Energy feedback and harmonic wave passive compensation system applicable to commutation device
A technology of energy feedback and rectification device, which is applied in the directions of reactive power compensation, reactive power adjustment/elimination/compensation, output power conversion device, etc. problems, to achieve good economic and social benefits, increase realizability and reliability, and improve energy utilization
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[0023] The system of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0024] The rectification device applicable to the system of the present invention is connected sequentially by the power grid 3 , the frequency converter 5 of the uncontrollable diode rectification device and the load 6 one by one.
[0025] As shown in FIG. 1 , the energy feedback and harmonic reactive power compensation system of the present invention includes a power switch tube 7 , a control device 8 , a power three-phase bridge 9 and a filter device 10 . The negative output terminal of the diode rectified DC bus voltage is connected to the negative output terminal of the DC bus voltage of the system in this case.
[0026] The anode of the power switch tube 7 is connected to the positive output end of the DC bus voltage of the uncontrollable diode rectifier 4, and its negative pole is connected to the positive pole of the DC bus voltage of th...
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