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    Power quality solution for intelligent distribution network in electric power industry

    2012/5/23??????view:
    Reactive power compensation
    The equipment through the real-time monitoring of the load reactive current component, the central controller accurately calculate the reactive current compensation properties (reactive current property in the distribution network is usually inductive reactive power and capacitive reactive power) and size, then output equipment instead of the same size and phase properties of reactive current and accurate to improve the power factor compensation.


    Harmonic control
    Harmonic control scheme is mainly aimed at large harmonic interference. The device monitors the load current in real time, and the central controller accurately extracts the number of harmonic current and the secondary current size after calculation, and eliminates harmonic pollution according to the output of the demand and the current of the same harmonic current and the opposite phase to be controlled.


    Three phase unbalance adjustment
    The three-phase unbalanced load regulation scheme for single-phase load is large and random occasions to open the equipment through the transformer load current sampling, the central controller calculates the need to adjust the unbalanced three-phase current size, then the current phase shift, realize three-phase current balance.


    Low voltage regulation
    When the voltage of the user side is lower than the normal value, the device will switch to the boost circuit when the voltage is below the normal value when the voltage is below the normal value. When the voltage is restored to normal, it will switch back to the regular power supply line when the voltage is restored to normal.


    Reactive power compensation + harmonic control + three phase unbalance adjustment
    The scheme is aimed at many problems at the same time, such as low power factor, harmonic interference and unbalanced three-phase load. The device deals with the three power quality problems at the same time by setting up the capacity allocation share and the priority of the three functions. The user can log on to the remote management system of power quality equipment and adjust the capacity distribution and priority in real time by on-line monitoring.


    Reactive power compensation + harmonic control + three-phase unbalance regulation + low voltage regulation
    The scheme is aimed at many problems at the same time, such as low power factor, harmonic interference, unbalanced three-phase load and low end user voltage in the distribution network. The device deals with the three power quality problems at the same time by setting up the capacity allocation share and the priority of the three functions. The user can log on to the remote management system of power quality equipment and adjust the capacity distribution and priority in real time by on-line monitoring.
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