Automatic voltage stabilizer with arduino that will show AC voltage, watt, steps, transformer temperature & auto fan on-off on LCD display
Introduction of codes, & what it will do
It will monitor AC voltage through pin A0 of arduino and control which relay to be active in that time. Example -> If arduino get 199VAC then it will active relay 1 which will increase voltage to 219VAC. In brief if voltage is less than 210 and also greater than 180 it will active relay 1 which will boost 20V, If voltage is greater than 210 and less than 230 it will deactivate relay 1.
The monitoring AC voltage will also display on LCD, and it also display output voltage by adding steps voltage to input voltage which will show the output voltage. Note:- output voltage is less accurate when more load is connect because there is no sensor on output voltage.
ACS712 module sense how much current is drawn from output, then arduino will calculate in watt and show in to the LCD display. Note: - You Have to include ACS712 Library.
It also monitor temperature of the transformer, if temperature is getting high of the set point, it will turn on the fan.
Make this stabilizer Follow Instructables -> https://www.instructables.com/id/How-to-Make-AC-220-Volt-Automatic-Stabilizer-Using/
| AC_stabilizer_Complex_No_V_difference.ino | AC_stabilizer_EASY_With_V_difference.ino |
|---|---|
| This ino file program is written in complex method, user can only change the variable that is declare. This ino file is missing delay function, which is used to trigger relay in specif voltage difference. Although Its is safe but as there is no voltage difference, relay will trigger abnormally if voltage is hanging in between trigger voltage. | This ino file program is written in easy method, users have to change value in function as well as in variable. This ino file is contain delay function, which is used to trigger relay in specif voltage difference. And it much safer and protects current spikes and fluctuation from rapid relay trigger. |
Voltage difference is worked based on the gap of set value eg- if((input_voltage_show <= 200) && (input_voltage_show >= 180)){step-1} if((input_voltage_show <= 175) && (input_voltage_show >= 160)){step-2}
The difference of 5V is the thing that we need, because when we pull pin Low, it will remain Low until it will get pull high. So we dont have to give continious cycle of pulling Low. So if voltage swing in between 180 - 175 it will not do any thing and use last state untill it fall below or up the values.
It is good to use voltage difference, it will prevent rapid transformer step change or continious relay trigger if voltage swing between set voltage. And it will also protect relays.