Integrated RLC Modelling for Streamlining Anti-Islanding Testing
Discover how grid simulator integrated with RLC modelling functions facilitate the testing setup for anti-islanding without engaging complex deployment of RLC load banks.
Read the Note
TITAN High-Power Grid Simulator is a four-quadrant AC power source engineered by ActionPower for grid code compliance testing against grid-connected converters at utility-scale power rating. The tower-type architecture defined by ActionPower functionally grants TITAN the compatibility between high-power rating and uncompromised dynamics and electrical performance. A single cabinet TITAN offers power rating starting from 300 kVA to 1 MVA, with further master-slave parallel option via DMPS and high-speed fibre-optic communication to reach 10 MVA, building a definitive testing environment for utility-scale grid-following and grid-forming inverters, and PCS, by simulating complex conditions as if at real Point of Common Coupling (PCC).
Further by integrating an optional and additional load cabinet, TITAN's grid emulation capability can be enhanced with advanced configuration of complex grid conditions though SCR and X/R mode, with integrated RLC modelling simulation for anti-islanding test, and built-in pre-compliance testing sequence automation for IEEE 1547, UL 1741 and IEC series as per user's requirements. For high-power and long-during utility-scale testing, TITAN saves your operational energy costs and thermal management TCO by regenerative technology returning power to local utility with an efficiency of 94%.
Find the right specification for your requirements
| Model | Power (kVA) | Voltage Range (V) @ L-N | Frequency Range (Hz) | Max. Current (A) @ 3-Phase | Dimension (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| TA300-576-03 | 300 | 0-576 | 40-70 | 300 | 2410x1955x1200 | 2960 |
| TA400-576-04 | 400 | 0-576 | 40-70 | 400 | 2410x1955x1200 | 2960 |
| TA500-576-05 | 500 | 0-576 | 40-70 | 500 | 2410x1955x1200 | 2960 |
| TA600-576-06 | 600 | 0-576 | 40-70 | 600 | 3410x1955x1400 | 5300 |
| TA700-576-07 | 750 | 0-576 | 40-70 | 750 | 3410x1955x1400 | 5300 |
Find the right specification for your requirements
| Model | Power (kVA) | Voltage Range(V) @ L-N | Frequency Range (Hz) | Max. Current (A) @ 3-Phase | Weight (kg) | Dimension (mm) |
|---|---|---|---|---|---|---|
| AGS-50-4508 | 500 | 0-450 | 40-70 | 800 | 3860 | 2410x1955x1400 |
| AGS-75-4512 | 750 | 0-450 | 40-70 | 1200 | 5310 | 3410x1955x1400 |
| AGS-50-8605 | 500 | 0-860 | 40-70 | 500 | 2960 | 2410x1955x1200 |
| AGS-75-8607 | 750 | 0-860 | 40-70 | 700 | 5080 | 3410x1955x1400 |
| AGS-100-9010 | 1000 | 0-900 | 40-70 | 1000 | 5810 | 3410x1955x1400 |
| AGS-150-9015 | 1500 | 0-900 | 40-70 | 1500 | 8800 | 4810x1955x1400 |
| AGS-200-9018 | 2000 | 0-900 | 40-70 | 1800 | 10010 | 5020x1955x1400 |
High-power grid simulator for reproducing abnormal grid conditions with complex electrical and energy profiles, with uncompromised performance, flexible testing automation sequence, and reduced total cost of ownership.
Utility-scale grid interoperability testing is featured by ultra-high-power of 10-15 MWh from battery container side and 5-10 MW for converters. TITAN matches the high-power testing scenario during charging sequence while for discharging sequence it recovers energy back to local utility with an efficiency of 94%.
TITAN can be setup together with an additional set of load sub-cabinet to convert into a source-load system as TITAN AC Load Simulator with source-load integration and four-quadrant operation capability for GFM capability testing and comprehensive grid interconnection testing and validation.
Opt for TITAN as your MVA-level grid emulation testing platform for sustainable, high-ROI applications across PCS, PV inverters, BESS, emerging DER categories such as V2X/V2G infrastructure, and UPS systems for AI data-center-connected energy architectures.
