在考虑HVDC连接和虚拟惯性的情况下,在多区域电力系统的部分负载计划中应用最佳倾斜控制器
Sanjeev Kumar Bhagat1, Lalit Chandra Saikia2, Naladi Ram Babu3
1National Institute of Technology Silchar, 788010 Assam, India; Sandip University, Neelam Vidya Vihar, Village Sijoul, P.O. Mailam, Madhubani, Bihar, India.
ISA transactions
|December 23, 2023
概括
这项研究优化了动力系统的自动生成控制 (AGC),使用新的鸟算法 (BSA) 调整2度自由度倾斜积分导数 (2DOF-TID) 控制器. 与BSA调节的控制器在各种负载条件下提高了电力系统的稳定性和频率调节.
科学领域:
- 电气工程 电气工程
- 电力系统分析 分析 分析
- 控制理论 控制理论
背景情况:
- 由于规模和复杂性,现代电力系统面临着越来越多的可靠性挑战.
- 频率调节对于稳定的电力系统运行至关重要.
- 自动发电控制 (AGC) 是频率调节的一个关键组成部分.
研究的目的:
- 为了研究多区域电力系统中的AGC,用水电和热电单元的部分负载.
- 提出和评估基于鸟算法 (BSA) 的2度自由倾斜积分导数 (2DOF-TID) 控制器.
- 将拟议控制器的性能与传统方法和其他优化技术进行比较.
主要方法:
- 使用鸟算法 (BSA) 优化的2DOF-TID控制器的开发.
- 在各种部分负载场景下模拟一个多区域的水热发电系统.
- 使用拟议控制器与传统控制器 (例如,PID) 和其他算法 (例如,GA,PSO) 的系统动态的比较分析.
- 研究高压直流 (HVDC) 链路和虚拟惯性模拟与储能系统.
主要成果:
- 与传统控制器相比,BSA优化的2DOF-TID控制器在改善系统动态方面表现出卓越的性能.
- 水电单元的部分负载超过标称容量会降低动态响应,而超过热单元容量会提高动态响应.
- 与储能系统的虚拟惯性模拟提供了比单独AC/HVDC链路更好的动态响应.
结论:
- 拟议的基于BSA的2DOF-TID控制器为提高复杂电力系统的AGC性能提供了有效的解决方案.
- 了解部分负载对水热发电机组的影响对于保持系统稳定至关重要.
- 虚拟惯性仿真是改善电力系统频率调节和可靠性的有希望的策略.
相关概念视频
01:28Load-frequency control
165
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
165
01:23Maximum Power Flow and Line Loadability
117
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.
117
01:30Control of Power Flow
271
There are several methods to control power flow in power systems:
271
01:25Multimachine Stability
163
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:
163
01:21Distributed Loads: Problem Solving
647
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
647
01:26The Power Flow Problem and Solution
226
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...
226