ICALEPCS2011 - List of Authors (Li, C.)

Paper

Title

Page

Application of Integral-Separated PID Algorithm in Orbit Feedback

171

K. Xuan, X. Bao, C. Li, W. Li, G. Liu, J.G. Wang, L. Wang
USTC/NSRL, Hefei, Anhui, People's Republic of China

The algorithm in the feedback system has important influence on the performance of the beam orbit. PID algorithm is widely used in the orbit feedback system; however the deficiency of PID algorithm is big overshooting in strong perturbations. In order to overcome the deficiencies, Integral Separated PID algorithm is developed. When the closed orbit distortion is too large, it cancels integration action until the closed orbit distortions are lower than the threshold value. The implementation of Integral Separated PID algorithm with MATLAB is described in this paper. The simulation results show that this algorithm can improve the control precision.

Poster MOPKS006 [0.091 MB]

MOPMS004

First Experience with VMware Servers at HLS

323

G. Liu, X. Bao, C. Li, J.G. Wang, K. Xuan
USTC/NSRL, Hefei, Anhui, People's Republic of China

Hefei Light Source(HLS) is a dedicated second generation VUV light source, which was designed and constructed two decades ago. In order to improve the performance of HLS, especially getting higher brilliance and increasing the number of straight sections, an upgrade project is undergoing, accordingly the new control system is under construction. VMware vSphere 4 Enterprise Plus is used to construct the server system for HLS control system. Four DELL PowerEdge R710 rack servers and one DELL Equallogic PS6000E iSCSI SAN comprises the hardware platform. Some kinds of servers, such as file server, web server, database server, NIS servers etc. together with the softIOC applications are all integrated into this virtualization platform. The prototype of softIOC is setup and its performance is also given in this paper. High availability and flexibility are achieved with low cost.

Poster MOPMS004 [0.463 MB]

Paper	Title	Page
MOPKS006	Application of Integral-Separated PID Algorithm in Orbit Feedback	171
	K. Xuan, X. Bao, C. Li, W. Li, G. Liu, J.G. Wang, L. Wang USTC/NSRL, Hefei, Anhui, People's Republic of China
	The algorithm in the feedback system has important influence on the performance of the beam orbit. PID algorithm is widely used in the orbit feedback system; however the deficiency of PID algorithm is big overshooting in strong perturbations. In order to overcome the deficiencies, Integral Separated PID algorithm is developed. When the closed orbit distortion is too large, it cancels integration action until the closed orbit distortions are lower than the threshold value. The implementation of Integral Separated PID algorithm with MATLAB is described in this paper. The simulation results show that this algorithm can improve the control precision.
	Poster MOPKS006 [0.091 MB]

MOPMS004	First Experience with VMware Servers at HLS	323
	G. Liu, X. Bao, C. Li, J.G. Wang, K. Xuan USTC/NSRL, Hefei, Anhui, People's Republic of China
	Hefei Light Source(HLS) is a dedicated second generation VUV light source, which was designed and constructed two decades ago. In order to improve the performance of HLS, especially getting higher brilliance and increasing the number of straight sections, an upgrade project is undergoing, accordingly the new control system is under construction. VMware vSphere 4 Enterprise Plus is used to construct the server system for HLS control system. Four DELL PowerEdge R710 rack servers and one DELL Equallogic PS6000E iSCSI SAN comprises the hardware platform. Some kinds of servers, such as file server, web server, database server, NIS servers etc. together with the softIOC applications are all integrated into this virtualization platform. The prototype of softIOC is setup and its performance is also given in this paper. High availability and flexibility are achieved with low cost.
	Poster MOPMS004 [0.463 MB]