A Diesel Generator Model with Fluctuating Engine Torque Including Magnetic Saturation for Transient Analysis using XTAP

  • Sakamoto, Orie
  • Received : 2014.11.17
  • Accepted : 2014.12.26
  • Published : 2015.05.01


Diesel engine generators are widely used in the world, especially in remote site power systems as distributed generators. A weak distribution feeder with a small diesel engine may suffer from voltage and power fluctuations due to misfiring of the engine cylinder. In this study, new generator model with example engine torque was developed for the electromagnetic transient analysis program for power systems named XTAP. The configuration and verification results of the developed model are presented in the paper. The model is considered to be useful for analyses of small power systems with those diesel engines.


Diesel engine generator;Electromagnetic transient analysis;Power systems;Synchronous generator;XTAP


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