一种适应性减负方法,用于可再生能源集成电力系统
Sk Fahim Abrar1, Nahid-Al Masood1, Mohammad Jahangir Alam1
1Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1205, Bangladesh.
Heliyon
|November 18, 2024
概括
现代电力系统面临的稳定性挑战与可再生能源的整合. 本研究介绍了一种使用电池储能系统 (BESS) 的新负载减排策略,以在中断期间保持电网频率和电压稳定性.
科学领域:
- 电气工程 电气工程
- 电力系统工程 电力系统工程
- 整合可再生能源的整合
背景情况:
- 现代电力系统越来越多地集成可再生能源,导致频率和电压的复杂稳定性问题.
- 传统的减负策略不足以管理可再生能源间歇性造成的大规模干扰.
- 确保可持续,无污染的发电需要先进的电网管理技术.
研究的目的:
- 开发和验证适应性减负方案,用于具有大量光伏发电 (PV) 的现代电力系统.
- 通过使用电池储能系统 (BESS) 和根据稳定性参数智能选择料来最大限度地降低负载脱落.
- 在大规模中断事件期间保持系统频率和电压稳定性在可接受的范围内.
主要方法:
- 建议采用一种新的方法,根据频率变化,电压稳定性,减压系数和可再生能源透率来计算负载总线的费率.
- 电池储能系统 (BESS) 集成,以减少所需的负载减排量.
- 适应式料选择机制根据电压和频率稳定性组件的权重重要性动态选择料.
主要成果:
- 拟议的方案在IEEE 39总线系统上使用Python脚本模拟在光伏发电 (250-1500兆瓦) 和传统发电损耗 (800-1000兆瓦) 的各种场景下进行了测试.
- 在所有测试的场景中,该方法成功地保持了系统频率高于49.10赫兹的值.
- 实现了最小的负载脱落,证明了自适应料选择和BESS集成的有效性.
结论:
- 拟议的方法有效地提高了现代电力系统的频率稳定性,并实现了大规模光伏集成.
- 与BESS相结合的自适应料选择提供了一个强大的解决方案,用于在中断期间管理电网稳定性.
- 这种方法提供了一种可持续和有效的方式来应对电网中可再生能源带来的挑战.
相关概念视频
Fast Decoupled and DC Powerflow
175
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:
175
Load-frequency control
126
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...
126
Maximum Power Flow and Line Loadability
95
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.
95
Control of Power Flow
253
There are several methods to control power flow in power systems:
253
Reducing Line Loss
144
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
144
Distribution Reliability and Automation
105
Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
105


