Low-voltage ride-through master control pretest equipment

• Main Authors: SU XIAOWEI, LI XINQUAN, PEI LIYAN, CAO ZHEMING, HAO XIANGFEI, HUANG DIANJUN
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2014
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The utility model belongs to the technical field of wind generating set master control test, and specifically relates to low-voltage ride-through master control pretest equipment. The equipment comprises two main breakers K1 and K2, wherein the K1 is arranged on the 1 phase of the three-phase power supply of a wind generating set, and the K2 is arranged on the 2 phase of the three-phase power supply of the wind generating set; also comprises a main controller PLC, two relays K3 and K4, wherein the relay K3 controls the main breaker K1, the relay K4 controls the main breaker K2, and the main controller PLC controls the relay K3 and the relay K4; and the power supply of the low-voltage ride-through master control pretest equipment is a UPS. The equipment can carry out a pretest on the fault ride-through function of the master control system of a wind generating set, finds out the shortcomings in advance, and greatly saves costs of low-voltage ride-through tests. The structure of the equipment has the advantages