(1) The research of cable shielding structures, including various types of cable shielding materials, forms or composite structures, generally include: 1 metal tubular structure; 2 wire braid (different weaving density) structure; 3 wire winding (different density) structure; 4 metal Membrane pressure edge winding (or vertical package) structure; 5 steel tape armored structure; 6 metal plating (including physical or chemical plating) structure; 7 semi-conductive shielding material shielding; 8 conductive paint film structure; 9 above combination structure.
(2) Mathematical models and engineering calculation methods for shielding effects of different cable shielding structures under different frequency bands or different field sources.
(3) Different transmission forms of wire and cable, including: 1 twisted pair; 2 twisted pair shield; 3 star twisted; 4 star twisted shield; 5 coaxial structure; 6 double coaxial symmetric RF structures (partial shield plus total shield); 7 Triaxial structure; 8 Coupling of leaky cables (using electromagnetic coupling).
(4) How to ground and ground the effect of different cable transmission types.
(5) Electromagnetic compatibility tests, including electromagnetic interference testing, electromagnetic sensitivity testing, and shielding effectiveness testing.
A hybrid inverter is an inverter that combines the functions of an inverter and a charge controller. Its main function is to simultaneously process the direct current generated by solar panels and the electric energy of the battery energy storage system in a photovoltaic power generation system. It converts the direct current generated by the solar panels into alternating current for power and stores the excess power in the battery so that it can continue to supply power when needed.
Main effect:
Solar power generation: Hybrid inverters convert the direct current generated by solar panels into alternating current for home, commercial, or industrial electricity needs.
Battery energy storage: The hybrid inverter is equipped with a battery energy storage system that can store excess solar power. When the Solar Panel cannot generate enough electricity, the electricity stored in the battery can continue to supply electricity to achieve a continuous power supply.
Grid-connected function: Some hybrid inverters also have grid-connected functions, that is, the excess electric energy is integrated into the grid for use by other users. This allows them to interact with the grid, be self-sufficient, and export electricity to the grid.
Differences from other inverters:
Charging control function: The hybrid inverter combines the functions of an inverter and a charge controller, and can simultaneously process the DC power of the solar panel and the DC power of the battery energy storage system, realizing the hybrid application of solar power generation and battery energy storage.
Standalone operation: Unlike microinverters, hybrid inverters can operate independently and do not require an inverter for each solar panel, so it may be more economical and convenient when the system is larger.
Applicable scenarios: Hybrid inverters are widely used in home, commercial, and industrial photovoltaic power generation systems, especially in hybrid application scenarios that require photovoltaic power generation and battery energy storage.
In general, the main function of the hybrid inverter is to convert the direct current of the solar panel and the battery energy storage system into alternating current, so as to realize the hybrid application of photovoltaic power generation and battery energy storage. Compared with other inverters, it has higher flexibility and reliability in energy management and power supply stability.
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