Impacts and Contributions of Ethanol and Sugar Cane Industry Distributed Generation in the Electrical Energy Quality and Power Systems Transients

摘要

The deregulation of the energy matrix, as evidenced in several countries, together with the need to have renewable energy sources in the system, contributes to the widespread installation of energy auto-producers in the electrical system. However, a number of factors, not less important, as the instability in energy prices, high costs of expansion of conventional electricity generation, the emerging of new environmental policies and incentive to the use of renewable sources such as the Program for the Incentive of Alternative Energy Sources-PROINFA in Brazil resulted in the promotion and the increase in the number of generating units from sugarcane plants interconnected to the mains. Nevertheless, a series of technical operating issues, in order to ensure the excellence of the mains power, and system integrity, concerns the independent producer and the larger network when analyzing the parallelism through contingency situations. Such analysis under the assumption of contingencies need to be clarified and better discussed in the light of current Standards taking in consideration the results obtained from computer models able to portrait reliably the cogeneration system.