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My algorithm is very much simple. i am just increasing the amplitude after every 50hz complete cycle by changing the SPWM array till it reaches max required amplitude. i have tried to reduce the startup time by exponentially increasing the amplitude but same inrush current problem occur.
Sir i have similar problem like yours instead there is also grid involved. Also i have used toroidal transformer of 6kva which has huge inrush current. For huge inrush current i have designed softstart algorithm. which is working fine. but the real problem is that when there is transition from...
When switching from main A.C. to inverter using soft start of about 0.5Sec to 1 Sec, dont you think that there will be another problem that switching delay can cause loads like computers to power-off.
Hello
i have made transformer based pure sine wave inverter by generating spwm from microcontroller. so i am trying to make this simple inverter to work as 'on grid' inverter.
what changes are required.
regards
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