中国电气工程学报（英文） ›› 2020, Vol. 6 ›› Issue (4): 97-105.doi: 10.23919/CJEE.2020.000034

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  • 收稿日期:2020-07-21 修回日期:2020-08-29 接受日期:2020-11-27 出版日期:2020-12-25 发布日期:2021-01-15

Coordinated Active and Reactive Power Optimization Considering Load Characteristics for Active Distribution Network*

Chenchen Yong1, Yong Li1,*, Zilong Zeng1,*, Zhiwen Zhang1, Zhenyu Zhang1, Yanlun Liu2   

  1. 1. College of Electrical and Information Engineering, Hunan University, Changsha 410082, China;
    2. Zhuhai Powint Electric Co., Ltd., Zhuhai 519085, China
  • Received:2020-07-21 Revised:2020-08-29 Accepted:2020-11-27 Online:2020-12-25 Published:2021-01-15
  • Contact: *E-mail: yongli@hnu.edu.cn, zengzilong@hnu.edu.cn
  • About author:Chenchen Yong was born in Anhui, China, in 1996. She received the B.S. degree from the College of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, China in 2014. She is currently a master student in College of Electrical and Information Engineering, Hunan University, Changsha, China. Her research interests include power system stability analysis and distribution network optimization.
    Yong Li (S’09-M’12-SM’14) was born in Henan, China, in 1982. He received the B.S. and Ph.D. degrees in 2004 and 2011, respectively, from the College of Electrical and Information Engineering, Hunan University, Changsha, China. Since 2009, he worked as a research associate at the Institute of Energy Systems, Energy Efficiency, and Energy Economics (IE3), TU Dortmund University, Dortmund, Germany, where he received the second Ph.D. degree in June 2012. After then, he was a research fellow with The University of Queensland, Brisbane, Australia. Since 2014, he is a full professor of electrical engineering with Hunan University. His current research interests include power system stability analysis and control, AC/DC energy conversion systems and equipment, analysis and control of power quality, and HVDC and FACTS technologies.
    Zilong Zeng was born in Hunan, China, in 1993. He received the B.S. degree in electrical and information engineering from the Changsha University of Science & Technology, Changsha, China in 2016. He is currently pursuing Ph.D. degree with the National Energy Conversion and Control Engineering Research Center, Hunan University at Changsha, China. His research interests include the internet of things, block chain application technology, network information security of the power system, and the energy internet.
    Zhiwen Zhang was born in Hunan, China, in 1963. He received the B.S., M.S. and Ph.D. degrees from Hunan University in 1987, 1990 and 2004, respectively, from the College of Electrical and Information Engineering, Hunan University, Changsha, China. His research interests include AC and DC power conversion system theory and new technologies, electrified railways, power quality analysis and control, and power system harmonic suppression.
    Zhenyu Zhang was born in Hebei, China, in 1994. He received the B.S. degree from the college of Electrical and Information Engineering, Hunan University, Changsha, China. He is currently pursuing Ph.D. degree in the College of Electrical and Information Engineering, Hunan University, Changsha, China. His research interests include the machine learning in the power system, NILM and topology identification in the distribution network.
    Yanlun Liu was born in Liaoning, China in 1968, graduated from Hunan University in 1991, received a bachelor’s degree in computer application, and obtained a master’s degree in computer application from Northeastern University in 2001. After graduation, he worked in the Industrial Control Laboratory of Shenyang Institute of Technology, Chinese Academy of Sciences. For many years, he has been engaged in the research and development of computer software and control system related to integrated automation project of electric power system. At present, he is working in Zhuhai Powint Electric Co., Ltd., focusing on the research and development of products such as FTU and TTU and the implementation of small current grounding algorithm.

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Abstract: Voltage sensitive loads are extremely susceptible to voltage fluctuations, resulting in power system safety issues and economic losses. Due to the load component of voltage sensitive loads being changed at different times, a voltage sensitive load model including the time characteristics is proposed. To improve the voltage distribution in the active distribution network (ADN), the linearized active and reactive power coordinated optimization model for minimizing the operational cost (including the fluctuating cost of sensitive loads) is established. Finally, the simulation on the IEEE 33-bus system demonstrates that the proposed control strategy can effectively stabilize the bus voltage of the sensitive load and reduce the operational costs of the ADN.

Key words: Sensitive load, time-varying characteristics, active distribution network