Title :
Digital control scheme of single-phase uninterruptible power supply
Author :
Okada, Shuhei ; Nunokawa, Tomoyasu ; Takeshita, Takaharu
Author_Institution :
Dept. of Comput. Sci. & Eng., Nagoya Inst. of Technol., Nagoya, Japan
Abstract :
This paper presents the digital control scheme of a single phase uninterruptible power supply (UPS). In order to obtain fast response in the current control, the authors propose the digital control scheme based on the instantaneous values. The inverter of the UPS is connected to the load in parallel to reduce the loss of the UPS. The controller is constructed by a DSP. The control schemes in all of the operations of the UPS are described. All operations of the UPS using the proposed control scheme have been verified by experiments.
Keywords :
digital control; electric current control; invertors; uninterruptible power supplies; current control; digital control scheme; inverter; single-phase uninterruptible power supply; Control systems; Digital control; Inverters; Power generation; Power quality; Power supplies; Power system interconnection; Switches; Uninterruptible power systems; Voltage;
Conference_Titel :
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location :
Incheon
Print_ISBN :
978-1-4244-2490-0
Electronic_ISBN :
978-1-4244-2491-7
DOI :
10.1109/INTLEC.2009.5351849
