Control of Three-Phase Inverter for AC Motor Drive With Small DC-Link Capacitor Fed by Single-Phase AC Source

Jung, Hyun-Sam; Chee, Seung-Jun; Sul, Seung-Ki; Park, Young-Jae; Park, Hyunsoo; Kim, Woo-Kyu

doi:10.1109/tia.2013.2288238

Cited by 102 publications

(16 citation statements)

References 19 publications

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“…where v pk and i pk are the peak values of the AC mains voltage and current, respectively; θ grid is the phase angle of the AC mains voltage; and θ grid can be sensed from the AC mains voltage using an additional hardware or can be estimated from the DC-link voltage ripples [3]. In the same condition, the DC-link capacitor power p c can be calculated as follows [4]:…”

Section: Power Factor Correction Through Inverter Output Power Comentioning

confidence: 99%

“…Various control strategies have been introduced in [3][4][5][6]] to obtain a high power factor at the AC mains through the inverter output power control. In this study, the d-q axes current command generation method presented in [4] was utilized.…”

Section: Power Factor Correction Through Inverter Output Power Comentioning

confidence: 99%

“…An inverter output power control-based PFC strategy that involves removing the PFC circuits and replacing large electrolytic DC-link capacitors with a small film capacitor, as shown in Fig. 1(b), is currently gaining attention in the appliance industry because this strategy can significantly reduce the cost and size of the inverter [3]- [6]. Fig.…”

Section: Introductionmentioning

confidence: 99%

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Compensation of Periodic Magnetic Saturation Effects for the High-Speed Sensorless Control of PMSM Driven by Inverter Output Power Control-based PFC Strategy

Lee¹

2015

Journal of Power Electronics

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An inverter output power control based power factor correction (PFC) strategy is being extensively used for permanent magnet synchronous motor (PMSM) drives in appliances because such a strategy can considerably reduce the cost and size of the inverter. In this strategy, PFC circuits are removed and large electrolytic DC-link capacitors are replaced with small film capacitors. In this application, the PMSM d-q axes currents are controlled to produce ripples, the frequency of which is twice that of the AC main voltage, to obtain a high power factor at the AC mains. This process indicates that the PMSM operates under periodic magnetic saturation conditions. This paper proposes a back electromotive-force (back-EMF) estimator for the high-speed sensorless control of PMSM operating under periodic magnetic saturation conditions. The transfer function of the back-EMF estimator is analyzed to examine the effect of the periodic magnetic saturation on the accuracy of the estimated rotor position. A simple compensation method for the estimated position errors caused by the periodic magnetic saturation is also proposed in this paper. The effectiveness of the proposed method is experimentally verified with the use of a PMSM drive for a vacuum cleaner centrifugal fan, wherein the maximum operating speed reaches 30,000 rpm.

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Section: Power Factor Correction Through Inverter Output Power Comentioning

confidence: 99%

Section: Power Factor Correction Through Inverter Output Power Comentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Compensation of Periodic Magnetic Saturation Effects for the High-Speed Sensorless Control of PMSM Driven by Inverter Output Power Control-based PFC Strategy

Lee¹

2015

Journal of Power Electronics

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“…Torque Sharing Function for ripple reduction is the best method for high performance SRM drives [16]. DC link capacitors increase cost while decreasing reliability of the system [17,18]. Phase windings of SRM are used as large inductors for CSR.…”

