Article
Energy & Fuels
Yalla Tirumala Rao, Chandan Chakraborty, Sabyasachi Sengupta
Summary: This article presents a potential wind energy conversion system using a brushless induction excited synchronous generator, discussing the system's stability and suitability through research and simulation experiments.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2021)
Article
Engineering, Electrical & Electronic
Bing Lu, Shuhui Li, Himadry Shekhar Das, Yixiang Gao, Jing Wang, Murali Baggu
Summary: This study focuses on the impact of subsynchronous oscillation (SSO) on doubly fed induction generator (DFIG) wind turbines. By studying the constraints of power converters, the dynamic nature of DFIG P-Q capability under uncertain and variable conditions is explored.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2022)
Article
Energy & Fuels
Dominik A. Gorski, Grzegorz Iwanski
Summary: This article presents an analysis of grid connection of an excited induction generator, proposing a method to reduce inrush current and eliminate voltage drop in the local grid. The method involves connecting the generator to the grid when the voltages match but the frequencies differ, and using a power electronic converter for excitation. Experimental results demonstrate the effectiveness of this method in improving grid connection efficiency.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2021)
Article
Engineering, Electrical & Electronic
Celso Rogerio Schmidlin Jr, Francisco Kleber de Araujo Lima, Fabricio Gonzalez Nogueira, Carlos Gustavo Castelo Branco, Fernando Lessa Tofoli
Summary: This work proposes a simplified model for representing positive-sequence and negative-sequence components in wind energy conversion systems based on DFIG. Through mathematical analysis, an accurate model is derived for time-domain simulations to reduce complexity and computational burden, validated against experimental results. The model effectively captures stator current behavior under unbalanced voltages or voltage sags, and is especially useful for research on low voltage ride-through techniques.
ELECTRIC POWER SYSTEMS RESEARCH
(2021)
Article
Energy & Fuels
Marcelo Patricio de Santana, Geyverson Teixeira de Paula, Carlos Matheus Rodrigues de Oliveira, Fernando de Almeida Borges, Helmo Kelis Morales Paredes, Jose Roberto Boffin de Almeida Monteiro
Summary: This paper introduces a novel vector control topology for mitigating stator current harmonic in Doubly Fed Induction Generator caused by grid voltage harmonic content, with the proposed HVC controller able to reduce any desired current harmonic effectively.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2021)
Article
Automation & Control Systems
Xu Wu, Wenxin Huang, Xiaogang Lin, Wen Jiang, Yong Zhao, Shanfeng Zhu
Summary: This article proposes a DTC method based on minimum voltage vector error to improve the performance of induction motors by optimizing the duty ratio of fundamental voltage vector. Experimental comparisons show that the proposed method achieves better steady-state performance and fast dynamic response compared to traditional methods.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Chao-Qun Xiang, Xinan Zhang, Herbert Ho-Ching Iu, Lulin Zhang, Shu Cheng
Summary: This article proposes a novel duty ratio regulated virtual voltage vector model predictive torque control strategy for post-fault inverter fed induction motor drive with reduced neutral point voltage fluctuation. The method significantly improves steady-state torque control performance and reduces torque ripples and voltage fluctuations compared to conventional methods.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Sheng Hu, Guorong Zhu
Summary: This paper presents an enhanced control and operation method for brushless doubly-fed induction generator (BDFIG) based wind turbine system, which can effectively eliminate oscillations of torque and total output active power under grid voltage unbalance, and has good dynamic and stable performance.
ELECTRIC POWER SYSTEMS RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Jesus Castro Martinez, Jose Luis Rodriguez Amenedo, Santiago Arnaltes Gomez, Jaime Alonso-Martinez
Summary: This paper proposes a novel grid-forming control scheme for doubly-fed induction generators, so they behave as real voltage sources. The proposed control system is based on the orientation of the rotor flux to a reference axis obtained from the emulation of the synchronous generator swing equation. The control system has been validated through real-time simulation with hardware in the loop and small signal analysis to assess system stability.
Article
Computer Science, Information Systems
Sheng Hu, Guorong Zhu, Yong Kang
Summary: The study proposed a coordinated control strategy considering both MSC and GSC to achieve control objectives for the BDFIG wind turbine system. Simple single current closed-loop controllers and feedforward control were utilized to achieve decoupling control and improve dynamic response of the system.
Article
Engineering, Electrical & Electronic
R. Shankar, T. Sengolrajan, K. Mohanraj, B. Balraj
Summary: This study evaluates the behavior of a grid-connected wind energy system based on Doubly Fed Induction Generator (DFIG) using an emulated wind turbine drive system. A hybrid microgrid system is created by including a PV fed Landsman converter for continuous and uniform power supply from renewable sources to the grid. The suggested system effectively manages actual and reactive power and DC link voltages through the control mechanism.
ELECTRIC POWER SYSTEMS RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Wenbai Wang, Mingxing Du, Kexin Wei
Summary: The principle of PMSM torque control involves driving the stator flux linkage vector to chase a rotating reference using voltage vectors, but traditional methods may slow down the torque response. A new method proposed in this article accelerates the torque rising by shortening and then lengthening the stator flux linkage vector. This technique is backed up by comparative experimental results.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2021)
Article
Energy & Fuels
Mansoor Soomro, Zubair Ahmed Memon, Mazhar Hussain Baloch, Nayyar Hussain Mirjat, Laveet Kumar, Quynh T. Tran, Gaetano Zizzo
Summary: The DFIG-based wind energy conversion system suffers from voltage and frequency fluctuations due to wind speed randomness and non-linear loads. The high penetration of wind energy into the power grid poses a challenge for its smooth operation. During symmetrical faults, a series grid-side converter with a shunt injection transformer is used to maintain rotor current within acceptable levels. MATLAB simulation results show that the proposed PI + SGSC scheme outperforms PI and PI + DIFCL control schemes by improving rotor current performance by 77.6% and 20.61% respectively for enhancing the low-voltage ride-through performance of DFIG.
Article
Energy & Fuels
Grzegorz Iwanski, Mateusz Piwek, Gennadiy Dauksha
Summary: This study analyzes the impact of control methods on torque and output voltage oscillations in a standalone DC voltage generator. It introduces a new variable to reduce oscillations and proves that it can decrease torque and DC-bus voltage oscillations.
Article
Energy & Fuels
Abrar Ahmed Chhipa, Prasun Chakrabarti, Vadim Bolshev, Tulika Chakrabarti, Gennady Samarin, Alexey N. Vasilyev, Sandeep Ghosh, Alexander Kudryavtsev
Summary: Wind energy conversion systems (WECS) are an important and rapidly growing source of electrical power generation that can improve power supply in remote communities. This study proposes a control strategy based on maximum power point tracking (MPPT) to optimize the performance and efficiency of WECS under fluctuating wind speeds, and simulation results validate its effectiveness and good dynamic performance.