Wireless Power Transmission
From the point of energy collection
Energy is to be transferred wirelessly using TX & RX antennas to one, or multiple locations
Recipient locations to feed the energy onto the grid (or end consumers)
Bringing new possibilities alongside significant cost savings
The easy to install wireless transfer solutions enable the collecting of energy at remote locations, on land or at sea, saving real estate and installation costs.
One
Improved sustainability by enabling greater reliance on renewable energy, avoiding βnot in my back yardβ arguments, supporting both the grid and remote locations with clean energy.
Two
Sending energy 10s of kilometres at a time, rather than via traditional cables, enables reaching remote locations or ones not easily accessible by the grid with far greater ease.
Three
As an example, for a range of 20 km at 5.8 GHz, the required diameter of both transmit and receive antennas is about 45 m (inn case parabolic dishes are used). At this frequency the rain losses are small even under heavy rainfall conditions
As a further example, the distance between adjacent pylons for a traditional 3-phase electricity network is in the range of 100-200 meter. In the proposed system the distance between antenna towers can be 10’s km.
- The system design must consider rain losses.In rainy regions, the beam frequency must be below 10 GHz in order to minimize losses due to rain.
In other regions where the probability of very high rain rate (units mm/hour) is small (e.g. less that 0.01% in a year) it is possible to use mm waves in one of the atmospheric windows. In this case the antennas sizes will be smaller. - Tx and Rx antennas must be mounted on tall pylons.
In order to provide line-of-sight channel (to achieve higher channel efficiency) and to avoid radiation onto residential areas.
- Total efficiency is given by π_π‘ππ‘ππ=π_ππ₯βπ_πββπ_π
π₯
While πx and πRx can reach 80-90%, achieving a high value of πch can at times prove more challenging. - Linearity is required in order to minimize harmonics and spurious products to nearby wireless communication systems. This implies use of linear power amplifiers, high selectivity filters.
