An Efficient Light Load Operation with Faster Transient Response of Very High Frequency Resonant Boost Converter
An Efficient Light Load Operation with Faster Transient Response of Very High Frequency Resonant Boost Converter
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发表时间：
2016-04
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通讯作者：
Chitranshi Mishra;Deeksha Singh;Sangeetha;Snow Saraswat
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作者：
Chitranshi Mishra;Deeksha Singh;Sangeetha;Snow Saraswat
在现有多种逆变器的基础上，提出了一种控制VHF谐振升压型DC-DC转换器的方法。虽然Φ类逆变器在文献中有很好的记载，但这是一种新的版本，并且还耦合到谐振整流器。任何谐振升压拓扑设计的两个方面都是具有低器件电压应力和在宽负载范围内具有高效率。更高的开关频率允许更小尺寸的无源元件，允许使用空芯磁铁，从而减少铁心损耗。输出由MPPT控制器调节。该转换器在额定输入和输出电压下实现了高于87%的效率，并且在满负载的5%范围内保持了良好的效率。适用于VHF操作的谐振栅极驱动方案，可提供快速启动和低损耗操作。这两个转换器都使用更高的带宽、开关滞后控制来调节输出，从而实现快速的瞬时响应和高效的轻载操作。在MATLAB/SIMULINK平台上进行了性能分析，给出了系统的性能特性和元器件的数值。E类逆变器；Φ类逆变器；谐波峰值；谐振升压转换器；谐振式DC-DC转换器；谐振整流器；最大功率点跟踪控制器；零电压开关拓扑。
With many versions of inverters available, a control of VHF resonant boost dc-dc converter is described in this paper. Though, a Class- Φ inverter is well documented in the literature, this is a new version and also coupled to resonant rectifier. The twin aspect of any design of resonant boost topology is to feature low device voltage stress and to have high efficiency over wide range of loads. Increased switching frequency allows smaller passive components of small size, allowing one to use air-core magnetic, and thereby reducing core loss. The output is regulated by the MPPT controller. The converter achieves higher than 87% efficiency at nominal input and output voltages, and maintains a good efficiency down to 5%of full load. Resonant gate drive schemes suitable for VHF operation that provides rapid start-up and low-loss operations. Both the converters regulate the output using higher bandwidth, ON–OFF hysteretic control, that enable fast transient response and efficient light-load operation. The performance analysis was carried out on the MATLAB/Simulink platform and performance characteristics are presented along with the values of components. Keywords Class-E inverter; class-Φ inverter; harmonic peaking; resonant boost converter; resonant dc–dc converter; resonant rectifier; a MPPT controller; Zero-Voltage-Switching topology (ZVS).