small off grid induction generator system components and design

[ThomasS]

4 basic components needed:
- turbine
- induction motor as generator
- capacitors
- IGC induction generator controller including dump loads

Additional installation parts like
- axle coupling between turbine and generator, maybe pulley system or similar for adapting turbine speed to generator speed
- electrical parts like circuit breakers, residual current breaker, meters

Design considerations
- choose optimum turbine for given head and flow
- choose nominal RPM of motor, so it matches turbine closely
- overrate generator, so it will survive moderate overspeed
- overrate dump loads, so system will survive some broken dump loads
- single phase system or 3 phase system?

Capacitor calculation for single phase system

For more information, read pico hydro for village power

Basic wiring scheme:


Cheap dump loads