Estimation of Conservation Voltage Reduction Factors Using Measurement Data of KEPCO System

Shim, Kyung Mi; Go, Seok-Il; Yun, Sang-Yun; Lim, Young‐Cheol; Nam-Koong, Won; Shin, Chang-Hoon; Ahn, Seon-Ju

doi:10.3390/en10122148

Cited by 10 publications

(5 citation statements)

References 10 publications

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“…In the literature, the factor denoted as CVRP (Eq. 1) allows to quantify the efficiency of the voltage reduction with respect to the active power [25][26]:…”

Section: Quantification Of the Effectiveness Of Cvrmentioning

confidence: 99%

Energy Saving Achieved by Conservation Voltage Reduction: Application to Induction Motor Loads

Boharb¹,

Markhi²,

Allouhi

et al. 2023

Preprint

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Conservation voltage reduction (CVR) can be used to achieve power savings and improve energy efficiency. In recent years, many studies and research have focused on the effect of reducing electrical voltage to loads. By analyzing these studies, one can notice contradictions on the fact that the CVR technique gives energy savings or not. But in most studies, the heights are based on the input power draw reduction without analyzing the output power and efficiency of the studied device, and this does not always give reliable results. In this article, we propose an energy saving measurement method applied to electric motors which are widely used in the majority of electrical appliances. This article presents a theoretical and experimental study and a detailed analysis on the influence of voltage reduction on electric induction motors.

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“…In the literature, the factor denoted as CVRP (Eq. 1) allows to quantify the efficiency of the voltage reduction with respect to the active power [25][26]:…”

Section: Quantification Of the Effectiveness Of Cvrmentioning

confidence: 99%

Energy Saving Achieved by Conservation Voltage Reduction: Application to Induction Motor Loads

Boharb¹,

Markhi²,

Allouhi

et al. 2023

Preprint

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show abstract

“…There are also constant power loads (large motor loads) that do not maximize the benefits from CVR, as the voltage reduction does not affect the power consumed by these loads. Many countries, such as the United Kingdom [14], Korea [15], and the United States of America [16] have implemented CVR with constructive results; however, CVR has not been implemented throughout the countries. It has been executed within a small vicinity on a few feeders.…”

Section: Literature Reviewmentioning

confidence: 99%

Energy Savings for Various Residential Appliances and Distribution Networks in a Malaysian Scenario

et al. 2023

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This paper presents a detailed study of the energy savings that can be achieved through residential appliances by implementing conservation voltage reduction (CVR). The computed energy savings are derived from the ZIP coefficients of a load model (static) under varying voltage conditions that represent the power consumed by each appliance tested. Multiple studies have shown energy savings at the substation level but not at the level of a specific residence and appliance; hence, the latter is the focus of this analysis. The appliances are determined based on the type of heating and cooling loads, and the daily duration of use for each appliance, which contributes to the total monthly consumption that is billed for a household are included in this study. Energy savings in Malaysia has been a focus of many current studies, and this study is the first attempt to achieve energy savings through the implementation of CVR. No published work has compared individual appliances that truly benefits from CVR, and this is addressed in this study. The main contribution of this study is that it provides very detailed and measured data that are used to analyze and generate energy savings for very specific residential appliances intended to meet every 1% voltage drop. The load model is developed for the common household appliances in Malaysia, and then a voltage reduction study is applied to the appliances as well as the Malaysian distribution networks. Here, we also provide insight for performing voltage reduction at an electric vehicle (EV) charging station in Malaysia. The results of this study should serve as a foundation for all practicing utilities engineers to address the issue of CVR in Malaysia. The CVR factors for residential, commercial, and industrial networks in Malaysia are also published in this paper.

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“…The annual savings for a 1 MW industrial plant is discussed in [47] and is promising. stage tests to cause a change in power [49].…”

Section: Challenges With This Approachmentioning

confidence: 99%

Improving Energy Efficiency and Productivity at Industrial Plants Using Dynamic Voltage Management

Jayaraman

Miranbeigi

Kandula

et al. 2020

IEEE Trans. on Ind. Applicat.

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Estimation of Conservation Voltage Reduction Factors Using Measurement Data of KEPCO System

Cited by 10 publications

References 10 publications

Energy Saving Achieved by Conservation Voltage Reduction: Application to Induction Motor Loads

Energy Saving Achieved by Conservation Voltage Reduction: Application to Induction Motor Loads

Energy Savings for Various Residential Appliances and Distribution Networks in a Malaysian Scenario

Improving Energy Efficiency and Productivity at Industrial Plants Using Dynamic Voltage Management

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