MELSEC System Q: Controlling a modern district power station

PublishTime：2022-08-10

■The waste incineration plant in Frankfurt Nordweststadt was built in 1965 together with the neighbouring district heating power station. Since then the two facilities have supplied the city district with electricity and district heating. It was then decided to convert the plant into a modern waste-fired district heating power station with an annual incineration capacity of up to 525,000 tonnes of household waste. Work on the conversion and modernisation project began in 2004 and is being continued in a staged process. The modernisation of the district heating power station has now been largely completed, together with the main section and two of the four incineration lines of the waste incineration plant.
■The objective of the operators is to combine the two plants into a single integrated facility that will remain efficient and economical for many years to come. One of the main specifications for the control systems was that they should be able to guarantee trouble-free continuous operation of the waste-fired district heating power plant. In addition to this the operators wanted to have access to up-to-date performance, diagnostics and service data at all times, so as to enable inexpensive and simple servicing and maintenance. The engineers from KH-Automation Projects installed exactly the same control and automation technology in both the neighbouring plants to maximise the potential synergy effects. A joint control room with five control consoles provides comprehensive information on the status of all components of the plants.
■ PMSXpro was chosen as the central process control system.Distributed local process stations acquire the process data from the individual plant units and then pre-process and archive the data. The central control system is connected to the individual automation stations via an Ethernet network.
■The MELSEC System Q automation platform is Mitsubishi Electric’s most powerful modular PLC system. Up to four CPU modules can be installed on a single backplane, sharing the load of the control, data processing and communications tasks.The processes in the plant are controlled by special high-performance CPUs designed for redundant configurations and the requirements of critical industrial process applications.
■Local communications take place via a Profibus master module that supports up to 125 distributed field devices (slaves).

Brand of Product：	MITSUBISHI ELECTRIC
Part#：	MELSEC System Q automation platform 、 PMSXpro More Part#
Product Category：	Control Systems 、 Modular More
Application：	More
Data Type：	Solutions More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	March 2006
Version Number：
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Data Size：	49 KB

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