An Active Harmonic Filter (AHF) is a dynamic power quality management device. It based on power electronics technology, primarily designed to eliminate harmonic currents and compensate reactive power in electrical systems. Its core operation revolves around real-time detection, calculation, and dynamic compensation of harmonic distortions. So what situation do we need this equipment? Metallurgy In...
Both Passive Power Factor Correction(PPFC) and Active Power Factor Correction(APFC) are used to improve power factor and reduce reactive power, but they differ in complexity, cost, and performance. Passive Power Factor Correction (PPFC) Method: Uses passive components (capacitors, reactors, or filters) to compensate for reactive power. Types of Passive PFC: A. Capacitor Ba...
Think of our power grid like a giant Jenga tower. As we add more wind turbines and solar panels (the green blocks), the tower becomes wobblier. This happens because sunshine and wind change like mood swings. One minute your solar panels are pumping out power during a cloudless noon, the next they’re napping when a storm rolls in. This makes the entire electricity system feel like a weak Wi-F...
Analysis of 3 Different Power Factor Correction Solutions: Capacitors, SVG, and AHF In today’s industrial and commercial environments, ensuring power quality is more than just good practice—it’s a necessity. Poor power quality can lead to equipment malfunctions, increased utility costs, and downtime. One major aspect of power quality is the power factor—a measure of ho...
1. Current Transformer (CT) A Current Transformer is an instrument transformer used to measure alternating current (AC) by stepping down high currents to a lower, measurable value. Key Functions: Current Measurement: Steps down high primary current (e.g., 1000A) to a standardized secondary current (e.g., 5A or 1A) for meters and relays. Isolation: Provides galvanic isolation be...
China Power Quality Issues: Impacts, Costs, and Advanced Solutions In the rapidly evolving landscape of China's power sector, power quality issues have emerged as a critical challenge, demanding immediate attention and effective solutions. This article conducts a comprehensive analysis of the impacts, costs, and advanced equipment solutions related to power quality in China, drawing insight...
Active Harmonic Filters (AHFs) are widely used in buildings to mitigate harmonic distortion caused by non-linear loads, ensuring power quality, energy efficiency, and compliance with standards like IEEE 519 and IEC 61000-3-6. Here are key applications of AHFs in buildings: 1. Office Buildings & Commercial Complexes Loads: LED lighting, VFDs (HVAC systems), elevators, UPS systems...
The combination of a Static VAR Generator (SVG) and Thyristor-Switched Capacitor (TSC) creates a high-performance hybrid reactive power compensation system. This setup leverages the fast dynamic response of the SVG with the cost-effective bulk compensation capability of TSC. How SVG + TSC Works SVG (Static VAR Generator) Uses a voltage-source converter (VSC) with IGBT...
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