Evaluating the limits of solar photovoltaics (PV) in traditional electric power systems
Evaluating the limits of solar photovoltaics (PV) in traditional electric power systems
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DOI：
10.1016/j.enpol.2006.10.014
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发表时间：
2007-05-01
期刊：
影响因子：
9
通讯作者：
Margolis, Robert M.
中科院分区：
文献类型：
--
作者：
Denholm, Paul;Margolis, Robert M.
在这项工作中，我们研究了传统电力系统中大规模部署太阳能光伏（PV）的一些限制。具体来说，我们评估的能力，光伏提供了一个公用事业系统的能量的很大一部分（高达50%），通过比较每小时的输出模拟的大型光伏系统的实际可用的电量。模拟使用每小时记录的太阳能日照和负载数据在2000年的得克萨斯州，并考虑传统发电厂的限制，以减少输出和适应间歇性光伏发电。我们发现，在高渗透水平和现有的电网运行程序和规则下，该系统将在一年中的某些时期有多余的光伏发电。开发了几个指标来检查这种过剩的光伏发电以及由此产生的成本，作为不同系统灵活性水平下光伏渗透率的函数。当PV提供大约10-20%的系统能量时，基本负载发电机的有限灵活性产生越来越多的不可用的PV发电量。将在随访分析中讨论和量化增加PV渗透率超过该范围的措施。(c)2006爱思唯尔有限公司保留所有权利。
In this work, we examine some of the limits to large-scale deployment of solar photovoltaics (PV) in traditional electric power systems. Specifically, we evaluate the ability of PV to provide a large fraction (up to 50%) of a utility system's energy by comparing hourly output of a simulated large PV system to the amount of electricity actually usable. The simulations use hourly recorded solar insolation and load data for Texas in the year 2000 and consider the constraints of traditional electricity generation plants to reduce output and accommodate intermittent PV generation. We find that under high penetration levels and existing grid-operation procedures and rules, the system will have excess PV generation during certain periods of the year. Several metrics are developed to examine this excess PV generation and resulting costs as a function of PV penetration at different levels of system flexibility. The limited flexibility of base load generators produces increasingly large amounts of unusable PV generation when PV provides perhaps 10-20% of a system's energy. Measures to increase PV penetration beyond this range will be discussed and quantified in a follow-up analysis. (c) 2006 Elsevier Ltd. All rights reserved.