Improving Performance of Three-Phase Slim DC-Link Drives Utilizing Virtual Positive Impedance-Based Active Damping Control

Abstract

In this paper, a virtual positive impedance (VPI) based active damping control for a slim DC-link motor drive with 24 section space vector pulse width modulation (SVPWM) is proposed. Utilizing the proposed control and modulation strategy can improve the input of current total harmonic distortion (THD) while maintaining the cogging torque of the motor. The proposed system is expected to reduce the front-end current THD according to international standards, as per IEC 61000 and IEEE-519. It is also expected to achieve lower cost, longer lifetime, and fewer losses. A permanent magnet synchronous motor (PMSM) is fed by the inverter, which adopts the 24 section SVPWM technique. The VPI based active damping control for the slim DC-link drive with/without the 24 section SVPWM are compared to confirm the performance of the proposed method. The simulation results based on MATLAB are provided to validate the proposed control strategy.

Design and Parameter Tuning of Nonlinear Active Disturbance Rejection Controller for Permanent Magnet Direct Drive Wind Power Converter System

“…Therefore, combined with engineering experience,  in the third-order nonlinear ESO of equation 12 cx , where c is the damping factor. The specific form of the modified NLSEF is shown in Equation (18). When the parameter setting is completed, the error can be quickly converged without high frequency chattering.…”

“…2) the dynamic voltage restorer, static var compensator and other equipment are used to inject reactive power into the system to assist the fault voltage recovery, so as to prevent the excessive voltage amplitude at the outlet side of the converter and avoid the DC capacitor voltage exceeding the limit. Some scholars improve the voltage fault ride through capability of wind turbine through virtual impedance, variable damping, switching control mode of grid side converter of wind turbine [17][18][19][20][21][22].…”

“…The core of ADRC is the accurate observation and reasonable compensation of the total disturbance of the system. The control gain 0 b in Equation(18) reflects the compensation intensity of the controller. Taking into account the uncertainty of the model itself and the variability of actual operating conditions, such as inductance and capacitance parameter perturbation, the actual control gain of the system will also change in real time.…”

Applications of Power Electronics

“…Extending the Kalman filter-based sliding mode control of a parallel-connected two five-phase PMSM drive system is explained in [28]. Since a slim DC-link drive provides a compact drive system, improving the motor drive performance and control stability through modulation and active damping is proposed in [29]. Utilizing composite active vector modulation in improving a direct torque control scheme for PMSM is introduced in [30].…”

Applications of Power Electronics

“…This special issue with 49 published articles has gained a great deal of attention from both academia and industry, clearly showing the growth in significance of "Applications of Power Electronics" in the current research and development arena. The accepted articles cover broad topics in the field of power electronics, and they are categorized into seven different focus areas: T1: Fault Diagnosis, Reliability and Condition Monitoring [14][15][16][17]; T2: Modeling, Control and Design of Power Electronic Converters [18][19][20][21][22][23][24][25]; T3: Electrical Machines, Drives and Traction Systems [26][27][28][29][30][31][32][33][34]; T4: Distributed Power Generation and e-Grid [35][36][37][38][39][40][41][42][43][44][45][46]; T5: Emerging Power Electronic Technologies (Pulsed Power, Energy Storage, Others) [47][48][49][50][51]; T6: Energy Access and Micro-Grids [52][53][54][55][56]; T7: Wireless Power Transfer Systems…”