This is our experimental power converter that is controllable by an external signal. This converter can adjust the power of the thermal load by changing the amplitude of the alternating supply current without changing the other parameters of the supply current. The frequency and sine wave remain preserved, so it is an AC/AC converter.
Within the WATTrouter ecosystem, one of these inverters can replace one SSR up to 10A.
Parameters and Properties
This inverter, together with our wattrouter, is able to reduce the excess energy to the network to an absolute minimum, typically several tens of Wh per day (if the appliance connected to the inverter is still active and the power plant's output does not exceed its power input). These are usually small, so-called grid-free power plants. Technically, these PV plants can also work with a common unidirectional electricity meter, which counts all energy flows into the network as consumption from the network, and excess energy can be neglected. Therefore, a four-quadrant or two-way electricity meter is not needed at all.
Attention: This is only a technical point of view, the connection of such a PV plant without the consent of the grid operator is usually prohibited!
Launch and Estimated Price
This inverter is not yet mass-produced, we do not plan to launch it on the market earlier than during 2023. A necessary condition for the start of production is also the stabilization of the market for electronic components, which is not in sight at the time of publication of this article (winter 2023).
The estimated price of the converter will be 400 EUR.