From Shanghai’s skyscrapers to Africa’s solar farms, the YTPQC-SVG Static Var Generator is redefining power quality standards across continents. Its secret lies in a blend of rugged hardware and intelligent software, designed to thrive in the harshest environments while delivering lab-grade precision. At the core of the SVG is its TI DSP and FPGA-powered analytics...
The Short Summary A healthy AHF typically produces two types of noise: A low hum from the internal reactor (inductor) and cooling fans. This is normal. A high-frequency "switching" whine or buzz from the Insulated-Gate Bipolar Transistors (IGBTs). This is usually very faint. If the noise becomes loud, intrusive, or changes significantly, it is often a sign of a problem. Detailed Breakdow...
EMC (Electromagnetic Compatibility) testing for an Active Harmonic Filter AHF is critical and non-negotiable. An AHF(APF) is a power electronics device (like a high-frequency inverter) that injects canceling currents into a noisy electrical system. If poorly designed, it can become a significant source of electromagnetic interference (EMI) itself, disrupting other equipment. Conversely, it mu...
The Problem: Variable Speed Drives Generate Harmonics What is a Variable Speed Drive (VSD/VFD)?A Variable Speed Drive (VSD), also commonly called a Variable Frequency Drive (VFD) or Adjustable Speed Drive (ASD), is an electronic device that controls the speed and torque of an AC electric motor by varying the motor's input frequency and voltage. How Do They Cause Harmonics?The internal design of a ...
Introduction As global energy demand continues to rise, distributed photovoltaic (PV) generation has emerged as a key solution for achieving sustainable and decentralized power. In Latin America, Colombia has been steadily expanding its renewable energy capacity, with the city of Medellín—a vibrant urban hub surrounded by the Andes Mountains—leading the way in solar adoption. Th...
IN any system containing nonlinear loads that use phase-angle control or abrupt switching, particularly those that draw a non-sinusoidal current. The specific range of "2nd to 51st" is a classic signature of certain technologies.Here are the most common places where you would find such a wide harmonic spectrum: 1. The Classic Example: Thyristor-Controlled Reactor (TCR) in SVC Plants This is the mo...
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