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Three-phase electric load automatic balance algorithm

An automatic balancing and three-phase electricity technology, applied in the direction of reducing the asymmetry of the multi-phase network, eliminating/reducing the asymmetry of the multi-phase network, etc., to achieve the effect of good adaptability

Inactive Publication Date: 2016-03-16
GANXI POWER SUPPLY BRANCH STATE GRID JIANGXI ELECTRIC POWER +2
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a three-phase electric load automatic balance algorithm, solve the problems existing in the existing three-phase electric load balance strategy, provide an efficient and reliable solution, and introduce the combination of classic and modern technology in control theory The neuron PID algorithm realizes fast three-phase electrical load balance, and according to the grid load fluctuation state, adaptive regulator control parameters, quickly and reasonably adjusts the power supply of each phase, switches public positions according to user priorities, and maximizes the quality of power supply for single-phase users

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Embodiment Construction

[0025] A preferred embodiment of a three-phase electric load automatic balancing algorithm of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] combine Figure 1 to Figure 6 Show a specific implementation of a three-phase electric load automatic balancing algorithm of the present invention: as figure 1 As shown, the three-phase electric load automatic balance algorithm includes three parts: an adaptive filter module, an automatic balance algorithm module, and a load adjustment module. The workflow of the three-phase electric load automatic balance algorithm is as follows:

[0027] (1) Measure the voltage and current value of each phase line of the transformer and the voltage and current value of each load, and use the adaptive filter module to attenuate unnecessary interference and transient fluctuations;

[0028] (2) According to the characteristics of the deviation between each phase current of the transformer an...

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Abstract

The invention discloses a three-phase electric load automatic balance algorithm, and relates to the field of power supply control. The three-phase electric load automatic balance algorithm comprises an adaptive filtering module, an automatic balance algorithm module, and a load adjusting module, transient fluctuation interference of a power grid can be filtered, characteristic values such as three-phase electric amplitude, current, and changing trend thereof are extracted, the adjusting amount of electric load of each phase is calculated, the power supply priority of the load is fully considered, the load is adjusted with the smallest influence, and the optimal state of load balance is achieved.

Description

technical field [0001] The invention relates to the field of power supply control, in particular to a three-phase electric load automatic balancing algorithm. Background technique [0002] In the electricity consumption information collection system, the unbalance degree of three-phase current in some station areas is as small as 20%, and as high as 70% to 80%. According to the regulations, the three-phase load unbalance cannot be greater than 15%. The calculation formula is: maximum load-minimum load / Maximum load × 100%. The representative ones in the existing patent documents include: the distribution power balance scheme represented by the patent "on-line automatic power distribution method and device" with the patent application number of 201410254961.5. By measuring the voltage of each phase, the equipment is connected to the voltage On the highest phase, or to measure current, hook the device to the phase with the least current. [0003] Generally speaking, the lim...

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Application Information

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IPC IPC(8): H02J3/26
CPCY02E40/50
Inventor 罗丽萍简火金钟燕军吴瑜平吴云峰周骅
Owner GANXI POWER SUPPLY BRANCH STATE GRID JIANGXI ELECTRIC POWER
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