wilamowski-b-m-irwin-j-d-industrial-communication-systems-2011

59
IEC 61850 for Distributed
Energy Resources
Sidonia Mesentean
Reinhold-Würth-University
Heinz Frank
Reinhold-Würth-University
Karlheinz Schwarz
Schwarz Consultancy
Company
59.1 Introduction..................................................................................... 59-1
59.2 Basic Concept................................................................................... 59-1
59.3 Modeling the Automation Functions...........................................59-3
59.4 Communication Services...............................................................59-4
Client/Server Communication. •. GOOSE. •. Transmission
of Sampled Analog Values. •. Clock Synchronization
59.5 Modeling with System Configuration Language....................... 59-7
59.6 Different Types of DER...................................................................59-8
Wind Power Plants. •. Hydropower Plants. •. Other Specific
Types of Distributed Energy Resources
References..................................................................................................59-10
59.1 Introduction
A dramatic change is going on currently in the supply of electrical energy, generally called power supply.
In former times, this power supply was mainly provided by few big power stations. The technology of
the automation systems in such power stations was designated by a few big enterprises. These days more
and more small power supplies (DER—distributed energy resources) like wind power plants, combined
heat and power, hydropower plants, photovoltaic systems, fuel cells, and others are being implemented
everywhere.
The devices for the automation, protection, and monitoring of the distributed energy resources are
developed and manufactured by many small and medium enterprises. So the technology is designated
by many different participants. This causes a wide variety of technical approaches. In the application
all distributed energy resources, however, all energy resources have to be integrated into one common
electrical power grid. For the management of the energy flow in this power grid, for the maintenance of
the systems, and for the electricity billing, most of the energy resources have to be integrated also into a
common communication network (Figure 59.1). A required standard for this communication network
is provided in the IEC 61850.
59.2 Basic Concept
The IEC 61850 standard was originally developed for substation automation [Sta1,Sch,Bra]. Afterwards it
was used for distributed energy resources [Win,Sta2,Sta3]. It consists of the following parts:
• Modeling of the information that has to be exchanged
• Selection of abstract communication services from IEC 61850-7-2
• Selection of real protocols for the communication services
59-1
© 2011 by Taylor and Francis Group, LLC