Weight‐transducerless control strategy based on active disturbance rejection theory for gearless elevator drives

Wang, Gaolin; Wang, Bowen; Li, Chen; Xu, Dianguo

doi:10.1049/iet-epa.2016.0474

Cited by 19 publications

(6 citation statements)

References 26 publications

(33 reference statements)

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“…There are three main parts of the ADRC, TD, LSEF, and ESO. The TD is a transition link, makes the given signal filtered, filters out possible interference at the input, and the phase is corrected [30]. The LSEF adds the given signal which is processed by the TD and the signal which is feedback by the ESO together, plus the total disturbance, it can be seen as the control signal of the controlled target [31].…”

Section: A Inverter Modelingmentioning

confidence: 99%

Active Disturbance Rejection Control Strategy for Grid-Connected Photovoltaic Inverter Based on Virtual Synchronous Generator

2019

IEEE Access

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In order to solve the problem of insufficient control performance of various traditional control strategies in the complex environment of grid-connected inverters, the active disturbance rejection control (ADRC) strategy based on the virtual synchronous generator (VSG) is proposed. The mathematical model of a grid-connected photovoltaic inverter based on the VSG is built. The proposed control strategy provides the inverter with more disturbance attenuation and provides rotational inertia. The control strategy estimates and compensates the total disturbance and generates the reference active power and reactive power by ADRC. The control strategy converts the three-phase voltage and current outputs into positive and negative sequences on the dq reference frame. The VSG control module generates a reference voltage command and outputs it to the dual closed loop PI feedforward decoupling control. The PWM signal is finally obtained by the PI feedforward decoupling control. The ADRC strategy based on the VSG does not change the original control characteristics of the VSG; it retains the characteristics of the synchronous generator, and it also provides inertia and damping for the power grid. The simulation shows that the ADRC strategy based on the VSG applied to the inverter can attenuate disturbances. Under the unfavorable conditions of the unstable reference power, such as the unbalanced three-phase voltage and the random disturbance, the output power matches the international electricity standard. INDEX TERMS Virtual synchronous generator (VSG), active disturbance rejection control (ADRC), power control, grid-connected inverter, positive and negative separation. The associate editor coordinating the review of this manuscript and approving it for publication was Huanqing Wang.

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Section: A Inverter Modelingmentioning

confidence: 99%

Active Disturbance Rejection Control Strategy for Grid-Connected Photovoltaic Inverter Based on Virtual Synchronous Generator

2019

IEEE Access

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“…The LESO is embedded into current controller to realize robustness in the full-speed range. In [30], an ADRC controller using ESO is proposed for elevator traction machine. The nonlinear disturbance during elevator startup is estimated, which improves the dynamic response without using weight sensor.…”

Section: Introductionmentioning

confidence: 99%

Active Disturbance Compensation Based Robust Control for Speed Regulation System of Permanent Magnet Synchronous Motor

2020

Applied Sciences

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This paper deals with the robust control method for permanent magnet synchronous motor (PMSM) speed-regulation system based on active disturbance compensation. Different from the classical PMSM disturbance compensation scheme, a novel disturbance feed-forward compensation based on extended state observer (ESO) is designed for speed loop and q-axis current loop of PMSM. The disturbances of current loop include unmodeled dynamics of back electromotive force and parameters variations of stator are considered as lumped disturbance to compensate actively. In this way, the dynamic response of q-axis current loop can be improved to guarantee the anti-disturbance ability. A composite controller using sliding mode control and ESO is designed as speed loop controller, and an ESO-based proportional-integral controller is designed for q-axis current loop. Moreover, a transition process of reference signal is introduced to replace the step reference signal, which reduces the initial error and increases the range of feedback gain to improve system robustness. Finally, simulations and experiments are given to demonstrate the effectiveness of the proposed strategy.

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“…However, it suffers from multiple problems including: (1) tuning of its parameters; (2) high sensitivity against noise and external disturbances; and (3) loss of efficiency due to oversimplified control law [26,27]. One promising technique to relatively get rid of the drawbacks of PI regulator is active disturbance rejection controller (ADRC) [26,28]. The ADRC is a nonlinear control scheme, which provides a robust control against noises, external disturbances, and parameter uncertainties.…”

Section: Introductionmentioning

confidence: 99%

A Parallel Estimation System of Stator Resistance and Rotor Speed for Active Disturbance Rejection Control of Six-Phase Induction Motor

et al. 2020

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In this paper, a parallel estimation system of the stator resistance and the rotor speed is proposed in speed sensorless six-phase induction motor (6PIM) drive. First, a full-order observer is presented to provide the stator current and the rotor flux. Then, an adaptive control law is designed using the Lyapunov stability theorem to estimate the rotor speed. In parallel, a stator resistance identification scheme is proposed using more degrees of freedom of the 6PIM, which is also based on the Lyapunov stability theorem. The main advantage of the proposed method is that the stator resistance adaptation is completely decoupled from the rotor speed estimation algorithm. To increase the robustness of the drive system against external disturbances, noises, and parameter uncertainties, an active disturbance rejection controller (ADRC) is introduced in direct torque control (DTC) of the 6PIM. The experimental results clarify the effectiveness of the proposed approaches.

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Weight‐transducerless control strategy based on active disturbance rejection theory for gearless elevator drives

Cited by 19 publications

References 26 publications

Active Disturbance Rejection Control Strategy for Grid-Connected Photovoltaic Inverter Based on Virtual Synchronous Generator

Active Disturbance Rejection Control Strategy for Grid-Connected Photovoltaic Inverter Based on Virtual Synchronous Generator

Active Disturbance Compensation Based Robust Control for Speed Regulation System of Permanent Magnet Synchronous Motor

A Parallel Estimation System of Stator Resistance and Rotor Speed for Active Disturbance Rejection Control of Six-Phase Induction Motor

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