Distributed Optimization Strategy for Voltage Regulation in PV-Integrated Power Systems with Limited Sensor Deployment

This paper presents a distributed optimization strategy for reactive power–voltage control in distribution networks with high photovoltaic (PV) penetration under limited sensor deployment scenarios. To address voltage violations and minimize network power losses, a novel distributed optimization fra...

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Bibliographic Details
Published in:Energies (Basel) Vol. 18; no. 14; p. 3598
Main Authors: Lu, Xun, Liu, Junlei, Liu, Xinmiao, Liu, Jun, Lin, Lingxue
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.07.2025
Subjects:
adaptive step size
Algorithms
Alternative energy sources
Approximation
Communication
Control systems
Distributed generation (Electric power)
distributed optimization strategy
Efficiency
Energy resources
improved dynamic projected primal–dual distributed algorithm
Infrastructure
Mathematical optimization
Methods
Optimization
Photovoltaic power generation
PV-integrated power systems
Renewable resources
Solar energy
voltage regulation
China
ISSN:1996-1073, 1996-1073
Online Access:Get full text
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Summary:This paper presents a distributed optimization strategy for reactive power–voltage control in distribution networks with high photovoltaic (PV) penetration under limited sensor deployment scenarios. To address voltage violations and minimize network power losses, a novel distributed optimization framework is developed that utilizes selective nodal measurements from PV-integrated nodes and critical T-junction locations, coupled with inter-node communication for information exchange. The methodology integrates an adaptive step size algorithm within a dynamic projected primal–dual distributed optimization framework, eliminating manual parameter tuning requirements while ensuring theoretical convergence guarantees through Lyapunov stability analysis. Comprehensive validation on the IEEE 33-bus distribution test system demonstrates that the proposed strategy achieves significant performance improvements. The distributed control framework reduces measurement infrastructure requirements while maintaining near-optimal performance, demonstrating superior economic efficiency and operational reliability. These results establish the practical viability of the proposed approach for real-world distribution network applications with high renewable energy integration, providing a cost-effective solution for voltage regulation under incomplete observability conditions.
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content type line 14
ISSN:1996-1073
1996-1073
DOI:10.3390/en18143598