Dissimilarities

Applications where several generating sets are paralleled together are quite common today. Either to supply electrical power to a facility in island mode or paralleled together with the Utility in an infinite bus topology. Standby generators are frequently paralleled together to protect critical applications such as hospitals or data centres in the event of a failure from the Utility. In other situations they are used for periodic emergency support to directly back-up the national electricity network. Then there is the scenario where a Utility supply is not even available and paralleled groups provide the only source of reliable energy to a specific site. The configurations are immense. Whatever the application, paralleling is a fundamental concept in power generation and invariably introduces specific challenges that must be overcome.

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