20kva alternator design with adjustable load curcuit

my project consists of 2 parts. 1.)the calculation and sizes of the laminations(noss v470) as well as the windings for 3 phase 220v 4 core 20kva alternator. 2.)i need a circuit designed for the alternator that automatically add an adjustable load the main load. the circuit must rectify the alternator winding and combine the to form a 240v single phase output. the out must the be inverted to 50 Hz .whether the phases must be combined before or after the frequency conversation i don't [login to view URL] this the 240v 50Hz goes to the load. from the load it must the come back to an artificial load. the size of the artificial load will change according to the output. the artificial load will always be the generated power being produced by the alternator at that time minus the main load at that time plus half of the resultant . for example if the generator is producing 6kw and the load is 2.2 the the resultant is 3.8kw. the artificial load must now be 3.8kw multiplied by 1.5. this only aplies if the main load is smaller that the generated power. if the load is greater then the artificial load is excluded from the circuit and external power from some storage device(Like a cap) is added briefly till the power matches.(will give the device chance to accelerate) the alternator must handle a maximum of 50amp 220v 50hz hence 20kva for 16kwh i only require the design and some drawings to note dimensions and parts specs.