| Summary: | 碩士 === 國立臺北科技大學 === 電機工程系研究所 === 99 === To find an optimal operational point which can maximize wind energy output from the small wind turbine and provide favorable condition for batteries and loads, the research falls into two categories: the performance of the wind turbine generator and the parameters monitoring in both small wind turbines and wind electric systems. Since the wind power output relies on variable parameters, i.e. wind speed, the characteristic of turbines and the performance of the generator, we need more detailed information to make sure wind turbine working properly before to connect into the grid system. For this purpose, we include both smart grid system and the micro grid system in parallel with the small wind electric system, it not only establishes precise parameters but also collects information from the small wind electric system, to ensure enough wind energy to operate the wind turbine generator at a stable condition. On micro grid system, we use a lead-acid car battery as a power storage media to connect the small wind electric system. In order to get the correct performance of our 3kW synchronous wind generator, we set up a test platform to observe the voltage and current variations in both of different loads and different rotational speeds. Furthermore, in order to get the detailed information from the nature wind, we use the microchip which is processing unit of smart grid system to collect and compute the data from the measurement devices. The calculation results will be delivered to the remote host, therefore the operator can utilize these information to control and adjust the wind turbine system. With this data we finally establish a small wind electric system’s fuzzy archives which use fuzzy control method to find the optimal operation point. At this operation point, the wind power output can be maximized in various wind speeds, and the suitable condition for batteries and loads also can be reached.
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