Improved network analysis by using hourly meter values

摘要

Vattenfall Distribution Sweden has since 2003 built up an AMR/AMI-platform including remote controlled smart meters. The main reason for the installation has been to automate the meter value collection process and support the customer with bills based on actual consumption. Based on this, Vattenfall has taken the next step and uses the AMR information in new areas. Business Cases have been defined and presented in the “AMR+” project report (2007–12–12). Two of the business cases in the report have been studied in this project. They are: — BC2 “Power Quality Measurements/Net analysis” is about using AMR data in network planning. — BC3 “Net losses” is about better control and supervise the network losses by measure the energy both in the secondary substations and on customer sites. The load at customers site are today not align with the past and are also in general unknown and will in the future be more complex regarding EV (electrical vehicle) and PV (photo voltaic). Network calculations will then be more important for distribution companies in order to optimize the grid and deliver acceptable power quality.