PowerFactory Monitor

Introduction

Unbundling of electricity supply systems and the introduction of new technologies in all areas of generation, transmission and distribution has made power system operation more complex. Supervision of generator performance according to Grid Codes and Connection Conditions, the stability supervision of large transmission networks at specific locations, verification of power quality criteria in distribution as well as the determination and analysis of key system parameters has generated the need for power system monitoring and grid supervision beyond classical fault recording and SCADA based trending systems. Under those aspects, wide area monitoring (WAM) via phase measurement units (PMU) is just one special feature out of all monitoring applications.

The PowerFactory Monitor fully integrates with DIgSILENT PowerFactory software offering easy access to recorded data, analysis of trends, verification of system upset responses and test results.

Typical PowerFactory Monitor Applications

• Generation outage, load rejection and system frequency response analysis;
• Voltage stability monitoring and steady-state instability supervision
• Power oscillation detection and analysis
• System frequency control supervision, analysis and classification
• Tie-line power exchange and network control characteristics
• Control performance supervision and identification
• Voltage dip classification and analysis
• Power quality monitoring
• Load parameter identification
• Supervision of Connection Conditions and Ancillary Services
• Frequency response tests of primary and secondary controllers;
• Wide Area Monitoring (WAM) via coordinated Phasor Measurement Units (PMU)

In addition to on-line grid supervising functions, the PowerFactory Monitor is an excellent high-end general purpose measurement instrument for all kind of plant tests typically performed to support device and plant modelling as well as parameter identification to allow for precise power systems simulation tasks.

Among these applications are:

• Generator, motor and general feeder load tests and parameter identification
• Power plant measurements and identification (AVR, exciter, PSS, turbine, boiler, hydraulic systems)
• Determination of wind turbine characteristics and control behaviour
• Optimal tuning of Power System Stabilizers (PSS)

The PowerFactory Monitor interacts perfectly with the DIgSILENT power system analysis software PowerFactory featuring seamless integration of system and plant tests, plant modelling and parameter identification.