Parameter identification of electrical power quality by a new synchronisation method and an innovative measuring instrument

The measuring and analysing of the quality and efficiency of electrical power usage is an important topic today and in the future. Electrical energy measurement must be synchronised with power frequency to analyse integer cycles and provide accurate power quality analysis. In this paper a new synchronisation method is presented which is realised from the software side without using PLL (Phase-Locked Loop). The paper also deals with real-time data processing, which is achieved with a multi-core personal computer (PC). In this way the power of the modern PC can be exploited in the area of electrical energy measurement. A measuring device was developed to implement the new synchronisation method and exploit the power of multi-core CPUs.

► A new synchronisation method was implemented to provide accurate power quality analysis. ► The new synchronisation method was installed in a measuring system. ► Software was implemented in a multithread environment to exploit the power of multi-core computers. ► The measuring system was successfully tested in an industrial environment.