| 用陆地卫星图象观测胶州湾的副振动 |
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| 引用本文： | 平仲良. 用陆地卫星图象观测胶州湾的副振动[J]. 青岛大学学报(自然科学版), 1997, 10(1): 59-64 |
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| 作者姓名： | 平仲良 |
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| 作者单位： | 青岛大学环科系 |
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| 摘 要： | 从ＴＭ６图象识别胶州湾海表温度的波状特征．从ＴＭ３和ＴＭ６图象识别胶州湾的副振动．提出副振动是湾外传入的潮汐引起的．建立了副振动的数学模型．计算了副振动的周期和波长．从ＴＭ３和ＴＭ６图象解译了副振动的振动中心、节线和波腹．讨论了胶州湾副振动对泥沙运动的影响
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| 关 键 词： | 副振动；胶州湾；波长；周期 |
OBSERVING THE WAVE IN JIAOZHOU BAY ON LANDSAT IMAGE |
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| Ping Zhongliang. OBSERVING THE WAVE IN JIAOZHOU BAY ON LANDSAT IMAGE[J]. Journal of Qingdao University(Natural Science Edition), 1997, 10(1): 59-64 |
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| Authors: | Ping Zhongliang |
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| Abstract: | In order to overcome the shortcomings of conventional excitation controller, this paper introduces the theory of direct feedback linearization to design nonlinear excitation controllor for generators. The theory surmounts the difficulties in excitation controller design caused by the nonlinearity of power systems and makes the linearization process more straightforward than the wellknown differential geometric method. Furthermore, the nonlinear excitation controller designed above was improved to achieve decentralized control and to make it easy realize in engineering. |
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| Keywords: | direct feedback linearization nonlinear control excitation system power system stabilityKeywords seiche Jiaozhou bay circle wavelength |
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