MCFC/燃气轮机联合发电系统的最小二乘支持向量机方法建模

分析了影响熔融碳酸盐燃料电池(MCFC)/燃气轮机(GT)联合发电系统工作温度的重要因素,在多个变量中选择了燃料气和空气流量作为MCFC工作温度的控制量;选择燃料气利用率和燃烧室附加燃料流量作为燃气轮机透平初温的控制量.在此基础上,推导了最小二乘支持向量机(LS-SVM)用于函数估计的算法,并将该算法用于建立联合发电系统的工作温度控制模型.实验结果表明,LS-SVM建模方法具有建模精度高、计算速度快的优点,适合于实时控制的情况.

Modeling of Combined MCFC/Gas Turbine Plant Based on Least Square Support Vector Machines

The factors which affect the operating temperature of combined molten carbonate fuel cell(MCFC)/gas turbine(GT) plant mostly were analyzed,the flowrate of fuel and air was chosen to control the operating temperature of MCFC;the fuel utilization and fuel flowrate to combustor were chosen to control the turbine inlet temperature.The least square support vector machines(LS-SVM) algorithm for function estimation was put forward and applied to set up models of the combined system.The simulation result shows that the proposed modeling method has high accuracy and computes fast.