Extension of Distribution Transformer Life in the Presence of Smart Inverter-based Distributed Solar Photovoltaic Systems

Kanhaiya Kumar; Saran Satsangi; Ganesh Balu Kumbhar

doi:10.17775/CSEEJPES.2022.06060

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Extension of Distribution Transformer Life in the Presence of Smart Inverter-based Distributed Solar Photovoltaic Systems

Regular Papers | 更新时间：2026-10-15

- Extension of Distribution Transformer Life in the Presence of Smart Inverter-based Distributed Solar Photovoltaic Systems
- Extension of Distribution Transformer Life in the Presence of Smart Inverter-based Distributed Solar Photovoltaic Systems
- 中国电机工程学会电力与能源系统学报(英文) 2024年10卷第1期页码：88-95
- 作者机构：
  
  1. Department of Electrical and Electronics Engineering, Motihari College of Engineering, Motihari, Bihar,India
  2. Department of Electrical Engineering, National Institute of Technology (NIT) Patna, Patna, Bihar,India
  3. Department of Electrical Engi-neering, Indian Institute of Technology (IIT) Roorkee, Roorkee, Uttarakhand,India
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2022.06060
  中图分类号：
- 纸质出版：2024-01-01
- 稿件说明：
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Kanhaiya Kumar, Saran Satsangi, Ganesh Balu Kumbhar. Extension of Distribution Transformer Life in the Presence of Smart Inverter-based Distributed Solar Photovoltaic Systems[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(1):88-95.

Kanhaiya Kumar, Saran Satsangi, Ganesh Balu Kumbhar. Extension of Distribution Transformer Life in the Presence of Smart Inverter-based Distributed Solar Photovoltaic Systems[J]. CSEE Journal of Power and Energy Systems, 2024, 10(1): 88-95.
Kanhaiya Kumar, Saran Satsangi, Ganesh Balu Kumbhar. Extension of Distribution Transformer Life in the Presence of Smart Inverter-based Distributed Solar Photovoltaic Systems[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(1):88-95. DOI： 10.17775/CSEEJPES.2022.06060.

Kanhaiya Kumar, Saran Satsangi, Ganesh Balu Kumbhar. Extension of Distribution Transformer Life in the Presence of Smart Inverter-based Distributed Solar Photovoltaic Systems[J]. CSEE Journal of Power and Energy Systems, 2024, 10(1): 88-95. DOI： 10.17775/CSEEJPES.2022.06060.

摘要

Abstract

A transformer is an essential but expensive power delivery equipment for a distribution utility. In many distribution utilities worldwide

a sizable percentage of transformers are near the end of their designed life. At the same time

distribution utilities are adopting smart inverter-based distributed solar photovoltaic (SPV) systems to maximize renewable generation. The central objective of this paper is to propose a methodology to quantify the effect of smart inverter-based distributed SPV systems on the aging of distribution transformers. The proposed method is first tested on a modified IEEE-123 node distribution feeder. After that

the procedure is applied to a practical distribution system

i.e.

the Indian Institute of Technology (IIT) Roorkee campus

India. The transformer aging models

alongside advanced control functionalities of grid-tied smart inverter-based SPV systems

are implemented in MATLAB. The open-source simulation tool (OpenDSS) is used to model distribution net-works. To analyze effectiveness of various inverter functionalities

time-series simulations are performed using exponential load models

considering daily load curves from multiple seasons

load types

current harmonics

etc. Findings show replacing a traditional inverter with a smart inverter-based SPV system can enable local reactive power generation and may extend the life of a distribution transformer. Simulation results demonstrate

simply by incorporating smart inverter-based SPV systems

transformer aging is reduced by 15% to 22% in comparison to SPV systems operating with traditional inverters.

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references

28. National Renewable Energy Laboratory. India Solar Resource Data . [Online ] . Available: http://rredc.nrel.gov/solar/newdata/India/nearestcell.cgi.

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