Many parts of everyday life in europe depend upon a continously working supply of electric power from the main european electric grid. Recent events (like the drop in frequency from a power shortage) have shown, that the grid is not as reliable as we all wish.
Heating your home in winter, water supply and many other things we take for granted will not work without a steady supply of electric energy. If power fails for more than a few days (especially during winter in northern europe) an uncomfortable if not hazardous situation may grow quickly.
Some people therefore invest into emergency power generators: a small combustion engine with a generator that supplies some electric energy to power the most needed parts of your home.
Unfortunately, these small combustion engines do need regular maintenance to be as reliable as they should be. If you really need them, they will not work, because you neglected maintenance.
Additonally they are not environmentally freindly.
So here comes my idea: use a combustion engine that gets regularly maintained anyway, is environmentally freindly and up and running in seconds. Use your car as a power source.
A modern car engine, running in idle, will produce up to 2 kW electric power. This will normally charge the 12 V battery and power the electric system of the car.
Every car manufacturer describes in the owners manual, where you may attach a jumper cable to jump start another car that has an empty battery. This connection point is strong enough to provide continous power to an inverter.
The TAPAS inverter will be used to prototype an "emergency box" inverter system that attaches to the 12 V battery (using a jumper cable) and provides three 1AC 240 V and one 3AC 400V outlet.
Why do we need 3AC? Because you can power a professional water pump with 3AC.
As motoric loads do typically draw very large starting currents, I will use the fast control features of the TAPAS to provide a soft start feature if motoric loads are attached.
The CAN controller of the TAPAS will be used to communicate with the car electronics to provide monitoring.
Note: The TAPAS will be used only for prototyping. The final product will have up to 2 kW electric power output.