In this article,an approach for economic performance assessment of model predictive control(MPC) system is presented.The method builds on steady-state economic optimization techniques and uses the linear quadratic Gau...In this article,an approach for economic performance assessment of model predictive control(MPC) system is presented.The method builds on steady-state economic optimization techniques and uses the linear quadratic Gaussian(LQG) benchmark other than conventional minimum variance control(MVC) to estimate the potential of reduction in variance.The LQG control is a more practical performance benchmark compared to MVC for performance assessment since it considers input variance and output variance,and it thus provides a desired basis for determining the theoretical maximum economic benefit potential arising from variability reduction.Combining the LQG benchmark directly with benefit potential of MPC control system,both the economic benefit and the optimal operation condition can be obtained by solving the economic optimization problem.The proposed algorithm is illustrated by simulated example as well as application to economic performance assessment of an industrial model predictive control system.展开更多
Based on three major theories, the Chinese local officials＇ promotion incentive could be influenced by economic performances, political relationships, and financial performances. However, there were some researchers ...Based on three major theories, the Chinese local officials＇ promotion incentive could be influenced by economic performances, political relationships, and financial performances. However, there were some researchers focusing on these promotion mechanisms and then they got different outcomes. This paper achieves the goal for exploring the influence factors of officials＇ promotion by using OLS empirical test. From collecting the data of Chinese local officials and cities＇ economic conditions, we find that economic performances and political relationships can have a significant effect on officials＇ promotion, but financial performances cannot have this effect. And the experiences and lesson of this research have some reference for exploration of Chinese local officials＇ promotion incentive.展开更多
基金Supported by the National Creative Research Groups Science Foundation of China （60421002） and National Basic Research Program of China （2007CB714000）.
文摘In this article,an approach for economic performance assessment of model predictive control(MPC) system is presented.The method builds on steady-state economic optimization techniques and uses the linear quadratic Gaussian(LQG) benchmark other than conventional minimum variance control(MVC) to estimate the potential of reduction in variance.The LQG control is a more practical performance benchmark compared to MVC for performance assessment since it considers input variance and output variance,and it thus provides a desired basis for determining the theoretical maximum economic benefit potential arising from variability reduction.Combining the LQG benchmark directly with benefit potential of MPC control system,both the economic benefit and the optimal operation condition can be obtained by solving the economic optimization problem.The proposed algorithm is illustrated by simulated example as well as application to economic performance assessment of an industrial model predictive control system.
文摘Based on three major theories, the Chinese local officials＇ promotion incentive could be influenced by economic performances, political relationships, and financial performances. However, there were some researchers focusing on these promotion mechanisms and then they got different outcomes. This paper achieves the goal for exploring the influence factors of officials＇ promotion by using OLS empirical test. From collecting the data of Chinese local officials and cities＇ economic conditions, we find that economic performances and political relationships can have a significant effect on officials＇ promotion, but financial performances cannot have this effect. And the experiences and lesson of this research have some reference for exploration of Chinese local officials＇ promotion incentive.
