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相关概念视频

Power Factor Correction01:20

Power Factor Correction

465
The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
465
Phase-lead and Phase-lag Controllers01:22

Phase-lead and Phase-lag Controllers

505
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
505
Generation of Three-Phase Voltage01:21

Generation of Three-Phase Voltage

726
A three-phase AC generator has a rotor with a rotating magnet placed within the stator mounted with the stationary three-phase winding to generate three-phase voltages via mutual induction. These windings are evenly distributed around the inner circumference of the stator and are arranged 120 electrical degrees apart. Three-phase stator windings consist of three separate coils or groups of coils, known as phases, each connected in Y (star) configuration or Delta configuration.
As the rotor...
726
Power System Three-Phase Short Circuits01:21

Power System Three-Phase Short Circuits

497
Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...
497
Power Distribution in Three-phase and Single Phase Circuits01:17

Power Distribution in Three-phase and Single Phase Circuits

583
Power distribution within electrical circuits is a foundational aspect of residential and industrial energy systems. While single-phase power is common in residential settings, three-phase power is the standard for industrial environments with heavy machinery. Each system is different and has advantages, and it's crucial to understand the underlying principles of power distribution and material efficiency.
Single-Phase Power Distribution:
Single-phase circuits are typical in household settings;...
583
Control of Power Flow01:30

Control of Power Flow

651
There are several methods to control power flow in power systems:
651

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Updated: Jan 9, 2026

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator
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基于FFO的控制器用于三相逆变器,以减少光伏集成微电网系统中的电力质量问题.

Narisetti Ashok Kumar1, M Kiran Kumar1, B Srikanth Goud2

  • 1Department of Electrical and Electronics Engineering, Koneru Lakshmaiah Education Foundation, Guntur, India.

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PubMed
概括

本研究引入了微电网的新型控制器,通过管理可再生能源来提高电力质量. 芬尼克·福克斯优化算法确保了稳定的频率和功率系数,减少了总波扭曲.

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科学领域:

  • 电气工程 电气工程
  • 可再生能源系统可再生能源系统

背景情况:

  • 可再生能源 (RES) 融入电网导致电力质量 (PQ) 问题,如电压失衡和总波 (THD).
  • 微电网 (MGs) 面临着由于来自多种能源的不确定性而维持稳定的电力流动的挑战.

研究的目的:

  • 为微电网提出一个独特的调节系统,以管理电力流并减轻PQ问题.
  • 通过集成的可再生能源来提高微电网的可靠性和电力质量.

主要方法:

  • 使用光伏,风力轮机和电池作为分布式能源 (DER) 开发了一个微电网模型.
  • 使用Fennec Fox优化 (FFO) 设计了一种新的最佳控制器,以基于直流电压,合电压和负载电流来调节电流.
  • 控制器生成一个三相逆变器脉冲信号来调整来自光伏和风能的电源.

主要成果:

  • 基于FFO的控制器有效地将总波扭曲 (THD) 降低到2.2%,并在简单的微电网中保持0.8功率因子和50 Hz频率.
  • 在各种PQ条件下验证了性能,包括需求响应,线路阻抗和在一个大,三相结构中的非名义场景.

结论:

  • 拟议的控制器成功地减轻了微电网中的PQ问题,确保了恒定的频率和功率因子.
  • 基于Fennec Fox优化的方法提供了一个可行的和有效的解决方案,用于提高微电网稳定性和电力质量.