DISTRIBUTED MEASUREMENT STATION FOR THE EVALUATION OF THE IMPACT OF POWER ELECTRONIC EQUIPMENT ON THE POWER QUALITY OF ELECTRICAL DISTRIBUTION NETWORK
Abstract
The quality of the electrical power supply is increasingly becoming a central topic of discussion. The interference sources in the mains are caused by electronic power control with non-linear components that are used more frequently (e.g. PCs and industrial systems with speed-controlled drives), also in domestic appliances (e.g. television sets, economy lamps). High order harmonics, voltage fluctuations and high frequency disturbances with slew-rates of some microseconds or less can be mentioned as examples. In some cases the frequency and width of these voltage variations can produce a physiological irritating phenomenon due to luminance fluctuations of the lighting (flicker effect). These electromagnetic disturbances can cover a large interval of frequencies and can be present in industrial, domestic as well as commercial systems. Therefore in the last years the monitoring of the quality of supply networks has become an issue of international interest. A low-cost distributed measurement system, which allows power supply quality to be monitored in large industrial environments, is then proposed in this work. The paper also goes on to discuss the problem of the characterization of the power monitoring systems, presenting the results obtained with our prototype.
Event details
- Event
- TC4 Symposium 2001
- Technical Committee
- TC4
- Place
- Lisbon, PORTUGAL
- Time
- 13 September 2001 - 14 September 2001