Intermittent wind generation in optimal power flow dispatching
Intermittent wind generation in optimal power flow dispatching
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DOI：
10.1049/iet-gtd:20080273
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发表时间：
2009
影响因子：
2.5
通讯作者：
R. Jabr;B. Pal
中科院分区：
文献类型：
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作者：
R. Jabr;B. Pal
提出了最优潮流调度方案中风力发电的随机模型。该模型包含了使用概率或相对频率直方图进行风电预测的误差。与确定性OPF相比，该模型考虑了(i)未使用所有可用风电的预期惩罚成本和（ii）由于风电短缺而调用备用电力的预期成本，同时允许风电和火电的协调。将随机模型集成到一个扩展的二次型OPF规划中，其中风力发电机表示为感应电机。给出了预测误差直方图由历史数据导出或由双峰正态分布估计的情况下的仿真结果。研究了误差分布偏度对最优调度策略的影响。
A stochastic model of wind generation in an optimal power flow (OPF) dispatching program is presented. The model includes the error in wind power forecasts using a probability or relative frequency histogram. Compared with the deterministic OPF, the proposed model allows the coordination of wind and thermal power while accounting for (i) the expected penalty cost for not using all available wind power and (ii) the expected cost of calling up power reserves because of wind power shortage. The stochastic model is integrated in an extended conic quadratic OPF program in which wind driven generators are represented as induction machines. Simulation results are presented for cases where the forecasting error histogram is either derived from historical data or estimated by a bimodal normal distribution. The effect of the skewness of the error distribution on the optimal dispatch policy is studied.