摘要
同风电一样,太阳能光伏发电的随机性与间歇性增加了系统运行备用风险评估的复杂性和不确定性。针对这一问题,文中综合考虑了导致入射太阳辐照度出现随机性的主要因素,基于蒙特卡洛方法建立了模拟逐时太阳辐照度的模型和光伏发电系统的能量转换模型。之后,以对该模型进行大量仿真获得的结果为基础,获取典型季节和时段的光伏功率短时转移概率模型,并以之作为适用于PJM法的容量模型,对加入光伏后的系统短时运行备用风险进行了评估。评估结果显示了并网光伏系统在不同季节和时间段内对系统规律运行时的容量效益贡献。
Like wind power generation, the randomness and intermittency of solar photovoltaic （PV） power generation increases the complexity and uncertainty of the system operating reserve assessment. The main factors causing the randomness of the solar irradiance are taken into consideration to establish the energy conversion model of solar PV. Simulations are conducted based on this model, and instantaneous transition probability of power output from PV in typical season and period of time is investigated. Finally, operating reserve of a reliability test system integrated with solar PV is evaluated through the extended PJM method. The assessment results show the capacity contribution of grid-connected solar PV in different seasons and time intervals in a regular way.
出处
《电力系统自动化》
EI
CSCD
北大核心
2013年第5期55-60,共6页
Automation of Electric Power Systems
关键词
光伏发电系统
运行备用
PJM方法
峰荷承载能力
马尔可夫链
可靠性
photovoltaic generation system
operating reserve
PJM method
peak load carrying ability
Markov chain
reliability
