A Practical Investigation on Conservation Voltage Reduction for its Efficiency with Electric Home Appliances

Singaravelan, A.; Kowsalya, M.

doi:10.1016/j.egypro.2017.05.187

Cited by 9 publications

(3 citation statements)

References 10 publications

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“…Conservation voltage reduction is another important distribution voltage management application that reduces feeder voltage levels through on-load tap changers or through voltage regulators to reduce the total power consumption of the distribution grid. Conservation voltage reduction can also be regarded as a distribution grid peak load management service or a demand response service (Singaravelan and Kowsalya 2017).…”

Section: Customized Bilateral Contractmentioning

confidence: 99%

Federated Architecture for Secure and Transactive Distributed Energy Resource Management Solutions (FAST-DERMS)

Ding¹,

Liu²,

MacDonald³

et al. 2022

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This document provides system-level specifications for a federated architecture for secure and transactive distributed energy resource management solutions (FAST-DERMS), presents a solution, and describes operational concepts for the proposed solution. FAST-DERMS enables the provision of reliable, resilient, and secure transmission and distribution (T&D) grid services through the scalable aggregation and nearreal-time management of utility-scale and small-scale distributed energy resources (DERs).We first present the principles and objectives of FAST-DERMS. Then, after discussing important system concepts, we present the specifications for FAST-DERMS and a solution that employs a distributed and federated control methodology in which the DERs connected to a single point of common coupling with the rest of the system, such as individual substations, are optimized coordinately to provide system-level grid services.FAST-DERMS aims to aggregate and coordinate the operations of DERs to support T&D grid operations.The key optimization and control component of this FAST-DERMS reference implementation is a flexible resource scheduler (FRS) that aggregates the DERs within a substation service area. These FRSs operate at the substation level and perform constrained economic dispatch of DERs, either directly or through a transactive market or aggregator, as shown in Figure ES-1. An FRS Coordinator at the distribution system operator (DSO) level aggregates distribution substations operated by FRSs and interfaces with the transmission system operator (TSO) to provide transmission services. FAST-DERMS also allows for the integration of the FRS Coordinator with an existing distribution utility management system that could be employed by the DSO to enhance distribution grid operations.

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Section: Customized Bilateral Contractmentioning

confidence: 99%

Federated Architecture for Secure and Transactive Distributed Energy Resource Management Solutions (FAST-DERMS)

Ding¹,

Liu²,

MacDonald³

et al. 2022

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“…[11][12][13][14] [15].A. Singaravelan et al [16]tested the benefits of CVR on household appliances. The authors showed a possible energy reduction of about 64% on the consumption of the studied appliances.…”

Section: Introductionmentioning

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 [9], an experiment was performed to evaluate the effects of CVR on electric home appliances. It was observed that in the case of constant resistive load, the power consumption decreased with a reduction in the supply voltage.…”

Section: Introductionmentioning

confidence: 99%

Thermal-Electric Modeling: A New Approach for Evaluating the Impact of Conservation Voltage Reduction on Cooling Equipment

2023

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It has been suggested in the literature that by reducing the incoming voltage at a distribution feeder head or at the supply side of buildings, significant electricity savings can be achieved. This technique is called Conservation Voltage Reduction (CVR). Data-based analysis with and without CVR is primarily used to support such assertions, which does not explain the physics behind reduction in energy consumption with CVR. This paper presents a new approach for evaluating the impact of CVR on cooling equipment. In this approach, a thermal-electric model of the cooling process is developed in MATLAB’s SIMSCAPE toolbox that can be used to explain the physics behind energy reduction with CVR. This model includes an accurate model of a compressor coupled to an induction motor whose supply voltage can be varied to simulate CVR. Simulations performed using this model show that the Coefficient of Performance (COP) of cooling equipment improves with a reduction in supply voltage. However, the energy lost in the motor windings may nullify the impact of the improvement in the COP and render the CVR programs ineffective if the range of speed change is small over the allowable voltage change. The simulation results show an increase in energy consumption of 4% at 90% rated voltage compared to the energy consumed at the rated voltage. However, if variable frequency drives-based cooling equipment is appropriately controlled, it is possible to reduce their net energy consumption using CVR. Simulations performed keeping the ratio of the supply voltage and the frequency constant showed a reduction in energy consumption of 2.5% at 90% rated voltage compared to the energy consumed at the rated voltage. Thermal-electric modeling of building cooling equipment is, therefore, vital to accurately evaluating the benefits of CVR as smart, power electronics-based end-use equipment is globally adopted.

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A Practical Investigation on Conservation Voltage Reduction for its Efficiency with Electric Home Appliances

Cited by 9 publications

References 10 publications

Federated Architecture for Secure and Transactive Distributed Energy Resource Management Solutions (FAST-DERMS)

Federated Architecture for Secure and Transactive Distributed Energy Resource Management Solutions (FAST-DERMS)

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

Thermal-Electric Modeling: A New Approach for Evaluating the Impact of Conservation Voltage Reduction on Cooling Equipment

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