基于功率反馈模型的直流变压器电压平衡控制方法  

Voltage Balanced Control Method of DC Transformer Based on the Power Feedback Model

作　　者：高振兴 GAO Zhenxing(State Grid Guyuan Power Supply Company,Guyuan 756000,China)

机构地区：[1]国网固原供电公司,宁夏固原756000

出　　处：《通信电源技术》2023年第2期71-73,共3页Telecom Power Technology

摘　　要：为了保证直流变压器输出电压的稳定性,设计基于功率反馈模型的直流变压器电压平衡控制方法。将直流变压器运行中的实时功率作为参照,利用功率反馈模型计算变压器输出电压。对比输出电压与额定电压,识别变压器运行工况。设定直流变压器运行轮换周期,建立轮换电容电压控制目标函数。将直流变压器划分为闭锁状态与运行状态,实现多状态下直流变压器电压平衡主动控制。对比实验结果证明,该方法可以避免变压器运行出现失衡,提高输出电压的稳定性,实现对电压的平衡控制。In order to ensure the stability of DC transformer output voltage,a voltage balance control method of DC transformer based on power feedback model is designed.Taking the real-time power of DC transformer as reference,the output voltage of transformer is calculated by power feedback model.Compare the output voltage with the rated voltage to identify the operating conditions of the transformer.Set the rotation period of DC transformer operation and establish the objective function of alternating capacitor voltage control.The DC transformer is divided into locked state and running state,and the active control of voltage balance of DC transformer in multi-state is realized.The comparative experimental results show that this method can avoid the unbalance of transformer operation,improve the stability of output voltage and realize the balanced control of voltage.

关 键 词：功率反馈模型 电压平衡控制 直流变压器 运行工况 

分 类 号：TM4[电气工程—电器]