含风力发电的市级电网区域可再生能源规划方案确定及重要因素影响研究Determination of Regional Renewable Energy Planning Scheme for Urban Power Grid Containing Wind Farm and Its Important Impacting Factors
吉平;武守远;周孝信;
摘要(Abstract):
以CO2减排目标为主要约束条件,以经济性最优为目标函数,以可再生能源混合优化模型为平台,提出了某市级区域电网基于风资源的可再生能源规划方案,从上级电网购电价格、风电成本、电煤价格、向电网送电量等影响能源规划的因素入手进行灵敏度分析,给出了有实际参考价值的分析结论。研究表明,当风电成本与火电成本可相比拟时,在CO2减排约束下,若不考虑向上级电网输送电量,引入风力发电可以有效减少污染物排放量和燃料消耗,提高的风电比例会随风机数量的增加逐渐达到饱和,电力生产成本会随风机的过度装设而迅速增长。对于设定的CO2减排目标,在安装风机数量适当大于满足减排目标所需的最小风机数量,在区域电网不加装储能装置的条件下,上级电网购电价格以及煤炭价格的升高会直接导致区域电网电力供应经济性的迅速恶化,而向上级电网售电能够有效降低区域电网的电力生产成本,且大电网对区域电网外送风电的消纳能力越强,区域电网的电力生产成本就能降得越低。
关键词(KeyWords): 能源规划;可再生电力混合优化模型;CO2减排
基金项目(Foundation):
作者(Author): 吉平;武守远;周孝信;
Email:
DOI: 10.13335/j.1000-3673.pst.2013.02.004
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