An inverter is a device that converts DC power (batteries, accumulators) into AC power (usually 220V,50Hz sine wave). It consists of inverter bridge, control logic and filter circuit. Widely used in air conditioning, home theater, electric grinding wheel, power tools, sewing machines, DVD, VCD, computers, TV, washing machines, range hoods, refrigerators, VCRs, massagers, fans, lighting and so on.
In foreign countries, due to the high popularity of automobiles, you can use the inverter to connect the battery to drive the electrical appliances and various tools to work when you go out for work or traveling. Through the cigarette lighter output car inverter is 20W, 40W, 80W, 120W to 150W power specifications. The larger power inverters should be connected to the battery through the connecting cable.
Connecting household appliances to the output of the power converter allows you to use a variety of appliances in the car. The electrical appliances that can be used are: cell phones, notebook computers, digital cameras, video cameras, lighting, electric shavers, CD players, game consoles, PDAs, power tools, car refrigerators and various travel, camping, medical emergency appliances.
Expanded Information:
The role of the inverter
1, the maximum power tracking function, to ensure that the output power is maximized
The current and voltage of the solar panels are with the intensity of the solar radiation and the temperature of the solar cell module itself, and the change. Therefore, the output power will also change. In order to ensure that the output power is maximized, it is necessary to obtain the maximum output power of the panel as much as possible. The MPPT tracking function of the inverter is designed for this feature.
MPPT tracking is also known as maximum power point tracking, and it has been estimated that a system equipped with MPPT tracking can generate up to 50% more power than a system without MPPT tracking. So, if you want the PV system to generate more electricity, don't just look at the solar panels, how much of the electricity generated by the solar panels can be effectively output in the end, it still depends on the inverter.
2, anti-alone function, to protect the safety of the grid
Many people in the installation of photovoltaic systems, are holding the "even if the power grid blackout, their homes can also use the electricity mentality, do not know, the grid blackout, their own home PV system will also stop running. The reason for this phenomenon is that the inverter is now generally configured with anti-islanding device, when the grid voltage is 0, the inverter will stop working.
3, according to the output power of the solar panels, automatic operation and shutdown
After sunrise in the morning, the intensity of solar radiation gradually increased, and the output of solar cells also increased, when the output power required for the inverter to reach the work of the inverter, the inverter will automatically start running. After entering into operation, the inverter monitors the output of the solar cell module all the time, as long as the output power of the solar cell module is greater than the output power required for the inverter to work, the inverter will continue to run; until the sunset shutdown, even if it is cloudy and rainy day, the inverter can also run. When the output of the solar cell module becomes smaller and the output of the inverter approaches 0, the inverter forms a standby state.
Baidu Encyclopedia - Inverters