Bus load guessing is a kind of power system load guessing, and the bus system load can be defined as the sum of the terminal load supplied by the main transformer of the substation to a relatively small power supply area, which is the refinement of the system load. Bus load guessing generally only carries out short-term load guessing, and the results are the basis of dynamic condition estimation, safety and stability analysis, reactive power optimization, and local control of plants and stations.
Method: According to the change law of the bus load itself and the load distribution, the former is to guess the load of the bus system by analyzing the load law of the bus system, and then correct the results, and the latter is to guess the system load to obtain the composite value of the system at a certain time, and then distribute it to each bus.
Features: In addition to guessing the active load, sometimes it is necessary to guess the martial power load. The load curves between different busbars are quite different. For example, the load curve of the bus with commercial load is smooth and regular, while the load curve of the steel industry is mostly zigzag, and the load change trend is not obvious. The load curves between different busbars are quite different. For example, the load curve of the bus with commercial load is smooth and regular, while the load curve of the steel industry is mostly zigzag, and the load change trend is not obvious.
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