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Centralized Optimal Management of Distribution Resources Considering the Effects of Local Controllers of Generators

Publications - Paper

Centralized Optimal Management of Distribution Resources Considering the Effects of Local Controllers of Generators

This paper analyzes the behavior of a real distribution network with a hybrid control strategy: some generators and transformers are controlled by a centralized control system that also takes into account the automatic local controllers implemented in other generators.

In order to encourage the increase in distributed renewable production shares, it is necessary to introduce control strategies to avoid voltage and current violations and facilitate the provision of ancillary services to the transmission network through distributed resources. Centralized control solutions are often the best choice for optimal management of distribution networks, but usually require extensive monitoring systems. For this reason, some parts of the network (e.g. LV nodes) can be operated in an unsupervised manner through local control of generators. Of course, these local controls also affect the monitored portions of the network, so centralized architectures should take their (side) effects into account in order to compensate for them. This article analyzes the behavior of a real distribution network with a hybrid control strategy (i.e. where local controls are implemented in some parts of the network, while some generators and distribution transformers are controlled by the centralized system) and compares it with examples in which either only the centralized control system or only local controls are implemented.

 

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