Time-optimized Power Consumption: Towards a Smart Grid for Rail Infrastructure

Transcription

1 Time-optimized Power Consumption: Towards a Smart Grid for Rail Infrastructure Raimund L. Feldmann (Project Cluster Manager, SBB, IT-SCI-PJ-PCM) Budapest, October 18th, 2017

2 Agenda. 1. SBB: Swiss Federal Railways. 2. Top Program Energy Saving. 3. Power Management of Thermic Consumers. 4. Questions & Answers. SBB Infrastructure October

3 With 33,000 employees from 95 countries in 150 different professions, SBB is the country s fourth-largest employer. SBB: Swiss Federal Railways. SBB Infrastructure October

4 SBB. We keep Switzerland moving. Infrastructure 3,230 km of network SBB Cargo 210,000 t of freight per day Information technology Real estate 3,500 buildings Passenger Division 1,21 million passengers per day SBB Infrastructure October SBB Infrastructure October

5 SBB Infrastructure. 3 Networks: Rail, Telecom, and Energy. 31,266 12,997 10,000 signals sets of points employees ö 5,926 bridges 3,230 km of track 10,000 Trains each day for 20 RU hydroelectric plants tunnels Frequency 6 converters GSM-R operation centres SBB Infrastructure October

6 Forecast 2030: Growth. Ever-increasing numbers of passengers & freight. Overall growth in rail demand (pkm) of 20% to 80% between 2012 and SBB Informatik Solution Center Infrastruktur Budapest October

7 By 2030 SBB expects an average increase of demand for energy of +25% at peak times even up to +40%. Top Program Energy Saving.

8 SBB s overall strategy. To reduce energy and power consumption by 20% households = 600 GWh Efficiency goal: 600 GWh/year from 2025 Technology Service planning Railway production Anchor energy efficiency in the company Create transparency and manage energy consumption SBB Division Abteilung oder Bereich DD.MM.YY 8

9 Our goal. Power from 100% renewable energy. Increasing energy efficiency: By 2025, SBB will save 600 GWh of energy per year. This is equivalent to savings of around CHF 80 million a year. Procuring renewable energy: SBB promotes the build-up of renewable energy. In parallel, SBB implements a power management system to actively influencing the demand of energy over time. Replacing the share of nuclear power: Energy efficiency will allow us to save energy, and thereby, cut out the nuclear power demand of our portfolio. SBB Infrastructure October

10 Strategical directions of impact. Five focus areas to reaching our goals. 1 2 Energy efficiency Upgrade hydroelectric power plants Eliminating share of nuclear power Procuring renewable energy Network optimisation 4 Hydroelectric power plants Uses stored energy from reservoirs and kinetic energy from rivers. 3 Frequency converters Converts 50 Hz three-phase current into 16.7 Hz traction current. 1 Power Management 5 [t] Standard network 50 Hz SBB also taps into the electricity used by industry and households. Substation Converts 132,000 V high voltage into 15,000 V overhead line voltage. Overhead line Supplies trains with 15,000 V traction current. Network and Energy Optimizations are two of the key elements of SBB s power management programme. SBB Infrastructure October

11 Introduction of power management to reduce peaks by controlling electrical consumers of up to 150 megawatt [MW] by Power Management of Thermic Consumers.

12 Traction current network vs. 50 Hz network. Load dynamic in short time periods makes the difference. 1 day in Zürich city 1 day at SBB Load changes Zürich city SBB 500 daily within 15 min. up to 250 MW up to 35 MW ~7% of the daily maximum load up to 500 MW up to 300 MW ~ 50% of the daily maximum load :00 12:30 13:00 13:30 14:00 14:30 15:00 15:30 16:00 16:30 17:00 17:30 18:00 The traction current network is highly dynamic management & control is challenging SBB Infrastructure October

13 ( hydroelectric-) power stations Total power output [MW] Frequency converter First step towards power management. Peak shaving power band :00 03:00 06:00 09:00 12:00 15:00 18:00 21:00 00:00 (time of day) Consumption Supply Peaks occur only for a short period of time; typically less < 1 minute Peaks are steep: ascending up to+25 MW/s; descending up to -15 MW/s A few peaks a year require the supply of an additional power band SBB Infrastructure October

14 number of peaks Anzahl von Peak Peaks occur typically < 1 minute during winter the winter. Distribution of peaks according to their duration. 10 Anzahl von Peak in Funktion von Dauer von Peak Source: J. Clavel Dauer von Peak duration of peaks Seconds SBB Infrastructure October

15 Peak shaving approach. Background and objectives. Increasing energy efficiency in rail power at peak times. Using existing infrastructure at maximum capacity thanks to optimal operation. Avoiding additional invests due to ever increasing peaks power peaks. First step: Peak shaving of thermic consumers. Detection of threshold violation in real-time within fractions of a second. Load peaks will be clipped by up to 70 MW by shutting off thermic consumers. [MW] Load curve without LM [MW] Load curve with LM Load Management (LM) Threshold [t] [t] SBB Infrastructure October

16 System components. Load management with point- and train car-heaters. Railway electricity grid control center Energy Management System Demand side management control system Load controller Triggersignals for off-/ on-switching Momentaneous net demand Peak detection Controller Trigger signal generation HMI (Human Machine Interface) Datalogging Telemetry plattform for train cars Telemetry plattform for point-heaters Enable Disable Enable ON OFF Pool of flexibly switchable 70 MW SBB Infrastructure October

17 Laying the ground for the future. High-level system architecture. Presentation Business Logic / Data Persistence SAP HANA & Smart Data Streaming layers EAI / Data Mediation IBM Integration Bus Adapter Interface using TASE.2 protocol Data sources & drains Energie Management System Telemetry platforms Telemetry plattforms SBB Infrastructure October

18 Time line. Next steps and future enhancements. Designing the further development of LM with regard to cooling, traction, predictive algorithms Full Power Management Integrating improvements/ expansions Design and proof of concept LM with heaters Development of LM basic system 2017/18 winter test run Fine tuning and operation validation Productive load management system with heaters; simultaneous expansion of the load pool Load Management (LM) with heaters Future Enhancements of LM Completed Next steps Milestones Power Management SBB Infrastructure October

19 Questions & Answers. SBB Infrastructure October

20 Contact. Swiss Federal Railways SBB Infrastructure Sales Hilfikerstrasse 3 CH-3000 Bern 65 Switzerland sales@sbb.ch SBB Infrastructure August