A quantification of the energy savings by Conservation Voltage Reduction

Ellens, Wendy; Berry, Adam; West, Sam

doi:10.1109/powercon.2012.6401391

Cited by 47 publications

(30 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The CVR f obtained in different published assessments vary between 0.40 and 1.00 [3] and the maximun achievable has been estimated in 2.00 [2].…”

Section: Introductionmentioning

confidence: 96%

“…Although the number of constant power devices is increasing over time the increase of energy consumption is very small compared to the energy savings by constant impedance devices. "As long as the energy consumed by constant power devices is at most fifty time smaller than the energy consumed by constant power devices, CVR will reduce the energy consumption" [2].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Combined comparison-regression method for assessment of CVR effects

Vega‐Fuentes

Rosario

Cerezo-Sanchez

et al. 2014

2014 55th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

View full text Add to dashboard Cite

This paper introduces a combined comparison and regression method to quantify a credible estimation of the energy saving effect produced by Conservation Voltage Reduction (CVR). It is presented as a step by step tutorial on how to assess CVR effects with existing resources and tools at every control room in electrical distribution utilities. The method was tested in a distribution network in Canary Islands (Spain) resulting a CVR factor of 0.8211 and 9.42 MWh saved during one day operating with 2.97 % voltage reduction, equivalent to the consumption of 848 households in the region.

show abstract

“…The CVR f obtained in different published assessments vary between 0.40 and 1.00 [3] and the maximun achievable has been estimated in 2.00 [2].…”

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Combined comparison-regression method for assessment of CVR effects

Vega‐Fuentes

Rosario

Cerezo-Sanchez

et al. 2014

2014 55th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

View full text Add to dashboard Cite

show abstract

“…To reduce the thermal stress for the semiconductors, the grid forming converter can exploit its capability to control the voltage in the grid to shape the load consumption and thus to reduce the power variations in the grid forming converter [4]. The possibility to decrease the load consumption lowering the voltage has been already considered in the Conserva-tion Voltage Regulation (CVR) approach for energy saving purposes [5]. However, the voltage set-point is controlled in open-loop and the load sensitivity to voltage are not taken into account.…”

Section: Introductionmentioning

confidence: 99%

Active Thermal Control of Asynchronously-Connected Grids Considering Load Sensitivity to Voltage

Andresen

Carne

Schloh

et al. 2018

2018 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

A new concept in the power system management is the asynchronous connection of grids. This connection occurs at different voltage and power level: high voltage, with HVDC systems, and medium/low voltage, with back-to-back converters and Smart Transformers. The decoupling of the power flow between the two grids allows higher controllability, including the possibility to control grid voltage and frequency independently in the two grids. This work aims to investigate and mitigate the thermal stress in grid-forming converters (e.g., Smart Transformers) applying a load voltage-sensitivity control. Depending on the nature of the loads, their power consumption varies with the voltage. This response is dependent on the connected loads and can be characterized by constant power (independent from the voltage), constant current (linearly dependent on the voltage) and constant impedance behavior (squared-dependent on the voltage). The sensitivity to voltage is exploited to control the load power consumption, reducing the junction temperature fluctuations and thus the power semiconductors stress. As a consequence, the converter operational range can be increased, reducing at the same time the stress for the power semiconductors.

show abstract

“…It follows from Ohm's law V = IR that lowering the voltage level reduces the power when the load consists of pure resistors with constant resistance R, because in that case we have P = V 2 / R. In reality, this is true if loads are constant-resistance (hot water system, fridge, oven, incandescent lighting, pool pump, etc.) [3].…”

Section: Introductionmentioning

confidence: 99%

A Practical Approach to Energy Conservation Through Lighting in a Railway Workshop (A Practical Case Study)

Sathiyanarayanan¹,

Simon²,

Sundareswaran³

2016

IJERT

View full text Add to dashboard Cite

There are two main forms of energy that are consumed by industries, namely, oil and electricity. Globally, industrial electrical energy usage accounts for 40% of total usage and is a major contributor to CO2 emissions. There are several different uses of electrical energy in a factory, such as lighting, cooling, heating and supplying power to machineries. The electrical energy saving potential of industry systems largely remains unrealized because it is deeply embedded in industrial management and operational practices. Lighting is an essential part of any industrial load, and hence, it plays a vital role in reducing inflated energy bills. This paper describes two practical measures that have been implemented in a railway workshop and the energy saving achieved in lighting. Energy savings in lighting not only reduces the energy bill but also reduces CO2 emissions.

show abstract

A quantification of the energy savings by Conservation Voltage Reduction

Cited by 47 publications

References 9 publications

Combined comparison-regression method for assessment of CVR effects

Combined comparison-regression method for assessment of CVR effects

Active Thermal Control of Asynchronously-Connected Grids Considering Load Sensitivity to Voltage

A Practical Approach to Energy Conservation Through Lighting in a Railway Workshop (A Practical Case Study)

Contact Info

Product

Resources

About