is brought to a common grid individually. The performance of the system is studied with individual resource and transmission line connected to the grid and with all the generating resources feeding their energy to the grid collectively.