An Efficiency-Optimal Control Method for Mono-Inverter Dual-PMSM Systems

Liu, Tianyi; Fadel, Maurice

doi:10.1109/tia.2017.2768535

Cited by 29 publications

(18 citation statements)

References 17 publications

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“…The output function is defined as the speed of the two machines to achieve speed tracking control. θ d must be used to manipulate the system efficiency [14]. The state variables θ 1 and θ 2 are changed to θ d so that the number of states is reduced.…”

Section: Lti Model Of a Midpmsm System A State-space Model Of A mentioning

confidence: 99%

“…The controller structure of a MIDPMSM system must be designed respect to the system constraints [14]. Among the unconstrained variable, θ d must be selected as constrained variable and used to regulate the efficiency of the system.…”

Section: B Order Reducing Of the Modelmentioning

confidence: 99%

“…The gain k is used to regulate the compensation part so that the subsystem (8) is stable in all condition. Its constraints can be obtained through discussing the solution of the characteristic polynomial (14). The subsystem is stable if and only if the two eigenvalues have negative real parts, and it is equivalent to (16).…”

Section: Subsystem Stability Considerationmentioning

confidence: 99%

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Reduced-Order Feedback Linearization for Independent Torque Control of a Dual Parallel-PMSM System

Liu

Zhu

et al. 2021

IEEE Access

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Connecting two PMSMs in parallel to a 2-level 3-leg inverter gives a way to build up a high power-density driving system using existing electronic devices. But this type of system has a nature of nonlinearity that creates an obstacle in high performance control and the original system cannot be feedbacklinearized directly. This paper presents a reduced-order feedback-linearization method. In the first place, an extra order-reducing step that separates the system as a main system and an auxiliary system is applied. Then a feedback-linearization method is applied to the reduced-order system. With these effort, the original system can be converted into a linear time-invariant system bringing the controller design problem into the linear domain. In the last step, a linear robust state-feedback controller is used to achieve the speed control as well as compensate the unmeasurable external load torque. An extensive experiment is given to verify the feasibility and good performance in a highly unbalanced load torque situation of the designed controller.

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Section: Lti Model Of a Midpmsm System A State-space Model Of A mentioning

confidence: 99%

Section: B Order Reducing Of the Modelmentioning

confidence: 99%

Section: Subsystem Stability Considerationmentioning

confidence: 99%

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Reduced-Order Feedback Linearization for Independent Torque Control of a Dual Parallel-PMSM System

Liu

Zhu

et al. 2021

IEEE Access

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“…Using both SMC and deadbeat-based PCC the author is able to achieve robustness in current and speed tracking. The work of Liu and Fadel [45] gives Mono-Inverter Dual-PMSM system to share the static converters in electro-mechanical connected in parallel. This model provides both feasibility and performance improvement.…”

Section: Review Of Existing Resourcesmentioning

confidence: 99%

A Review on Controlling Techniques for Permanent Magnet Synchronous Motor (PMSM) and Current State of the Art in the Research Area

Thampi¹,

Kiran²

2019

CAE

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The significance of Permanent Magnet Synchronous Motors (PMSM) is that it offers high performance and efficiency for motor drives. The controlling of the high-performance motor is characterized by smooth operation of the motor over entire speed range, control ability of torque even at zero speed, fast acceleration, and deceleration. The optimization of the speedcontrol performance under different constraints and uncertainties is the biggest concern in PMSM. In that sense, various speedcontrol mechanisms were presented towards identifying the better way to control PMSM drive having high-speed features and desired torque response. However, it is necessary to have a suitable control mechanism where the better adjustment of performance can be achieved for a different operating condition. However, it is quite hard to distinguish the system characteristics and dynamic control parameters during real-time operation due to complexity in PMSM system. This paper intends to present the survey of controlling strategies in PMSM and current research trends in PMSM. Along with the research gap, a futuristic line of research is presented.

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“…Reducing the number of switching devices is desirable; therefore, many research results have shown simplified configurations for DMDS. For example, a reduced-switch-count inverter [1][2][3], a nine-switch inverter [4][5][6][7], a mono inverter [8][9][10], a five-leg inverter [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26], and so on.…”

Section: Introductionmentioning

confidence: 99%

Carrier-Based Discontinuous PWM Method for Five-Leg Inverter

Lee

Ryu

2020

IEEE Access

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This paper proposes a rotation carrier-based discontinuous pulse width modulation (CB-DPWM) method for the five-leg inverter (FLI). The FLI based on two-level topology consists of 10 switching devices for driving dual motors. Therefore, two switching devices can be reduced to compare the configuration using two three-leg inverters for driving dual motors. The proposed pulse width modulation (PWM) method is based on the reference signals which are used in existing carrier-based continuous pulse width modulation (CB-CPWM) method for FLI. In the proposed rotation CB-DPWM method, one of fiveleg is periodically clamped to Vdc/2 or-Vdc/2 by adding the offset voltage to the reference voltages of the existing CB-CPWM method. The five reference voltages for all legs are considered to calculate the offset voltage of the proposed rotation CB-DPWM method. Consequently, since the proposed rotation CB-DPWM method has the fewer number of switching than that of the existing CB-CPWM, the switching loss can be reduced and it results in the efficiency improvement. Simulation and experimental results confirm the effectiveness and feasibility of the proposed method. INDEX TERMS Five-leg inverter (FLI), Modulation, rotation Carrier-based discontinuous pulse width modulation (CB-DPWM), Dual-motor driving system

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An Efficiency-Optimal Control Method for Mono-Inverter Dual-PMSM Systems

Cited by 29 publications

References 17 publications

Reduced-Order Feedback Linearization for Independent Torque Control of a Dual Parallel-PMSM System

Reduced-Order Feedback Linearization for Independent Torque Control of a Dual Parallel-PMSM System

A Review on Controlling Techniques for Permanent Magnet Synchronous Motor (PMSM) and Current State of the Art in the Research Area

Carrier-Based Discontinuous PWM Method for Five-Leg Inverter

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