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...
What is "HT sensing" in reactive power compensation? In a typical HT sensing and low-compensation scheme: HT sensing: The system samples voltage and current on the high-voltage side (e.g., 10kV) using CTs and PTs. Low-side compensation: The actual compensation—either reactive power support (SVG/capacitors) or harmonic filtering (AHF)—is implemented on the low-voltage side (e.g., 400V)....
Why Capacitors Are the Preferred Choice for Reactive Power Compensation When it comes to low-voltage reactive power compensation, the conversation usually narrows down to two options: capacitor banks and Static Var Generators. Ask around, and you’ll likely hear one common reason why capacitors remain popular:“They’re cheaper.” That’s true—but the real answer goe...
In Poland, reactive power management is governed by grid codes and regulations set by the Transmission System Operator (PSE - Polskie Sieci Elektroenergetyczne) and Distribution System Operators (DSOs). The policies aim to ensure grid stability, minimize losses, and maintain efficient power flow. 1. Reactive Power Requirements in Poland A. General Power Factor (PF) Standards St...
Can Active Power Filters (APF) and Static Var Generators (SVG) Provide Significant Solutions for the Rapidly Growing EV Charging Pile/Station Market? As global EV ownership surges, power quality issues in charging infrastructure have become increasingly prominent. As nonlinear loads, EV chargers generate harmonic pollution and reactive power fluctuations during operation, leading to grid vo...
Design of Power Quality Optimization Scheme for Wind Farms I. Typical Power Quality Issues in Wind Farms Voltage Fluctuations & Flicker Sudden wind speed changes → Power fluctuations → Bus voltage variations (especially in weak grids) Harmonics & Interharmonics Converter switching frequencies (2-6kHz) generate characteristic harmonics (e.g., 5th, 7th, 11th, 13th) Tower shadow eff...
Have you ever heard of "harmonics" in electrical systems? If not, it’s time to pay attention—because these invisible distortions could be silently eroding efficiency, damaging equipment, and inflating energy costs. But what are harmonics, exactly? Think of electrical current as a symphony: ideal current flows smoothly in a single "note" (frequency). Harmonics are unwan...
Harmonics are a critical yet often overlooked phenomenon in electrical systems. They represent distortions in the ideal sinusoidal waveform of voltage or current, occurring at frequencies that are integer multiples of the fundamental power frequency (e.g., 50 Hz or 60 Hz). While harmonics are inherent in modern power systems, their uncontrolled presence can lead to severe operational and financial...
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