Section: Introductionmentioning

confidence: 99%

Zero Torque Control of Switched Reluctance Motor for Integral Charging

Rashidi¹,

Namazi²,

Saghaian³

et al. 2017

The Transactions of The Korean Institute of Electrical Engineer

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-In this paper, a zero torque control scheme adopting current sharing function (CSF) used in integrated Switched Reluctance Motor (SRM) drive with DC battery charger is proposed. The proposed control scheme is able to achieve the keeping position (KP), zero torque (ZT) and power factor correction (PFC) at the same time with a simple novel current sharing function algorithm. The proposed CSF makes the proper reference for each phase windings of SRM to satisfy the total charging current of the battery with zero torque output to hold still position with power factor correction, and the copper loss minimization during of battery charging is also achieved during this process. Based on these, CSFs can be used without any recalculation of the optimal current at every sampling time. In this proposed integrated battery charger system, the cost effective, volume and weight reduction and power enlargement is realized by function multiplexing of the motor winding and asymmetric SR converter. By using the phase winding as large inductors for charging process, and taking the asymmetric SR converter as an interleaved converter with boost mode operation, the EV can be charged effectively and successfully with minimum integral system. In this integral system, there is a position sliding mode controller used to overcome any uncertainty such as mutual inductance or DC offset current sensor. Power factor correction and voltage adaption are obtained with three-phase buck type converter (or current source rectifier) that is cascaded with conventional SRM, one for wide input and output voltage range. The practicability is validated by the simulation and experimental results by using a laboratory 3-hp SRM setup based on TI TMS320F28335 platform.

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“…The dc-link voltage variation under voltage sag and its dependence on source impedance, dc-link inductance, and output load have been computed [24]. A control strategy based on the concept of average voltage constraint has been suggested for a capacitor-less inverter drive fed by a single-phase ac source [25].…”

Section: Introductionmentioning

confidence: 99%

A Ripple Rejection Inherited RPWM for VSI Working with Fluctuating DC Link Voltage

Subburaj¹,

Bright²

2015

Journal of Electrical Engineering and Technology

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-A two stage ac drive configuration consisting of a single-phase line commutated rectifier and a three-phase voltage source inverter (VSI) is very common in low and medium power applications. The deterministic pulse width modulation (PWM) methods like sinusoidal PWM (SPWM) could not be considered as an ideal choice for modern drives since they result mechanical vibration and acoustic noise, and limit the application scope. This is due to the incapability of the deterministic PWM strategies in sprawling the harmonic power. The random PWM (RPWM) approaches could solve this issue by creating continuous harmonic profile instead of discrete clusters of dominant harmonics. Insufficient filtering at dc link results in the amplitude distortion of the input dc voltage to the VSI and has the most significant impact on the spectral errors (difference between theoretical and practical spectra). It is obvious that the sprawling effect of RPWM undoubtedly influenced by input fluctuation and the discrete harmonic clusters may reappear. The influence of dc link fluctuation on harmonics and their spreading effect in the VSI remains invalidated. A case study is done with four different filter capacitor values in this paper and results are compared with the constant dc input operation. This paper also proposes an ingenious RPWM, a ripple dosed sinusoidal referencerandom carrier PWM (RDSRRCPWM), which has the innate capacity of suppressing the effect of input fluctuation in the output than the other modern PWM methods. MATLAB based simulation study reveals the fundamental component, total harmonic distortion (THD) and harmonic spread factor (HSF) for various modulation indices. The non-ideal dc link is managed well with the developed RDSRRCPWM applied to the VSI and tested in a proto type VSI using the field programmable gate array (FPGA). Keywords:Ripple dosed sinusoidal reference random carrier pulse width modulation (RDSRRCPWM), Random pulse width modulation (RPWM), Harmonic spread factor (HSF), Voltage source inverter (VSI).

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Control of Three-Phase Inverter for AC Motor Drive With Small DC-Link Capacitor Fed by Single-Phase AC Source

Cited by 102 publications

References 19 publications

Compensation of Periodic Magnetic Saturation Effects for the High-Speed Sensorless Control of PMSM Driven by Inverter Output Power Control-based PFC Strategy

Compensation of Periodic Magnetic Saturation Effects for the High-Speed Sensorless Control of PMSM Driven by Inverter Output Power Control-based PFC Strategy

Zero Torque Control of Switched Reluctance Motor for Integral Charging

A Ripple Rejection Inherited RPWM for VSI Working with Fluctuating DC Link Voltage

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