Adaptive Optimizing Control for Nonlinear Synchronous Generator System with Uncertain Disturbance

In this paper, an adaptive optimizing control is proposed for nonlinear synchronous generator system with uncertain disturbance. Considering the issue of uncertain item, a low-order Extended State Observer (ESO) is constructed to track each order states. Then, combining Backstepping technology and proposed ESO, a dynamic compensation control is designed to compensate the uncertainty disturbance in each state quantity. The proposed method demonstrated that stability of the system can be ensured, and tracking burden of ESO can be reduced. Finally, simulation results can show a good tracking performance and anti-interference ability by the proposed control method.

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Control method for the stable operation of distributed inverters following the introduction of large-scale renewable energy to a remote island grid

Clean Energy ◽

10.1093/ce/zkab004 ◽

2021 ◽

Vol 5 (2) ◽

pp. 196-207

Author(s):

Shoichi Sato ◽

Yasuhiro Noro

Keyword(s):

Renewable Energy ◽

Large Scale ◽

Control Method ◽

Synchronous Generator ◽

Stable Operation ◽

Battery Energy Storage Systems ◽

Simulation Results ◽

Battery Energy ◽

Systems Simulation ◽

Different Characteristics

Abstract The introduction of large-scale renewable energy requires a control system that can operate multiple distributed inverters in a stable way. This study proposes an inverter control method that uses information corresponding to the inertia of the synchronous generator to coordinate the operation of battery energy storage systems. Simulation results for a system with multiple inverters applying the control method are presented. Various faults such as line-to-line short circuits and three-phase line-to-ground faults were simulated. Two fault points with different characteristics were compared. The voltage, frequency and active power quickly returned to their steady-state values after the fault was eliminated. From the obtained simulation results, it was verified that our control method can be operated stably against various faults.

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Speed sensorless model predictive control method for a direct-drive wind energy conversion system

Measurement and Control ◽

10.1177/0020294019866855 ◽

2019 ◽

Vol 52 (9-10) ◽

pp. 1394-1402 ◽

Cited By ~ 2

Author(s):

Shengquan Li ◽

Juan Li ◽

Hanwen Wu ◽

Zhongwen Lin

Keyword(s):

Model Predictive Control ◽

Wind Energy ◽

Predictive Control ◽

Control Method ◽

Synchronous Generator ◽

State Observer ◽

Extended State Observer ◽

Direct Drive ◽

Extended State ◽

Speed Sensorless

Considering the problems of the internal and external disturbances of wind speed in the direct-drive wind energy conversion system based on a permanent magnet synchronous generator, a novel model predictive control based on the extended state observer method without the accurate mathematical system model is proposed in this paper. First, a model predictive control method is employed as the feedback controller, while the mathematical model of the control system can be adjusted online via the rolling optimization strategy. Second, an extended state observer is introduced to estimate the state variables and lumped disturbances, that is, the internal disturbances including nonlinear characteristic, multi-variety coupling effect, uncertainties of system parameters, and external disturbances including variations of wind speeds and uncertainties of the natural environment. Third, the effect of lumped disturbances can be attenuated by the estimated disturbance value via a feedforward channel. In addition, in order to achieve the real-time speed control performance of the permanent magnet synchronous generator, a speed sensorless algorithm based on a flux observer is proposed to solve the problem of unsuitability of mechanical speed sensor. Finally, the simulation results with several wind speed types show that the proposed sensorless model predictive control with the extended state observer strategy is an effective way to improve the performance of anti-disturbance and ability of tracking maximum wind energy of the wind power control system.

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2A1-P11 Control of a wheeled inverted pendulum robot equipped with dual manipulator : A control method of disturbance compensation control using Extended State Observer and feedforward input(Mobile Robot with Special Mechanism (1))

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) ◽

10.1299/jsmermd.2013._2a1-p11_1 ◽

2013 ◽

Vol 2013 (0) ◽

pp. _2A1-P11_1-_2A1-P11_4 ◽

Cited By ~ 2

Author(s):

Takuma SATO ◽

Kenta NAGANO ◽

CANETE Luis ◽

Takayuki TAKAHASHI

Keyword(s):

Mobile Robot ◽

Inverted Pendulum ◽

Control Method ◽

State Observer ◽

Extended State Observer ◽

Disturbance Compensation ◽

Extended State ◽

Compensation Control ◽

Special Mechanism ◽

Wheeled Inverted Pendulum

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Approximate Finite-Time Stable Control for Simple Interconnected Power Systems

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.846-847.305 ◽

2013 ◽

Vol 846-847 ◽

pp. 305-308

Author(s):

Jian Li Zhao ◽

Bao Feng Yan ◽

Bo Chen

Keyword(s):

Power Systems ◽

Finite Time ◽

Control Method ◽

Nonlinear Feedback Control ◽

Nonlinear Feedback ◽

Extended State ◽

Interconnected Power Systems ◽

Feedback Control Method ◽

Simulation Results ◽

Stable Control

Considering the simple interconnected power systems, the finite-time stable control problem is studied. A nonlinear feedback control method with dynamic active compensation is proposed, which makes the systems achieves approximately the finite-time stable control. Meantime, in order to solve the problem of system uncertainty and unmeasurable states, an extended state observer is designed. Simulation results show the effectiveness of the control method.

