US 12,487,266 B2
System for testing electrical products in a closed circuit
Joaquim Lopez Mestre, Barcelona (ES); and Marta Berge Garcia, Barcelona (ES)
Assigned to CINERGIA POWER SOLUTIONS, S.L., Argentona (ES)
Filed by CINERGIA POWER SOLUTIONS, S.L., Barcelona (ES)
Filed on Oct. 16, 2023, as Appl. No. 18/380,337.
Claims priority of application No. P202230892 (ES), filed on Oct. 17, 2022.
Prior Publication US 2024/0125839 A1, Apr. 18, 2024
Int. Cl. G01R 31/14 (2006.01); G01R 1/20 (2006.01); G01R 31/01 (2020.01)
CPC G01R 31/01 (2013.01) [G01R 1/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An emulator system for testing an electrical product in a closed circuit, the system comprising:
a first power electronic structure to emulate a voltage source connectable to the input of the electrical product to be tested, wherein the first power electronic structure is a bidirectional power structure configured to emulate an alternating or direct current voltage source, which comprises a DC/AC inverter or a DC/DC converter connected in series with an inductive-capacitive passive output filter;
a second power electronic structure to emulate an electronic load connectable to the output of the electrical product to be tested, wherein the second power electronic structure is a bidirectional power structure configured to emulate an alternating or direct current electronic load, which comprises a DC/AC inverter or a DC/DC converter connected in series to an inductive-capacitive passive output filter;
a direct current bus connected between the first power electronic structure and the second power electronic structure, wherein the direct current bus only circulates DC current between the first power electronic structure and the second power electronic structure;
a power supply configured to be connected to a general electrical grid and power the direct current bus; and
a control module;
wherein once the electrical product to be tested is connected between the first power electronic structure and the second power electronic structure, a closed circuit is established in which the first power electronic structure consumes power from the direct current bus to test the electrical product and the second power electronic structure reinjects the power consumed into the direct current bus.