Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

[PIC] Power factor measurement logic & program using PIC 16F877A

Status
Not open for further replies.

Shreedhar Bhat

Newbie level 6
Joined
Mar 17, 2014
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
68
I need a help.. Power factor measurement logic & program using PIC 16F877A..

My project is to automatic power factor controller,
My approach is to find out the zero crossing of both Current and Voltage,
find out the time difference and then calculate the angle..

Please elaborate this logic step by step..
*How to calculate angle using time difference?
& help me for coding..


Thank you..
 

Shreedhar Bhat

Newbie level 6
Joined
Mar 17, 2014
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
68

Shreedhar Bhat

Newbie level 6
Joined
Mar 17, 2014
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
68
Re: Power factor measurement logic & program using PIC 16F877A

Where is your code?

Flowcode..

- - - Updated - - -

How to measure phase difference between Voltage & current using pic 16F877A.?
Please help me..

Thank you..
 

Amin Khorsandi

Member level 2
Joined
Oct 12, 2013
Messages
45
Helped
5
Reputation
10
Reaction score
5
Trophy points
8
Activity points
293
I highly recommend you to change your idea about measuring the PF. the zero crossing detection and phase calculating is not appropriate for non-linear consumers. for example if you want to calculate a switching power supply PF, you cant do it because the current shape in not a sine wave and your measurement will be incorrect.
the best way is to calculate apparent and effective power and calculate PF by dividing them.
that's the thing I did in the same project in my company.
 

milan.rajik

Banned
Joined
Apr 1, 2013
Messages
2,528
Helped
540
Reputation
1,078
Reaction score
524
Trophy points
1,393
Activity points
0
Flowcode PIC doesn't have trigonometric functions. You have to implement it.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top