Power flow analysis is a numerical way of study of behavior of flow of electric power in an interconnected system. In order to meet the growing demands of electrical energy in an optimum way, there is a need to upgrad...Power flow analysis is a numerical way of study of behavior of flow of electric power in an interconnected system. In order to meet the growing demands of electrical energy in an optimum way, there is a need to upgrade existing systems or to install new systems. Therefore, planning of new installations and determination of best operating conditions of existing systems need power flow analysis. In this way, cost/benefit ratio for both suppliers and customers is maintained. This research involves the design and power flow analysis of IEEE-14 bus system. Newton Raphson method is applied for better efficiency and reduced computational time. Simulation analysis is conducted in ETAP software because of its excessive used in real life systems.展开更多
Hybrid power supply system consists of a number of independent and different sources of electrical energy with different operating times during different seasons and with energy storage system. Deployment of a hybrid ...Hybrid power supply system consists of a number of independent and different sources of electrical energy with different operating times during different seasons and with energy storage system. Deployment of a hybrid power system is expected in places outside the normal distribution network. For the further research and improvements it is necessary to know in detail the power flow from various sources to the load or to storage battery depending on different seasons. The paper presents data analysis results computed by application developed for detailed analysis of power flows within hybrid power system. Developed application analyses the data from the monitoring system. Data has been acquired and recorded within last year. This data is visualized as power flows in the individual hybrid power system circuits. Together with electrical power the effectiveness and performance parameters of rectifier and DC/AC converter are evaluated. The paper describes achieved results and needs for further improvements of such solution.展开更多
电力系统分析综合程序PSASP(power system analysis software package)和PowerFactory是目前广泛采用的电力系统分析软件,也是重庆大学电气工程学院"电力系统稳态分析"课程的实验教学工具软件。然而学生在实验中发现,对于同...电力系统分析综合程序PSASP(power system analysis software package)和PowerFactory是目前广泛采用的电力系统分析软件,也是重庆大学电气工程学院"电力系统稳态分析"课程的实验教学工具软件。然而学生在实验中发现,对于同一算例,两个软件的潮流计算结果并不一致。分析表明,结果不一致的原因在于两个软件所用变压器模型存在差异。为此,本文从变压器参数计算方法、对励磁支路的处理等方面,对PSASP和PowerFactory的双绕组/三绕组变压器模型进行对比分析,并提出使两个软件潮流结果差异尽可能小的参数及控制选项设置方法。本文用两个简单算例验证了对比分析结果的有效性。展开更多
电力系统分析综合程序 PSASP( Power System Analysis Software Package)是国内进行电力系统计算和仿真经常使用的软件 ,其结果也为大家所普遍接受。 Mathworks公司新近推出的MATLAB5.2中的 Power System Blockset( PSB)是专门为电力系...电力系统分析综合程序 PSASP( Power System Analysis Software Package)是国内进行电力系统计算和仿真经常使用的软件 ,其结果也为大家所普遍接受。 Mathworks公司新近推出的MATLAB5.2中的 Power System Blockset( PSB)是专门为电力系统设计的仿真分析软件 ,其功能十分强大。文中对 3个电力系统典型模型的潮流和稳定分别进行了计算 ,分析表明这两种电力系统仿真软件得到的结果几乎完全相同 ,但也存在一定的差异 ,对其原因给出了初步的解释 ,并介绍了应用 MATLAB进行电力系统仿真时经常用到的一些方法。展开更多
文摘Power flow analysis is a numerical way of study of behavior of flow of electric power in an interconnected system. In order to meet the growing demands of electrical energy in an optimum way, there is a need to upgrade existing systems or to install new systems. Therefore, planning of new installations and determination of best operating conditions of existing systems need power flow analysis. In this way, cost/benefit ratio for both suppliers and customers is maintained. This research involves the design and power flow analysis of IEEE-14 bus system. Newton Raphson method is applied for better efficiency and reduced computational time. Simulation analysis is conducted in ETAP software because of its excessive used in real life systems.
文摘Hybrid power supply system consists of a number of independent and different sources of electrical energy with different operating times during different seasons and with energy storage system. Deployment of a hybrid power system is expected in places outside the normal distribution network. For the further research and improvements it is necessary to know in detail the power flow from various sources to the load or to storage battery depending on different seasons. The paper presents data analysis results computed by application developed for detailed analysis of power flows within hybrid power system. Developed application analyses the data from the monitoring system. Data has been acquired and recorded within last year. This data is visualized as power flows in the individual hybrid power system circuits. Together with electrical power the effectiveness and performance parameters of rectifier and DC/AC converter are evaluated. The paper describes achieved results and needs for further improvements of such solution.
文摘电力系统分析综合程序PSASP(power system analysis software package)和PowerFactory是目前广泛采用的电力系统分析软件,也是重庆大学电气工程学院"电力系统稳态分析"课程的实验教学工具软件。然而学生在实验中发现,对于同一算例,两个软件的潮流计算结果并不一致。分析表明,结果不一致的原因在于两个软件所用变压器模型存在差异。为此,本文从变压器参数计算方法、对励磁支路的处理等方面,对PSASP和PowerFactory的双绕组/三绕组变压器模型进行对比分析,并提出使两个软件潮流结果差异尽可能小的参数及控制选项设置方法。本文用两个简单算例验证了对比分析结果的有效性。
文摘电力系统分析综合程序 PSASP( Power System Analysis Software Package)是国内进行电力系统计算和仿真经常使用的软件 ,其结果也为大家所普遍接受。 Mathworks公司新近推出的MATLAB5.2中的 Power System Blockset( PSB)是专门为电力系统设计的仿真分析软件 ,其功能十分强大。文中对 3个电力系统典型模型的潮流和稳定分别进行了计算 ,分析表明这两种电力系统仿真软件得到的结果几乎完全相同 ,但也存在一定的差异 ,对其原因给出了初步的解释 ,并介绍了应用 MATLAB进行电力系统仿真时经常用到的一些方法。
