Specificity of exploitation and maintenance of electric busses in CTC Belgrade Željko Milković,MSc.M.E Director of the company Slobodan Mišanović, MSc.T.E. Project manger Du šan Savković,MSc.M.E Tehnical director Pavle Krsti ć,MSc.E.E Slobodan Stević, MSc.E.E
Specificity of the exploitation of the Ebus in Belgrade - Introduction - Line EKO 1 - Electric buses '' Higer '' - Charging system - Maintenance, safety measures, day care, parking - Exploitation indicators - Environmental benefits - Economy
About public transport in Belgrade City Public Transport Company “Belgrade” Modal split (JKP GSP “Beograd’’) Motorcyclists is the carrier of the public transportation function in 0,10% Belgrade Other Cyclists 0,53% 0,55% Tram subsystem (150 trams operating on 11 routes), Passenger cars 21,55% Trolley subsystem (94 trolleys operating on 8 routes), Bus subsystem (609 buses operating on 119 routes). Urban transport EKO 1 – e.bus line ( 5 E.buses) 52,86% Daily CPTC “Belgrade” transports about 1,580,000 passengers Participation of bus subsystem in achieved transport Pedestrians work is about 70 % 24,41%
2014-2015-2016-2017- 2018… year E-bus a new concept of environmentally clean and energy efficient public transport in Belgrade Start of regular exploitation 1/9/2016 Our activities: GSP Belgrade is a leader in Southeast Europe in monitoring and the implementation of the bus concept on pure electric drive Cooperation and exchange of experiences with E-bus manufacturers (BYD, Siemens Rampini, Chariot bus-HIGER, Solaris, ) Testing E-bus BYD E12, on lines no.26 and 41 (April 2014) Case Study - Simulation of E-bus, Solaris E12, on line no. 41 (December 2014) Active participation in international organizations and projects dedicated to E-bus (UITP Bus Committee, UITP-Troll-Committee, Clean Fleets Project, Hybrid User Forum, Civitas, ZeEUS user group ....
Line EKO 1 (Vukov spomenik – '' Belvil '') • The new line, which connects the Old and New Elements of operation of the line 1E Belgrade • Regeneration of electrical PT with electric drive on Line EKO 1 Number E.bus in operation New Belgrade ( 4 ) Total Turnar Charging • Line passing through the center of city length ound interval freq Q time (km) time (min) .(bus/h) (pass/h) (min) • High attraction lines (L1+L2) (min) 16,1 16 (9+7) 62-68 20 3 240 • Fulfills energy requirements for setting up the charger to the terminus • line length 8 km
The choice of concept of E-bus Opportune charge on Terminus via pantograph Storage using super capacitors • Acceptable charge time • Ability to connect to the trolleybus and tram contact • Principle: Electro static network ( DC), or public distribution electric grid (AC) • High power • E.bus can work all day (especially important in • High efficiency 92-98% summer when air conditioning is used as a large • Temperature range: -40 +65 C. consumer) • Short charge on terminal 5-8 min • The flexibility of the rapid charging and discharging • Larger lifetime: min 10 years • Suitability of recycling Position of super capacitors charging phase E-bus to the terminus
Table. 8 Technical Data E-bus HIGER KLQ6 Manufacturer ................................................................................ Higher Type ..................................................................................... Electric KLQ6 Length / width / height ………………………… . 12000/2550/3680 mm Curb weight..................................................................................12540 kg Passengers ……………………………………………… . … ..... …… 82+1 M а x. speed ……………………………………………………… .70 km / h Charging the terminus: 660 V DC or 380 V AC, 580 V DC output, 250 A Charging time at the terminus ... ............................................ 5-8 minutes storage system Electricity ........................................................................ super capacitors Capacity ........................................................................................ 20 kWh Manufacturer ................................................................................... Aowei Type .................................................................... U-CAP (37DT6-03210) Traction motors ...................................................................................... 2 Manufacturer ............................................................................. Siemens Type ......................................................................................... 1PV5135 Power ........... 2x90 kW (peak opt.) ……… ....... ... 2x67 kW (nom. Opt.) Torque ....................................................................................2x430 Nm Inverter ..................................................................................... DC / AC Manufacturer .......................................................................... Zhonglian Type ...................................................................... IEVD 130-60ZO6GA Working range .............................................. 580 V DC / AC 500-650V Convereter ................................................................................ DC / DC Manufacturer ...........................................................................Zhonglian Type ........................................................................................ DY074C Working range ................................................................12-24-48 V DC Charging system: Pantograph ........................................................... Aowei 37DT6-03212 Auxiliary systems: Air conditioning .................................................... Thermoking 81DT6 Pump control ......................................................... KVD HDZXB 1416 Compressor ....................................................................... IEM ER 230 UC-Cooler ...................................................................... Aowei 37DT6 Traction control .......................................................... Siemens 10DT6 External display ................................................................. Novatronic
Charging station ‘’Vukov spomenik’’ (DC/DC) Charging station ‘’ Belvil '‘ (AC/DC) charger in depot "Dorcol" Technical data AC 3x380 V Input voltage 60 kW (DC / DC) DC 660 V 150 kW Power 400-600 V DC Output voltage 200- 250 А DC Maximum current 4.5-4.6 m The height from the ground
Maintenance, Safety measures, Day care Simpler maintenance compared to the diesel bus • Vital parts of the electrical components (inverters, converters, air copresor, pump, supercap ...) modular type Short replacement time super capacitor compressor, steering pump traction inverters
Block diagram of components and flows for electric bus – Higer KLQ 6
Diagnosis or defects are identified in the instrument panel, monitoring in real time
Lower maintenance costs ( compared to a diesel bus about 3 times, E.bus 3700 Euro/year, Diesel 11 000 Euro/year ) Comparative overview of components and systems on the bus
Check list of services on the 20 000 km (40 000, 60 000, 80 000 km )
Safety measures Operation and maintenance of buses on a purely electrical drive means strict adherence to prescribed security measures and procedures - All components of the high voltage control system must be marked with a warning label and must comply with the electrical current protection according to the ECE R100. Marking the invertor with a warning sticker Sticker marking high-voltage locations
-Drivers operating E-buses must have safety training in the exploitation and charging of E-buses at the depot and terminus. -Passengers should not be in the E-bus during charging at the terminal. -Training for maintenance workers with security procedures during preventive and corrective maintenance. - E-buses must be fitted with a system for detection fire and automatic extinguishing and a switch for switching off the voltage from batteries or super capacitors . Switch off the voltage from Fire detection system the super capacitor - When replacing or repairing components and systems that are under high voltage, the input voltage must be switched off.
-batteries or super capacitors must be designed or provided with additional equipment ('shock absorbers‘) • Every day, after the end of the operation, the vehicle passes the automotive line for the external washing of the vehicle • Routine review system for braking, steering, signaling
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