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多光伏发电直流网及其控制策略 被引量:13
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作者 袁建华 高厚磊 高峰 《电力自动化设备》 EI CSCD 北大核心 2011年第11期8-12,共5页
提出一种多光伏发电直流网拓扑结构,系统包含多光伏电池、蓄电池、直流母线以及功率因数校正、双向直流变换等电路。光伏电池因地制宜分布式配置,并通过直流变换器连接到低压直流分支母线,直流变换器依据分支母线电压变化情况,实时调节... 提出一种多光伏发电直流网拓扑结构,系统包含多光伏电池、蓄电池、直流母线以及功率因数校正、双向直流变换等电路。光伏电池因地制宜分布式配置,并通过直流变换器连接到低压直流分支母线,直流变换器依据分支母线电压变化情况,实时调节光伏电池输出功率以满足负载用电及确保分支母线电压稳定;高压主母线通过双向直流变换器连接各供电单元以及蓄电池,双向直流变换器通过主母线实时调节各分支母线电能分配,当整体发电还有剩余时为蓄电池充电,而出现功率需求缺额时由蓄电池放电补充。依据能量平衡原理,对系统母线电压进行控制。为提高供电可靠性,光伏发电系统通过功率因数校正电路与公共电网单向联系。Matlab环境下系统模型仿真证明了所提控制方法的正确性与可行性。 展开更多
关键词 发电系统 电池 多光伏发电 直流网 母线 能量平衡 直流变换器
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Potentialities of Renewable Energy in Victoria, Australia
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作者 Vinayagam Arangarajan Aman Moung Than Oo G M Shafiullah Alex Stojcevski 《Journal of Energy and Power Engineering》 2014年第6期990-1001,共12页
In utility power system, electricity demand is being covered largely by fossil fueled power generation, which contributes high level of GHG (greenhouse gas) emission and causes global warming worldwide. In order to ... In utility power system, electricity demand is being covered largely by fossil fueled power generation, which contributes high level of GHG (greenhouse gas) emission and causes global warming worldwide. In order to reduce GHG emission level, most of the countries in the world targeting towards green energy that is power generation from RE (renewable energy) sources. In this paper, it is considered to study prospects of RE sources in particular, solar and wind in Victoria State which are abundant as compared to other sources of renewable. The wind and solar energy feasibility study and sensitivity analysis has been done for Victoria with the aid of HOMER (hybrid optimization model of electric renewable) simulation software. From the study, it has clearly evicted that wind energy combinational HPS (hybrid power system) has more contribution, and high potential than solar PV (photovoltaic) systems for a particular location. This study also investigates the influences of energy storage in the proposed HPS. 展开更多
关键词 Renewable energy hybrid power system economic analysis environmental analysis.
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