Title :
MV Grid Reactive Power Compensator Based on a Four Level NPC Converter
Author :
Almandoz, Gaizka ; Abad, Gonzalo ; Zamakona, Izaskun ; Telleria, Mikel ; Zulaika, Mikel ; Pazos, Francisco Jose
Author_Institution :
Fac. of Eng., Mondragon Univ.
fDate :
Aug. 30 2006-Sept. 1 2006
Abstract :
The present research study is focused on the design, development and validation of a device based on multilevel converter for medium voltage distribution networks. It regulates the reactive power exchanged with the grid (up to 3 MVAR), allowing to achieve the following objectives: Network voltage regulation, reactive power compensation and power factor control. The device is composed by an IGBT based 4 level NPC (neutral point clamped) converter. The adopted modulation strategy is the space vector modulation and it takes into account the bus capacitor voltage balancing. The reactive power regulation will be carried out by a vector control technique. The correct behavior of the electronic system connected to a radial distribution network is validated in simulation. Firstly the behavior of the system is analyzed under normal operation conditions. After that, its robustness is analyzed when sudden network voltage changes occur
Keywords :
insulated gate bipolar transistors; power convertors; power distribution control; power grids; reactive power control; static VAr compensators; voltage control; IGBT; MV power grid; NPC converter; bus capacitor voltage; neutral point clamped converter; power factor control; radial distribution network; reactive power compensator; reactive power regulation; space vector modulation; voltage regulation; Capacitors; Control systems; Design engineering; Insulated gate bipolar transistors; Inverters; Medium voltage; Network topology; Reactive power; Reactive power control; Voltage control;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International
Conference_Location :
Portoroz
Print_ISBN :
1-4244-0121-6
DOI :
10.1109/EPEPEMC.2006.4778391
