Research on Distribution Network Harmonic Mitigation and Optimization Control Strategy Oriented by Source Tracing

Against the backdrop of a high proportion of distributed renewable energy sources being integrated into the power grid, distribution networks are confronted with issues of grid-wide and decentralized harmonic pollution and voltage deviation, rendering traditional point-to-point governance methods in...

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Bibliographic Details
Published in:Processes Vol. 13; no. 10; p. 3268
Main Authors: Zhou, Xin, Ma, Zun, Zhao, Hongwei, Zou, Hongbo
Format: Journal Article
Language:English
Published: Basel MDPI AG 13.10.2025
Subjects:
Algorithms
Alternative energy sources
Analysis
Electric potential
Harmonic control
Harmonic distortion
Maintenance costs
Mathematical models
Optimization
Reactive power
Renewable energy sources
Renewable resources
Sensitivity
Tracing
Voltage
Iran
ISSN:2227-9717, 2227-9717
Online Access:Get full text
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Summary:Against the backdrop of a high proportion of distributed renewable energy sources being integrated into the power grid, distribution networks are confronted with issues of grid-wide and decentralized harmonic pollution and voltage deviation, rendering traditional point-to-point governance methods inadequate for meeting collaborative governance requirements. To address this problem, this paper proposes a source-tracing-oriented harmonic mitigation and optimization control strategy for distribution networks. Firstly, it identifies regional dominant harmonic source mitigation nodes based on harmonic and reactive power sensitivity indices as well as comprehensive voltage sensitivity indices. Subsequently, with the optimization objectives of reducing harmonic power loss and suppressing voltage fluctuation in the distribution network, it configures the quantity and capacity of voltage-detection-based active power filters (VDAPFs) and Static Var Generators (SVGs) and solves the model using an improved Spider Jump algorithm (SJA). Finally, the effectiveness and feasibility of the proposed method are validated through testing on an improved IEEE-33 standard node test system. Through analysis, the proposed method can reduce the voltage fluctuation rate and total harmonic distortion (THD) by 2.3% and 2.6%, respectively, achieving nearly 90% equipment utilization efficiency with the minimum investment cost.
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ISSN:2227-9717
2227-9717
DOI:10.3390/pr13103268