Dynamic modeling and coordinate control for an engine-generator set

The engine-generator set is widely used in extended-range electric vehicles. Dynamic coordinate control of an engine-generator set is very important for its efficient and stable operation. This paper firstly presents an average model of a diesel engine-generator set. Both the engine and generator system model are built in a semi-physical way instead of traditionally map-based. Experimental results show that the model is able to reflect the real system very well in both steady and transient states. Based on the established model, two typical dynamic coordinate control schemes are compared in terms of energy efficiency and dynamic performance. Insights on how to appropriately design a dynamic coordinate controller for the engine-generator set are briefly summarized