Microwave power control strategies on the drying process I. Development and evaluation of new microwave drying system
Microwave power control strategies on the drying process I. Development and evaluation of new microwave drying system
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DOI：
10.1016/j.jfoodeng.2005.05.006
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发表时间：
2006-09-01
影响因子：
5.5
通讯作者：
Wang, N
中科院分区：
文献类型：
--
作者：
Cheng, WM;Raghavan, GSV;Wang, N
研制了一种相控功率调节器，并与现有国产微波炉原有的循环控制功率调节器串联。对微波炉进行了进一步的改进，使微波和对流干燥相结合。对系统进行了性能评估，包括校准最大微波输出功率，确定腔内微波分布，建立相控功率调节器输出功率与输入电压的关系。结果表明，相位控制功率调节器可以成功地用于准连续（快速开关）功率调节，并使功率效率最大化。记录了输出微波功率的衰减，并验证了腔内微波场的非均匀分布。(c) 2005 Elsevier Ltd版权所有。
A phase-controlled electrical power regulator was developed and connected in series with the original cycle-controlled power regulator of an existing domestic microwave oven. The microwave oven was further modified such that combined microwave and convectional drying can be accommodated. The system performance was evaluated which included calibration of the maximum microwave output power, determination of the microwave distribution in the cavity, establishment of the relations between the output power and the input voltage for the phase-controlled power regulator. It was observed that phase-controlled power regulator could be successfully used for quasi-continuous (fast-switching) power regulation with the maximization of power efficiency. The degradation of output microwave power was recorded and the non-uniform distribution of microwave field in the cavity was also verified. (c) 2005 Elsevier Ltd. All rights reserved.