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Coordinated Control Method of Voltage and Reactive Power for Active Distribution Networks Based on Soft Open Point

Journal Article · · IEEE Transactions on Sustainable Energy
 [1];  [2];  [1];  [1];  [1];  [3];  [4]
  1. Tianjin Univ. (China). Key Lab. of Smart Grid of Ministry Education
  2. Tianjin Univ. (China). Key Lab. of Smart Grid of Ministry of Education
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  4. Cardiff Univ., Cardiff (United Kingdom). Institute of Energy, School of Engineering
+ Show Author Affiliations
The increasing penetration of distributed generators (DGs) exacerbates the risk of voltage violations in active distribution networks (ADNs). The conventional voltage regulation devices limited by the physical constraints are difficult to meet the requirement of real-time voltage and VAR control (VVC) with high precision when DGs fluctuate frequently. But, soft open point (SOP), a flexible power electronic device, can be used as the continuous reactive power source to realize the fast voltage regulation. Considering the cooperation of SOP and multiple regulation devices, this paper proposes a coordinated VVC method based on SOP for ADNs. Firstly, a time-series model of coordi-nated VVC is developed to minimize operation costs and eliminate voltage violations of ADNs. Then, by applying the linearization and conic relaxation, the original nonconvex mixed-integer non-linear optimization model is converted into a mixed-integer second-order cone programming (MISOCP) model which can be efficiently solved to meet the requirement of voltage regulation rapidity. Here, we carried out some case studies on the IEEE 33-node system and IEEE 123-node system to illustrate the effectiveness of the proposed method.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
National Key Technology Research and Development Program of China; National Natural Science Foundation of China; USDOE
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1394744
Report Number(s):
NREL/JA-5D00-68178; MainId:21991; UUID:c82a8049-8d0d-e711-8943-d89d67132a6d; MainAdminID:10467
Journal Information:
IEEE Transactions on Sustainable Energy, Journal Name: IEEE Transactions on Sustainable Energy Journal Issue: 4 Vol. 8; ISSN 1949-3029
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

References (1)

Optimal operation of soft open points in medium voltage electrical distribution networks with distributed generation dataset January 2016

Cited By (7)

Optimal coordination of PV smart inverter and traditional volt‐VAR control devices for energy cost savings and voltage regulation journal June 2019
Reduction of energy demand via conservation voltage reduction considering network reconfiguration and soft open point journal July 2019
E‐SOP's contribution in a techno‐economic and clean operation of distribution networks: A multi‐objective optimization approach based on linear models journal November 2019
Optimal coordinate control of OLTC, DG, D-STATCOM, and reconfiguration in distribution system for voltage control and loss minimization
  • Murty, Vallem Veera Venkata Satya Narayana; Sharma, Ashwani Kumar
  • International Transactions on Electrical Energy Systems, Vol. 29, Issue 3 https://doi.org/10.1002/etep.2752
journal November 2018
Multi-objective operation optimization of active distribution network based on three-terminal flexible multi-state switch journal March 2019
A Universal Design of FPGA-Based Real-Time Simulator for Active Distribution Networks Based on Reconfigurable Computing journal May 2019
Optimal Network Reconfiguration in Active Distribution Networks with Soft Open Points and Distributed Generation journal November 2019

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Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
ADN
DG
MISOCP
SOP
VVC
active distribution network
distributed generator
mixed-integer second-order cone programming
soft open point
voltage and VAR control