ABSTRACT: The demand for high-voltage and high-power power electronics devices, especially for the next generation electrical ship system, has increased rapidly these years. The three-phase three-level neutral point clamped (NPC) rectifier attracts more and more engineers' attention due to it has many advantages: sinusoidal input current which contains low harmonics, unity power factor, bidirectional power flow, low voltage and switching loss for each switch and so on. It could potentially provide DC power to medium voltage DC distribution system on ships. A NPC rectifier system is introduced in this thesis and the hardware test bed for validating is built successfully. Base on the topology of NPC rectifier, the PWM math model in ABC stationary frame is set up first. In order to obtain constant control variables as in DC motor control, the NPC rectifier PWM math model in DQ0 reference frame is built. And then for design the control loop, the NPC rectifier average models are developed in both ABC stationary frame and DQ0 reference frame.
ABSTRACT: The demand for high-voltage and high-power power electronics devices, especially for the next generation electrical ship system, has increased rapidly these years.
Need for children protection in Indonesia; research.
Need for children protection in Indonesia; research.
Effect of nutrition on physical condition of manpower in Indonesia; proceedings of a meeting.
Oleh sebab itu, Kantor Menteri Negara KLH, dalam rangka pengembangan
kualitas fisik penduduk mengadakan suatu pertemuan ahli, khusus membahas
berbagai aspek yang ada kaitannya dengan masalah KFM. Disadari bahwa KFM
...
poksaon tetapi hendak-lah iman itu <J'~Qsaskan di-atas fikiran yang waras dan
bukan menerusi taklid bnta dan ikut-ikutan melulu dan tidak juga menerusi hawa
nafsu yang mendorona kerana sesuatu idaman nafsu yang mengguda.
Justin and Julie-Ann, hopelessly mismatched in love, are about to introduce their respective parents to each other over dinner - Justin's upper-crust alcoholic mother from Surrey and Julie-Ann's bigoted Yorkshire father and prim mother. Into this doomed scenario drops, literally, via the balcony upstairs and the river, Paige Petite, a former lap-dancer with suicidal tendencies and her thick, gun-toting minder who is employed by her violent boyfriend...
"RolePlay is part of the Damsels In Distress trilogy: a feisty young woman literally drops in on an engaged couple, whose parents are about to meet for the first time at a dinner party. A clash of cultures and families follows."--
Monitoring and evaluation of circular fund program through cooperative societies in Indonesia; research report.
Monitoring and evaluation of circular fund program through cooperative societies in Indonesia; research report.
Regulation of Indonesian Minister of Cooperatives, Small and Medium-Scale Enterprise on development of workplace for vocational education centers in rural areas of Indonesia.
Regulation of Indonesian Minister of Cooperatives, Small and Medium-Scale Enterprise on development of workplace for vocational education centers in rural areas of Indonesia.