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A Virtual Synchronous Generator System Control Method with Battery SOC Feedback

2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2) ◽

10.1109/ei2.2018.8582563 ◽

2018 ◽

Author(s):

Mingming Shi ◽

Hongfei Chen ◽

Chenyu Zhang ◽

Fei Mei ◽

Jicheng Fang ◽

...

Keyword(s):

Control Method ◽

Synchronous Generator ◽

System Control ◽

Generator System ◽

Virtual Synchronous Generator

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PMSG Control for a Stand-Alone Gas Engine Generator Using Active Rectifier and VSG-Controlled Inverter

Energies ◽

10.3390/en13010233 ◽

2020 ◽

Vol 13 (1) ◽

pp. 233 ◽

Cited By ~ 1

Author(s):

Htar Su Hlaing ◽

Jia Liu ◽

Hassan Bevrani ◽

Toshifumi Ise

Keyword(s):

Vector Control ◽

High Performance ◽

Control Method ◽

Control Strategies ◽

Synchronous Generator ◽

Generator System ◽

Gas Engine ◽

Active Rectifier ◽

Synchronous Reference Frame ◽

Cascade Structure

The engine generator system with a diode rectifier causes harmonic currents in the generator which can affect generator efficiency and may produce torque oscillations. Using an active rectifier instead of a diode rectifier helps us to improve the current waveforms. In this paper, an active rectifier is used for a stand-alone gas engine generation system with a permanent magnet synchronous generator (PMSG). The generator side converter and the load side converter can be controlled separately to achieve high performance and reliability of the system. In the proposed control framework, the generator side converter is controlled by means of a current vector control method in a cascade structure with the synchronous reference frame (dq- frame). In the proposed control scheme, the dc link voltage is controlled by the generator side converter. For load side converter control, the concept of virtual synchronous generator control method is adopted to support a smooth power transient during the load changes. To verify the usefulness of the proposed control structure, using PSCAD software (version 4.2.1), the system transient responses with both a diode rectifier and an active rectifier are investigated under loading and load removal cases. Moreover, for the system with an active rectifier, the transient response of the system with different vector control strategies of PMSG is also investigated.

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Research and Application of Synchronous Generator Model Based on Simulink

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.281.239 ◽

2013 ◽

Vol 281 ◽

pp. 239-244

Author(s):

Xu Jiang ◽

Zhi Tao Feng ◽

Hong Guo

Keyword(s):

Synchronous Generator ◽

System Model ◽

Generator System ◽

Model Based ◽

Generator Model ◽

Calculation Module ◽

Simulation Results ◽

Tuning Function

There is no abc axis system model of synchronous generator in the SimPowerSystem (SPS) of Simulink but the model of dq axis system ，and the model of generator in SPS is lack of flexible tuning function of variable. In this paper a model of synchronous generator is established in abc axis system, which is based on the Simulink software. This model is consist of basic calculation module in the Simulink is created to solve the above problems. Using the model simulates a rotating-rectifier brushless synchronous generator system of planes and the simulation results indicate that the model is accurate enough.

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Model predictive control of direct-driven surface-mounted permanent magnet synchronous generator based on active disturbance rejection controller

Assembly Automation ◽

10.1108/aa-04-2021-0042 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Hongjun Shi ◽

Lei Xiong ◽

Xuchen Nie ◽

Qixin Zhu

Keyword(s):

Disturbance Rejection ◽

Control Method ◽

Synchronous Generator ◽

Maximum Power ◽

Tracking Performance ◽

Permanent Magnet Synchronous Generator ◽

Content Type ◽

Wind Energy Conversion ◽

Active Disturbance Rejection ◽

Energy Conversion System

Purpose This paper aims to mainly discuss how to suppress the disturbances accurately and effectively in the wind energy conversion system (WECS) of the direct drive surface mount permanent magnet synchronous generator (SPMSG). Design/methodology/approach The disturbances in wind energy conversion system have seriously negative influence on the maximum power tracking performance. Therefore, a model predictive control (MPC) method of model compensation active disturbance rejection control (ADRC) strategy in parallel connection is designed, which optimizes the speed tracking performance compared with the existing control strategy of MPC and ADRC in series connection. Based on the traditional ADRC, a multi parameter model compensation ADRC strategy is added to better estimate the disturbances. At the same time, a torque feedback strategy is added to compensate the disturbances caused by load torque and further optimize the speed loop tracking performance. Findings The simulation results show that the designed control method has advantages than the traditional control method in compensating the disturbances and tracking the maximum power more effectively. Originality/value The simulation results show that the designed control method is superior to the traditional proportional control method, which can better compensate the internal and external disturbances and track the maximum power more effectively.

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