Format: HTML | BibTeX | DC | EndNote | NLM | MARC | MARCXML
000000456 001__ 456
000000456 037__ $$aENY-ARTICLE-2015-363
000000456 041__ $$aeng
000000456 100__ $$aKolanko, J$$uWroclaw University of Technology
000000456 245__ $$aAC Power and Energy Measurements based on Physical Definitions
000000456 260__ $$c2015-06-13
000000456 300__ $$a5p
000000456 500__ $$a2015 15 IEEE International Conference on Environment and Electrical Engineering, Rome, 10-13 June, 2015, pp. 1620-1625.
000000456 520__ $$aThe article presents the AC power measurements based on physical definitions as introduced by the draft German standard DIN 40110 in 1970 and its practical application as a power signal processor. The power processor is an electronic device allowing separation of the measured power signal (obtained from the multiplier circuit of voltages and currents) in two components: P+ and P- defined as the input power Pv and return power Pr. The separation is obtained by shifting the phase angle between the current and voltage. The value of return power is negative. Such separation is natural because it is based on physical phenomena of delivered, useful energy and harmful return energy flows. Return power is considered harmful because it causes heating of cables and sources of AC power (as transformers). Presented concepts and meters can be useful for accurate billing purposes for delivered electrical energy as well as for dynamic compensation of nonlinear loads to reduce the return power. Experiments realized using the power meter WL-1 synchro (operating according to physical definitions) confirms high percentage of return power for nonlinear loads, as AC powered LED light sources where the amount of return power can reach 70% of delivered power.
000000456 6531_ $$aactive power
000000456 6531_ $$auseful power
000000456 6531_ $$areturn power
000000456 6531_ $$adelivered power
000000456 6531_ $$apower meter
000000456 6531_ $$apower processor
000000456 6531_ $$adistorted voltage
000000456 6531_ $$adistorted current
000000456 6531_ $$aunsymmetrical loads
000000456 6531_ $$anonlinear loads
000000456 700__ $$aLeonowicz, Z$$uWroclaw University of Technology
000000456 700__ $$aLadniak, L$$uWroclaw University of Technology
000000456 700__ $$aMusz, P$$uWroclaw University of Technology
000000456 700__ $$aDudzik, J$$uInstitute of Computer Systems for Automation and
000000456 700__ $$aModzel, P$$uMeasurements
000000456 700__ $$aWierzbicki, Z$$uInstitute of Computer Systems for Automation and
000000456 700__ $$aKolanko, J$$uMeasurements
000000456 700__ $$aKolanko, J$$uInstitute of Computer Systems for Automation and
000000456 700__ $$aKolanko, J$$uMeasurements
000000456 8560_ $$fzbigniew.leonowicz@pwr.wroc.pl
000000456 8564_ $$uhttp://zet10.ipee.pwr.wroc.pl/record/456/files/$$zAccess to Fulltext
000000456 909CO $$ooai:zet10.pwr.wroc.pl:456$$pglobal
000000456 980__ $$aARTICLE