核级输电网调度算法的设计与实现

发布时间：2018-02-26 22:27

本文关键词： 核电条件风险安全经济调度帝国竞争算法　出处：《电子科技大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着我国工业化的快速发展,核电作为发展较为成熟的清洁能源得到了广泛关注。目前,核电主要作为基荷运行。随着具备良好技术指标的第三代核电机组大量并网,核电已可逐步参与电网调度。但是,由于核电机组存在弱抗干扰性,当输电网电压、频率等参数发生严重波动时,可能引发电网安全事故。因此,针对核级输电网优化调度问题的研究具有理论价值和现实意义。本论文针对核电与输电网相互影响的安全问题,以发电总成本最小化为目标对优化调度算法开展了以下研究工作:通过分析第三代核电机组的运行特性,确定适于核电参与电网调度的日运行方式。从核电机组与电网之间的相互影响出发,同时为了保证电网在极端情况下的正常运行,基于条件风险方法,并结合负荷预测误差的不确定性,提出电压、频率安全约束,在此基础上构建了核级输电网的两阶段调度模型。在模型的求解上,针对帝国竞争算法同时求解启停和出力计划收敛精度低的问题,提出两步求解策略;针对帝国竞争算法处理大规模数据效率低的问题,通过引入聚类预筛选策略改进启停计划求解算法;针对帝国竞争算法易局部收敛的问题,通过改良同化方向向量及动态调整机组功率改进出力计划求解算法,并构造适应度函数。根据以上内容,提出了一种改进的核级输电网调度算法。利用IEEE 10机系统进行算法仿真,结果表明,本文算法在经济性和安全性两方面均优于传统调度算法。最后利用Java Web技术设计并开发核级输电网调度系统,完成了核级输电网调度算法的实现。
[Abstract]:With the rapid development of industrialization in China, nuclear power, as a relatively mature clean energy source, has received extensive attention. At present, nuclear power mainly operates as a basic charge. Nuclear power has been able to participate in power grid dispatching step by step. However, due to the existence of weak anti-interference of nuclear power units, when the voltage and frequency of transmission network fluctuate seriously, it may lead to power network safety accidents. It is of theoretical value and practical significance to study the optimal dispatching problem of nuclear transmission network. This paper aims at the safety problem of the interaction between nuclear power and transmission network. In order to minimize the total cost of power generation, the following research work has been done on the optimal scheduling algorithm: by analyzing the operation characteristics of the third generation nuclear power unit, In order to ensure the normal operation of the power network in extreme circumstances, the conditional risk method is used to determine the daily operation mode suitable for nuclear power plant to participate in the power grid dispatching, starting from the interaction between the nuclear power unit and the power network. Combined with the uncertainty of load forecasting error, the security constraints of voltage and frequency are proposed. Based on this, a two-stage dispatching model of nuclear transmission network is constructed. In order to solve the problem of low convergence precision of starting and stopping and outputting plan simultaneously, a two-step solution strategy is proposed, and the problem of low efficiency of large-scale data processing by imperial competition algorithm is also proposed. In order to solve the problem of easy local convergence of Imperial Competition algorithm, the algorithm of force out plan is improved by improving the assimilation direction vector and dynamically adjusting the power of generating unit, which is improved by introducing the clustering pre-screening strategy to solve the problem of easy local convergence of the imperial competition algorithm. According to the above contents, an improved algorithm for dispatching nuclear transmission network is proposed. The algorithm is simulated by using IEEE 10 computer system, and the results show that, The algorithm in this paper is superior to the traditional dispatching algorithm in economy and security. Finally, using Java Web technology to design and develop the nuclear level transmission network dispatching system, the realization of the nuclear level transmission network dispatching algorithm is completed.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM73

【相似文献】