Detecting Power Grid Synchronization Failure on Sensing Frequency or Voltage Beyond Acceptable Range
The project is designed to develop a system to detect the synchronization failure of any external supply source to the power grid on sensing the abnormalities in frequency and voltage.
There are several power generation units connected to the grid such as hydel, thermal, solar etc to supply power to the load. These generating units need to supply power according to the rules of the grid. These rules involve maintaining a voltage variation within limits and also the frequency.
If any deviation from the acceptable limit of the grid it is mandatory that the same feeder should automatically get disconnected from the grid which by effect is termed as islanding. This prevents in large scale brown out or black out of the grid power. So it is preferable to have a system which can warn the grid in advance so that alternate arrangements are kept on standby to avoid complete grid failure.
This system is based on a microcontroller of 8051 family. The microcontroller monitors the under/over voltage being derived from a set of comparators. As the frequency of the mains supply cannot be changed, the project uses a variable frequency generator (555-timer) for changing the frequency, while a standard variac is used to vary the input voltage to test the functioning of the project.
A lamp load (indicating a predictable blackout, brownout) being driven from the microcontroller in case of voltage/frequency going out of acceptable range
Further the project can be enhanced by using power electronic devices to isolate the grid from the erring supply source by sensing cycle by cycle deviation for more sophisticated means of detection.
- Easy to use, Self-explanatory kit.
- All-inclusive solution kit.
- Extensive audio-visuals available.
- Branding-free material.
- Pre-programmed Microcontroller.
- Voltage/Frequency Change Detection.
- Call/mail for Tech Support from 10 am - 7 pm.
- Can be Customized for Arduino, Raspberry Pi, PIC
- 8051 series Microcontroller
- 555 timer
- Voltage Regulator
- Slide Switch
- Keil compiler
- Language: Embedded C or Assembly.
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In my engineering days, we used to struggle replicating a PCB model from our text books with real tools. We had a tough time with the circuits and most of the time - they used to fail. So I wanted to solve this problem not just for myself but for all my fellow students like you. Young, energetic and knowledgeable youth who really want to learn but still cannot afford to fail with the project because it matters and the colleges rarely help us out productively.
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"I live in Hyderabad, a place that is known for engineering colleges. Went with frnd and bought a set from Ameerpet(tht hs rdymade stuff like this) and it failed just b4 viva. Thats when we got this thx to a senior who is sorta like a geek.. and let me tell u.. Its one reason why me and my frnds got thru the final sem. Works great and is useful too later.. "Ravi Teja
Order No: HYF1290
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Order No: BLR2933
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Order No: BQF3698
Q: What is power grid synchronization failure?
A: Power grid synchronization is failure at the power station in maintaining the grid voltage and frequency parameters.
Q: Can this system be directly connected to any grid?
A: No, it is only a concept demonstrating how the control system works in power grid
Q: Which microcontrollers are used in this project?
A: 40 pin 8051 microcontrollers are used in this project.
Q: What is the formula for calculating smoothing capacitor value?
A: There is some approximated formula .Peak to peak ripple voltage = Load current in amps / (2*line frequency in hertz *capacitance in farads). But as rule of thumb for 1 A current 1000uF is best. Thus it is load dependent.
Q: What to do when the lamp fails and what is the maximum lamp rating that can be used?
A: If the lamp fails one can use any lamp or bulb which is used in homes up to 100W. We suggest you to go for low watt bulbs.