Primary Advantages
TDMPS (Digital Matrix Parallel System) feature by ActionPower allows multiple sets of TITAN to be parallelled in master-slave into a unified MW-level testing platform up to 10 MVA with flexible re-combination options for separating the existing platform into several sub master-slave sections. The high-speed fiber-optic interconnection feature maintains precise phase alignment, consistent power-sharing, and transient dynamics at high-power scale.
LVRT, HVRT and ZVRT, ROCOF, along with the slew rate are what test engineers mostly care about as the fundamental specifications for a dynamic and responsive testing test bench. TITAN produces real-world transient anomalies with a high slew rate of 1V/μs and ultra-low THD <0.5%.
TITAN provides fully decoupled control over all three AC phases, enabling continuous phase adjustment from 0° to 359.9° with an ultra-fine 0.1° resolution. This allows for realistic emulation of phase shifts, splitting, and severe voltage imbalances.
Real grid environments are distorted due to the participation and interoperation of various non-linear loads for which harmonics and inter-harmonics are everywhere. In lab testing conditions, TITAN supports continuous harmonic frequency sweeping, complex inter-harmonic injection (1 Hz to 2500 Hz), and dynamic flicker emulation.
TITAN High-Power Grid Simulator can integrate an additional set of load cabinet for offering integrated RLC network modelling for identifying flexibly, time-savingly, and straightforwardly the most strict NDZ condition against PV inverter and PCS testing. Compared to conventional approach to anti-islanding test, TITAN waivers the essentialness of implementing massive, heat-generating RLC (Resistive, Inductive, Capacitive) load banks, which consume significant lab footprint and drive up HVAC cooling expenses.
For more details about TITAN with integrated RLC load functionality, check TITAN AC Load Simulator
By optionally integrating additional hardware and software, TITAN can replicate weak grid conditions via advanced SCR, X/R configuration mode for validating and assessing Grid-Forming (GFM) and Grid-Following (GFL) inverters against complex grid and electrical environments.
Streamline your certification lifecycle with automated test sequences while ensuring ultimate safety for sensitive Equipment Under Test (EUTs), especially devices with large DC-link capacitors or rectifier front ends.
LVRT, ZVRT, and sub-millisecond voltage dip emulation
Fig 1. 920μs Microsecond-Scale Transient & Fault Simulation
Captured at 1.25MS/s, demonstrating sub-millisecond precision and inductive load-shedding reproduction at -745V.
Fig 7. Voltage Step & LVRT Recovery Emulation
Instantaneous amplitude transitions with seamless phase continuity for IEEE 1547 and UL 1741 compliance.
Fig 9. Three-Phase LVRT & Zero-Voltage Ride-Through (ZVRT)
Sharp transient edges and seamless recovery essential for the most stringent global grid codes.
Fig 10. Rapid Voltage Sag & LVRT Emulation
Minimal transient distortion during rapid sags to assess dynamic stability of MW-scale systems.
Fig 11. 60° Phase-Point Asymmetrical ZVRT
Fault triggering at exact temporal points to validate negative-sequence compensation algorithms.
Independent phase harmonics, flicker, and resonance analysis
Fig 2. Complex Multi-Order Independent Harmonic Injection
Injecting different harmonic orders into each phase for IEC 61000-3-x grid-code adaptability testing.
Fig 3. Harmonic Frequency Sweep on 50Hz Fundamentals
Characterizing harmonic impedance and identifying resonance points of the DUT.
Fig 4. Step-type Sequenced Voltage Flicker Emulation
Discrete voltage step modulation for tap changer emulation (IEC 61000-4-11).
ROCOF, phase shifts, and PLL stability validation
Fig 5. Phase Shift Reproduction
Validating PLL response speed and transient stability per IEEE 1547.1.
Fig 6. ROCOF and Frequency Step Waveform
Frequency shift emulation while maintaining waveform continuity for OVP/UVP testing.
Fig 8. Phase Loss & Shift Waveforms
Near-zero latency transition to single-phase state for stress-testing FRT logic.
