Novel hybrid load-adaptive variable-speed generating system

Light loading of generator sets has long been the cause of accelerated aging and premature engine failure. This problem is exacerbated by impact and non-linear loads because generator sets are oversized to cope with this condition whilst maintaining the voltage within the specified limits. A new hybrid engine-friendly load-adaptive variable speed generating system has been developed which decouples the engine from the load by means of a decoupling converter. The engine load torque can be precisely controlled independently of the load so that optimal engine operation is achieved for a wide range of load power demands. Test results show outstanding performance under the worst load conditions, superior to that of comparable systems.