IPAC2011 - List of Authors (Yan, H.B.)

Paper	Title	Page
THPO005	A Dipole Power Supply Based on Multi-lever Inverter Technique	3343
	Y.X. Chen, D.Q. Gao, Y.Z. Huang, R.K. Wang, H.B. Yan IMP, Lanzhou, People's Republic of China
	By applying multi-lever inverter technique to ion accelerator power supply, it can provide steady current in wide range, increase the power supply’s equivalent output frequency, then further promote power supply’s response capability and reduce the output ripple current. This article firstly by giving a detailed introduction of composite and basic working process of dipole power supply which also applied the technique mentioned above, interpret the working principle of multi-lever inverter, and illustrate its advantages. However, applying this technique will make controller more complicated, which need to be overcome by digital regulator technique. And meanwhile digital regulator technique can improve the power supply's performance. The second part of this article briefly introduces the overall scheme of digital regulator. And at last, this article illustrate the dipole power supply meet to design target and make some improvement by using the practical results to prove that applying multi-level inverter technique into accelerator power supply is practicable and beneficial.

THPO006	A Digital Power Supply Control Model in Heavy-ion Accelerator based on Dual Nios Cores	3346
	R.K. Wang, Y.X. Chen, D.Q. Gao, Y.Z. Huang, H.B. Yan, H.H. Yan, Z.Z. Zhou IMP, Lanzhou, People's Republic of China R.K. Wang Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
	According to the features of digital power supply and the requirements of pulse mode,this paper introduces a Digital Power Supply Control Mode(DPSCM) in Heavy-Ion Accelerator based on dual Nios cores,which meets the requirements of two basic running modes. The new method develops a system on-chip based on dual Nios cores by using SOPC technology in the Altera EP2C70 FPGA. Compared with traditional DPSCM,the dual Nios cores run simultaneously and cooperate well. As a result,the efficiency of the system is remarkably improved. Further,cores in parallel can realize reference waveforms switch in pulse mode effectively. We choose a 1150A/185V power supply as test bench. The Experimental result indicates that the system can realize the function of pulse mode,and the stability and tracking error meet the design requirements.

Paper

Title

Page

A Dipole Power Supply Based on Multi-lever Inverter Technique

3343

Y.X. Chen, D.Q. Gao, Y.Z. Huang, R.K. Wang, H.B. Yan
IMP, Lanzhou, People's Republic of China

By applying multi-lever inverter technique to ion accelerator power supply, it can provide steady current in wide range, increase the power supply’s equivalent output frequency, then further promote power supply’s response capability and reduce the output ripple current. This article firstly by giving a detailed introduction of composite and basic working process of dipole power supply which also applied the technique mentioned above, interpret the working principle of multi-lever inverter, and illustrate its advantages. However, applying this technique will make controller more complicated, which need to be overcome by digital regulator technique. And meanwhile digital regulator technique can improve the power supply's performance. The second part of this article briefly introduces the overall scheme of digital regulator. And at last, this article illustrate the dipole power supply meet to design target and make some improvement by using the practical results to prove that applying multi-level inverter technique into accelerator power supply is practicable and beneficial.

THPO006

A Digital Power Supply Control Model in Heavy-ion Accelerator based on Dual Nios Cores

3346

R.K. Wang, Y.X. Chen, D.Q. Gao, Y.Z. Huang, H.B. Yan, H.H. Yan, Z.Z. Zhou
IMP, Lanzhou, People's Republic of China
R.K. Wang
Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China

According to the features of digital power supply and the requirements of pulse mode,this paper introduces a Digital Power Supply Control Mode(DPSCM) in Heavy-Ion Accelerator based on dual Nios cores,which meets the requirements of two basic running modes. The new method develops a system on-chip based on dual Nios cores by using SOPC technology in the Altera EP2C70 FPGA. Compared with traditional DPSCM,the dual Nios cores run simultaneously and cooperate well. As a result,the efficiency of the system is remarkably improved. Further,cores in parallel can realize reference waveforms switch in pulse mode effectively. We choose a 1150A/185V power supply as test bench. The Experimental result indicates that the system can realize the function of pulse mode,and the stability and tracking error meet the design requirements.