The following specifications are subject to modifications and changes without notification in advance. All specifications measured are at product's maximum ratings, if not otherwise noted.
| VOLTAGE | |
|---|---|
| Setting Resolution (V) | 0.01 |
| Accuracy | ±0.1% F.S. |
| Wave Type | Sine |
| DC Component (mV) | <50mV |
| Voltage Distortion |
|
| Load Regulation | ±0.1% F.S. |
| Line Regulation | ±0.1% F.S. @ 10% variation |
| Voltage Slew Rate | AC > 1.0V/μs |
| Dynamic Response | <1ms (10%-90%Umax) |
| Three-Phase Unbalance |
|
| CURRENT | |
|---|---|
| Accuracy | ±0.1 F.S. |
| Resolution | 0.01A |
| FREQUENCY | |
|---|---|
| Accuracy | ±0.01% |
| Resolution | 0.001Hz |
| Range | 40-70Hz |
| PHASE ANGLE CONTROL | |
|---|---|
| Accuracy | ±0.3° |
| Resolution | ±0.1° |
| Phase Angle Range | 0.359.9° |
| Phase Control | Single-phase, Three-phase, Three-phase independent |
| VOLTAGE RIDE-THROUGH | |
|---|---|
| Mode | ZVRT/LVTR/HVRT |
| Setting Parameters | Voltage, frequency, phase, rise time, hold time, trigger phase angle, pulse output |
| HARMONIC INJECTION | |
|---|---|
| Cycles | 50 cycles @ 50Hz, 50 cycles @ 60Hz |
| Content |
|
| Amplitude Error | ±5% harmonic of set value |
| Phase Angle Range | 0° ~ 359.9° |
| Preview Function | Preview options for harmonic synthesis waveform |
| Edit Mode | Import, export, read, storage |
| INTER-HARMONIC | |
|---|---|
| Frequency Range | 1Hz-3,000Hz, content <10% |
| Programming Steps | 100 steps |
| Programming Parameters | Content, start frequency, end frequency, step length, execution time, interval time, cycle times and sequence |
| Editing Mode | Add, delete, import, export, store, read |
| FLICKERS | |
|---|---|
| Flicker Level | 1.0-10.0, totally 10 levels in total, and one-key calling |
| Adjustment Step Length | 1 |
| Accuracy | ±0.2 |
| Preview Functions | Preview generation of clicker trends with visualized PST |
| THREE-PHASE UNBALANCE | |
|---|---|
| Adjustment Mode | Three-phase voltage, single phase, unbalance factor |
| Unbalance Factor Range (%) | 1~100 |
| Unbalance Factor Step Length (%) | 1 |
| Accuracy (%) | ±0.5% |
| Preview Functions | Preview options for three-phase unbalance trend |
| Programming Mode | List, Pulse, Step |
|---|---|
| Programming Steps | 100 steps |
| Parameters per Step | Voltage, Frequency, Phase, Transition Time, Hold Time, Trigger Phase Angle, Trigger Pulse Output |
| Rise Time Range | 100us-999s - 100μs-999s |
| Flat Top Time Range | 100us-999s - 100μs-999s |
| Minimum Programming Time Step | 100μs - 100μs |
| Trigger Output & Enable | Isolated Low-voltage Trigger Signal (synchronized with output parameter changes), Single Step, Single Cycle, Single Trigger |
| Edit Mode | Import, Export, Store, Recall |
| Related Functions | Functions: Three-phase Unbalance, Sag, Interruption, LVRT/HVRT, With Automation Interface |
| Operation Mode | Run, Stop - Macro Cycle (1000) + Nested Programming (9999) |
| Trigger Source | Local Software, External Hardware |
| Trigger Mode | Auto, Manual, External |
| Voltage Accuracy | ±0.1% F.S. |
|---|---|
| Frequency Accuracy | ±0.01% F.S. |
| Current Accuracy | ±0.2% F.S. |
| Active Power | ±0.3% F.S. |
| Apparent Power | ±0.3% F.S. |
| Wiring Code | 3pH+N+PE |
|---|---|
| Frequency (Hz) | 47-63 |
| Voltage Range (V) | 380±15% |
| Power Factor | 0.99 |
| Protection Functions |
|
|---|---|
| Communication Interfaces |
|
| External Interlock |
|
| Trigger Signals | Trigger: Input/Output |
| Control & Display | Local touchscreen control with remote PC monitoring Real-time display of voltage, current, power and operational trends |
| Insulation & Dielectric Strength | 10MΩ/DC500V; 3600VAC/1min |
| Cooling Method | Forced air cooling |
| Noise | ≤70dB |
| Operating Temperature | -10°C to +40°C |
| Relative Humidity | 10% to 90% RAH (non-condensing) |
| Operating Altitude | ≤2000m |
Discover the application and uses case of TITAN regenerative grid simulator following the DERs-riched modern energy landscape.
