低碳背景下山东电网最优降损策略及评估方法

发布时间：2018-06-12 04:13

本文选题：电力系统 + 节能　；参考：《电力系统自动化》2014年17期

【摘要】：面对温室气体排放所造成的环境恶化和能源危机,以节能低碳为主题的各项研究获得广泛关注,网络损耗在电网节能低碳环节中具有举足轻重的地位和作用,故从规划角度提出电网降损评估的新方法和思路。首先提出广义的节点无功需求的概念,以潮流模型为基础,在待分析节点加载虚拟无功源,以系统网络损耗最小为目标,以电压可控节点的电压幅值为决策量,利用粒子群优化方法与潮流计算组合成混合算法,求解典型潮流断面下各个节点最佳的无功注入量,以此评估节点无功需求。以山东电网2013年典型运行方式实际数据为依托,分析目标网架最佳的无功补偿规划方案,计算与比较山东电网典型运行方式相对于最佳无功补偿方式的节能降损空间,并将降损量等效转换为碳排放量,显现降损工作的低碳效益,为建设低碳电网为目标的规划方案的制定提供参考依据。所提出的理论算法已在实际工程和科研项目中获得应用,并取得了较为理想的应用效果。
[Abstract]:In the face of the environmental degradation and energy crisis caused by greenhouse gas emissions, the research on energy saving and low carbon has received extensive attention, and network loss plays an important role in the energy saving and low carbon link of power grid. Therefore, a new method and train of thought for power loss reduction evaluation is put forward from the point of view of planning. Firstly, the concept of generalized node reactive power requirement is proposed. Based on the power flow model, the virtual reactive power source is loaded at the node to be analyzed, the minimum network loss is taken as the goal, and the voltage amplitude of the voltage controllable node is taken as the decision quantity. Particle swarm optimization (PSO) combined with power flow calculation is used to solve the optimal reactive power injection rate of each node in a typical power flow section, so as to evaluate the reactive power demand of the nodes. Based on the actual data of the typical operation mode of Shandong power grid in 2013, the optimal reactive power compensation planning scheme of the target grid is analyzed, and the energy saving and loss reduction space of the typical operation mode of Shandong power network is calculated and compared with the optimal reactive power compensation mode. The loss reduction is equivalent to the carbon emission, which shows the low carbon benefit of the loss reduction, and provides the reference for the establishment of the plan for the construction of low carbon power network. The proposed theoretical algorithm has been applied in practical engineering and scientific research projects, and has achieved a more ideal application effect.
【作者单位】：国网山东省电力公司经济技术研究院;国网山东省电力公司;
【分类号】：TM714.3

【参考文献】