scholarly journals A voltage sensorless control method to balance the input current of the boost rectifier under unbalanced input voltage condition

2003 ◽  
Author(s):  
S. Chattopadhyay ◽  
V. Ramanarayanan
Keyword(s):  
Control Method ◽  
Sensorless Control ◽  
Input Voltage ◽  
Input Current ◽  
Boost Rectifier

A Duty Cycle Adjustment Strategy for Embedded Boost Power Factor Correction

2013 ◽  
Vol 392 ◽  
pp. 682-686
Author(s):  
Lei Shi ◽  
Hong Kun He ◽  
Lin Bo Wang ◽  
Jin Jin Yang ◽  
Qian Ni Feng
Keyword(s):  
Power Factor ◽  
Duty Cycle ◽  
Control Method ◽  
Power Factor Correction ◽  
Input Voltage ◽  
Sinusoidal Signal ◽  
Input Current ◽  
Test Results ◽  
Adjustment Strategy ◽  
Sinusoidal Waveform

The embedded boost power factor correction (PFC), which is realized by a storable duty cycle control method, has been verified that it can achieve good performance when the input voltage is standard sinusoidal signal. But the input current can not keep the good sinusoidal waveform all the time when the amplitude of the input voltage changes. In order to solve the problem, this paper presents a duty cycle adjustment strategy for embedded boost power factor correction. This strategy can adjust the duty cycle data synchronously when the amplitude of the input voltage changes. Its test results show that the adjustment strategy can achieve better performance to make the input current follow the shape and phase of the input voltage. The proposed duty cycle adjustment strategy can get the embedded boost power factor correction more effective and practical.

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