HITACHI High-Voltage Motor Drive Energy Conservation Service-New Business Model "HDRIVE"

Yabutani, Takashi

doi:10.2524/jtappij.60.840

Cited by 3 publications

(3 citation statements)

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“…In this situation, variable speed drive (VSD) systems through the use of the inverter technology permit high control range, high rate of change of speed and overall low starting inrush currents (Yabutani 2006). Figure 3 shows the standard and the variable speed system architecture, in which the on-off control is substituted by a VSD.…”

Section: Introductionmentioning

confidence: 99%

Energy saving in case of intermittent production by retrofitting service plant systems through inverter technology: a feasibility study

Faccio

Gamberi

2013

International Journal of Production Research

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Many production machines have high energy consumption due to the large number of electrical motors used to rotate equipment, such as tools, fans and pumps. Moreover, in different industrial sectors production is not continuous but intermittent, where working times alternate with idle times. During idle times continuous switch off is not always possible due to technical limitations, and if it is possible, it can cause higher energy consumption due to peak current at the start-up of the electrical motors. The purpose of this paper is to introduce the possibility of managing intermittent production using inverter technology. The inverter provides power control by managing the frequency and voltage of the power supplied to the alternating current motors. The study analyses the potential energy consumption reduction as a function of the production parameters (number of daily stops, average working time, etc.) and develops a feasibility analysis, its related investment cost and its potential energy consumption reduction. As a result, the proposed feasibility study defines the set of production parameters and the types of equipment for which this technology is suitable, bringing rapid investment payback. The proposed feasibility analysis is validated by an industrial case study related to a tannery spray plant.

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Section: Introductionmentioning

confidence: 99%

Energy saving in case of intermittent production by retrofitting service plant systems through inverter technology: a feasibility study

Faccio

Gamberi

2013

International Journal of Production Research

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“…Moreover, due to the high flexibility actually required of the production systems in terms of the production mix variation, daily production batches and production throughput variation, the 'on-off control' systems nowadays present serious drawbacks. As an effect, the authors highlight how the rotational speed control performed through the VSD system is actually the most significant energy-saving potential for the control range, a high rate of change of speed and overall low starting inrush currents (Yabutani, 2006). There still remains huge potential for energy saving by retrofitting existing fixed-speed induction motors (Schmitt and Sommer, 2001).…”

Section: Literature Reviewmentioning

confidence: 99%

“…This means rapid changes of the production system throughput, changes of the production mix, low batch sizes and high daily batch numbers. In this situation, VSD systems, through the use of the inverter technology, permit a high control range, a high rate of change of speed and overall low starting inrush currents (Yabutani, 2006). The possibility to retrofit, i.e., to upgrade existing industrial equipment through the use of inverter technology, applies to almost 100% of the AC electric motors actually used within production systems.…”

Section: Introductionmentioning

confidence: 99%

Energy saving in operations management through variable-speed drive technology: environmental versus economic convenience

Faccio

Gamberi

2017

IJSOM

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CO 2 emissions are mainly due to electricity generation. The percentage of electrical energy used within industry rises up to 70% in industrialised countries and electrical motors use the greatest part. Due to the high degree of flexibility required in production systems, the classical on-off control system causes large energy losses due to mismatches between the output power of fixed-speed motors and the mechanical power demands of the electromechanical system. Variable-speed drive (VSD) systems, developed through the inverter-fed alternating current technology, are identified as the motor system technology with the most significant energy-saving potential. The purpose of this paper is to analyse and compare both the economic and the environmental benefits related to the potential retrofitting of existing production systems managed using the traditional on-off control according to different variable typologies: the flexibility requirement variables, the production system variables and the variables related to the specific country considered. As a result, the paper identifies the relation between the two economic and environmental objectives according to the analysed variables. Two company cases are reported in order to demonstrate both the economic and the environmental benefits of applying the VSD technology to existing production systems.Keywords: variable-speed drive; VSD; inverter; production flexibility; CO 2 emissions; energy saving.Reference to this paper should be made as follows: Faccio, M. and Gamberi, M. (2017) Energy saving in operations management through variable-speed drive 69

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Plants Selection Method for Equipment Service Considering Use Effect Risk

2012

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HITACHI High-Voltage Motor Drive Energy Conservation Service-New Business Model "HDRIVE"

Cited by 3 publications

References 0 publications

Energy saving in case of intermittent production by retrofitting service plant systems through inverter technology: a feasibility study

Energy saving in case of intermittent production by retrofitting service plant systems through inverter technology: a feasibility study

Energy saving in operations management through variable-speed drive technology: environmental versus economic convenience

Plants Selection Method for Equipment Service Considering Use Effect Risk

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