REMOTE VIDEO SURVEILLANCE CASE
We have been contracted to assemble video surveillance kits for a corporate client. The kits are used in a range of situations for remote observation and are rugged and weatherproof. This involved a comprehensive design process for the battery/charger system we supplied. Design also included the plastic insert/separator to protect the LFP battery, BMS and charger. The insert also supports the PC.
The EV Power Tower
We recently completed a project for an energy utility company. For fringe of grid stabilization, its nicknamed the EV Power Tower.
Features:
- Aluminium Enclosure with front and rear three point lockable doors.
- 1030 x 910 x 1600mm
- 600 kg total, 39kW hrs nominal energy storage capacity
- 400VDC nominal
- up to 50kW hrs max available usable storage capacity
- System voltage and capacity can be varied to user requirements
- Space for up to two 19" Rack mount solar regulators/inverters/chargers 6U (267mm) high
- Battery management system, fuses and DC contactors built in
- Small foot print for the capacity. Lead acid systems could not come near this.
Mining Application for EV Power Paks
EV Power recently supplied 16 EV Power Paks to a large mining company for telemetry systems.
AC Motor powered Electric Vehicle conversion
Specifications:
- Car - 2004 Proton Jumbuck GLSi 5sp manual
- Motor - Synchronous AC Permanent Magnet motor, BLDC, air cooled
- Inverter - 80kW 312V VF Drive controller, air cooled
- Have seen 300A peak at 270VDC ==> 81kW actual
- Battery - 90 Cells LiFePO4 90-100Ah, 288-300VDC nominal
- Charger - Elcon 2.5kW, 288V
- Battery Management - EV Power BMS of course!
- Steering pump - Mocen 24V 500W hydraulic
- Vacuum Brake pump - BetterVac 12V
- DC-DC 12V Aux power - Meanwell Switch mode power supply 36A (no aux battery)
- Instrumentation - Xantrex Pro, Volts, Amps, Ah, time remaining till empty.
- Battery Capacity 25kWhrs
- Range - 150km @ 90kmh
- Top Speed - 140kmh +
- Acceleration - significantly faster than IC version
- Gearbox - retained but no clutch, generally only 2nd and 3rd gears required. With some modification to the inverter no gears would be required.
- Economy 155Whrs/km Highway.
- First drive in Oct 2009
Lithium Powered Golf Cart
I took a 36V EZGO golf cart, removed 156kg of Lead Acid and installed 70kg / 48V of LiFePO4 batteries. This is the result...
Specs:
- EZGO Golf Cart
- Controller - 48V Series/PM 300A (original was 36V Curtis)
- Old Batteries - 6 x Trojan T105, 156kg, 5.7kWhr (5hr rate)
- New Batteries - 16 x SE130AHA, 71kg, 6.8kWhr (1 hr rate)
- Battery Management System - EV Power of course!
- Charger - PFC LiFePO4 16 Cell 25A
- Charge time - 5 hours from Empty
- Top speed - 25kmh
Analysis:
- Lithium battery weighs less than half the lead acid battery.
- 20% extra range
- 25% higher top speed
- 2000 deep cycles Lithium versus 300 deep cycles Lead Acid
Whatever way you look at it LiFePO4 batteries are a clear winner!
CERES ELECTRIC VEHICLE
EV Power supplied BMS and components to CERES in Melbourne for their first EV. Rhys Freeman has been the driving force behind this project and has seen it all the way through from concept to fruition.
University of WA Renewable Energy Vehicle Project
EV Power Pty Ltd supplied batteries and BMS for the first UWA Renewable Energy Vehicle in 2007. This vehicle has assisted UWA to obtain much needed sponsorship funds for further EV research.
Swan TAFE EV Challenge 2008
EV Power sponsored the "River Raiders" team this year in the Swan TAFE EV Challenge . This is an electrathon style of event where vehicles race for one hour around a winding circuit. At the end of the hour the numbers of laps are compared.
The team consisted of Rod Dilkes (electrics), Wayne Pragnell (body design) and Peter Fitchat (steering/suspension).
In all we entered three cars in two classes:
Electric Chair - Yuasa Class (No cost limit, SLA batteries provided)
Carbonnay - C Class (Open class, $1200 cost limit)
Hot Rod - C Class, Yuasa class
The results for our team were as follows:
C Class - 1st Hot Rod, 3rd Carbonnay (also engineering award)
Yuasa Class - 1st Electric Chair (also engineering award)
We wish to thank all the teams and the organizers of this great event. As all the teams well know 95% of the effort is in just getting to the start line! We hope to see it grow and promote the use of EVs in the future.
The cars used hub motors and brushless controllers. Batteries were LiFePO4 400Whr capacity, 4.2kg. The first three cars in the C class were powered by LiFePO4 battery packs supplied by EV Power, LiFePO4 batteries are our specialty.
A short clip of the Swan TAFE EV Challenge coutesy of Wayne Pragnell is available here
Congratulations go to South West Regional College of TAFE who came second in C Class using EV Power batteries. Also to Donnybrook Senior High School who came second in Class A using an EV Power hub motor/controller. Well done guys.
Solar Power
By using Grid connected solar power we now effectively have a solar powered car!
Solar Assisted Electric Vehicle
In 2003 work began on an Electric Vehicle. A Suzuki Mighty Boy was converted from petrol to electric and has been used daily ever since. In Februrary 2007 Thundersky LFP90AHA Lithium Ion batteries were installed. These batteries mark the beginning of the Electric Vehicle revolution.
In August 2007 a grid connected solar array was mounted on Rod’s home. The car is charged using off-peak power at night which the solar array generates during the day. It also gets some charge from a solar panel mounted on the roof of the car itself. As such it is the first and only completely solar powered commuter vehicle in Australia.
Lithium Ion Battery Management System
The Battery Management project began in mid 2006. After examining all the available options it was decided that a simple but failsafe solution was the best course of action. Extensive prototyping was embarked upon and finally a design established. This BMS has been tested extensively in the Suzuki Mighty boy since Feb 2007.
As of July 2008, the BMS cell modules are being mass produced. The design has been through several iterations and is finally mature. Check our products pages for info and pricing.
Conversion to Thunder Sky LFP90AHA Batteries
In February 2007 the Suzuki Mighty Boy was converted to run on Thundersky LFP series Lithium Ion Batteries. This was the first such installation in Australia. As of Feb 2008 the car has done 8000km of faultless service on these.
