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A new self-recovery compensation and control strategy suitable for dynamic voltage regulator (DVR) supplied by DC-capacitor was proposed. Two compensation stages which were transient compensation stage and recovery compensation stage were included in the strategy. The maximum energy compensation strategy which could maximize the exchange active power between the equipment's DC-capacitor and its outside...
The minimum energy compensation strategy and its characteristic for Dynamic Voltage Restorer (DVR) considering the equipment's voltage limitation are discussed. The strategy when the injection voltage is under or especially above the voltage limitation is proposed. And the detailed expressions of the strategy which show that the compensation effect is influenced by three factors - magnitude of the...
In the field of geophysical exploration, one of effective methods to detect buried metal ores is multiple-frequency fusion electromagnetic excitation and its imaging. This technique needs to set a high-power artificial EM source in subsurface of the target area. To facilitate supply of such a large power, a constant current of high-voltage is necessary. However, some factors such as heterogeneities...
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