含分布式电源的6kV配电网潮流的计算与分析
发布时间：2019-06-12 05:56
【摘要】：随着传统的集中式发电带来的诸多问题,如:输电线路长,线路损耗大,电压跌落,污染环境,向偏远地区或农村供电困难等,分布式电源的出现能有效弥补这些缺陷。分布式发电技术可以将能源系统小型化和微型化,帮助用户结合自身实际进行相应的调整,以使能源供给系统能够充分满足其需求,也提高了能源用户积极参与这项提高能源效率、减少环境污染的能源改革事业之中。但是分布式电源并入配电网后,会对配电网的产生影响。通过介绍光伏、风能、燃料电池和微型燃气轮机发电系统的模型与发电原理,对分布式电源并网节点类型进行的相应处理,有利于对电力系统的运行方式进行分析与研究。分布式电源并入配电网后,传统的潮流算法需要进行优化来满足电网结构的变化。分析几种常见的传统潮流算法的原理,如高斯赛德尔法、牛顿拉夫逊法、P-Q分解法和前推回代法。并对其进行分析比较,并根据配电网的特点来选择较为理想的潮流计算方法,即采用快速分解法计算含分布式电源的6kV配电网潮流,快速分解法是基于P-Q分解法的一种潮流计算方法。在含分布式电源的6kV配电网中,发现该电网存在小负荷支路系统,快速分解法已不满足使用条件,潮流计算的收敛性变差,甚至发散。因此需要对快速分解法进行改进,即采用改进快速分解法。通过采用IEEE30节点进行算例分析,并用Matlab语言编制改进快速分解法的迭代程序,随后再用程序测试结果来体现改进快速分解具有较强的实用性。
[Abstract]:With many problems caused by traditional centralized power generation, such as long transmission line, large line loss, voltage drop, pollution environment, difficult power supply to remote areas or rural areas, the emergence of distributed power supply can effectively make up for these defects. Distributed power generation technology can miniaturize and miniaturize the energy system, help users to adjust according to their own reality, so that the energy supply system can fully meet their needs, and also improve the active participation of energy users in the cause of energy reform to improve energy efficiency and reduce environmental pollution. However, when the distributed power supply is integrated into the distribution network, it will have an impact on the distribution network. By introducing the model and generation principle of photovoltaic, wind energy, fuel cell and micro gas turbine power generation system, the corresponding treatment of distributed power supply grid-connected node types is beneficial to the analysis and research of the operation mode of power system. After the distributed power supply is integrated into the distribution network, the traditional power flow algorithm needs to be optimized to meet the changes of the power grid structure. The principles of several common traditional power flow algorithms, such as Gao Si Sedell method, Newton Raphson method, P 鈮，
本文编号：2497793
[Abstract]:With many problems caused by traditional centralized power generation, such as long transmission line, large line loss, voltage drop, pollution environment, difficult power supply to remote areas or rural areas, the emergence of distributed power supply can effectively make up for these defects. Distributed power generation technology can miniaturize and miniaturize the energy system, help users to adjust according to their own reality, so that the energy supply system can fully meet their needs, and also improve the active participation of energy users in the cause of energy reform to improve energy efficiency and reduce environmental pollution. However, when the distributed power supply is integrated into the distribution network, it will have an impact on the distribution network. By introducing the model and generation principle of photovoltaic, wind energy, fuel cell and micro gas turbine power generation system, the corresponding treatment of distributed power supply grid-connected node types is beneficial to the analysis and research of the operation mode of power system. After the distributed power supply is integrated into the distribution network, the traditional power flow algorithm needs to be optimized to meet the changes of the power grid structure. The principles of several common traditional power flow algorithms, such as Gao Si Sedell method, Newton Raphson method, P 鈮，
本文编号：2497793
本文链接：https://www.wllwen.com/kejilunwen/dianlidianqilunwen/2497793.html
