用一种新的控制方案提高单端变换器驱动WV2H的功率控制和传输效率

Ryosuke Ishii, H. Omori, M. Tsuno, T. Morizane, Hidehito Matayoshi
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引用次数: 1

摘要

本文提出了一种基于符合国际标准SAE J2954的电源电压和谐振参数修改方法的V2H系统。通常用于V2H的双向WPT系统由一个桥式转换器组成,这使得设备更大,更昂贵。结果,该系统变得更大,成本更高。在本研究中,无线电V2H由单个开关转换器组成,以减小系统的尺寸和成本。早期的研究有两个问题。首先,发射功率仅随电路参数的变化而显著变化。因此,该操作对电路参数变化的鲁棒性较差。其次,发射功率变化区域不够,传输频率没有保持在国际标准允许的频带内。为了解决这些问题,我们提出了一种使用由电源电压和谐振参数变化控制的双向单端转换器的无线V2H方案。系统鲁棒性增强,在恒频下,通过电压变换器可以实现从零到6kw的最大功率输出。实验验证了该系统的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Improvement of Power Control and Transfer Efficiency in a Single-Ended Converter Driven WV2H by a new Control Scheme
In this paper, we propose a V2H system based on a power supply voltage and resonance parameter modification method that conforms to the international standard SAE J2954. Usual two-way WPT systems for V2H consist of a bridge converter, which makes the apparatus larger and more expensive. As a result, the system has become larger and more costly. In this study, the radio V2H is composed of a single switch converter to reduce the size and cost of the system. There were two problems in the early studies. First, the transmit power varied significantly by only few % variation of circuit parameters. Thus, the operation is less robust for circuit parameter variation. Next, the transmit power changing region is not sufficient, since the transfer frequency is not kept in the allowable frequency band of the international standard. To solve these problems, we propose a wireless V2H using a bi-directional single-ended converter controlled by a power supply voltage and a resonance parameter change scheme. The system robustness become strong, and the transfer power can be changed from zero to a maximum power output of 6 kW under constant frequency by using a voltage changer. The proposed system is validated by experiments.
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