FANG Xian, TIE Zhixin, CUI Shiwen, et al. Model for predicting SCR flue gas denitration efficiency based on particle swarm optimization and twin support vector machine[J]. Thermal power generation, 2018, 47(1): 53-58.
FANG Xian, TIE Zhixin, CUI Shiwen, et al. Model for predicting SCR flue gas denitration efficiency based on particle swarm optimization and twin support vector machine[J]. Thermal power generation, 2018, 47(1): 53-58. DOI: 10.19666/j.rlfd.201705031.
In order to better analyze the nonlinear relationship between the denitration efficiency of coal-fired power plants and related factors
the twin support vector machine(TWSVM) was introduced as a classification framework. The particle swarm algorithm(PSO) was used to optimize the penalty factor and kernel function parameter of the TWSVM
and then the PSO-TWSVM model for predicting the SCR flue gas denitration efficiency was built up. Through extracting recent data of the power plant monitoring system and combining with three times standard deviation test and normalization method for data preprocessing
the training set and test set can be obtained. The simulation results show that
the maximum relative prediction error of the PSO-TWSVM model is no more than ±0.6%
and the average relative error is about ±0.3%
which proves the high efficiency of the model. In contrast with the SVM model
the PSO-TWSVM model not only improves the prediction accuracy