author
1Instructables1,289Views11CommentsTrivandrum, Kerala, IndiaJoined July 14th, 2015

Tell us about yourself!

Complete Your Profile
  • Here is one solution I think may work, however its bit more expensive than I first imagined, I wish someone could simplify it, I will use 400v capacitor and zener diode circuit to convert 240v to 12v DC, for the second part I would need to add 12v dc to ac pure sine wave to generator. I think that will limit current flow to a great extent as there are more ways to limit power draw in DC electronics than AC, or is it too much thinking :) ?

    View Topic »
  • Thanks again, but I did try to read up how they function, and circuit digging is not an option, since there is too much involved, they first detect power source and sync up with the grid A/C waveform to push power back to the grid and by no means a simple feat. Moreover it voids warranty on the microinverters. For a cloudy day, I could compensate by increasing the number of panels installed, so each panel will produce a minimum threshold. But the using the old system is a no go, due to the inherent disadvantages, and it is very costly when compared to micro inverters, and does not scale and acts as a single point of failure and even partial shading in one solar panel reduces the output of all panels, best output = weakest link. So we must make this new technology work, and an A/C l...

    see more »

    Thanks again, but I did try to read up how they function, and circuit digging is not an option, since there is too much involved, they first detect power source and sync up with the grid A/C waveform to push power back to the grid and by no means a simple feat. Moreover it voids warranty on the microinverters. For a cloudy day, I could compensate by increasing the number of panels installed, so each panel will produce a minimum threshold. But the using the old system is a no go, due to the inherent disadvantages, and it is very costly when compared to micro inverters, and does not scale and acts as a single point of failure and even partial shading in one solar panel reduces the output of all panels, best output = weakest link. So we must make this new technology work, and an A/C limiting device on the grid source should suffice, unless such a thing does not exist or cannot be made.

    Grid usage is very expensive, so I am trying to limit usage, that is the primary reason in limiting the consumption.

    Thanks for your comments, you are right, it was meant to work with the grid, but the problem is that in third world countries, the grid goes offline from 1-8 hours per day, so when you have a lot of sunshine, it will be silly if we cannot utilize our solar system it when the grid is down during the day, so I have the automatic transfer switch to fix this problem where an inverter kicks in and pure sine wave is fed to the micro inverters to activate them. The minimum power bills for any average shop is around 2000USD, and one tenth for homes, which is daylight robbery, so the primary purpose is to not utilize the grid, if the grid is down I want to tap into the backup inverter to just activate the micro grid tie inverters, but what I am not able to fix is that the load should not draw p...

    see more »

    Thanks for your comments, you are right, it was meant to work with the grid, but the problem is that in third world countries, the grid goes offline from 1-8 hours per day, so when you have a lot of sunshine, it will be silly if we cannot utilize our solar system it when the grid is down during the day, so I have the automatic transfer switch to fix this problem where an inverter kicks in and pure sine wave is fed to the micro inverters to activate them. The minimum power bills for any average shop is around 2000USD, and one tenth for homes, which is daylight robbery, so the primary purpose is to not utilize the grid, if the grid is down I want to tap into the backup inverter to just activate the micro grid tie inverters, but what I am not able to fix is that the load should not draw power from the grid and solar, but I need to figure out something that can increase resistance to the grid thereby lower consumption from grid. Primarily this solution is to work only during the day, and not for night usage for powering air conditioners and other machinery. The focus is to exponentially expand the number of panels required to support any industry as a one time investment and allow scaling if required with an affordable and modular approach..

    Thanks my friend, however we don't have winters ;)

    View Topic »
  • Thanks for the response, however, four or two quadrant power supply does not provide what I need which is the AC limiting function, I don't know if that can be done, to simply reduce the amperage drawn from grid and keep the same voltage. The only function I need to complete this equation is something to reduce the load on the grid. Kindly advise.

    I checked the logic, but if I understand correctly the power flows through one way cutting off the other, but what I need is where both flows are active, but power is drawn mainly through one source which is solar, and a limited amount from grid source to keep the whole system active, so I need both power sources active, but I need to limit one, not close it off completely. I cannot find the right solution yet. Someone told me once that the flow of current is like a pipeline, and by increasing and limiting the diameter of the pipe you are essentially increasing and reducing the flow that is what I want to translate into my model, but since I'm not an electrical engineer, it takes me more time to read and grasp concepts.

    View Topic »