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UC #4.1: Energy High-Voltage UC
This UC focuses on future Energy services/applications related to real time gathering of energy consumption and load data (recovery of energy fed back during braking) in the Railway Management System (RMS) and Energy Management System (EMS) platforms. The former aims to assist infrastructure managers and railway operators to select optimal strategies and resources in a cost-effective and energy-efficient manner (i.e., by synchronizing breaking and tractive effort in the rolling stock). The objective of the latter is to assist substation operators to perform smart energy techniques such as demand-respond, peak management, substation stress avoidance, load balancing, efficient HV grid interaction and cost savings in the ΕΜS platform below.
In view of these services, the trial focuses on the monitoring and analysis of the energy flows for the railway system considering jointly the power electrification system and the rolling stock. The trial aims at analyzing the interactions between the train and the substations during acceleration/breaking periods of the trains.
5G-VICTORI Patras Facility
The baseline implementation of the Patras 5G-VICTORI experimental platform is being developed within the ICT-17 5G-VINNI project. The plan in 5G-VICTORI is to upgrade this platform with additional functionalities and to extend it towards several operational facilities owned by Greek vertical industries. This will allow the implementation of the 5G-VICTORI UCs running in Patras, and will be able to also support cross-vertical and cross-facility experimentation and KPIs validation. In this regard, different 5G service classes will be supported, i.e. eMBB, uRLLC and mMTC.
The final HV trial is expected to take place at Corinthos (Greece), where ADMIE feeds a range of primary substations. One of these primary substations (150kV/25kV), at Corinthos, is used for TRAINOSE suburban trains traction (TPSS). A 5G base station (access) will be installed at the Corinthos TRAINOSE train substation connected to a local data center (VM). This UC is served through the 5G-Patras autonomous edge.
The ADMIE power station at Corinthos is located next to TRAINOSE Corinthos train-station (Figure 1). ADMIE high voltage facility is an area with security and surveillance systems. There various on-site metering devices (e.g. Honeywell metering devices) that are installed in a small building (point A in Figure 1). TRAINOSE facility is an open space, 4-platform station. One of the platforms lies along the ADMIE facility (point B in Figure 1)
According to the first design outcomes the Autonomous Edge will be mounted close to the platform 1 (see point B in Figure 1. The distance between A and B is ~ 50 m. As the train arrives (departs) to (from) the Station, real time power consumption measurements are transmitted in real time to data management platform hosted at the Autonomous Edge. ADMIE will be equipped with CPE to be connected to AE at all times.
The data management platform supporting the trial is deployed on the Autonomous Edge and orchestrates the collection and synchronization of measurements originating from the train and HV substation. The core functionality of the platform is based on UiTOP, taking advantage of two key features of UiTOP, multi-tenancy and on demand module configuration.
This is a cross-vertical UC where two different operators use the same infrastructure, thus it is a precondition to ensure data privacy. The Railway Management System (RMS) and the Energy Management System (EMS) are executed as two completely isolated applications (instances of UiTOP). Information exchange between the two systems is permitted only for specific datasets, as agreed.
For the real-time monitoring of the HV substation, Honeywell recorders are utilized, which use Modbus TCP communication protocol. For the collection of HV substation measurements by UiTOP, a custom Modbus TCP module and the needed time-series database have been developed.
The train monitoring system relies on a high performing data acquisition platform collecting measurements from a variety of sensors (i.e., power consumption, speed, position, 3-axial accelerometers, vibration sensors, frame grabbers monitoring the status of the electrification lines, etc.) installed on board. The monitoring system collects measurements with rates exceeding 50 KSamples/Channel/Sec. Fully synchronized/timestamped measurements should be transmitted to the trackside adopting standard IoT messaging protocols (i.e., MQTT) over the private 5G network that will be deployed at the Corinthos station.
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