IPSA is a computer aided design program developed for power system design and operation applications. It contains advanced algorithms for both load flow and fault level calculations, coupled with well tested models of power system components. Now IPSA is offering these core algorithms in engine form for use in areas such as SCADA, EMS, or any application requiring load flow or fault level analysis.

Load Flow Engine

The IPSA load flow algorithm is based on the Fast Decoupled Newton-Raphson algorithm and includes the following features:

• Busbar voltage profiles and phase angles
• Real and reactive power flows
• Automatic transformer tap-changing
• Voltage and reactive power constraints
• Line and plant overload reporting, including multiple line ratings
• Split system representation
• AC / DC interconnections

Fault Analysis Engine

The IPSA Fault Analysis engine provides a range of fault calculation options for single-phase through to three-phase fault calculations. Complete synchronous and induction machine models are also incorporated with AVR action to allow the highest degree of accuracy in these calculations. A user-selectable industry standard compliance is available for both the G74 and IEC909 standards. The Fault Analysis engine includes the following features:

• Calculation for AC and DC fault current decay
• RMS, DC and peak fault current at all branch line and busbars
• Detailed representation of alternating and unidirectional fault current components

Optimal Power Flow Engine

The Optimal Power Flow engine is currently under development.

Language Bindings

• Visual Basic, including VBA
• C/C++
• Fortran

Platforms

• Windows 98, 2000, XP etc
• Solaris 7 and 8
• Linux 2.4 and other Unix operating systems

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