Research Article
Comprehensive Control Analysis of Dual DC-DC Output Converter for Integration of Offshore Wind Turbine Systems
Issue:
Volume 13, Issue 4, August 2024
Pages:
59-68
Received:
5 November 2024
Accepted:
18 November 2024
Published:
29 November 2024
Abstract: This paper presents an in-depth exploration of control state-space modeling tailored for high-power isolated dual output DC-DC (ISO-D2) converter, with a particular emphasis on elucidating system dynamics through the derivation of state-space matrices and transfer functions. Employing state-of-the-art analysis techniques, this study offers a systematic framework for comprehending the converter's behavior across varied operational scenarios. Through the derivation of state-space matrices encompassing state, input, and output parameters, the converter's dynamic response is encapsulated in a precise mathematical representation. Additionally, transfer functions are established to facilitate frequency domain analysis and stability evaluation. These derived models furnish invaluable insights into the performance characteristics of the converter, thus enabling the formulation of robust control strategies. Particularly, the derived state-space matrices and transfer functions serve as instrumental tools for the design of advanced control algorithms, crucial for optimizing the performance of high-power isolated dual output DC-DC (ISO-D2) converters, in real-world applications such as solar plants and offshore DC wind farms.
Abstract: This paper presents an in-depth exploration of control state-space modeling tailored for high-power isolated dual output DC-DC (ISO-D2) converter, with a particular emphasis on elucidating system dynamics through the derivation of state-space matrices and transfer functions. Employing state-of-the-art analysis techniques, this study offers a system...
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Research Article
Single-Switch Inverter Wireless Charger with Adaptive Constant Current and Constant Voltage Control by Transmitting Side Sensing Load Changes of Receiving Side
Issue:
Volume 13, Issue 4, August 2024
Pages:
69-82
Received:
24 November 2024
Accepted:
7 December 2024
Published:
25 December 2024
DOI:
10.11648/j.epes.20241304.12
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Abstract: Because of its excellent flexibility, security, reliability and convenience, wireless power transfer(WPT) has become a research hotspot at home and abroad. Currently available WPT technology has the broadest application prospects and can be used in consumer electronics, household appliances, medical equipment, electric vehicles and many other fields. In low-power wireless charging systems such as electric bicycles, volume and cost of the receiving side are required to be minimized. However, in traditional receiving side circuit, compensation network, sampling circuit and wireless communication circuit make it difficult to reduce the device size and limit further reduction of cost. Aiming at the above problems, a single-switch LC inverter S-S wireless charging circuit with adaptive constant current (CC) and constant voltage (CV) control by transmitting side sensing load changes of receiving side is proposed. In this paper, load-independent CC and CV characteristics and relationship between auxiliary coil voltage and load voltage are derived. The simplest equivalent model of the proposed circuit is developed, the expression for equivalent input voltage is derived, and the constraints of zero-voltage switching (ZVS) are analyzed. Based on the constraint, an iterative method of variable duty cycle is proposed, which can accurately find the duty cycle range in which the ZVS can be realized as well as the peak resonant current in this range, which provides a reference for parametric design of single-switching circuit. Finally, a 5A/54.6V experimental prototype is built to verify the correctness of the proposed theory.
Abstract: Because of its excellent flexibility, security, reliability and convenience, wireless power transfer(WPT) has become a research hotspot at home and abroad. Currently available WPT technology has the broadest application prospects and can be used in consumer electronics, household appliances, medical equipment, electric vehicles and many other field...
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,
Rahman Shahpasand
