US 12,134,569 B2
Dielectric barrier discharge for ballast water treatment using optimized voltage shape control
Frank Kassubek, Rheinfelden (DE); Jan Carstensen, Waldshut-Tiengen (DE); Seila Rodriguez-Vilches, Thalwil (CH); Torsten Votteler, Niederrohrdorf (CH); and Enea Bianda, Baden (CH)
Assigned to ABB Schweiz AG, Baden (CH)
Appl. No. 17/298,183
Filed by ABB Schweiz AG, Baden (CH)
PCT Filed Dec. 13, 2019, PCT No. PCT/EP2019/085087
§ 371(c)(1), (2) Date May 28, 2021,
PCT Pub. No. WO2020/120741, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 18212652 (EP), filed on Dec. 14, 2018.
Prior Publication US 2022/0119275 A1, Apr. 21, 2022
Int. Cl. C02F 1/00 (2023.01); C02F 1/46 (2023.01); C02F 103/00 (2006.01)
CPC C02F 1/008 (2013.01) [C02F 1/4608 (2013.01); C02F 2103/008 (2013.01); C02F 2201/46 (2013.01); C02F 2209/36 (2013.01); C02F 2209/40 (2013.01); C02F 2209/44 (2013.01); C02F 2303/04 (2013.01); C02F 2305/023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A controller for controlling a fluid treatment by a Dielectric Barrier Discharge system, the controller comprising: a control unit and a monitoring system, the monitoring system including one or more sensor devices, the one or more sensor devices being configured to monitor the strength of an effect caused by a discharge created by the Dielectric Barrier Discharge system, and to transmit sensor data indicative of the strength of the effect to the control unit, wherein the one or more sensor devices are configured to monitor at least one of an amount of generated plasma, a current flow, a voltage, a charge, chemical agents, a flow of a fluid, a time duration of a discharge, and a biological status of a discharge, wherein the biological status includes detecting living organisms in the fluid inflowing and outflowing in the Dielectric Barrier Discharge system, wherein the control unit is configured to be operatively coupled to a high-voltage pulse generator of the Dielectric Barrier Discharge system for controlling the generation of high-voltage pulses by the high-voltage pulse generator, wherein at least one of the one or more sensor devices is configured to monitor an occurrence of a back discharge, and wherein the control unit uses the sensor data to adapt a pulse control signal configured to adjust the Dielectric Barrier Discharge system so that a back discharge overlaps with a falling edge of at least one of the high-voltage pulses.