Need UPS sizing assistance? Our engineers calculate your exact power protection requirements. Contact Technical Support →

GridTitan UPS Technology & Engineering

The technical architecture behind every GridTitan UPS system — from IGBT rectifier design to DSP-based control algorithms. Built by engineers, documented for engineers.

Core Topology

Double-Conversion VFI-SS-111

Every GridTitan online UPS operates in true double-conversion mode per IEC 62040-3 classification VFI-SS-111. Incoming AC power is continuously rectified to DC, conditioned, and re-inverted to produce a regulated sinusoidal output — isolating the critical load from all mains disturbances including sags, surges, frequency variations, and harmonic content.

< 2 ms Transfer Time (zero for VFI)
96.5% AC-AC Efficiency
VFI-SS-111 IEC 62040-3 Class
< 1% THDv Output Distortion
GridTitan double-conversion VFI UPS topology diagram
Power Quality

Active Power Factor Correction

GridTitan UPS rectifiers employ IGBT-based active PFC circuits that shape the input current waveform to near-unity power factor. This eliminates the reactive power penalty that passive PFC designs impose on the upstream distribution, reduces generator sizing requirements, and ensures compliance with EN 61000-3-12 harmonic limits.

Parameter GridTitan Active PFC Passive PFC (Typical)
Input Power Factor > 0.99 0.75 – 0.85
Input THDi < 3% 25 – 35%
Generator Compatibility 1:1 sizing ratio 1.5 – 2x oversizing
GridTitan IGBT-based active PFC rectifier module
Scalability

Modular Parallel Redundancy

GridTitan modular UPS platforms use independently operating power modules that share a common DC bus and communicate via a deterministic CAN bus protocol. Each module contains its own rectifier, inverter, and control DSP, enabling true N+1 redundancy without external synchronization hardware. Modules are hot-swappable — mean time to repair is under 10 minutes with no load interruption.

  • Scalable capacity: 20 kVA to 1.2 MVA in a single frame
  • Hot-swap modules: MTTR < 10 minutes, no tools required
  • Distributed control: No single point of failure in control architecture
  • Pay-as-you-grow: Deploy capacity in 20/25/30 kVA increments
GridTitan hot-swappable modular UPS power modules
Intelligence

DSP-Based Digital Control

All GridTitan UPS inverters use 32-bit DSP controllers executing multi-loop control algorithms at 20 kHz switching frequency. This enables precise output voltage regulation (±1%), seamless static transfer (<2 ms), and adaptive battery charging profiles that extend VRLA service life by up to 25%.

20 kHz PWM Switching Frequency

High switching frequency produces clean sinusoidal output with <1% THDv, eliminating the need for large output filters.

± 1% Output Voltage Regulation

Steady-state voltage regulation within ±1% for linear loads and ±2% for 100% step loads per IEC 62040-3.

IEC 61850 Communication Protocol

Native IEC 61850, Modbus TCP/RTU, SNMP v3, and dry contact interfaces for SCADA integration.

Access Technical Documentation

Download product datasheets, application notes, and white papers on UPS topology selection, harmonic analysis, and battery sizing methodology.

Download Datasheet