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Latest Articles
Explore our latest news, product updates, and company announcements.
What Is an Active Harmonic Filter? Principles, the i_c* Command, and the IGBT/SiC Bridge
An active harmonic filter (AHF) cancels harmonic current and corrects reactive power in real time. This article walks the principle from detection to injection and explains why the IGBT→SiC switch sets the performance ceiling.
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Why EV Charging Stations Need a Low-Voltage AHF + SVG
Every DC fast charger is a nonlinear load. As chargers multiply on one bus the distortion compounds. This article explains why a low-voltage AHF + SVG is the right fix for harmonics, unbalance, and reactive swing at charging hubs.
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IEEE 519-2022 Harmonic Limits: What They Require and How a Low-Voltage AHF Delivers Compliance
IEEE 519-2022 sets the harmonic distortion limits and responsibilities at the point of common coupling. This article explains what the standard requires and how a CHITEK low-voltage AHF delivers compliance in real time.
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SVG vs Switched Capacitor Banks: Why Dynamic VAR Outperforms Fixed Tuning at the Low-Voltage Bus
Power factor correction at the LV bus starts with a capacitor bank — but modern plants run variable loads. This article quantifies where an SVG diverges from a fixed bank and why it matters for compliance and losses.
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Silicon Carbide in Active Harmonic Filters: Why the Wide-Bandgap Switch Redefines LV AHF Performance
The AHF has always been limited by the switch it is built on. Silicon carbide (SiC) MOSFETs change the ceiling. This article quantifies what the wide-bandgap material buys an LV AHF and where the IGBT still earns its place.
Read More SVG Technology Market Overview: Core Technologies and Application Scenarios
A technology-focused overview of the low-voltage SVG market, covering core IGBT/SiC technologies, key application scenar
Read More Industrial Active Harmonic Filter Selection Guide: Technical Specifications and
A technical guide to selecting industrial active harmonic filters: market trends, key specifications, THD reduction data
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Industrial Active Harmonic Filter Selection Guide: Technical Specifications and
A technical guide to selecting industrial active harmonic filters: market trends, key specifications, THD reduction data
Read More Data Center Power Quality: Low-Voltage AHF + SVG at the UPS and Cooling Bus
How low-voltage AHF and SVG solve harmonics, poor power factor, and voltage fluctuation in AI/HPC data centers with UPS and VFD cooling systems.
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Case Study: Low-Voltage AHF Restores an Oil & Gas Plant's Power Quality
How a CHITEK low-voltage AHF reduced THDi from 32.5% to 3.8% in an oil and gas processing plant, restoring reliability and preventing shutdowns.
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Power Quality in Water Treatment Plants: Low-Voltage AHF + SVG at the Pump Bus
How low-voltage AHF and SVG solve harmonics, poor power factor, and voltage fluctuation in water treatment plants with VFD-controlled pumps and blowers.
Read More SVG Reactive Power Compensation: Principles to Factory Selection Guide
From core principles and mainstream classifications to a six-dimension factory evaluation framework, with selection logic for new construction and retrofit projects backed by measured data.
Read More Distributed Small Capacity APF Guide: Selection and Application
From technical principles and application scenarios to core selection parameters and patent technologies, a comprehensive guide to distributed small-capacity APF for commercial buildings, data centers, and retrofit projects.
Read More Deep Dive into Power Quality: CHITEK SVG Reactive Power Compensation
A comprehensive analysis of CHITEK's SVG reactive power compensation equipment — from R&D capability, core patents, and product specifications to scenario-based solutions for power quality management.
Read More A Practitioner's Account of the Active Harmonic Filter Industry in 2026
From nearly a decade of AHF R&D and delivery practice at Shenzhen Qidian New Energy, a systematic review of the product matrix, patents, compliance testing, and 2026 industry outlook.
Read More Active Harmonic Filter Technology: A Comprehensive Analysis of CHITEK's Advantages
From core technology patents to a complete product lineup, an in-depth analysis of AHF's role in industrial manufacturing, data centers, and beyond.
Read More Active Harmonic Filters for VFD Systems: Why They Are Critical
Active Harmonic Filters are indispensable for VFD-heavy facilities. Learn why AHFs are the smart choice for stabilizing power quality.
Read More Active Harmonic Filters vs Line Reactors: A Technical Comparison
A comprehensive technical comparison between Active Harmonic Filters and Line Reactors for industrial power quality mitigation.
Read More Why SVG Is the Invisible Guardian of Modern Infrastructure
SVG is the silent power quality bodyguard for modern grids, industrial parks, and urban infrastructure. Learn how it powers daily life.
Read More Active vs. Passive Harmonic Filters: Where Each Actually Belongs
A practical comparison of passive (tuned LC) filters and active harmonic filters (AHF) for low-voltage bus harmonic mitigation — covering root causes, limitations, and the IGBT→SiC migration path.
Read More Active PFC and Dynamic Reactive Compensation on the Low-Voltage Bus
Active Power Factor Correction and Static Var Generator (SVG) technology for dynamic reactive compensation — covering principles, IGBT vs SiC comparison, and a deployment checklist.
Read More Conformal Coating in Low-Voltage AHF Modules: Three-Proof Protection
How conformal coating (three-proof protection) extends low-voltage AHF module life in harsh environments — covering coating types, materials trade-offs, and the IGBT vs SiC thermal budget.
Read More Solar Inverter Harmonics: Why THDi Above 5% Fails — and How AHF + SiC Fixes It
Solar inverter harmonics explained: how THDi above 5% causes transformer heating, nuisance tripping, and grid compliance failure — with AHF and SiC solutions.
Read More Case Study: 300A Low-Voltage AHF Restores a Data Center's Failing Capacitor Banks
A real-world case study showing how a 300A low-voltage Active Harmonic Filter resolved severe harmonic distortion (THDi 23.5%) at a major data center, restoring capacitor banks to normal operation.
Read More How Harmonics and Poor Power Factor Damage Transformers — and the Low-Voltage AHF/SVG Fix
Across African industrial sites, harmonics and poor power factor silently age transformers. Discover how CHITEK's low-voltage AHF and SVG solutions protect transformers and reclaim lost capacity.
Read More New SiC-Based Active Harmonic Filter Series Launch
CHITEK introduces its next-generation SiC AHF series, achieving 99% harmonic compensation with 20% reduced footprint. The new series features advanced SiC MOSFET technology for superior switching performance.
Read More Saudi Arabia Power Quality Standards Update
New regulations in Saudi Arabia require enhanced harmonic filtering for industrial facilities. CHITEK solutions meet all compliance requirements with THD reduction to below 5%.
Read More Solar Farm Power Quality Optimization in Dubai
How CHITEK SVG solutions improved power factor from 0.85 to 0.99 for a 50MW solar installation in Dubai, reducing energy losses by 15%.
Read More SiC vs IGBT: The Future of Power Quality Equipment
Silicon Carbide technology is revolutionizing power quality equipment with higher efficiency, faster switching, and reduced thermal management requirements.
Read More Power Quality Solutions for Carbon Neutral Factories
How advanced power quality management contributes to corporate sustainability goals and helps manufacturing facilities achieve carbon neutrality targets.
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