在双极直流非对称分布网络中解决电流问题,使用布罗伊登的方法.
Oscar Danilo Montoya1, Ángeles Medina-Quesada2, Walter Gil-González3
1Grupo de Compatibilidad e Interferencia Electromagnética (GCEM), Facultad de Ingeniería, Universidad Distrital Francisco José de Caldas, Bogotá 110231, Colombia.
Sensors (Basel, Switzerland)
|August 12, 2023
概括
研究人员应用了布罗伊登的方法来解决双极不对称直流 (DC) 网络中的电流问题. 这种数值方法对于各种网格大小的复杂非线性方程是有效的.
科学领域:
- 电气工程 电气工程
- 计算电磁学 计算机电磁学
背景情况:
- 在双极不对称直流网络中的电流分析由于中性电线配置而存在挑战.
- 现有的方法可能无法有效地处理这些系统固有的非线性.
研究的目的:
- 概括布罗伊登的数值方法用于双极不对称直流网络中的功率流分析.
- 为现有的功率流量解决方案技术提供一种高效,强大的替代方案.
主要方法:
- 应用布罗登的数值方法,一个连续的近似技术.
- 使用基于牛顿的递归公式来解决非线性方程.
- 在 MATLAB 编程环境中进行的模拟.
主要成果:
- 布罗登的方法在解决双极不对称直流网络的功率流量方面表现出有效性.
- 该方法在21号,33号和85号公共汽车网络上得到了验证,这些网络具有接地和浮动中性配置.
- 数值结果证实了该方法在特定条件下与向后/向前和连续近似功率流量方法的等价性.
结论:
- 布罗登的方法为复杂的双极不对称直流网络中的电流分析提供了可行和高效的解决方案.
- 一般化方法为工程师和研究人员在电力系统分析方面提供了可靠的工具.
- 该研究强调了该方法在不同网络规模和中立接地场景中的适用性.
相关概念视频
01:26The Power Flow Problem and Solution
258
Power flow problem analysis is fundamental for determining real and reactive power flows in network components, such as transmission lines, transformers, and loads. The power system's single-line diagram provides data on the bus, transmission line, and transformer. Each bus k in the system is characterized by four key variables: voltage magnitude Vk, phase angle δk, real power Pk, and reactive power Qk. Two of these four variables are inputs, while the...
258
01:24Fast Decoupled and DC Powerflow
233
The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
233
01:30Control of Power Flow
290
There are several methods to control power flow in power systems:
290
01:25Multimachine Stability
191
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
191
01:15Power Dissipated in a Circuit: Problem Solving
1.2K
The equivalent resistance of a combination of resistors depends on their values and how they are connected.
The simplest combinations of resistors are series and parallel connections. In a series circuit, the first resistor's output current flows into the second resistor's input; therefore, each resistor's current is the same. Thus, the equivalent resistance is the algebraic sum of the resistances. The current through the circuit can be found from Ohm's law and is equal to the...
The simplest combinations of resistors are series and parallel connections. In a series circuit, the first resistor's output current flows into the second resistor's input; therefore, each resistor's current is the same. Thus, the equivalent resistance is the algebraic sum of the resistances. The current through the circuit can be found from Ohm's law and is equal to the...
1.2K
01:23Maximum Power Flow and Line Loadability
138
The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
138