TITAN Grid Simulator can be integrated into an end-to-end testing topology for PV inverters and utility-scale solar PCS with the DC-side connected by a solar array simulator whie AC-side with TITAN connected for grid emulation and reproducing the utility grid. The setup is intended for verifying the solar energy source's consistency, DC-link stability and grid synchronization capability, along with LVRT/HVRT, frequency ride-through, phase jump, harmonic immunity, power quality, and anti-islanding performance under realistic PCC conditions.

Testing Topology with Grid Simulator Engaged for Testing Grid-Forming PV Inverters
TITAN Grid Simulator when being integrated with additional load cabinet can server for bidirectional grid interoperability testing with a high-power battery simulator connected to the validaetd PCS's DC-bus with programmable battery voltage, SOC, charge/discharge, and regenerative load conditions, while TITAN emulates the utility grid at the AC output. PCS is assessed for specifications including power conversion performance, grid resilience and capability of withstanding complex PCC conditions as specified by applicable regulations and standards.

Testing Topology for BESS Converter with Grid Simulator
MCS charging facility and systems are supposed to be assessed being tied to AC source where various grid conditions are reproduced for testing its resilience and charging efficiency. TITAN grid simulator, in such a case, TITAN functions together with an EV simulator for testing the MCS system from both AC and DC sides.
V2G testing scenario resembles to grid interoperability testing as other converter testing scenarios for DERs where the grid simulator sink power from the source with controllable active/reactive power control, voltage and frequency ride-through, harmonic immunity, load-step response, protection behaviour along with other electrical behaviours.

Testing Topology for EV Charging System with Grid Simulator
Discover how grid simulator integrated with RLC modelling functions facilitate the testing setup for anti-islanding without engaging complex deployment of RLC load banks.
Read the Note
Following grid outage a DER connected throug grid-forming inverter should be able to operate is supposed to conduct a "blackstart" for supporting the regional operation. Check our grid simulator streamlines the related testing.
Read the Note
Grid forming capability at PCC of inverters are getting more critical for DERs due to the increased requirements for grid interoperability for which grid code testing requires more complex closed-loop validation with PHIL.
Discover the Solutions
Understand what ride-through performance means in practice—depth, duration, recovery—and how laboratory grid emulation supports repeatable verification.
Read the Article
Learn practical anti-islanding verification methods, typical trip behaviors, and how controlled grid events improve test repeatability beyond live-grid trials.
Read the Article
Explore how real-time RLC models approximate grid impedance (SCR, X/R, Z(ω)) and why impedance emulation is essential for weak-grid and stability testing.
Read the Note
A technical overview of waveform synthesis, disturbance injection, and control loops used to reproduce real grid behavior for grid-tied DUT validation.
Read the Note
Understand how regenerative architecture recycles energy during high-power tests, improving lab efficiency and enabling longer duty cycles with lower operating cost.
Read the Note
Clarify what differentiates grid emulation from general AC sourcing—disturbance fidelity, sink/source behavior, impedance modeling, and compliance-oriented control.
Read the Note
Learn practical methods to generate controlled phase-angle and magnitude unbalance (including VUF concepts) for IEC 61000-4-27 style test workflows.
Read the Article
A fundamentals-first explanation of harmonics and why controllable harmonic injection matters when validating grid-tied converter behavior and immunity.
Explore the GuideIntegrated programming capability and modelling allow ActionPower's grid emulation platforms to replicate, through its FPGA circuit, real-world weak grid conditions of RLC impedance thus replacing the essentialness of RLC load banks and subsequently its thermal management and equipment ownership cost.
From detailed integration manuals to the latest firmware, our Download Center provides the technical depth required for high-precision power electronics development. Enhance your ActionPower systems today.

If you are looking for an automated test system to validate your products during development and research stages to make sure of their successful commercial launch, ActionPower will be at your disposal to study your specifications and requirements to provide either standard or customized testing solutions.
Interested in ActionPower's testing solutions and equipment and want to promote them in your market? Contact us to joint our global sales network to grow together as partners.
Professionalism is what we care about. Why not email us with your technical requirements fully explained rather than submitting a simple message so that we revert more proactively with detailed solutions?