Thank you for this excellent article over viewing the different methods of generation and connection. I found the information on Synchronous Generators especially helpful. I added this article to my bookmarks. I am an inventor and work designing Mega Watt windmills
how is generator rotor speed is maintained constant when wind speed is changing which changes rotor speed of wind turbine which in turn changes the rotor speed of the generator
when wind speed changes wind turbine rotational speed changes which in turn changes the rpm of the generator rotor.But how you are telling that rpm of generator is fixed and wont change.
Synchronous Generators are “synchronised” (hence their name) with the mains supply before connection. During the start-up or low wind speed, the rotor speed and therefore the stator frequency is different from the mains supply frequency. Therefore a synchronous generator needs to be synchronised first using an external DC current to excite the rotor field as explained in the tutorial. Asynchronous electrical machines do not require any such synchronisation process.
KAKOOSIL THOORI NJAN
Sir . What is beetween difference pmg and emg
PMG means: Permanent Magnet Generator EMG means: Electric or Electrical Motor Generator
Can we connect the fluctuating AC input of wind turbine synchronous generator to AVR for voltage regulation .??? Some of these AVR gives constant 220 V with the input goes down to 90 V ???
An Automatic Voltage Regulator, or AVR, takes a fluctuating voltage input and turns it into a constant voltage output, so it could, in theory, be used with a wind turbine generator. But there are many types of AVR’s so please consult the manufacturers datasheet first.
Thank you for the response . I will try to get more info on those AVRs.
Could we connect PMSG with diode rectifier and only capacitor in dc link ..then inverter to the grid…without chopper or any power electronic in dc link?? I didn’t find any topology like that in research papers.
Yes, AC is converted to DC by rectifier and capacitor smooths the DC for the inverter.
Hi guys: If we can make power converter to get dc by using diodes as bridge rectifier, can we use diodes to make power inverter?? If that is possible,please releated diagram??
Diodes can not convert DC to AC.
Hi guys: Can we hook up the power inverter directly to the bridge rectifier outlet (and a smoothing capacitor in between if possible) to get ac power outlet..? In any of the wind turbine systems??? Thank you
Yes you could do that.
By power inverter i meant the ones that used with batteries . I think those ones should have stable inlet 12,24 or 48 volts ???
And another thing, What if we connect the AVR directly to the variable frequency /voltage AC inlet to get stable AC .??? In some AVR it is said that it can produce constant 220 volts output even with inlet drops up to 100 volts????
Consult the manufacturers specifications of the inverter
I am trying to find out how much the actual rotor or generator ways that produces 1.5 – 2 MW of power.
Sir I want 1500watt 24v to 40v brush less wind turbine generator. This type of motor i want to e-bike. If you have this type of motor, give me information and details.
I am looking for a genhead for making a tidal stream generator 10kw: any suggestion ..please.
So what really is the advantages of using synchronous generators for wind power systems, in both family scale and medium size scale ?
Will the harmonics due to uncontrolled rectifier circuit affect the permanent magnet?
No, any harmonics generated due to the switching of the rectifier will be on the output side.
In the top 10 of my favorite articles, thanks!
So does this PSMG required a gearbox? Not clear about that
Hi Ken, It really depends on the type of permanent magnet synchronous generator you have and the speed at which it needs to rotate. The low rotational speed of the wind turbines rotor blades can be increased through the use of a gearbox which will allow the generator speed to remain more constant, but the downside is that a gearbox will reduce efficiency as extra wind energy is required to drive the gearboxes cogs.
Your email address will not be published. Required fields are marked *
What's the Answer * 2 × 6 =