Here are some solutions for supply management and intelligent local network stations from Phoenix Contact
The Power supply network of the future must be equipped for alternating current flow directions and network operators need to supply energy of an increasingly high quality. Phoenix Contact offers solutions with measurement and control technology for installation in local network stations, which consistently acquires and monitors the voltage and current quality. The reliability of the continuous Power supply can be improved if the local network stations control technique is employed. This can be achieved for example by a rapid fault location by means of remote transmission of the state of the short-circuit detectors in the medium-voltage network and by remote control of the switch disconnector. What a system must have that it is able to make intelligent and local network stations to get as closer to the goal of a smart grid? It should definitely be easy to handle, very durable, compact, robust and inexpensive. In addition, the data must be transmitted safely, which means that they can not be picked up and modified by third parties and the network control are always present in time. Each station is different in terms of their equipment, the site, and possible communication channels. Therefore, the automation solution must ensure through granularity that can be flexibly adapted to the specific environmental conditions. This requirement applies not only to the number of inputs and outputs, but also the transmission paths. Here both a network-based and radio-based data exchange should be possible. For redundancy, it also makes sense to be able to operate both in parallel communication process. With its comprehensive product portfolio Phoenix Contact offers many ways to build intelligent local network stations.
Automatic Alert notification by cable or radio
Major hardware components of such a solution is an uninterruptible power supply (UPS) of small size, a battery module and a compact programmable logic controller (PLC). With the basic version of the controller, up to four phase-selective short-circuit indicator remote report and control up to two load-break switch. For transmitting further additional control or indicator circuit breaker be queued simply another input and output modules to the PLC. The system automatically monitors itself and reports faults of the UPS or a battery change necessary to the service personnel. Errors in the PLC are revealed, because in this case there is no feedback through a general query from the control room and the regular life message of all stations.
Network information and control signals can be wired or wireless. In addition, an optical fiber-based communication via HCS, polymer, or glass fiber can be realized. To that of the utility companies (utilities) used protocols are supported IEC 60870-5-101 and 104. The automation system from Phoenix Contact is also open standards that are not so commonly used in the energy industry, such as CANopen, Modbus / TCP, Modbus / RTU, Interbus and Profinet. In this way, a variety of other protocols can be connected, for example, detect the power quality according to EN 50160 or process the data of a Multi Utility Controller (MUC) and transmitted. The selection of the appropriate UPS is obtained from the respective energy demand and the controls used and the time to buffer.
High access security without loss of bandwidth
The data connection to the automation system to the Local Control Network is of particular importance. One of the most common protocols is IEC 60870-5-101/104. We must distinguish between the asymmetric (unbalanced mode) and the symmetric transmission (balanced mode). With asymmetric transmission, the messages are spontaneously transmitted, while the transmission is symmetric in the querying the data in the IEC 60870-5-101/104 network implemented in various ways. The flexibility of the controllers from Phoenix Contact is the individual transmission modes can, however, adjust quickly.
An important aspect of data transfer is the access security. So in the information document including secure system architecture, ability and patch management, encryption of sensitive data, an integrity check as well as secure communications, network structures and remote access are required. Featuring an interface designed for harsh environments such as the Security component FL MGuard from Phoenix Contact can fulfill these requirements to implement a secure control and telecommunications system without the transmission bandwidth significantly reduced.
Simultaneous control of local power station and plants from renewable energies The energy distribution can be improved by measuring network quality, current flow, power, cos phi and other variables, If the energy consumed at their source, the conduction losses and the regulatory burden on the parent network reduce significantly. For data transmission with regenerative energy generation system, the wired or wireless solutions are utilized. Technically equipping the local network stations with a modular automation technology, Phoenix Contact opens up a variety of approaches to make the stations intelligent. The pressure in this direction is amplified by the increasing supply of renewable energy generation facilities and the plans in terms of electric mobility. The achievement of the ambitious goals for CO2 reduction also helps that the intelligent control of the load flow in the low and medium voltage network can not be waived. Due to the global data networking access the secure communication needs to be considered when planning the automation system. The cost optimization plays an important role. The modular design and the compact, robust and inexpensive design of components and systems allow in any case, the implementation of economic and future-oriented solutions.
The author is Netrapal Singh, Phoenix Contact India Pvt. Ltd. He can be reached at email@example.com
I wish to start pvc / pp electric wire unit in Delhi. What kind of information I can get if I subscribe for your magazine
Pls invite me all auction in gujarat
we are doing business developing for solar power ,thermal power , customer supporting and we have 45 mw splar power on hand needs investors.....
pls call +910842559230