Single-phase AC supply

Khader, Sameer; Daud, Abdel Karim Khaled

doi:10.1016/b978-0-12-804448-3.00009-8

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…As asymmetry is introduced in the system, constructive and deconstructive contributions are likely to appear. Variations in capacitive and inductive values, different impedances can lead to changes in both amplitude and ripple phase shift [10].…”

Section: Centralized and Localized Suppressionmentioning

confidence: 99%

Tradeoffs of Centralized Versus Localized Filtering Solutions for AEA

Malburg,

Moonen,

Leferink

2023

2023 IEEE Symposium on Electromagnetic Compatibility &Amp; Signal/Power Integrity (EMC+SIPI)

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All-electric aircraft (AEA) require an increased number of power converters, making it potentially more susceptible to electromagnetic interference (EMI). As aircraft rely on strict volume and weight limits, mitigation methods must be developed to minimize their impact on the overall bulkiness. The operation of a multi-converter distribution system supplied by a single dc power source is investigated in this paper. Filtering methods are typically implemented at each converter independently, however, a centralized approach is here investigated. Common and differential mode EMI levels are evaluated, resulting in the design of gamma-pi type EMI filters. The solutions are compared for centralized against localized filters, evaluating performance, variables influencing design decisions, and overall size optimization.

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Section: Centralized and Localized Suppressionmentioning

confidence: 99%

Tradeoffs of Centralized Versus Localized Filtering Solutions for AEA

Malburg,

Moonen,

Leferink

2023

2023 IEEE Symposium on Electromagnetic Compatibility &Amp; Signal/Power Integrity (EMC+SIPI)

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“…Power factor is a measure of how efficiently an electrical energy is converted to useful work output. It is the ratio between active power (kwh) to the apparent power consumed by an alternating current device [19,20], where the apparent power is the vector sum of the active and reactive power. That is, The active power is also called the useful power, which is the power used to produce effective work.…”

Section: Energy Infrastructure and Policy In Ghanamentioning

confidence: 99%

The Impact of an Energy Efficiency Improvement Policy on the Economic Performance of Electricity-Intensive Firms in Ghana

Lee

Lotsu²,

Islam

et al. 2019

Energies

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This paper investigates the economic impact of an energy efficiency improvement policy on electricity-intensive firms in Ghana. The policy imposed a penalty on these electricity-intensive firms, which are referred to as special load tariff (SLT) customers, when their power factor was below 90%. This paper applies the regression discontinuity design (RDD) to the panel data of these SLTs ranging from 1994 to 2012, excluding those years characterized by energy crisis. The results show adverse impacts of the policy on the employment and salary levels of the firms in the long run, in particular, the small- and medium–voltage firms. The results indicate that small- and medium–voltage firms are economically vulnerable to the penalty policy in the long run and recommend two policies to overcome this challenge. Firstly, the penalty for power factor improvement should not be imposed identically across firms with different voltage levels. Secondly, firms that satisfy the power factor standard should receive subsidies to improve their competitiveness in the market.

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Single-phase AC supply

Cited by 2 publications

References 3 publications

Tradeoffs of Centralized Versus Localized Filtering Solutions for AEA

Tradeoffs of Centralized Versus Localized Filtering Solutions for AEA

The Impact of an Energy Efficiency Improvement Policy on the Economic Performance of Electricity-Intensive Firms in Ghana

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