Design and prototype a PWM based Micro Hydro Controller -- 3

I have a requirement for a PWM based Micro Hydro Controller or ELC to be designed and prototyped. The ELC( Electronic Load Controller) is intended to control the voltage of an induction/permanent magnet generator of a stand- alone micro hydro power generation. The generator voltage variation is in inverse proportion to the loading condition where ELC maintains constant loading of generator for continuous output power mode. The IGBT based DC chopping method is used for diverting excess power to the dump load using microcontroller for voltage sensing & control signal generation. The sensed voltage variation, is the reference to PWM signal generation, for the gate control of IGBT. Please refer to the attached PDF file. It contains a brief description regarding the working of an ELC. It also has a circuit diagram for an atmega328p based ELC along with its code. You may also refer to this link [login to view URL] Given below are my requirements for the Controller: 1) The ELC is intended to control an induction/Permanent magnet generator. Single phase. 220V. It should be voltage based control. 2) ELC shall use arduino compatible micro controller like atmega328p with arduino codes. 3) IGBT will be used for diverting excess power to the dump load. The IGBT can handle up to 57 Amps. 4) In case the dump load is damaged/disconnected or the IGBT malfunctions or the main board malfunctions and it can no longer divert excess power to the dump load, then the voltage will rise. This can damage the equipments connected to the generator. A circuit need to be built in to disconnect the user load by means of a solid state relay/contactor in the event of over voltage or under voltage. 5)Total harmonic distortion of the sine wave should be less than 5% 6) Isolate the IGBT sufficiently using opto couplers and snubber circuits. Fast switching of IGBT generates significant radio interference. Please ensure that this does not impact the performance of the ELC 7) I need a working ELC and one extra mainboard at the time of delivery. 8) I also need the schematics, part list, pcb layout& design, source code etc of the ELC 9) The project will be completed when the ELC is working satisfactorily in all aspects. I have a Pump driven Micro Hydro Turbine setup to test the ELC.