A fixed-frequency LCC-type resonant converter with inductive output filter using a modified gating scheme

Bhowmick, S.; Bhat, A.K.S.

doi:10.1109/icaect.2014.6757077

Cited by 7 publications

(2 citation statements)

References 21 publications

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“…There are several resonant topologies described in the literature [12][13][14][15] that use LCC resonant tanks, i.e., LLC resonant converter [16], soft switching technology [17] and a secondary-side resonant converter [18]. But the series-parallel resonant converter (PRC-LCC) with an inductive output filter is especially well suited for the type of application considered in this paper [19].…”

Section: Power Stagementioning

confidence: 99%

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A Digitally Controlled Power Converter for an Electrostatic Precipitator

et al. 2017

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Electrostatic precipitators (ESPs) are devices used in industry to eliminate polluting particles in gases. In order to supply them, an interface must be included between the three-phase main line and the required high DC voltage of tens of kilovolts. This paper describes an 80-kW power supply for such an application. Its structure is based on the series parallel resonant converter with a capacitor as output filter (PRC-LCC), which can adequately cope with the parasitic elements of the step-up transformer involved. The physical implementation of the prototype includes the use of silicon carbide-SiC-semiconductors, which provide better switching capabilities than their traditional silicon-Si-counterparts. As a result, a new control strategy results as a better alternative in which the resonant current is maintained in phase with the first harmonic of the inverter voltage. Although this operation mode imposes hard switching in one of the inverter legs, it minimizes the reactive energy that circulates through the resonant tank, the resonant current amplitude itself and the switching losses. Overall efficiency of the converter benefits from this. These ideas are supported mathematically using the steady state and dynamic models of the topology. They are confirmed with experimental measurements that include waveforms, Bode plots and thermal behavior. The experimental setup delivers 80 kW with an estimated efficiency of 98%.

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Section: Power Stagementioning

confidence: 99%

“…Its differential gain is 31.25 × 10 −6 and it presents a high-frequency pole at 4 kHz to eliminate noise. The regulator, C(z), introduces a proportional integral action, PI, (15). The pole at the origin guarantees the absence of a position error.…”

Section: Small Signal Modelmentioning

confidence: 99%

A Digitally Controlled Power Converter for an Electrostatic Precipitator

et al. 2017

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Unified Boundary Control With Phase Shift Compensation for Dual Bridge Series Resonant DC-DC Converter

Guo

Zhou

2020

IEEE Access

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In this paper, the triple-phase-shift (TPS) control with certain unified boundary conditions is applied to a dual-bridge series resonant converter (DBSRC) for applications needing bidirectional energy flow ability. The control strategy is unified for the whole variation range of load, input/output voltage and with simple calculation. By using this unified boundary control, the circulating energy is minimized significantly. A wide soft switching operation range can be achieved as well. Furthermore, based on the analysis results of unified boundary conditions, an improved unified boundary control with duty cycle compensation is also proposed. The ZVS operations of all sides switches can be maintained for wide converter gain and load with high efficiency. The procedure of design for important parameters is given. Finally all works are verified through actual experimental tests on a 500W laboratory prototypes successfully.

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Quasi-fixed Frequency and Phase Modulation Synchronous Control Based LCC Resonant Converter

Kong

Feng

2019

2019 Chinese Automation Congress (CAC)

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A fixed-frequency LCC-type resonant converter with inductive output filter using a modified gating scheme

Cited by 7 publications

References 21 publications

A Digitally Controlled Power Converter for an Electrostatic Precipitator

A Digitally Controlled Power Converter for an Electrostatic Precipitator

Unified Boundary Control With Phase Shift Compensation for Dual Bridge Series Resonant DC-DC Converter

Quasi-fixed Frequency and Phase Modulation Synchronous Control Based LCC Resonant Converter

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