Solar Inverter System
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In a photovoltaic grid-connected project, the role of the inverter is to convert the voltage into AC 220V or 380V for the grid, since the transformer will raise the voltage again
- Unless the power is not issued for their own use, is to be sent to other areas, it needs to boost, such as the western region of those large power stationss
What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
- Grid-connected inverter does not need energy storage, but the energy can not be controlled, how much light to send online to the number of online, simply do not want people to the grid does not like.s
Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
- In foreign countries due to the higher penetration rate of the car to go out to work or travel can be connected with the inverter battery drive electrical and various tools work.s
How the output voltage of the PV inverter and the grid-connected voltage are determined
- DC voltage and AC side voltage does not matter, the general PV inverter AC output is 400V / N / PE. With no isolation transformer and output voltage does not matter, grid-connected inverter is the regulation of current, and network voltage depends on the grid voltage. And the grid before the inverter will detect the grid voltage, meet the conditions will be network.s
Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
- In addition to the function of converting DC current into alternating current, the inverter also has the maximum output tracking function (MPPT), overvoltage protection, short circuit protection, island protection, overheat protection, overload protection and DC groundings
PV grid-connected inverter can directly load it?
- Grid-connected inverter is usually equipped with island protection function, can only receive the power grid, if the load directly, the output is disconnected.s
PV grid-connected inverter and independent inverter in the control of what is the difference
- The independent inverter in the output voltage phase amplitude of the frequency control is initially set good. Independent inverter, you should refer to off-grid inverter, do not need to consider the grid situation.s
What is the PV inverter starting voltage
- Inverter is a kind of semiconductor device composed of power adjustment device, mainly used for DC power into AC power. Generally consists of boost circuit and inverter bridge circuit. The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for the inverter output control. The inverter bridge circuit converts the boosted DC voltage to the AC voltage of the common frequency. The inverter is mainly composed of a switching element such as a transistor, and turns the DC input into an AC output by repeatedly turning ON-OFF the switching element in a regular manner. Of course, it is not practical to simply output the inverter output waveforms from the on and off circuitss
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