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In this paper, the method of irradiance on horizon change to irradiance on PV array is analyzed. The two PV systems which in same latitude but different irradiance resource and irradiance ingredients are simulated in order to got the optimal tilt of PV array. the tilt of PV array should chosen from 0° to local latitude. In direct irradiance abundant region, the tilt should be increased. In diffuse...
Collaborative optimization (CO), a decomposition-based multidisciplinary design optimization (MDO) method, is generally used in aeronautical systems. However, the subsystems optimizations of CO method are nested into system optimization of it in the execution process, numerous subsystem analyses are required to achieve consistency for entire system. For this problem, a nonnested collaborative optimization...
A new type LVRT test device, basing on power electronics technology, has been developed. Compared with traditional reactor VGS, this device overcomes many drawbacks, such as bulky size, difficult to control precision, and difficult to continuously testing. Considering the characteristics of distributed system accessing to the grid by photovoltaic power station, the designed testing platform has the...
Using the high fidelity model in the multidisciplinary design optimization (MDO) application is becoming more and more popular, but it brings complex coupling relationship and huge computing intensity, which need efforts to be well organized to reduce the computation time. In this paper, a parallel computing environment distributed in local area network (LAN) was established based on the collaborative...
A novel method is proposed for the normal black (NB) TFT-LCD white point adjustment. The method provides an easy way to adjust the white point by LCD gamma voltage re-setting when the LCD color filter and backlight are fixed design. An example is given to explain the method in details. The example results show that we can obtain bluish white point chromaticity coordinate deviation by slightly optimizing...
In this paper, a novel approach for RCS feature extraction using imaging processing is proposed firstly. We take the frequency-angle RCS data sets normalized for every observation angle as intensity images with 256 gray levels, and find that different targets have different textures. This implicates that the particular textures of each image can be used to recognize the corresponding targets. Here,...
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