Bangbang controller design and implementation for EAST vertical instability control

doi:10.1016/j.fusengdes.2016.05.008

	Bangbang controller design and implementation for EAST vertical instability control
	Wang, Yuehang 1; Xiao, Bingjia1,2 ; Liu, Lei2 ; Yuan, Qiping2
	2016-11-15
发表期刊	FUSION ENGINEERING AND DESIGN
摘要	In the EAST 2014 campaign, a new internal coil (IC). power supply was used in order to enhance the control over the plasma's vertical instabilities. The IC power supply now allows for current and voltage working modes with much higher peak voltages and currents and faster response time. In comparison the previous power supply only allowed for the current mode. A Bangbang and PID composite controller has been designed for the voltage mode based on optimal control theory and the RZIP rigid plasma response model. This paper will demonstrate that faster and enhanced controllability are realized with the combination of Bangbang and PID controller. For the large z position drift, the Bangbang controller will export the maximum voltage to achieve much faster power supply response and slow the vertical displacement events (VDEs). The PID controller is used for the small z drifts which will finally stabilize the VDEs with minimum z position oscillation. Furthermore, to evaluate the time latency of this control system and power supply, the stability and performance of the closed loop were simulated and analysed. This controller was finally implementation and test on EAST using the Quasi-snowflake shape which achieved growth rates of 500 s(-1). This paper shows that the new power supply using the bangbang+ PID controller can significantly enhance the control over vertical instabilities. (C) 2016 Elsevier B.V. All rights reserved.
文章类型	Article
关键词	Vde Internal Active Coil Bangbang Control
WOS标题词	Science & Technology ; Technology
DOI	10.1016/j.fusengdes.2016.05.008
关键词[WOS]	FEEDBACK STABILIZATION ; AXISYMMETRICAL MODES ; TOKAMAK ; SATURATION ; PROGRESS
收录类别	SCI ; ISTP
语种	英语
WOS研究方向	Nuclear Science & Technology
WOS类目	Nuclear Science & Technology
WOS记录号	WOS:000387836800097
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/30779
专题	中科院等离子体物理研究所
作者单位	1.Univ Sci & Technol China, Hefei, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yuehang,Xiao, Bingjia,Liu, Lei,et al. Bangbang controller design and implementation for EAST vertical instability control[J]. FUSION ENGINEERING AND DESIGN,2016,112(无):692-698.
APA	Wang, Yuehang,Xiao, Bingjia,Liu, Lei,&Yuan, Qiping.(2016).Bangbang controller design and implementation for EAST vertical instability control.FUSION ENGINEERING AND DESIGN,112(无),692-698.
MLA	Wang, Yuehang,et al."Bangbang controller design and implementation for EAST vertical instability control".FUSION ENGINEERING AND DESIGN 112.无(2016):692-698.

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