Direct Flux Vector Control of Synchronous Motor Drives: Accurate Decoupled Control With Online Adaptive Maximum Torque Per Ampere and Maximum Torque Per Volts Evaluation

Varatharajan, Anantaram; Pellegrino, Gianmario; Armando, Eric

doi:10.1109/tie.2021.3060665

Cited by 12 publications

(13 citation statements)

References 22 publications

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“…Linear magnetics are considered in the model and and the control law. If desired, these could be relatively easily extended with nonlinear magnetics [18].…”

Section: B Flux-magnitude and Torque Dynamicsmentioning

confidence: 99%

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Design Framework for Sensorless Control of Synchronous Machine Drives

Tiitinen,

Hinkkanen,

Harnefors

2024

Preprint

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This paper develops a design framework for sensorless flux-vector control of synchronous machine drives. Observer-based volts-per-hertz (V/Hz) control is presented as a special case in this framework. A complete linearized model is derived, which allows systematic control design and stability analysis. Using the model, passivity conditions are derived. The control methods are experimentally evaluated using a 6.7-kW synchronous reluctance machine (SyRM) and a 2.2-kW permanent-magnet (PM) machine as examples.

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“…Linear magnetics are considered in the model and and the control law. If desired, these could be relatively easily extended with nonlinear magnetics [18].…”

Section: B Flux-magnitude and Torque Dynamicsmentioning

confidence: 99%

“…Consequently, the two control channels can be decoupled, and the desired bandwidth is achieved for both control variables in all operating points [16]. In [18], this exact input-output feedback linearization method is extended with consideration for magnetic saturation.…”

mentioning

confidence: 99%

Design Framework for Sensorless Control of Synchronous Machine Drives

Tiitinen,

Hinkkanen,

Harnefors

2024

Preprint

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“…It is to be noted that c v = 0 corresponds to the MTPV condition [15]. 2 Accordingly, c v > 0 holds in the whole feasible operating region. With the gain…”

Section: A State-feedback Controlmentioning

confidence: 99%

“…∆τ m = i T s0 J∆ ψs (14c) 1 The mismatch between δact and δ could be avoided by decreasing ψ s,ref inversely proportional to the stator frequency in the field-weakening region, which, however, is typically unnecessary. 2 The maximum-torque-per-ampere (MTPA) condition is ψ T a0 i s0 = 0.…”

Section: B Observermentioning

confidence: 99%

“…Operation in the field-weakening region typically necessitates special algorithms. Stator-flux-oriented implementations simplify the reference generation and fieldweakening operation, but a voltage margin is still needed, which prevents the utilization of the full DC-link voltage [1], [2]. For both approaches, the speed controller may be difficult to tune when the mechanical load is unknown.…”

Section: Introductionmentioning

confidence: 99%

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Stable and Passive Observer-Based V/Hz Control for Synchronous Motors

Tiitinen

Hinkkanen

Kukkola

et al. 2022

2022 IEEE Energy Conversion Congress and Exposition (ECCE)

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This paper proposes an observer-based volts-perhertz (V/Hz) control method for synchronous motors. The method is applicable to any synchronous motor type, from permanentmagnet (PM) motors to synchronous reluctance motors (SyRMs). The method consists of a state-feedback control law and a state observer, both of which are designed to be inherently sensorless. The gains can be selected using simple closed-form expressions, resulting in a locally stable and passive system in the whole feasible operating range. Unstable regions and heuristic tuning of conventional V/Hz control are thus avoided. Compared to sensorless field-oriented control, neither speed controller nor separate field-weakening method is needed, the full inverter voltage can be utilized, and the sensitivity to parameter errors is reduced. For the majority of industrial drive applications, the dynamic performance of the proposed method is adequate.

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Efficient DC motor speed control using a novel multi-stage FOPD(1 + PI) controller optimized by the Pelican optimization algorithm

Jabari,

Ekinci,

Izci

et al. 2024

Sci Rep

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This paper introduces a novel multi-stage FOPD(1 + PI) controller for DC motor speed control, optimized using the Pelican Optimization Algorithm (POA). Traditional PID controllers often fall short in handling the complex dynamics of DC motors, leading to suboptimal performance. Our proposed controller integrates fractional-order proportional-derivative (FOPD) and proportional-integral (PI) control actions, optimized via POA to achieve superior control performance. The effectiveness of the proposed controller is validated through rigorous simulations and experimental evaluations. Comparative analysis is conducted against conventional PID and fractional-order PID (FOPID) controllers, fine-tuned using metaheuristic algorithms such as atom search optimization (ASO), stochastic fractal search (SFS), grey wolf optimization (GWO), and sine-cosine algorithm (SCA). Quantitative results demonstrate that the FOPD(1 + PI) controller optimized by POA significantly enhances the dynamic response and stability of the DC motor. Key performance metrics show a reduction in rise time by 28%, settling time by 35%, and overshoot by 22%, while the steady-state error is minimized to 0.3%. The comparative analysis highlights the superior performance, faster response time, high accuracy, and robustness of the proposed controller in various operating conditions, consistently outperforming the PID and FOPID controllers optimized by other metaheuristic algorithms. In conclusion, the POA-optimized multi-stage FOPD(1 + PI) controller presents a significant advancement in DC motor speed control, offering a robust and efficient solution with substantial improvements in performance metrics. This innovative approach has the potential to enhance the efficiency and reliability of DC motor applications in industrial and automotive sectors.

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Direct Flux Vector Control of Synchronous Motor Drives: Accurate Decoupled Control With Online Adaptive Maximum Torque Per Ampere and Maximum Torque Per Volts Evaluation

Cited by 12 publications

References 22 publications

Design Framework for Sensorless Control of Synchronous Machine Drives

Design Framework for Sensorless Control of Synchronous Machine Drives

Stable and Passive Observer-Based V/Hz Control for Synchronous Motors

Efficient DC motor speed control using a novel multi-stage FOPD(1 + PI) controller optimized by the Pelican optimization algorithm

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