MODELINGSIMULATIONOFCOMBINEDPEMFUELCELLAND.ppt

Tennesse Technological University MODELING/SIMULATION OF COMBINED PEM FUEL CELL AND MICROTURBINE DISTRIBUTED GENERATION PLANT Rekha .T. Jagaduri Department of Electrical and Computer Engineering Tennessee Technological University OUTLINE Overview of Distributed Generation Plant. Micro turbine as a DG. PEM Fuel Cell as a DG. Modeling of micro turbine. Modeling of fuel cell. Control Systems of micro turbine and fuel cell. Grid connected micro turbine and fuel cell. Simulation results. Conclusion. Future work. OVERVIEW OF A DISTRIBUTED GENERATION Distributed Generation (DG) is the use of small-scale power generation technologies located close to the load being served. It includes, for example, photovoltaic systems, fuel cells, natural gas engines, industrial turbines, micro turbines, energy-storage devices, wind turbines, and concentrating solar power collectors. These technologies can meet a variety of consumer energy needs including continuous power, backup power, remote power, and peak shaving. They can be installed directly on the consumer’s premise or located nearby in district energy systems, power parks, and mini-grids. ECONOMIC ADVANTAGES OF DG Economic advantages include one or more of the following: Load management Reliability Power quality Fuel flexibility Cogeneration Deferred or reduced TD investment or charge Increased distribution grid reliability/stability MICRO TURBINE AS A DG Micro turbine made its commercial debut in 1998. Micro turbines belongs to an emerging class of small-scale distributed power generation Basic components: compressor, combustor, turbine, and generator. Typically in the 30-400 kW size. MICRO TURBINE MODELING OF MICRO TURBINE Mechanical Equations: Electrical Equations: TWO AXIS MODEL OF A MICRO TURBINE Phasor diagram of Micro turbine MICRO TURBINE CONTROLS Overall block diagram of Micro turbine control FREQUENCY CONTROL OF MICRO TURBINE VOLTAGE CONTROL OF MICRO TURBINE  FUEL CELL AS A DG First fu