Harmonic elimination in switching table-based direct torque control of five-phase PMSM using matrix converter

Abstract

Direct torque control (DTC) of five-phase PMSMs has been investigated in many literatures. Besides many advantages of this method, large harmonic currents is one the major drawbacks of this scheme. Space vector modulation (SVM) methods have been applied to DTC algorithm to eliminate this problem. But it should be mentioned that SVM methods have complicated calculations. This paper proposes a simple scheme not only uses the DTC method based hysteresis comparators and maintain its simplicity, but eliminates the large harmonic currents. Also, the five-phase PMSM is fed by a three-phase to five-phase matrix converter (MC). Lack of bulky dc-link capacitor and controllable input power factor are some of advantages of MCs. Therefore, the presented method uses the advantages of MC and DTC method and also eliminates the large harmonic currents problem.

Predictive control in matrix converters — Part I: Principles, topologies and applications

“…Scalar Techniques [7], [8] Pulse Width Modulation [9]- [12] Direct Torque Control [13], [14] Direct Power Control [15], [16] Model Predictive Control [17]- [56] Others Direct Transfer Function [7] Scalar (Roy) [8] Carrier Based PWM [9], [10] Space Vector Modulation [11], [12] Predictive Current Control [17]- [39] Predictive Torque Control [40]- [48] Predictive Power Control [49]- [52] Predictive Voltage Control [53], [54] Unity Transfer [55], [56] [57]- [63] Fig. 2.…”

“…The pulse width modulation (PWM) technique is the simplest approach to modulate MCs [9]- [12]. The space vector modulation (SVM) [11], [12], [64]- [69] and direct torque control (DTC) [13], [14] are the most robust and used techniques for drives control in industrial applications but they are complex and not intuitive.…”

A review of predictive control techniques for matrix converters — Part I

“…Modulation and Control Methods for Matrix Converters Scalar Techniques [5], [6] Pulse Width Modulation [7]- [13] Direct Torque Control [14], [15] Direct Power Control [16], [17] Model Predictive Control [18]- [57] Others Direct Transfer Function [5] Scalar (Roy) [6] Carrier Based PWM [7], [8] Space Vector Modulation [9]- [13] Predictive Current Control [18]- [40] Predictive Torque Control [41]- [49] Predictive Power Control [50]- [53] Predictive Voltage Control [54], [55] Unity Transfer [56], [57] [58]- [64] Fig. 2.…”

“…The pulse width modulation (PWM) technique is the simplest approach to modulate MCs [7], [8], [12], [13]. The space vector modulation (SVM) [9]- [13] and direct torque control (DTC) [14], [15] are the most robust and used techniques for drives control in industrial applications but they are complex and not intuitive.…”

Sensorless direct torque control for PM-assisted synchronous motors with injection high-frequency signal into stator flux reference frame

“…Due to several advantages such as high efficiency, power density, and torque density, permanent magnet synchronous motors (PMSMs) have been penetrated in the market in recent decades [1][2]. Conventionally, direct torque control (DTC) and field oriented control (FOC) techniques are the well-known control schemes that are used for PSMS drives [3][4]. In the past decades, direct torque control (DTC) method has attracted extensive attentions due to its fast dynamic characteristic and robust implementation.…”