- #1
diff_edge
- 5
- 0
I've a small wind turbine that is rated at about 24V. The turbine produces AC voltage but it's got an internal recifier converting this to DC. I need to create an embedded system that measures the output of this turbine displaying AC voltage, current and power output.
I did some research online and have come to the conclusion that I might need specific programmable IC's (Microchip for example has one). However, they need external current transformers to tap into the main output of the turbine. Also, they need to be programmed separately (apart from the microcontroller that I'll be using). At least, that is how I understood.
I was wondering, since the turbine has an internal rectifier(unfiltered) converting the output to DC, can I not simply measure the DC parameters? Voltage is easy (an ADC should do). Current? Current sensors are easy to find. So, power = voltage * current.
But, this is under the assumption that AC parameters (voltage and current) are linearly related to DC paremeters after passing through a bridge rectifier. Is this correct?
I did some research online and have come to the conclusion that I might need specific programmable IC's (Microchip for example has one). However, they need external current transformers to tap into the main output of the turbine. Also, they need to be programmed separately (apart from the microcontroller that I'll be using). At least, that is how I understood.
I was wondering, since the turbine has an internal rectifier(unfiltered) converting the output to DC, can I not simply measure the DC parameters? Voltage is easy (an ADC should do). Current? Current sensors are easy to find. So, power = voltage * current.
But, this is under the assumption that AC parameters (voltage and current) are linearly related to DC paremeters after passing through a bridge rectifier. Is this correct?