A Variable Voltage Level Current Disturbance Source
A technology of voltage level and current disturbance, which is applied to the components of electrical measuring instruments, measuring electrical variables, and AC networks to reduce harmonics/ripples, etc. It can solve problems such as single voltage levels, improve control accuracy, and reduce construction costs. Cost, the effect of reducing the output ripple voltage
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[0024] The present invention will be described in detail below with reference to the drawings and specific embodiments:
[0025] Such as figure 1 , The present invention provides a current disturbance source of distribution network with variable voltage level, including charging resistor R1 and bypass switch KM-BP, rectifier transformer tap switching contactor KM1, KM2...KMn, rectifier Transformer, back-to-back power unit and output filter unit; the primary winding of the rectifier transformer is a multi-tap winding, the secondary winding of the rectifier transformer is a multi-winding structure, each secondary winding is connected to a back-to-back power unit, and the current disturbance source input is connected to three-phase AC charging system, the bus voltage value is fixed; the current disturbance source output is connected to a three-phase variable voltage system, the bus voltage value is not fixed, and can be divided into several levels.
[0026] Such as figure 2 As shown,...
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Abstract
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