计及风电成本的电力系统动态经济调度

发布时间：2019-03-24 17:34

【摘要】：随着风电技术的快速发展,大规模风电场接入给传统的电力系统经济调度带来了新的问题和挑战。目前大部分含风电场的动态经济调度研究都未计及风电不确定性带来的成本。为此,提出一种计及风电随机、波动性的风电场发电成本模型,并将其引入到传统的电力系统动态经济调度模型中。首先引入冲激函数概念,考虑尾流效应后将风速的概率分布转化为风电场有功出力的概率解析模型;在此基础上,从系统旋转备用调度和地区环境效益角度出发推导出风电的成本函数,并以目标函数方式引入到传统的动态经济调度模型中。应用一种新颖的布谷鸟搜索算法对所提模型进行求解。最后,以经典10机系统为算例进行仿真研究,结果验证了所提模型及算法的正确性和有效性。
[Abstract]:With the rapid development of wind power technology, large-scale wind farm access brings new problems and challenges to the traditional power system economic dispatching. At present, the cost of wind power uncertainty has not been taken into account in most of the dynamic economic dispatching studies with wind farms. Therefore, a wind farm generation cost model considering random and fluctuating wind power is proposed and introduced into the traditional dynamic economic dispatching model of power system. Firstly, the concept of impulse function is introduced and the probability distribution of wind speed is transformed into a probability analytical model of active power output of wind farm after considering wake effect. On this basis, the cost function of wind power is derived from the angle of system rotating standby dispatching and regional environmental benefit, and the cost function is introduced into the traditional dynamic economic dispatching model by means of objective function. A novel cuckoo search algorithm is applied to solve the proposed model. Finally, the simulation results of the classical 10-machine system show that the proposed model and algorithm are correct and effective.
【作者单位】：电力系统国家重点实验室深圳研究室(清华大学深圳研究生院);清华大学电机系;中国电力科学研究院;
【基金】：国家重点基础研究发展计划项目(2013CB228203) 深圳市战略性新兴产业发展专项基金(ZDSY20120619141142918)~~
【分类号】：TM734

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