比较电压偏差及其变化率，查询模糊控制表，调节逆变脉宽，可实现电压及电流的理想控制。
According as compare of voltage deviation and its variable ratio, optimal control of voltage and current is realized with querying fuzzy control sheet and adjusting adverse variable pulse width.
根据模型约束目标正负偏差变量，计算了各级控制策略实现程度系数。
According to the positive and negative deviations of the obligatory objective, the realized degree coefficients are calculated for the different levels of control strategy.
通过变频器自动调整吊车速度，进行运动偏差补偿，从而实现了群吊控制系统的同步控制。
This method enables the frequency converter to adapt itself, and change the crane's speed, and then compensate the system's motion bias.
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