前馈信号的引入使炉温控制具有超前决策功能，提高了智能程度。
The use of feedforward signal makes the furnace temperature control have the leading decision function and improve the degree of intelligence.
此方案以建立一个参考模型来得到前馈信号，从而避免了传统方案的缺点。
In this method, the feedforward signal is obtained through establishing a reference model, so that the defect of traditional method can be avoided.
前馈信号同时包含了电网电压和负载的信息，通过快速调节交流侧进线电流，使得系统功率平衡得以维持。
Feedforward signal includes the information of both grid voltage and DC side load. Power balance between the input and output can be maintained by adjusting AC side currents.
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