基于机会约束的含多风电场动态经济调度

发布时间：2018-01-06 07:11

本文关键词：基于机会约束的含多风电场动态经济调度　出处：《浙江大学学报(工学版)》2017年05期 　论文类型：期刊论文

【摘要】：为了解决风电出力的不确定性给电网安全运行带来的威胁,提出基于快速傅里叶变换(FFT)快速计算卷积化简机会约束规划的动态经济调度算法.针对多个风电场同时接入系统的复杂情况,在风电出力概率和负荷预测的基础上,保证正、负旋转备用能满足负荷和风电实际出力的波动,应用机会约束规划建立了考虑失负荷和弃风风险的含风电场电力系统动态经济调度模型;利用FFT快速计算卷积求取联合变量的概率分布以将机会约束转化为确定性约束简化得到确定性模型,并用CPLEX进行求解,该方法大大减少了算法的运算时间.以修改的10机39节点系统为算例验证了所提调度模型的正确性及化简方法的有效性.
[Abstract]:In order to solve the uncertainty of wind power generation to the security of power grid operation threats. This paper presents a dynamic economic scheduling algorithm based on Fast Fourier transform (FFT) to calculate convolution simplification opportunity constrained programming, aiming at the complex situation where multiple wind farms are connected to the system at the same time. On the basis of wind power output probability and load forecasting, it is guaranteed that positive and negative rotation reserve can meet the fluctuation of load and actual wind power output. The dynamic economic dispatching model of power system with wind farm is established by chance constrained programming considering the loss of load and the risk of wind abandonment. The probability distribution of the joint variables is calculated quickly by FFT to simplify the chance constraint into the deterministic constraint and the deterministic model is solved by CPLEX. The computational time of the algorithm is greatly reduced. The correctness of the proposed scheduling model and the effectiveness of the simplified method are verified by a modified 10-machine 39-bus system.
【作者单位】：浙江大学电气工程学院;
【分类号】：TM73
【正文快照】： 近年来,由于传统化石能源储量有限且会带来较大的污染,而风力发电具有无污染、零排放等特点,得到了世界各国的广泛关注.但风力发电具有较大的波动性和随机性,大规模的风电并网会对电网安全运行带来威胁.动态经济调度(dynamic economic dispatch,DED)是在已知机组启停状态基础

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