Unbalanced Load Flow

Unbalanced Network Load Flow

Unbalanced Network Load Flow Analysis

ETAP Unbalanced Network Load Flow Analysis software empowers engineers to easily model your unbalanced system, incorporating a detailed representation of component unsymmetrical characteristics, while providing accurate, reliable, and insightful results that describe your system's unbalanced operation conditions and open phase conditions.

The Unbalanced Network Load Flow Analysis program efficiently solves unbalanced networks and provides thorough results including phase and sequence values of voltage levels, power flows, current distribution, and unbalance indices throughout the electrical system. Automatic alarms / warning are incorporated to compare limits and duties for the correct design and operation of power system apparatus.

Additionally, the module offers comprehensive reports, a diverse set of visualization tools, and an efficient result analyzer to enhance engineers' analysis efficiency.

A unified AC/DC load flow is offered as a separate capability, enabling engineers to seamlessly analyze both AC and DC networks simultaneously.

Key Features & Capabilities

Current-injection method
Single-phase & unbalanced 3-phase modeling
Swing, voltage regulated, & unregulated power sources
Capability curve for renewable sources
Transformer load tap changers (LTC / regulators)
Machine/transformer various grounding types
Modeling of transformer winding connections
Modeling of transformer buried delta winding
Detailed modeling of three single-phase transformer
Transmission line coupling between phases of one line & multiple lines
Loads of constant power, constant impedance & constant current
Networks under VFD - no-load, parallel and meshed network
Machine internal sequence impedances
Unbalanced & nonlinear load modeling
Auto-adjust control equipment settings, e.g. voltage regulator, switched capacitor, STATCOM, active harmonic filter, etc.
Phase & sequence voltage, current, & power
Voltage & current unbalance factors
Single open phase and double open phase fault insertion and simulation
Unbalanced power flow using real-time operating data from State Estimation
Auto-Run feature when system or study setting is changed
Conduct unlimited “what-if” studies within one database 100,000+ bus capability
Multi-CPU calculation capability for blazing calculation speeds for complete network
Optimized performance for solar panel and inverter control, now converges better and faster
Automatic device evaluation
User-defined python report in report manager
Three and single-phase systems in plot analyzer
Advanced user-definable result analyzer for worst-case analysis
Enhanced GIS calculation and display

The Unbalanced Network Load Flow module can operate in an offline mode utilizing user defined loading and generations. The application also interfaces with the online mode utilizing the status of the real-time system and estimated loading as well as voltages from the state and load estimation calculations in Real-Time mode.

A robust and efficient power flow solution method must be able to model special features of distribution systems with sufficient accuracy. With this application, you can easily model your unbalanced network system with detailed representation of component unsymmetrical characteristics. Accurate and reliable results are available describing your system’s unbalanced operating conditions.