Impact of power factor correction on low power inverter-fed induction motor drive system

Krishnan, R.; Diamantidis, Dimitrios; Lee, S.

doi:10.1109/pesc.1995.474869

Cited by 6 publications

(5 citation statements)

References 2 publications

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“…These transient over voltages, if large enough, can damage sensitive power electronic devices. The impact of the power factor correction circuit on induction motor drive system, in which the power factor correction circuit has a single power device with a forward diode in the boost configuration, has been analyzed [4]. The above approach increases the losses in diode and bridge rectifier and consequently decreases the system efficiency.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Double Boost Converter Powered FSTPI Fed Induction Motor

Saravanasundaram¹,

Muthukrishnan²,

Murugananth³

2016

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Pulse Width Modulated (PWM) inverter-fed induction motor drives are most common in industrial applications. This paper aims at development of double boost converter for PWM inverter-fed three-phase induction motor. The inverter topology is designed with four switches. The proposed drive system has been simulated using Matlab/Simulink and the performance of has been assessed in terms of output voltage, output current, power factor and THD. From the simulation results, it is evident that the three-phase voltage waveforms of the proposed system are less distorted, with their currents being more sinusoidal. A comparative analysis has been made with the conventional six-switch inverter fed drive. The proposed system offered a THD of 1.84%, whereas for the conventional system it was 13.96%. These results inferred that the proposed double boost converter with four-switch based drive scheme exhibits superior performance.

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Section: Introductionmentioning

confidence: 99%

Performance Analysis of Double Boost Converter Powered FSTPI Fed Induction Motor

Saravanasundaram¹,

Muthukrishnan²,

Murugananth³

2016

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“…The overall aciency of the motor drive both calculated using procedure outlined in [3] and measured are shown in figure 13 for a fan load. Figure 14 shows the predicted and measured induction motor and drive efficiencies that contributed to the system efficiency curves shown in figure 12.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 14 shows the predicted and measured induction motor and drive efficiencies that contributed to the system efficiency curves shown in figure 12. Results for other types of loads with and without power factor correction are available in [3]. The following contributions are considered to be novel (i) A low cost (i.e., less than S35hp based on 10, OOO quantities) and high density packaged (of less than 100 cubic inches) one hp inverter controller drive for induction motor has been designed, realized and tested for emerging high volume but low cost variable speed applications.…”

Section: Resultsmentioning

confidence: 99%

Design and development of a low cost inverter drive for induction motors

Diamantidis

Krishnan

Lee

Proceedings of Applied Power Electronics Conference. APEC '96

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AbstrucZ -The growth in high volume market in variable speed drives is expected due to emerging applications in home appliances, hvac drives, professional hand tools, automobile accessories, fans, pumps, and process drives. Almost all of these applications do not require precise positioning or speed control and hence of low performance types. They are very costsensitive as the make or break decision about their introduction is primarily decided by the cost only, in spite of their advantages in terms of energy savings and control and operational fleribilities. The inverter Controlled induction motor drive is a strong competitor for such applications due to the low cost of the motor and to its inherent features such as the simplicity of control requiring no sensors in these low performance applications, brushless as it has no slip rings thus making it truly almost maintenance-free, robust and proven construction and operation. But most of the variable speed induction motor drive's cost comes from the inverter and its controller. These low performance applications require less than or equal to $35 per hp in the cost of the inverter and its controller. In addition is the requirement that the packaging be smallest possible compared to the currently available in the market place and should be within 100 cubic inches including the enclosure.This paper addresses issues of design and development of such a low cost inverter and its controller to obtain one hp variable speed induction motor drives. The various issues addressed in detail are: specifications, appropriate control strategy and drive confmration, design of control circuits, their layout in printed circuit boards, layout of power circuit, switching and conduction losses and development of compact cooling arrangement, tuning, ease of manufacturability and packaging. Results from a fully packaged one horsepower experimental inverter controlled induction motor drive system are presented to correlate the key design aspects and design specifications. ACKNOWLEDGMENTAuthors are g r a t a to Mr. R Jordan, CEO and President,

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“…Poor power factors cause problems too [111]- [114]. The reactive power is usually very high for loads with poor power factor.…”

Section: • Transformermentioning

confidence: 99%

Power quality improvement using adaptive unified power quality conditioner

Kwan¹

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Conditioner iii seeks to develop adaptive, robust and cost-effective UPQCs that can not only be implemented easily, but also be fully utilized to solve a wide range of PQ problems concurrently and efficiently. Specifically, 2 model-based controlled UPQCs, namely the Multi-variable regulator (MVR) controlled UPQC and the Η ∞ controlled UPQC, are proposed and developed in this thesis. Their control strategy will also be direct, i.e., by making the outputs of the network (load voltage and supply current), to track certain desired waveforms directly. This approach provides direct feedback to the controller and shows how well the PQ of the network outputs can be improved. Zero steady-state tracking error can be ensured if there is no modeling error. Otherwise, the controllers will seek to mitigate the negative effects introduced by any modeling error. The coupling effect between the series and shunt filters is also taken care of by the controller to enhance the robustness of the UPQC. To reduce implementation cost and complexity, digital Kalman filters are implemented in place of hardware sensors, while any control gains are calculated offline and then implemented as constant gains online. All in all, the proposed UPQCs are able to handle most power quality problems such as issues harmonic distortions, power factor correction and voltage sags/swells satisfactorily and concurrently. Furthermore, to address increasing concerns over climate changes and energy security, this research proposes and develops a proton exchange membrane fuel cell (PEMFC) with ultra-capacitor based UPQC. This UPQC will not only handle most PQ problems but also perform load sharing with the grid supported by a hybrid ATTENTION: The Singapore Copyright Act applies to the use of this document. Nanyang Technological University Library NANYANG TECHNOLOGICAL UNIVERSITY School of Electrical and Electronic Engineering Power Quality Improvement using Adaptive Unified Power Quality Conditioner iv system of the PEMFC and ultra-capacitor. Another model-based controller based on the Model Predictive Control theory is also developed to control the UPQC. This results in a comprehensive UPQC that operates in a clean and green way to achieve energy efficiency, power quality, availability and reliability of the network.

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Impact of power factor correction on low power inverter-fed induction motor drive system

Cited by 6 publications

References 2 publications

Performance Analysis of Double Boost Converter Powered FSTPI Fed Induction Motor

Performance Analysis of Double Boost Converter Powered FSTPI Fed Induction Motor

Design and development of a low cost inverter drive for induction motors

Power quality improvement using adaptive unified power quality conditioner

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