Now showing items 1-10 of 30
The improvement of system damping by grid integration of PV energy sources
The impact of static generators on power system small signal stability is evaluated by means of micro-synchrophasors collected in a distribution system using a class A Power Quality recorder that also functions as a Phasor ...
An overview of the application of phasor measurement units (PMUs) and network coherent data in an interconnected power network: a case for Namibia
This paper presents the technological background, the structure of a time-stamp for network coherent data and the emerging documentation on the data requirements for applications making use of network coherent data. ...
Modeling and validation of losses due to unbalanced loading of stand-alone generators
The goal of this paper is to evaluate the possibility of deriving a simple lumped electrical model of the additional losses in stand-alone synchronous generators due to unbalanced loading. An in depth analysis will reveal ...
Practical evaluation of voltage unbalance at a distribution transformer based on 50 Hz negative sequence active power
The paper investigates the measurement and propagation of voltage unbalance at a distribution transformer. The relations between unbalance factors in voltage and current with the direction of negative sequence fundamental ...
A practical evaluation of harmonic emission assessment
This paper reports an evaluation of harmonic emission assessment. The results obtained by the Harmonic Vector Method are correlated to the behavior of harmonic active power by means of synchronized measurements in a ...
On the development of a power quality benchmarking model
The development of a Power Quality (PQ) Benchmarking model is presented. Practical results are discussed to motivate the need of adding value to recorded PQ data by means of benchmarking PQ performance. The importance, ...
On the reporting of power quality
The reporting of power quality (PQ) requires consideration as different users of information on Quality of Supply (QoS) have different needs. Reporting on the compliancy of voltage regulation in terms of a PQ standard can ...
Towards PQ regulation in Southern Africa
This paper discuss the regulation of Power Quality (PQ) in Southern Africa from a user perspective
The application of modern technology in power quality management
Little business integration of power quality management (PQM) is forthcoming amongst electrical utilities all over Southern Africa. Restricted access to proper information is the main reason. A integration of tools, ...
Where is the power of the IEEE 1459-2010
The integration of the IEEE 1459-2010 power definitions with the IEC 61000-4-30 PQ standard is investigated. A Class A PQ instrument, which record network coherent data with an absolute time uncertainty of less than 100 ...