Advanced Control Strategies for Back-to-Back Power Converter PMSG Wind Turbine Systems

2019 ◽  
Author(s):  
Zhenbin Zhang ◽  
Zhufeng Cui ◽  
Zhenkun Zhang ◽  
Ralph Kennel ◽  
Jose Rodriguez
Keyword(s):  
Wind Turbine ◽  
Control Strategies ◽  
Power Converter ◽  
Advanced Control

The Control Strategy Study of Doubly-Fed Wind Turbine Participated in Frequency Regulation

2012 ◽  
Vol 512-515 ◽  
pp. 788-793
Author(s):  
Xiao Hua Zhou ◽  
Ming Qiang Wang ◽  
Wei Wei Zou
Keyword(s):  
Wind Turbine ◽  
Control Strategy ◽  
Large Scale ◽  
Control Strategies ◽  
Frequency Control ◽  
Frequency Regulation ◽  
Strategy Study ◽  
Fuzzy Control Strategy ◽  
Doubly Fed ◽  
System Frequency

Traditional decoupling control strategy of doubly-fed induction generator (DFIG) wind turbine makes little contribution to system inertia and do not participate in the system frequency control, the synchronization of large-scale wind power requires wind turbine have the ability to participate in the regulation of power system frequency. This paper adds a frequency control segment to traditional DFIG wind turbine and considers the doubly-fed wind turbine operating on the state of the super-synchronous speed, by analysis the effect of inertia and proportional control strategies, a fuzzy control strategy which combines the advantages of the former two control strategies is proposed, simulation results show that this control strategy can more effectively improve the system frequency response.

scholarly journals Advanced control strategies for bioprocess chromatography: Challenges and opportunities for intensified processes and next generation products

2021 ◽  
Vol 1639 ◽  
pp. 461914
Author(s):  
Alexander Armstrong ◽  
Kieran Horry ◽  
Tingting Cui ◽  
Martyn Hulley ◽  
Richard Turner ◽  
...  
Keyword(s):  
Control Strategies ◽  
Next Generation ◽  
Advanced Control ◽  
Challenges And Opportunities

Modeling and Control of an Infinitely Variable Speed Converter With Application to Wind Turbines

2012 ◽  
Author(s):  
W. D. Zhu ◽  
X. F. Wang
Keyword(s):  
Wind Turbine ◽  
Kinematic Model ◽  
Power Converter ◽  
Output Shaft ◽  
Speed Ratio ◽  
Variable Speed ◽  
Average Output ◽  
Constant Frequency ◽  
Current Frequency ◽  
Feed Forward

Traditional transmission in wind turbine applications has a constant output-to-input speed ratio, which needs a power converter to regulate the current frequency that can be fed into the grid. Different types of continuously variable transmission (CVT) have been developed for vehicle and wind turbine applications, which can generate constant-frequency current without using a power converter in a wind turbine. An infinitely variable speed converter (IVSC) is a specific type of CVT that can achieve a zero speed ratio and transmit a large torque at a low speed ratio. An IVSC with drivers that convert an eccentric motion of cams to a concentric motion of the output shaft through one-way bearings is introduced, and an active control system with a combined feedback and feed forward control that can automatically adjust the eccentricity of the outer cams to control the speed ratio of the transmission is developed. The kinematic model of the IVSC is derived and fitted by a polynomial function to serve as the feed forward function in the control law. The feedback control is used to reduce the system error. A dynamic model of the IVSC is derived to investigate the effect of the dynamic load on the input and output speeds. Static and dynamic tests were conducted to validate the kinematic model of the IVSC. The variation of the average output speed per revolution of the output shaft is 0.56% with respect to the desired output speed in the simulation and 0.91% in the experiments.

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