基于数据驱动算法的主动配电网 资源协同技术研究

Research on resource coordination technology of active distribution Network based on data Driven algorithm

  • 摘要: 针对主动配电网运行中面临的分布式发电、负荷波动等带来的不确定特性,进一步深化配电数据资源开发利用和价值挖掘,提出数据驱动框架来定义配电网络的主动控制方法。首先基于时间序列电压、负荷数据,生成各节点的时序抽样函数,并配置各类电网元件,建立拓扑关系。在此基础上结合多维度运行指标约束,以常规调峰负荷最小、多时段电压波动满足要求为目标函数,建立含分布式发电的主动配电网多时段电压动态优化模型,结合混合整数规划方法简化优化模型,使得优化问题转化为线性模型,通过高斯塞德尔方法进行迭代求解,获取优化方案,促进配电网分布式发电的有效消纳及配电网安全、稳定运行。在改进的 IEEE33 节点算例上对模型与控制方法的有效性进行验证,考察电压调节算法与电力系统消纳能力的动态匹配。分析证明:所提出的数据驱动算法能有效提高新能源利用率,对配电网经济性具有较好的支撑作用。

     

    Abstract: In view of the uncertainty caused by distributed generation and load fluctuation in the operation of active distribution network, the development and utilization of distribution data resources and value mining are further deepened, and a data-driven framework is proposed to define the active control method of distribution network. Firstly, based on the time series voltage and load data, the time series sampling function of each node is generated, and various grid components are configured to establish the topological relationship. On this basis, combined with multi-dimensional operation index constraints, the multi period voltage dynamic optimization model of active distribution network with distributed generation is established with the objective function of minimizing conventional peak load and meeting the requirements of multi period voltage fluctuation. At the same time, the mixed integer second-order cone programming method is combined to simplify the optimization model, so that the optimization problem is transformed into a linear model, and the Gauss Seidel method is used for iterative solution to obtain the optimization scheme, so as to promote the effective consumption of distributed generation in distribution network and the safe and stable operation of distribution network. The effectiveness of the model and control method is verified on the improved ieee33 node example, and the dynamic matching between the voltage regulation algorithm and the consumption capacity of the power system is investigated. The analysis shows that the proposed data-driven algorithm can effectively improve the utilization rate of new energy, and has a good supporting effect on the economy of distribution network.

     

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