A Robust One-Cycle Controlled Full-Bridge Series-Parallel Resonant Inverter for a High-Frequency AC (HFAC) Distribution System

Ye, Zhongming; Lam, John; Jain, Praveen; Sen, P.C.

doi:10.1109/tpel.2007.909190

Cited by 47 publications

(33 citation statements)

References 30 publications

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“…According to [30], the reflected resistance of the secondary circuit is given as: The kth parallel unit is connected in series with a connection inductor L ek , which is used to suppress the circulating current in the parallel-connected inverter IPT system. The value of L ek is very small, so that the voltage drop and power losses over the resistance of connection inductors can be neglected [29]. The compensation capacitor C P is connected in series with the primary coil L P .…”

Section: Principle Description Of the Parallel-connected Inverter Topmentioning

confidence: 99%

“…Δi , the quality factor of the series resonant tank, defined as the ratio of the impedance of the series resonant inductor to the equivalent resistor of the load [29], should be large enough. Nevertheless, the larger the quality factor of the series resonant tank is, the heavier the inductor will be.…”

Section: Har2mentioning

confidence: 99%

“…The resonant frequency of the series resonant tank is tuned to a little lower than the operating frequency. In addition, the resonant frequency of the parallel resonant tank is tuned to a little higher than the operating frequency [29]. The equivalent circuit of the IPT system is shown in Figure 5 and the output voltage sources of the parallel units can be expressed only by fundamental ones.…”

Section: Har2mentioning

confidence: 99%

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Circulating Current Reduction Strategy for Parallel-Connected Inverters Based IPT Systems

Liwen

Lin

et al. 2017

Energies

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Multiple inverters connected in parallel is a promising method to upgrade the power capacity of inductive power transfer (IPT) systems. Due to a slight unbalance of the control signals, the inner resistances of the inverters and other uncertainties, circulating currents exist among the parallel units which reduce the reliability of IPT systems. Firstly, the series-parallel resonant tank is employed in the multiple inverters based IPT system to eliminate the DC and harmonic circulating currents. The fundamental circulating currents in the paralleled inverter units are analyzed in detail. Then, for eliminating the fundamental circulating currents, a current decomposition method and a control diagram are proposed to avoid acquiring the phase of the current by detecting zero cross current point which increases the accuracy of the control algorithm. Finally, a 1-kW parallel-connected inverter IPT system is provided to verify the proposed approach. The experimental results show that the proposed method is effective for eliminating the fundamental circulating currents. The maximum efficiency of the system is up to 92.18% which is 0.53% higher compared to that without the current phasor control (91.65%).

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Section: Principle Description Of the Parallel-connected Inverter Topmentioning

confidence: 99%

Section: Har2mentioning

confidence: 99%

Section: Har2mentioning

confidence: 99%

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Circulating Current Reduction Strategy for Parallel-Connected Inverters Based IPT Systems

Liwen

Lin

et al. 2017

Energies

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“…High frequency alternating current (HFAC) systems are widely applied for induction heating [1], aerospace [2], vehicles [3], microgrids [4] [5], power distribution systems [6]- [8], telecommunication [9], computer power supplies [9] and medium/high voltage gate driving systems [10] owing to their merits of simple transforming structure, low cost and low component count, and effective ground noise isolation [10].…”

Section: Introductionmentioning

confidence: 99%

High frequency inverter topologies integrated with the coupled inductor bridge arm

Hu¹,

Ji²,

Finney

et al. 2016

IET Power Electronics

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-A new topology of the high frequency AC (HFAC) inverter bridge arm is proposed which comprises a coupled inductor, a switching device and an active clamp circuit. Based on it, new single-phase and three-phase inverters are proposed and their operating states are analyzed along with the traditional H-bridge inverter.Multi-phase and multi-level isolated inverters are also developed using the HFAC bridge arm. Furthermore, based on the proposed HFAC, a frond-end DC-DC converter is also developed for photovoltaic (PV) systems to demonstrate the application of the proposed HFAC converter. Simulation and experimental results from prototype converters are carried out to validate the proposed topologies which can be utilized widely in high frequency power conversion applications such as induction heating and wireless power transfer.

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“…Resonant inverters are connected to a High-Frequency AC (HFAC) bus, where power is delivered to different locations for points-of-use power management. HFAC power distribution systems have been widely investigated and used for applications such as personal computers, space stations, aerospace and telecommunications [10].…”

Section: Introductionmentioning

confidence: 99%

A Novel Bi-directional Series Parallel Resonant Converter for Power Factor Correction

Sivachidambaranathan¹,

Dash²

2012

IJCA

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Resonant converters are very attractive in practice because they have high efficiency, small size, light weight, fast dynamic response, low component stresses and low noise. One of the relatively new resonant DC-DC converters is a Series-Parallel Resonant Converter (SPRC) also called an LCC converter. Under constant frequency, the filter designs are simplified and utilization of magnetic components is improved. The LCC-SPRC takes on the desirable characteristics of the pure series and the pure parallel converter, thus removing the main disadvantages. The use of soft-switching techniques alleviates switching loss problems and allows a significant increase in the converter switching frequency. In the present work Bi-directional Series Parallel Resonant Converter are designed and the simulation results are presented.

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A Robust One-Cycle Controlled Full-Bridge Series-Parallel Resonant Inverter for a High-Frequency AC (HFAC) Distribution System

Cited by 47 publications

References 30 publications

Circulating Current Reduction Strategy for Parallel-Connected Inverters Based IPT Systems

Circulating Current Reduction Strategy for Parallel-Connected Inverters Based IPT Systems

High frequency inverter topologies integrated with the coupled inductor bridge arm

A Novel Bi-directional Series Parallel Resonant Converter for Power Factor Correction

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