{"title":"400 kW Six Analytical High Speed Generator Designs for Smart Grid Systems","authors":"A. El Shahat, A. Keyhani, H. El Shewy","country":null,"institution":"","volume":39,"journal":"International Journal of Electrical and Computer Engineering","pagesStart":676,"pagesEnd":694,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/5063","abstract":"High Speed PM Generators driven by micro-turbines\r\nare widely used in Smart Grid System. So, this paper proposes\r\ncomparative study among six classical, optimized and genetic\r\nanalytical design cases for 400 kW output power at tip speed 200\r\nm\/s. These six design trials of High Speed Permanent Magnet\r\nSynchronous Generators (HSPMSGs) are: Classical Sizing;\r\nUnconstrained optimization for total losses and its minimization;\r\nConstrained optimized total mass with bounded constraints are\r\nintroduced in the problem formulation. Then a genetic algorithm is\r\nformulated for obtaining maximum efficiency and minimizing\r\nmachine size. In the second genetic problem formulation, we attempt\r\nto obtain minimum mass, the machine sizing that is constrained by\r\nthe non-linear constraint function of machine losses. Finally, an\r\noptimum torque per ampere genetic sizing is predicted. All results are\r\nsimulated with MATLAB, Optimization Toolbox and its Genetic\r\nAlgorithm. Finally, six analytical design examples comparisons are\r\nintroduced with study of machines waveforms, THD and rotor losses.","references":null,"publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 39, 2010"}