含新能源电力系统机会约束经济调度的二阶锥规划方法

发布时间：2017-12-27 13:21

本文关键词：含新能源电力系统机会约束经济调度的二阶锥规划方法　出处：《电力系统保护与控制》2015年22期 　论文类型：期刊论文

【摘要】：考虑到新能源发电的随机性、反调峰性和预测困难等问题,提出了一种适用含新能源接入的电力系统的机会约束经济调度(Chance Constrained Economic Dispatch,CCED)二阶锥规划方法。该方法首先将新能源发电出力预测结果与真实值的偏差作为随机变量,计及系统运行限制的概率约束条件,建立以发电成本期望值最小为目标的电力系统CCED模型。然后根据其约束条件的特点,构建CCED问题的二阶锥规划描述,将原概率约束优化问题转化为确定性的非线性优化问题,采用现代内点算法加以求解,其求解过程仅需进行一次非线性规划问题的求解。通过IEEE-30系统的计算结果,验证了所提模型与方法的有效性和可行性,同时也表明该方法在保持较高计算精度的同时,也具有较高的计算效率。
[Abstract]:Considering the randomness, anti peak shaving and prediction difficulties of new energy generation, this paper proposes a Chance Constrained Economic Dispatch (CCED) two level cone programming method for power system with new energy access. First, the deviation between the prediction result and the real value of the new energy generation is taken as a random variable, and the probability constraints of the system operation constraints are taken into account. A CCED model of the power system with minimum expected cost of power generation is established. Then according to the characteristics of the constraints, the description of the two order cone programming to construct the CCED problem, the original probability constrained optimization problem into a nonlinear deterministic optimization problem, using modern interior point algorithm to solve the problem solving process is only a solution of nonlinear programming problems. The effectiveness and feasibility of the proposed model and method are verified through the calculation results of IEEE-30 system. Meanwhile, it is also shown that the method maintains high computation accuracy and high computational efficiency.
【作者单位】：广西大学电气工程学院;广西电网电力科学研究院;
【基金】：广西青年基金资助项目(2014GXNSFBA118277) 南宁市科学研究与科技开发计划项目(20121025)~~
【分类号】：TM73
【正文快照】： This work is supported by Guangxi Youth Fund(No.2014GXNSFBA118277)and Science and TechnologyDevelopment of Nanning(No.20121025).0引言新能源发电是指诸如风力发电、太阳能发电等一类清洁、无污染、可再生的能源发电技术。随着我国能源多元化与清洁化战略的持续推进,

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