Software Technologies

Maintaining grid security is a fundamental requirement for power system operations and the reliable supply of electricity.

Traditionally, dynamic security assessment (DSA) of power systems attempts to ensure system security through analytical studies and simulations for a selected number of forecast system conditions and contingencies. This approach (off-line DSA) continues being used, although increasingly a new approach (on-line DSA) is needed to meet the challenging requirements of system operations in the new environment.

Powertech’s Software Technologies Department meets these needs with a comprehensive suite of power system analysis tools, with capabilities for both off-line and on-line DSA. 

The Department’s flagship product, DSATools™, incorporates leading-edge technologies for the modeling, design, and analysis of power systems. For off-line DSA, the programs may be used to conduct system design, planning, and operation studies involving thermal and voltage assessment, reactive power planning, stability assessment, and NERC compliancy studies.

The more advanced and unique applications of DSATools™, developed exclusively by Powertech, are for on-line DSA. In this mode, the software is connected directly to a power system's energy management system (EMS) and assesses the system security in continuous cycles. Using real-time captured system conditions, an on-line DSA system provides system operators with important information about system security limits, type of criteria violation, critical contingencies, and remedial actions needed to prevent system failures.  

The Software Technologies Department also works closely with Powertech’s Power Systems Studies Department, which conducts field testing of power equipment, simulation model validation, and power system studies around the globe. Using this up-to-date, real-world experience, the Software Department designs tools to address new technical problems as they emerge, such as low-frequency oscillations and sub-synchronous resonance, which arise as power systems operate closer to limits, integrate higher levels of renewable generation, and utilize more advanced solid-state technologies.