Power Factor Correction Circuits

Batarseh, Issa; Wei, Huai

doi:10.1016/b978-0-12-382036-5.00019-7

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…The optimum inductor of DC-DC boost converter can be expressed as (2). For output capacitor design, the output voltage ripple must be considered as stated in [9]. The capacitor of DC-DC boost converter can be expressed as (3).…”

Section: Parameters Design and Discussion Of Dc-dc Converter With Hard-switching And Soft Switching Implementations 31 Hard-switching Impmentioning

confidence: 99%

“…During hard-switching condition, there is high voltage spike at turn-ON and high current spike at turn-OFF which cause switching loss and switching stress [7]. Then by adding RC snubber it reduces the over voltages during turn-ON and over current at turn-OFF transition in hard switching which can reduce the switching loss [9]. As stated in [7], the soft-switching can totally eliminate the switching loss where gives a better performance in terms of efficiency to the power converter.…”

Section: Principle Of Hard-switching and Soft-switching Techniquesmentioning

confidence: 99%

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DC-DC converter with 50 kHz-500 kHz range of switching frequency for passive component volume reduction

Kasiran

Ponniran

Siam

et al. 2021

IJECE

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This paper presents the relationship of switching frequency towards passive components volume of DC-DC boost converter. Principally, the inductor current ripple and capacitor voltage ripple must be considered in order to design the inductor and capacitor, respectively. By increasing the switching frequency, smaller size and volume of passive component can be designed. As the consequences, the switching loss increases during switching transition at turn-ON and turn-OFF conditions. This paper used soft-switching technique to reduce the switching loss at turn-ON condition. The soft-switching technique is realized by adding resonant circuit in DC-DC boost converter. The effectiveness of resonant circuit will be analysed, thus, the efficiency of the converter can be improved. The range of switching frequency considered in the experimental are 50 kHz to 500 kHz. A 100 W prototype has been developed and tested in order to verify the principle. The switching loss experimentally confirm reduced by implementing soft-switching technique with efficiency converter improved from 96.36% to 97.12% when 500 kHz of switching frequency is considered. The passive components volume reduction is achieved when high switching frequency is used where the total volume of passive component when 50 kHz and 500 kHz are 0.083 dm3 and 0.010 dm3, respectively.

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Section: Parameters Design and Discussion Of Dc-dc Converter With Hard-switching And Soft Switching Implementations 31 Hard-switching Impmentioning

confidence: 99%

Section: Principle Of Hard-switching and Soft-switching Techniquesmentioning

confidence: 99%

DC-DC converter with 50 kHz-500 kHz range of switching frequency for passive component volume reduction

Kasiran

Ponniran

Siam

et al. 2021

IJECE

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“…The power factor is defined as "the phase angle between voltage current" [8]. For unity power factor the phase angle between voltage and current must be 0 [9]. But in practice it is not possible to do so, therefore it is required to improve the power factor near to the unity.…”

Section: Working Of Induction Motor At Low Power Factormentioning

confidence: 99%

Correctness in Power Factor of Induction Motor by using Active Filters

2019

IJITEE

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This paper proposes a novel method of correcting power factor of an induction motor by the making the use of active power filters. In the electrical power system mostly 80% to 85% power factor is reduced by using induction motor as a load in various industries for acting as a prime mover. The induction motor running with a little power factor may cause power quality problems in the electrical power system. Due to very little power factor the load draws high starting current from the electrical grid, this causes various problems like voltage fluctuation, voltage sag and sometimes warmth the winding of the induction machine. Therefore, it is required to develop a method which uses active filters for improving the power factor of the induction motor

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“…In addition to the changes in the structure and operating conditions of the power systems outlined above, changes in reactive energy consumption have been observed in recent years, in particular in the case of customers connected at a low-voltage level, which is due to the increased use of power converters within household appliances [62][63][64]. Not only is the share of devices such as players, computers, routers, or printers growing within household appliances, but also LED light systems using electronic electricity converters are becoming common [65], and large quantities of heat pumps or air conditioners powered by electronic converters with power factor correction circuits are also installed [66].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Optimal Level of Reactive Power Compensation That Minimizes the Costs of Losses in Distribution Networks

Andruszkiewicz,

Lorenc,

Weychan

2023

Energies

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The objective of the presented paper is to verify economically justified levels of reactive energy compensation in the distribution network in the new market conditions, including the extensive use of smart metering systems, new types of load, or distributed generation. The proposed methodology is based on the minimization of annual costs of losses caused by the flow of reactive energy to the supplied loads through the equivalent resistance of the distribution system determined on the basis of statistical energy losses in this network. The costs of losses are compared to the costs of using compensating devices expressed by the levelized costs of reactive energy generation. The results are the relations describing the optimal annual average value of the tgφ factor to be maintained by customers to optimize the cost of loss of the distribution network caused by reactive energy flows. The dependence of the optimal tgφ value on the analyzed load and network parameters is also discussed. The resulting optimal tgφ levels should be considered in the tariffication process of services offered by distribution system operators to improve capacity and limit the costs of power network operation due to reactive energy transmission.

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Power Factor Correction Circuits

Cited by 6 publications

References 17 publications

DC-DC converter with 50 kHz-500 kHz range of switching frequency for passive component volume reduction

DC-DC converter with 50 kHz-500 kHz range of switching frequency for passive component volume reduction

Correctness in Power Factor of Induction Motor by using Active Filters

Determination of the Optimal Level of Reactive Power Compensation That Minimizes the Costs of Losses in Distribution Networks

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