4 FAQs about Solar power station energy storage current detection
Why do solar panels need current sensors?
Current sensors are needed throughout grid-tied systems for control of the converters and inverters, optimization of power extraction from solar panels, and fault detection for safety. PV systems For a grid-tied photovoltaic system, the conversion of energy from solar panels is usually done in two stages.
How does a grid-tied photovoltaic system work?
PV systems For a grid-tied photovoltaic system, the conversion of energy from solar panels is usually done in two stages. First, a DC / DC converter is used both to convert the voltage from the panel or array to something close to the grid voltage, as well as to maximize the power extracted from the panels.
Why do you need a power grid sensor?
The sensors must not only accurately measure both AC and DC currents, they must have high dynamic performance: very fast response times are needed to react quickly to any change in the grid, shutting off or disconnecting the system in the case of a short circuit (that is, ground fault) or loss of the grid connection (anti-islanding).
How can a high-precision current sensor be used?
While one could use an expensive, high-precision current sensor, it is also possible to achieve high accuracy by using one or more economical current sensor ICs in conjunction with the microprocessor already necessary for the system. The on-board intelligence can be used to calibrate out offset error.