独立光伏发电系统统一能量控制策略

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (560 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The stand-alone photovoltaic (PV) systems depend on batteries or adjustable load to keep the balance of generated power and load. The control modes of PV generation transit among maximum power point tracking (MPPT), voltage regulating or current limiting modes using the traditional energy management system. This paper proposes a unified energy control strategy for stand-alone PV system to control PV generation, charging and discharging of battery, consumption as a whole according to the inherent theory of energy balance and DC bus voltage variation. The proposed strategy optimizes rear-end load power including battery by regulating dc bus voltage. And then it controls PV generation following load variation smoothly without using the traditional transition of control modes. Meanwhile, under the unified energy control strategy, an optimal searching method of PV working point is presented to avoid dc conversion failure. Matlab simulations show the performance of proposed control method with captured results presented for viewing.

Key words： PV generation DC bus unified control power energy optimal

Received: 01 November 2010 Published: 07 March 2014

PACS:

TM615

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Yuan Jianhua
	Gao Feng
	Gao Houlei
	Liu Bo
	Ji xiaoqing
	Wang yunbo

Cite this article:

Yuan Jianhua,Gao Feng,Gao Houlei等. Unified Energy Control Strategy of Stand-Alone Photovoltaic System[J]. Transactions of China Electrotechnical Society, 2011, 26(1增): 248-253.

URL:

http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I1增/248

[1] Coppez G, Chowdhury S, Chowdhury S P. The importance of energy storage in renewable power generation: a review[C]. Universities Power Engineering Conference, New Zealand, 2010: 1-5.
[2] Shayani R A, Oliveira, M A G. Global performance measurement of a stand-alone photovoltaic system[C]. Transmission and Distribution Conference and Exposition, Latin America, 2006: 1-6.
[3] 张超, 何湘宁. 非对称模糊PID控制在光伏发电MPPT中的应用[J]. 电工技术学报, 2005, 20(10): 72-75.
[4] 傅诚, 陈鸣, 沈玉樑, 等. 基于输出参数的光伏电池最大功率点控制[J]. 电工技术学报, 2007, 22(2): 148-152.
[5] 杨水涛, 张帆, 丁新平, 等. 基于输入—输出参数的光伏电池最大功率控制的比较[J]. 电工技术学报, 2009, 24(6): 95-102.
[6] 任柱, 陈渊睿, 张淼. 独立光伏系统中蓄电池充电控制策略[J]. 控制理论与应用, 2008, 25(2): 361-363.
[7] Weichen L, Yuzhen Z, Wuhua L, et al. A smart and simple PV charger for portable applications[C]. Applied Power Electronics Conference and Exposition, America, 2010: 2080-2084.
[8] 吴理博, 赵争鸣, 刘建政, 等. 独立光伏照明系统中的能量管理控制[J]. 中国电机工程学报, 2005, 25(22): 68-72.
[9] 廖志凌, 阮新波. 一种独立光伏发电系统双向变换器的控制策略[J]. 电工技术学报, 2008, 23(1): 97-103.
[10] Thammasiriroj W, Nuchkrua T, Ruayariyasub S. Sliding mode control for stabilizing DC-link of DC-DC converter in photovoltaic systems[C]. Power Electronics for Distributed Generation Systems, Hefei, 2010: 347-351.
[11] Villalva M, Gazoli J, Filho E. Comprehensive approach to modeling and simulation of photovoltaic arrays[J]. Transactions on Power Electronics, 2009, 24(5): 1198-1208.
[12] Saiju R, Heier S. Performance analysis of lead acid battery model for hybrid power system[C]. Transmission and Distribution Conference and Exposition, America, 2008: 1-6.