An Uninterruptible Power Supply with Reactive Power Compensation and Active Filtering Functions
A technology of source filter and power supply, which is applied in active power filtering, reactive power adjustment/elimination/compensation, emergency power supply arrangement, etc., and can solve problems that affect the service life of UPS equipment, energy waste, and reduce energy utilization. Achieve the effects of improving power quality, improving conversion efficiency, and improving utilization
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[0038] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0039] In order to improve conversion efficiency and improve power supply quality, the uninterruptible power supply of this embodiment proposes a new circuit topology, such as figure 2 As shown, it includes mains input terminal VIN, load output terminal VOUT, active filter APF, reactive power compensator SVG, converter, centralized controller, double switching device KD and battery BAT and other main components. Wherein, the mains input terminal VIN is used for connecting to an external power grid and connecting to an AC mains. Inside the uninterruptible power supply, the mains input terminal VIN can be connected to the double switching device KD through the main power transmission line, and then connected to the load output terminal VOUT through the double switching device KD. The AC mains connected to the power input terminal VIN is transm...
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