机构

• 地理科学与资源研究所 [1]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [1]
• 期刊论文 [1]

发表日期

• 2023 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共2条，第1-2条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Differentiated discharge patterns, causes and prevention measures of rural non-point source pollution in the four economic regions of mainland China 期刊论文  OAI收割 JOURNAL OF RURAL STUDIES, 2023, 卷号: 98, 页码: 114-122 作者:  Wang, Yongsheng;  Cui, Xiao;  Zou, Lilin;  Wen, Qi   |  收藏  |  浏览/下载：20/0  |  提交时间：2023/04/06 Environmental protection  Non -point pollution discharge  Agricultural production  Agricultural pollution source  Controlling strategy   Nonlinear control design for system with mechanical resonance based on two tracking-differentiators (EI CONFERENCE) 会议论文  OAI收割 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010, August 4, 2010 - August 7, 2010, Xi'an, China 作者:  Li J.;  Li Y.;  Li Y.;  Li Y.;  Li Y. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 A nonlinear control strategy for controlling a motion system with mechanical resonance is presented in this paper. A mathematical model of the servo system is derived according to the parameters of an actual system. By using two Tracking-Differentiators  reference input and system output are tracked and their differential signals are given simultaneously. A nonlinear PD control law in velocity loop is designed based on non-smooth feedback. The simulation results show that the control law is superior remarkably in performance to linear PD control law and the classical PID control law. Tracking-Differentiator resolves the contradiction between rapidity and overshoot of system response. The nonlinear PD control law improves system dynamic performance and intensifies the ability of disturbance rejection. The control design achieved in this paper makes the servo system more robust. 2010 IEEE.