一种智能配电网安全运行控制方法
发布时间：2018-08-02 15:38
【摘要】：分布式电源(DGs)高渗透率接入,将改变配电网结构及潮流分布,需要对传统电压与负载率的控制方法进行改进。本文通过分析分布式电源接入后对配电网电压及负载率的影响,提出了一种基于灵敏度分析的多阶段决策的节点电压与线路负载率实时控制方法,有机融合了调节分布式电源出力、调节无功补偿装置、网络重构以及切负荷等控制手段,各阶段根据指标函数值判断是否执行。以改进IEEE 33节点系统作为算例,仿真一天内负荷及分布式电源出力的变化,对于节点电压与线路负载率越过限值时刻给出相应的控制措施,结果验证了本文方法的正确性。
[Abstract]:The distribution network structure and power flow distribution will be changed by (DGs) high permeability access of distributed generation, so the traditional control method of voltage and load rate should be improved. By analyzing the influence of distributed power supply on distribution network voltage and load rate, this paper presents a real-time control method of node voltage and line load rate based on sensitivity analysis. It combines the control means of adjusting the output of distributed power, adjusting the reactive power compensation device, reconstructing the network and cutting the load, and judging whether to carry out according to the index function value in each stage. Taking the improved IEEE 33-bus system as an example, this paper simulates the variation of load and distributed power generation in one day, and gives the corresponding control measures for the node voltage and line load rate over the limit time. The results verify the correctness of the proposed method.
【作者单位】： 湖南大学电气与信息工程学院;江西省电力科学研究院;广东电网公司;
【基金】：国家863计划资助项目(2011AA05A114)
【分类号】：TM732
[Abstract]:The distribution network structure and power flow distribution will be changed by (DGs) high permeability access of distributed generation, so the traditional control method of voltage and load rate should be improved. By analyzing the influence of distributed power supply on distribution network voltage and load rate, this paper presents a real-time control method of node voltage and line load rate based on sensitivity analysis. It combines the control means of adjusting the output of distributed power, adjusting the reactive power compensation device, reconstructing the network and cutting the load, and judging whether to carry out according to the index function value in each stage. Taking the improved IEEE 33-bus system as an example, this paper simulates the variation of load and distributed power generation in one day, and gives the corresponding control measures for the node voltage and line load rate over the limit time. The results verify the correctness of the proposed method.
【作者单位】： 湖南大学电气与信息工程学院;江西省电力科学研究院;广东电网公司;
【基金】：国家863计划资助项目(2011AA05A114)
【分类号】：TM732
【参考文献】
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