Cambridgeshire Company’s Self-Charging Trains Project Wins Government Funds
The title of this post, is the same as that of this article on the BBC.
These four paragraphs outline what the company is developing and how they received government funding.
Echion Technologies, based in Sawston near Cambridge, is creating train batteries that can charge from overheard wires, the Department for Transport said.
The trains would be able to use the batteries on unelectrified track.
The project was among the winners of the government’s First of a Kind competition.
The competition aims to award funding to projects that could transform the future of transport.
I have a few thoughts.
The Description In The First Of A Kind 2022 Winners Document
In this document, this is said.
Project No: 10039100
Project title: UBER – Ultra-high power Battery for low Emission Rail
Lead organisation: ECHION TECHNOLOGIES LTD
Project grant: £59,917
Public description: Project UBER (Ultra-high power Battery for low Emission Rail), aims to demonstrate for the first time, Echion’s XNO(tm) battery chemistry as the preferred battery technology for certain classes of battery electric trains. It targets Theme 1 of this competition.
Specifically, UBER aims to demonstrate the suitability of XNO(tm) for passenger trains that can be powered by the AC overhead electrification and charge a battery from the overhead wire (or another form of ‘standard’ trackside power — e.g. 3rd rail), to then run in battery-only mode on unelectrified section of a route. An example of such a train is the Revolution Very Light Rail (Revolution VLR) developed by Transport Design International (TDI), who is a partner in UBER.
Applying The Echion Technologies Batteries To Electric Trains
Consider.
- The BBC article is accompanied by a picture of a Class 717 train, which like the Class 700 train is dual voltage.
- Southeastern have thirty similar Class 707 trains, which are third-rail, although according to Wikipedia, were tested as dual-voltage trains.
- Most modern trains, like these Desiro City units made by Siemens, have a mix of motored and trailer cars, with one or more pantograph cars between the two driver cars.
- Because power is needed in all cars, there will be an electrical bus from one end of the train to distribute power.
- All trains in the family appear to have at least one trailer car, which will also be connected to the electrical bus.
With a family of trains like the Desiro City, Alstom’s Aventra, CAF’s Civity, Hitachi’s AT-200 or AT-300 or Stadler’s FLIRTs, train manufacturers assemble various cars, interiors and electrical gubbins together, to get the train performance and capability.
I would expect that the battery would be placed, where there is space and the most likely place is under the trailer car.
In some ways, it would work like the battery in a laptop computer, where operation is as follows.
- If there is external power, the computer runs on that power and the battery is also charged, if it is not fully-charged.
- If there is no external power, the computer runs on battery power, until the battery goes flat.
With a battery-electric train, operation is similar, with an important addition.
- If there is external power, the train runs on that power and the battery is also charged, if it is not fully-charged.
- If there is no external power, the train runs on battery power, until the battery goes flat.
- Desiro City and many other electric trains have regenerative braking and under braking, the electricity generated is is stored in the battery, if it is not fully-charged.
It could be considered by some, that regenerative braking is self-charging. But unfortunately, regenerative braking doesn’t recover all energy during braking. But it can be up to 70-80 % efficient.
Connecting The Echion Technologies Battery To The Train
The battery will have to be connected to the electrical bus, that runs the full length of the train.
As a Control Engineer, I suspect there will be a sophisticated control system, that will switch the battery between various modes and control the pantograph and third-rail shoes.
Perhaps, Echion Technologies have developed an all-purpose controller that could fit all trains?
Cryogenic Energy Plan Could Bring Jobs Boost To Largs
The title of this post, is the same as that of this article on the Largs and Millport Weekly News.
These paragraphs outline the project.
Proposals for a ground-breaking cryogenic energy storage system at Hunterston Marine Construction Yard have been unveiled..
The proposed development will generate 49.9MW of electricity – and is expected to create around ten jobs.
The cryogenic energy storage system comprises three main processes: a charging system, an energy store, and power recovery.
It turns ambient air into liquid, stores the liquid air in tanks and, when needed, expands the liquid air into a gas which generates electricity.
Highview Power are mentioned as behind the project.
As the report is dated the 21st if August 2021, is this another of Highview Power’s might-have-been projects?
The Anonymous Widower 