| 摘要 |
A method for consumer substation voltage control is based on control of a transformer ratio of a consumer substation transformer. According to the method the transformer ratio is varied depending on load buses voltage deviation of the consumer substation with the aid of a correction signal. The correction signal is generated by measuring load buses analogue voltage of the consumer substation, thereafter measured voltage is converted to a digital signal which is transformed via phasification to a fuzzy linguistic variable from a plurality of linguistic variables of “load center voltage” input value. Next, according to decision rule base, the linguistic variable from a plurality of magnitudes of linguistic variable of “correction signal” output value is placed in correspondence with the obtained fuzzy linguistic variable. The obtained fuzzy linguistic variable is converted to crisp value of “correction signal” using dephasification; thereafter “correction signal” is used to control an apparatus for transformer ratio varying, with aid of which the transformer ratio of the consumer substation transformer is varied. |
