Szczegóły publikacji

Opis bibliograficzny

Autorzy (3)

• Ruszczyk Adam
• Kóska Krzysztof
• AGHJanisz Konrad

Słowa kluczowe

Dane bibliometryczne

ID BaDAP	104409
Data dodania do BaDAP	2017-03-09
Tekst źródłowy	URL
DOI	10.1109/ISNCC.2015.7174699
Rok publikacji	2015
Typ publikacji	materiały konferencyjne (aut.)
Otwarty dostęp
Konferencja	12th International School on Nonsinusoidal Currents and Compensation

Abstract

This paper describes a new concept of a three phase switch dedicated for low voltage capacitor bank for reactive power compensation (RPC). The switch combines electromagnetic relay with a solid-state valve. In contrast to state-of-the-art solution where thyristors are used, the proposed device utilizes fully controllable IGBT transistors. IGBT gives possibility to turn-on the switch without inrush current at the voltage zero-crossing, and moreover, turn-off in a moment which ensures that capacitors in all phases are discharged and there is zero voltage across its terminals. This solves well known phenomena of thyristor based solutions, where an increased voltage stress for a switch and capacitor exists. The advantage of the proposed circuit is that the capacitor bank can be turned on immediately after its disconnection. As a result, response time of reactive power compensation system can be significantly shortened. Reactive power compensator's (RPC) capacitors are often dealing with distorted grid voltages. Therefore the detuning inductors are required to cut-off higher harmonics currents. It creates a problem for the proposed hybrid switch with interrupting inductive currents. Paper describes structure of hybrid switch and its operation with capacitor bank and detuning inductor. Descriptions are verified by laboratory model measurements.

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