Smart Operation for Power Distribution Systems by Daniel Pinheiro Bernardon & Vinícius Jacques Garcia

Author:Daniel Pinheiro Bernardon & Vinícius Jacques Garcia
Language: eng
Format: epub
ISBN: 9783319939223
Publisher: Springer International Publishing

4.4.4 Hierarchical or Hybrid Control

Hierarchical or hybrid control is a combination of centralized, decentralized, and local approaches, taking advantage of each structure [6, 7]. The hierarchical method is based on the implementation of a control scheme with the combination of the field controllers intelligence (local), the substation (decentralized or distributed), and the (centralized) utility, as shown in Fig. 4.12.

Fig. 4.12Hierarchical VVC structure . Source: Adapted from [6]

The hierarchical control structure can use different communication channels between the devices, without relying on a single communications network as in the centralized system. In addition, the hierarchical structure has the ability to integrate between the local, decentralized, and centralized controls, where lower levels of control can operate even with a communication problem. In this way, a network communication failure impacts a smaller area of the control system [6]. The hierarchical control approach is illustrated in Fig. 4.13.

Fig. 4.13Hierarchical control structure

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