scholarly journals Method for reducing waveform distortion by increasing damping strength for electromagnetic vibrators

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035015
Author(s):  
Lu Zhang ◽  
Yuntao Qiu ◽  
Liang Chen ◽  
Ning Zhang ◽  
Xikai Liu ◽  
...  
Keyword(s):  
Waveform Distortion

Full-waveform distortion characteristics of photon counting Lidar at different dead-time

Optik ◽  
2020 ◽  
Vol 223 ◽  
pp. 165448
Author(s):  
Ahui Hou ◽  
Yihua Hu ◽  
Nanxiang Zhao ◽  
Jiajie Fang ◽  
Shilong Xu ◽  
...  
Keyword(s):  
Dead Time ◽  
Photon Counting ◽  
Full Waveform ◽  
Waveform Distortion

Research of Simulation in the Main Circuit of Static Var Generator Based on Cascade H-Bride

2013 ◽  
Vol 392 ◽  
pp. 409-412
Author(s):  
Xian Bin Dai ◽  
Xiao Hua Yuan ◽  
Wei Du
Keyword(s):  
Output Voltage ◽  
Power Index ◽  
Matlab Simulation ◽  
Voltage Waveform ◽  
Distortion Factor ◽  
Harmonic Content ◽  
Three Phase ◽  
Static Var Generator ◽  
Waveform Distortion ◽  
Working Principle

This paper introduces the working principle of the research of simulation in the main circuit of Static Var Generator based on Cascade H-Bride and takes the three-phase Static Var Generator based on cascade H-Bride with rated capacity 10kVar,rated voltage 380V for example to proceed the MATLAB simulation. The research shows that the more amount of cascade H-Bride, the more number of output voltage levels in the main circuit of Static Var Generator, the smaller value of voltage waveform distortion factor, and the less harmonic content be inject in electric network, which improves power index.

scholarly journals Study of Direct Torque Control Scheme for Induction Motor Based on Torque Angle Closed-Loop Control

2015 ◽  
Vol 9 (1) ◽  
pp. 600-609
Author(s):  
Xuande Ji ◽  
Daqing He ◽  
Yunwang Ge
Keyword(s):  
Induction Motor ◽  
Closed Loop ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Torque Control ◽  
Closed Loop Control ◽  
Current Waveform ◽  
Loop Control ◽  
Waveform Distortion ◽  
Torque Angle

For disadvantages of the large flux and torque ripple and current waveform distortion of Direct Torque Control (BASIC-DTC), the DTC scheme for induction motor based on torque angle closed-loop control was presented and the proposed scheme was realized with three methods of torque angle closed-loop control. The main characteristics of three methods of torque angle closed-loop control for the proposed scheme was analyzed, emphasizing their advantages and disadvantages. The performance of three methods of torque angle closed-loop control for the proposed scheme was studied in terms of flux and torque ripple, current waveform distortion and transient responses. Simulation results showed that the proposed scheme improves the performance of induction motor BASIC-DTC by combining low flux ripple, low torque ripple and low current waveform distortion’s characteristics with fast dynamics.

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