Electric Motors and Controllers for Use in ... - CAFE Foundation

More documents

Recommendations

Info

At a greatly oversimplified level, brushless electric motors are controlled through two different means, use of a trapezoidal wave form, or the digitized equivalent of a sinusoidal wave form. The trapezoidal form causes greater motor noise in operation, and less smoothness of running than the sinusoidal form. It is simpler, however, and is resistant to harmonics problems that the sinusoidal motor control can experience. Only one motor in this survey uses this wave pattern – the Yuneec motor from China, used on paramotors and an anticipated twin-motor ultralight g aircraft. All other motors use a sinusoidal wave form, with different design approaches to read the back emf or sense Hall effect sensors to determine the rotor position and synchronize the triggering of, usually, MOSFETs to energize the coils in the motor. San Carlos, April 24, 2009 30
Patrick McLaughlin of Mountain High Oxygen in Redmond, Oregon, is developing a range of controllers independently from other motor projects. He wants to provide a range from 20kW to at least 90kW, and further. These units can be used as servo or stepper controllers if desired. http://www.mountainhighoxygen.com/ San Carlos, April 24, 2009 31
Page 1 and 2: This is my presentation for the Thi
Page 3 and 4: “The many experiments made during
Page 5 and 6: This book, a compilation of article
Page 7 and 8: Following a heart attack in April,
Page 9 and 10: Most model motors in the size range
Page 11 and 12: “The servo signal is a simple dig
Page 13 and 14: Inrunners tend to be more efficient
Page 15 and 16: Plettenberg has an interesting spin
Page 17 and 18: The DMSV (Deutscher Motorschirm Ver
Page 19 and 20: Installed on the PAP1400 powered pa
Page 21 and 22: This simple operational drawing of
Page 23 and 24: This cutaway of a Lynch Motor shows
Page 25 and 26: Randall Fishman won best new design
Page 27 and 28: Mark Brierle pulled into Tehachapi,
Page 29: APAME and ACV are now working on th
Page 33 and 34: KLD Energy Technologies, located in
Page 35 and 36: Apex Drive Laboratories uses a dual
Page 37 and 38: “The controller can commutate the
Page 39 and 40: “Sicme Motori, technological part
Page 41 and 42: Combining a Rotax 914 with a motor
Page 43 and 44: This motor is promising because of
Page 45 and 46: One must consider the total cost of
Page 47 and 48: From the University of London Press
Page 49 and 50: In a discussion with Alan Fishman,
Page 51 and 52: M My friend f i d and d mentor, t M

Electric Motors and Controllers for Use in ... - CAFE Foundation

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?