Research on a Small-Sized, Light-Weight, Safe, Popularized Photovoltaic Power Generation System Feasible for Installation in a Sense of Awning

我们对可与太阳能电池板相结合的小型、轻型功率调节器进行了基础研究，旨在开发和推广易于获得、安全、小型、重量轻、价格低廉、可在阳光意义上安装的光伏发电系统。利用功率MOSFET制作了功率调节器的核心谐振型变流器的基本电路样机。找到了在变流器输出电压控制下结合脉宽控制和频率控制实现软开关(零电压开关)运行的条件。仿真结果表明，如果变流器不具备双向功率变换能力，则在小输出交流滤波的情况下，变流器的输出电流波形会发生严重的失真。考虑几十khz到几mhz损耗的变压器和线圈的设计方法导则及降低损耗…的方法获得了更多的SE。给出了谐振线圈和变压器统一的指导思想。为了考察光伏发电系统在特定条件下的运行特性，设计了一种模拟光伏发电系统运行特性的模拟电路。因此，将其与太阳能模型相结合来模拟太阳能功率的变化，将有可能评估光伏发电系统的性能，如最大功率跟随控制等。将太阳能电池与小型轻型功率调节器相结合的整个系统的试制和实验仍然是未来的问题，因为我们花了大量的时间来研究改善谐振型变流器的输出电流波形。这一研究被认为是重要的，因为它为光伏发电系统中使用的隔离式功率调节器的尺寸和重量的减小提供了指导，并为实现方便易用的遮阳篷意义上的光伏发电系统开辟了一条道路。较少

We have made a basic research on a small-sized, light-weight power conditioner possible to unify with solar battery panel, aiming at development and popularization of easily available, safe, small-sized, light- weight, inexpensive photovoltaic generation systems feasible for installation in a sense of awning.1. A basic circuit of resonant-type converter, which is heart of the power conditioner, was prototyped using power MOSFETs. Conditions for the soft-switching (zero voltage switching) operation under the output voltage control of the converter conbining the pulse width control and frequency control were found.2. It was clarified by simulations that the output current waveform of the converter was distorted considerably in the case co small output AC filter if the converter had no ability of bidirectional power conversion.3. Guidelines on the design method of the transformer and coils considering their losses within several tens kHz to several MHz and he reduction method of their los … More ses were obtained. A guideline to unify the resonant coils and transformer was also obtained.4. In order to examine the operatioal characteristics of the photovoltaic generation systems under the specific conditions, a simulation circuit to simulate the characteristics was prototyped. As a result, combining it with a solar model to simulate the variation of the solar power, it will be possible to evaluate the performance of the photovoltaic generation system such as the maximum power following control, etc..5. The trial production and experiments of whole system combining the solar battery with the small-sized light-weight power conditioner remain as future problems because we have spent a lot of time on research on improvement of the output current waveform of the resonant-type converter.This research is considered important because it has given a guideline to reduction of size and weight of the isolation-type power conditioner used in the photovoltaic generation system and has opened a way to realization of the easily available photovoltaic generation systems in a sense of awning. Less