Design Considerations for Current-Regulated Series-Resonant Converters With a Constant Input Current

Wang, Hongjie; Saha, Tarak; Riar, Baljit; Zane, Regan

doi:10.1109/tpel.2018.2819887

Cited by 24 publications

(7 citation statements)

References 28 publications

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“…Meanwhile, the rms load current (I Rr ) is reduced. These observations are consistent with equations ( 12), (15), and (34) and the rms current plot in Fig. 8, as the tank input impedance Z i reduces to a small value at f o .…”

Section: (A)supporting

confidence: 90%

“…This presents a strong opportunity for an improved high-frequency DEH solution using load resonant converters. Resonant converters have been implemented in various highfrequency applications such as wireless power transfer [10]- [12], LED drivers [13], underwater power distribution [14], [15], etc. due to their soft-switching capability and high efficiency.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and Evaluation of a High Current Gain Resonant Inverter for Subsea Electrical Heating

Ray¹,

Rajashekara

2022

IEEE Trans. on Ind. Applicat.

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Direct electrical heating (DEH) is a well-established method for preventing hydrate formation inside subsea oil transfer pipelines. However, poor efficiency and high reactive power requirement of the existing line-frequency DEH systems have necessitated high-frequency power processing along with reactive power compensation. To meet these design objectives, a dc-ac converter using an LCCL resonant tank is presented in this paper to function as a high-frequency alternating current source. The LCCL resonant tank is tuned at the frequency of the peak tank current gain to maximize the heat generation and reduce the VA rating of the tank. The peak current gain operation also ensures zero voltage switching (ZVS) of the bridge inverter devices. Detailed frequency domain analysis and design guidelines are presented for the proposed LCCL resonant inverter (RI). Experimental results on a 10 A laboratory prototype and hardware-in-the-loop results for a 350 A system illustrate the advantages of the LCCL RI in DEH application.

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Section: (A)supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Design and Evaluation of a High Current Gain Resonant Inverter for Subsea Electrical Heating

Ray¹,

Rajashekara

2022

IEEE Trans. on Ind. Applicat.

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“…To carry out an analysis of current source inverters, the method of the first harmonic analysis (FHA) is usually applied [5][6][7][8][9][10] and in applications related to electrotechnology, where the loads are part of resonant circuits with a sufficiently good quality factor, a satisfactory accuracy is achieved, compared to the exact analysis methods that account for the influence of all harmonics. In this aspect, the existing methodologies for the design of current source inverters based on the analysis of the first harmonic method give very good results and use relatively simple calculation procedures.…”

Section: Introductionmentioning

confidence: 99%

A Unified Approach to the Analysis of DC/AC Converters, Based on the Study of Electromagnetic Processes in a Series RLC Circuit

Hinov

2023

Electronics

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This paper presents a unified approach to the analysis of DC/AC converters based on an equivalent representation of their AC circuit as a series RLC circuit. The resonant DC/AC converter with reverse diodes was chosen as the basis of the examination, and the obtained ratios for this device were used to derive the main ratios describing the operation of the other types of DC/AC converters—voltage source inverters (VSI) and current source inverters (CSI). Based on the commonality of electromagnetic processes in power circuits, the expressions for the current through the inductance and the voltage of the capacitor are found in a compact form with their initial phases. The base ratios found through the analysis are normalized to the control frequency, thereby summarizing all possible operating modes. In this way, electromagnetic processes in a whole class of power electronic devices are described from general positions, which is convenient from a methodical point of view with a view to improving power electronics education. The proposed analysis approach is also applicable to three-phase DC/AC inverters, taking into account the specifics related to the presence of three phases and, accordingly, their mutual influence in the formation of the output currents and voltages. On the other hand, the basic ratios determined through the application of the unified analysis approach are also useful with a view to creating engineering design methodologies, in which the values of all circuit elements are determined with comparatively simplified calculation procedures.

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“…A CSRL converter controls the current type characteristic load better than a VSRL converter, but current input equipment is not common. A VSRL converter is used if the current output is constant [22,23]. Generated converters, isolated constructors, and a non-planar circuit can be converted using the duality approach [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

A two‐phase non‐inverting buck‐boost converter for an RL load

Liao

Chen

2021

The Journal of Engineering

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There is an increase in renewable energy sources, which are regarded as current sources, where DC-DC converters are widely used which require more suitable loads for driving current type loads. This paper uses a duality approach to show that the converter circuit can apply to the current type loads without too much voltage variation. It illustrates the derived steps for a conventional buck converter by using graph formation. To validate the duality approach, five original switching converters are detailed. A current source with an R-L load (CSRL) converter is used for current-based applications, such as electrical motors, electromagnetic relays, or light-emitting diodes (LEDs). This study proposes a two-phase non-inverting buck-boost converter with an R-L load which is suitable for driving currentbased applications. The design procedure and steady-state analysis are presented. SIM-PLISTM software is used to simulate the topologies. This method for operation mode and formula derivation is like in voltage type circuit structures, and this study has sufficient mathematical analysis capabilities. For demonstration, a 650 W VSRL converter is implemented to verify the feasibility of the method. The corresponding circuit topology of the conventional circuit can be illustrated by using the duality approach rapidly.

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Design Considerations for Current-Regulated Series-Resonant Converters With a Constant Input Current

Cited by 24 publications

References 28 publications

Design and Evaluation of a High Current Gain Resonant Inverter for Subsea Electrical Heating

Design and Evaluation of a High Current Gain Resonant Inverter for Subsea Electrical Heating

A Unified Approach to the Analysis of DC/AC Converters, Based on the Study of Electromagnetic Processes in a Series RLC Circuit

A two‐phase non‐inverting buck‐boost converter for an RL load

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