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Inverter Voltage measurement

lyledunn

Suppose I have an inverter 150m from intake. When delivering output, how does it establish and continue to monitor the reference grid voltage? 

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    As   says, the inverter operates based on the voltage at its terminals, and knows the current it's driving out (so knows the 'overdrive voltage' to provide.

    The reason for the 1 % volt-drop (or what is in effect "voltage rise" over the grid voltage) is that you can get the situation where the inverter is dropping out repeatedly because it has an upper "overvoltage trip" threshold according to G98/G99, if it has to drive over too long a line to reach the grid.

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    As   says, the inverter operates based on the voltage at its terminals, and knows the current it's driving out (so knows the 'overdrive voltage' to provide.

    The reason for the 1 % volt-drop (or what is in effect "voltage rise" over the grid voltage) is that you can get the situation where the inverter is dropping out repeatedly because it has an upper "overvoltage trip" threshold according to G98/G99, if it has to drive over too long a line to reach the grid.

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