Common mode voltage reduction with a modified hysteresis current control strategy

2011 ◽  
Author(s):  
M. Ebrahim Adabi ◽  
Abolfazl Vahedi
Keyword(s):  
Control Strategy ◽  
Current Control ◽  
Common Mode ◽  
Hysteresis Current Control ◽  
Common Mode Voltage

The Simulation Study of Permanent Magnet Synchronous Motor and its Hysteresis Current Control Based on AMESim

2014 ◽  
Vol 700 ◽  
pp. 678-681
Author(s):  
Yu Lan Li ◽  
Tie Zhu Zhang ◽  
Hong Zhao ◽  
Ji Zhang
Keyword(s):  
Permanent Magnet ◽  
Control Strategy ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Current Control ◽  
Impedance Matrix ◽  
Hysteresis Current Control ◽  
Advantages And Disadvantages ◽  
The Mathematical Model ◽  
Motor Model

The paper gives a brief introduction of the permanent magnet synchronous motor (PMSM). The author gives the mathematical model under the simplified conditions and the PMSM rotor and stator impedance matrix. Besides, the author used AMESim to build a synchronous motor model on the basic of hysteresis current control strategy and set the parameters. A simulation was carried out and advantages and disadvantages of hysteresis current control strategy were analyzed.

Implementation of Coupled Inductor Based 7-level Inverter with Reduced Switches

2017 ◽  
Vol 8 (3) ◽  
pp. 1294 ◽  
Author(s):  
R. Palanisamy ◽  
K. Vijayakumar ◽  
Aishwarya Bagchi ◽  
Vachika Gupta ◽  
Swapnil Sinha
Keyword(s):  
Output Voltage ◽  
Control Algorithm ◽  
Harmonic Distortion ◽  
Current Control ◽  
Output Current ◽  
Hysteresis Current Control ◽  
Common Mode Voltage ◽  
Voltage Stress ◽  
Dsp Controller ◽  
Switching Devices

<p>This paper proposes implementation of coupled inductor based 7 level inverter with reduced number switches. The inverter which generates the sinusoidal output voltage by the use of coupled inductor with reduced total harmonic distortion. The voltage stress on each switching devices, capacitor balancing and common mode voltage can be minimized. The proposed system which gives better controlled output current and improved output voltage with diminished THD value. The switching devices of the system are controlled by using hysteresis current control algorithm by comparing the carrier signals with constant pulses with enclosed hysteresis band value. The simulation and experimental results of the proposed system outputs are verified using matlab/Simulink and TMS320F3825 dsp controller respectively.</p>

Analysis and Suppression of Common-Mode Voltage in Open-End Winding Induction Motor Drive System Fed by Dual Inverter

2014 ◽  
Vol 986-987 ◽  
pp. 1048-1053
Author(s):  
Qun Tao An ◽  
Guang Lin Wang ◽  
Ming Hang Duan ◽  
Li Sun
Keyword(s):  
Induction Motor ◽  
Fault Tolerant ◽  
Current Control ◽  
Induction Motor Drive ◽  
Multilevel Converters ◽  
Common Mode ◽  
Common Mode Voltage ◽  
New Space ◽  
Motor Drive System ◽  
Open End Winding

Dual inverter fed open-end winding induction motor (OEW-IM) is a new solution for multilevel drive. Comparing with traditional multilevel converters, the dual inverter is being interested in for its more flexible current control, the absence of fluctuating neutral point, and fault-tolerant capability. This paper analyzes the potential common-mode voltage (CMV) in the open-end winding induction motor system, and proposes a new space vector PWM (SVPWM) strategy to reduce the CMV. The proposed method is validated by simulations and experiments.

Model Predictive Current Control of a Three-Phase T-Type NPC Inverter to Reduce Common Mode Voltage

2017 ◽  
Vol 27 (02) ◽  
pp. 1850028 ◽  
Author(s):  
Eedara Aswani Kumar ◽  
Koritala Chandra Sekhar ◽  
Rayapudi Srinivasa Rao
Keyword(s):  
Control Method ◽  
Current Control ◽  
Computationally Efficient ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Bias Factor ◽  
Three Phase ◽  
Objective Model ◽  
Control Set ◽  
Peak Value

This paper presents a reduced control set model predictive control (RCSMPC) method for three-phase T-type neutral-point-clamped (NPC) inverter. The whole control set (WCS) consists of all the 27 switching states of T-type NPC inverter. The reduced control set (RCS) with 19 switching states is formed from WCS by excluding the switching states with common mode voltage (CMV) value higher than one-sixth of input DC voltage [Formula: see text]. With RCS, single-objective model predictive current control method can restrict the CMV peak value to [Formula: see text]. To further reduce the CMV below this threshold, a cost function with the weighted sum of two control targets is formulated in the RCSMPC method. The two control targets of RCSMPC method are CMV mitigation and load current control. The weight for CMV is called bias factor. The RCSMPC method is computationally efficient, as the number of switching states is less than that of WCSMPC. To further reduce the computational burden, CMV values corresponding to all the switching states are calculated offline and stored in memory. Robustness of both the methods is investigated with parameter deviations at different bias factors and reference currents. The proposed method is validated using simulation and experimental results and compared with the existing methods.

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