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	Disturbance Observer based Controller Design to Reduce Sensor Count in Standalone PVDG Systems
	Korukonda, Meher Preetam; Garg, Man Mohan; Hussain, Amir; Behera, Laxmidhar
通讯作者	Korukonda, MP (corresponding author), IIT Kanpur, Elect Engn, Kanpur 208016, Uttar Pradesh, India.
会议名称	46th Annual Conference of the IEEE-Industrial-Electronics-Society (IECON)
会议日期	OCT 19-21, 2020
会议地点	ELECTR NETWORK
英文摘要	Standalone photovoltaic distributed generation (PVDG) systems have found their way into many popular offgrid applications like deserts, military and rural development. Generation of power at the consumption site and supplying power in DC make these systems more efficient due to minimization of losses during transmission and conversion. But, these systems suffer from lower inertia and this factor added with uncertainties in power generation and load consumption, greatly affects system stability. Nonlinear control techniques like backstepping although effective, are expensive to implement since they are model-based and demand information from many sophisticated sensors. In this paper, a disturbance observer based on back-stepping control strategy is proposed for grid voltage control and MPPT of an isolated PVDG system with storage consisting of PV array, battery and load. The effects of irradiation and temperature on PV arrays, the variations in loads and battery voltage are modeled in the form of disturbances. Instead of measuring these entities with sensors, the update laws designed in this paper based on Lyapunov stability theory estimate their values which are further utilized for effective control during intermittencies. It can be seen from the MATLAB simulation results that adoption of this technique contributes towards faster and cheaper control of the PVDG system for a greater range of operating conditions.
英文关键词	Disturbance estimation Backstepping Lyapunov sensorless standalone PV
来源出版物	IECON 2020: THE 46TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
ISSN	1553-572X
出版年	2020
页码	2975-2980
ISBN	978-1-7281-5414-5
出版者	IEEE
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000637323702153
WOS关键词	ENERGY-STORAGE ; GENERATORS
WOS类目	Automation & Control Systems ; Computer Science, Information Systems ; Computer Science, Theory & Methods ; Green & Sustainable Science & Technology ; Energy & Fuels ; Engineering, Manufacturing ; Engineering, Electrical & Electronic ; Robotics
WOS研究方向	Automation & Control Systems ; Computer Science ; Science & Technology - Other Topics ; Energy & Fuels ; Engineering ; Robotics
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353128
作者单位	[Korukonda, Meher Preetam; Behera, Laxmidhar] IIT Kanpur, Elect Engn, Kanpur 208016, Uttar Pradesh, India; [Garg, Man Mohan] MNIT Jaipur, Elect Engn, Jaipur 302017, Rajasthan, India; [Hussain, Amir] Univ Houston, Elect & Comp Engn, Houston, TX 77004 USA
推荐引用方式 GB/T 7714	Korukonda, Meher Preetam,Garg, Man Mohan,Hussain, Amir,et al. Disturbance Observer based Controller Design to Reduce Sensor Count in Standalone PVDG Systems[C]:IEEE,2020:2975-2980.