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工程科学与技术:2014,46(5):133-138
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基于网损迭代的含风电机组日内安全经济调度滚动修正模型
(四川大学 电气信息学院)
Intra-daySecurity-constraintEconomicDispatchRolling RevisionModel Basedon theNetworkLossIterationwithWindGenerator
(SchoolofElectricalEng.andInfo.,SichuanUniv.)
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投稿时间:2013-10-10    修订日期:2014-09-10
中文摘要: 随着风电并网容量的逐渐增大,其自身的随机性和波动性给电网带来了较大的消纳难度和安全性问题,同时在调度模型中网损的忽略可能导致机组发电出力不足。针对上述问题,建立了基于网损迭代的日内经济调度滚动修正模型。滚动调度修正过程根据最新预测信息,并结合之前时段制定的调度计划进行相应调整。网损迭代过程考虑网损分布,然后进行经济调度,每次迭代过程进行交流潮流计算、支路潮流安全性校核,并更新系统网损。此外,针对调度阶段不收敛和支路潮流越限情况,制定了松弛机组出力限值和添加附加约束的调节策略。最后,通过算例仿真验证了提出的模型的有效性和正确性。
Abstract:The wind’s randomness and volatility bring great difficulty to the wind accommodation and grid security with the gradually increasing wind power, and network loss’s negligence in the dispatch model may lead generating power shortage. Based on these issues the intra-day economic dispatch rolling revision model based on the net loss iteration was established. The rolling revision model regulated the scheduling power according to the latest forecast information. The network losses was considered in the loss iterative process, then the economic dispatch process was done. The AC power flow was calculated and the line flow security was checked in each iteration. Afterwards, the system losses were updated.Moreover, the regulation strategy based on the relaxation unit power limitation and adding additional constraint was built to solve non-convergence the in the dispatch process and line overload problem. Finally, a numerical example simulation verified the effectiveness and correctness of the proposed model.
文章编号:201301238     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(51207098);四川大学青年教师科研启动基金资助项目(2010SCU11004)
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引用文本:
高红均,刘俊勇,魏震波,李丹,黄山.基于网损迭代的含风电机组日内安全经济调度滚动修正模型[J].工程科学与技术,2014,46(5):133-138.
Gao Hongjun,Liu Junyong,Wei Zhenbo,Li Dan,Huang Shan.Intra-daySecurity-constraintEconomicDispatchRolling RevisionModel Basedon theNetworkLossIterationwithWindGenerator[J].Advanced Engineering Sciences,2014,46(5):133-138.