Energy feeding type electrical energy mass perturbance generating device
A power quality disturbance generation device technology, applied in the direction of measuring devices, measuring electrical variables, output power conversion devices, etc., can solve the problems of high cost, long test cycle, and difficulty in unifying test environment standards, so as to save electric energy and reduce required effect
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[0018] The accompanying drawings are embodiments of the present invention. The content of the present invention will be further described below in conjunction with the accompanying drawings:
[0019] The device includes a harmonic source 1, a feedback link 2, an intermediate DC capacitor 3, a control terminal 4, a first LCL filter link 5, and a second LCL filter link 6. The control terminal 4 is implemented by a DSP controller, which is based on user settings. A control signal is always generated to control the harmonic source part to generate current disturbances; the harmonic source 1 and the feedback link 2 are cascaded through a 3-phase intermediate DC capacitor to form an AC-DC-AC topology to realize energy feedback; harmonic source 1 AC The AC side of the feedback link 2 is connected to the power grid through the first LCL filtering link 5, and the AC side of the feedback link 2 is connected to the power grid through the second LCL filtering link 6.
[0020] 1. Harmonic sour...
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