Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Heikki Tuusa"'
Autor:
Heikki Tuusa, Jenni Rekola
Publikováno v:
Tampere University
Autor:
Heikki Tuusa, A.S. Mäkinen
Publikováno v:
Renewable Energy and Power Quality Journal. :631-636
The fault ride through (FRT) of doubly fed induction generator (DFIG) is studied in this paper. Two different FRT strategies are compared. First strategy uses only active crowbar to protect the turbine and the second strategy uses transient flux comp
Publikováno v:
EPE Journal. 20:49-56
Publikováno v:
IEEE Transactions on Industry Applications. 44:1227-1238
This paper concentrates on a solution for the voltage flicker problem caused by a resistance spot welding process. Resistance spot welding is characterized by high currents lasting for a few mains voltage periods and followed by idle time lasting sev
Publikováno v:
2014 16th European Conference on Power Electronics and Applications.
Autor:
Heikki Tuusa, Jenni Rekola
Publikováno v:
2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014.
This paper reports on an investigation of power losses of converters and amorphous core AC-filter inductors for a bipolar 750 V low voltage direct current (LVDC) distribution network, using electrical and calorimetric measurements. The LVDC network i
Publikováno v:
2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).
This paper presents an analysis of power losses in 2.1 MVA static synchronous compensator (STATCOM) devices and STATCOMs with integrated energy storage (ESTATCOM). The analysis was carried out by means of computer simulations, with the main focus on
Autor:
Antti Virtanen, Heikki Tuusa
Publikováno v:
2012 IEEE Energy Conversion Congress and Exposition (ECCE).
This paper presents a performance comparison between a conventional STATCOM and a STATCOM with an integrated energy storage (ESTATCOM), within a low voltage stone crusher application. The systems are compared in terms of supply grid current rating mi
Autor:
Panu Lauttamus, Heikki Tuusa
Publikováno v:
2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).
This paper studies model-based cascade control of three-level STATCOM operating with low switching frequency. Due to low switching frequency it is difficult to achieve desired damping of switching current harmonics with a typical LCL-filter structure
Publikováno v:
2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).
This paper presents efficiency measurements for a 125 V/63 F supercapacitor module (SC) and a 96 V/90 Ah lithium-ion (li-ion) battery system as a function of chargedischarge current frequency. The result would be useful in the design of efficient pow