Mitigating grid voltage harmonics using a line converter with active filtering feature

Autor:	Antti Tarkiainen, Riku Pollanen, Markku Niemela, Juha Pyrhonen
Rok vydání:	2004
Předmět:	Engineering Total harmonic distortion business.industry Applied Mathematics Filter (signal processing) Harmonics Distortion Electronic engineering Harmonic Electrical and Electronic Engineering business Active filter Negative impedance converter Voltage
Zdroj:	Electrical Engineering. 88:97-107
ISSN:	1432-0487 0948-7921
DOI:	10.1007/s00202-004-0261-3
Popis:	A line converter equipped with an LCL-line filter is used as an active filter directly compensating grid voltage harmonics. The control of four individual grid voltage harmonics is implemented using an individual control of corresponding harmonic line currents. The knowledge of the grid impedance is essential to efficient control of the grid voltage harmonics. To overcome the problem of an unknown grid impedance an identification method is used. The method uses the converter control system to measure the grid impedance at selected frequencies. The active voltage harmonic cancellation is tested with a 19 kVA line converter by compensating background voltage distortion and distortion caused by a nonlinear load.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f4d7959900603ec868b82c63b50af5b4 https://doi.org/10.1007/s00202-004-0261-3 Zobrazit plný text záznamu Full text from SpringerLink