Two-Stage Active and Reactive Power Coordinated Optimal Dispatch for Active Distribution Network Considering Load Flexibility

Yu Zhang, Xiaohui Song, Yong Li, Zilong Zeng, Chenchen Yong, Denis Sidorov and Xia Lv
Additional contact information
Yu Zhang: China Electric Power Research Institute Co., Ltd., Beijing 100192, China
Xiaohui Song: China Electric Power Research Institute Co., Ltd., Beijing 100192, China
Yong Li: College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
Zilong Zeng: College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
Chenchen Yong: College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
Denis Sidorov: Energy Systems Institute, Russian Academy of Sciences, 664033 Irkutsk, Russia
Xia Lv: Zhuhai Powint Electric Co. Ltd., Zhuhai 519085, China

Energies, 2020, vol. 13, issue 22, 1-13

Abstract: A high proportion of renewable energy connected to the power grid has caused power quality problems. Voltage-sensitive loads are extremely susceptible to voltage fluctuations, causing power system safety issues and economic losses. Considering the uncertainty factor and the time-varying characteristic, a linearized random ZIP model (constant impedance (Z), constant current (I), and constant power (P)) with time-varying characteristics was proposed. In order to improve the voltage quality of the voltage-sensitive loads in the day-here stage in an active distribution network (ADN), a linearized two-stage active and reactive power coordinated stochastic optimization model was established. The day-ahead active and reactive power coordination optimization was to smooth the large voltage fluctuation and develop a reserve plan to eliminate the unbalanced power caused by the prediction error in the day-here optimization. In the day-here real-time redispatch, the voltage was further improved by the continuous reactive power compensation device. Finally, the simulation results on the IEEE-33 bus system showed that the control strategy could better eliminate the unbalanced power caused by the prediction error and obviously improve the voltage of sensitive loads in the real-time stage on the premise of maintaining economic optimality.

Keywords: highly sensitive load; economic dispatch; stochastic planning; multiple time scales; voltage control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/22/5922/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/22/5922/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:22:p:5922-:d:444499

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().