Building block heat overlap type active electric power filtering device

• Main Authors: LIU YUE, CHENG XINDE, YANG JIANWU
• Format: Patent
• Language: English
• Published: 29.10.2014
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

Disclosed is a building block heat overlap type active electric power filtering device. The device comprises a controller, an IGBT power module, a reactor, a contactor, an electrolytic capacitor, a resistor, an isolation transformer, a DC power supply, a high frequency filter, a ventilation heat radiation unit, a fuse, a lightning arrester, a sub-breaker, and a connector. A plurality of building block heat overlap type active electric power filtering devices can be in parallel connection through RS485 cables, utilizing the heat overlap manner. The building block heat overlap type active electric power filtering device is disposed in a three-phase AC power supply line of a load. The main breaker is connected to the three-phase AC power supply line of the load, and a current transformer accessed to the electric network collects a three-phase current signal at the load side, so that harmonic wave of a power supply of the load is effectively filtered, and the building block heat overlap type active electric power filtering device achieves the functions of compensating reactive power and correcting three-phase unbalance.