Ignoring load characteristics and not considering user feeling with regard to the optimal operation of Energy Internet（EI） results in a large error in optimization. Thus, results are not consistent with the actual o...Ignoring load characteristics and not considering user feeling with regard to the optimal operation of Energy Internet（EI） results in a large error in optimization. Thus, results are not consistent with the actual operating conditions. To solve these problems, this paper proposes an optimization method based on user Electricity Anxiety（EA） and Chaotic Space Variation Particle Swarm Optimization（CSVPSO）. First, the load is divided into critical load, translation load, shiftable load, and temperature load. Then, on the basis of the different load characteristics,the concept of the user EA degree is presented, and the optimization model of the EI is provided. This paper also presents a CSVPSO algorithm to solve the optimization problem because the traditional particle swarm optimization algorithm takes a long time and particles easily fall into the local optimum. In CSVPSO, the particles with lower fitness value are operated by using cross operation, and velocity variation is performed for particles with a speed lower than the setting threshold. The effectiveness of the proposed method is verified by simulation analysis.Simulation results show that the proposed method can be used to optimize the operation of EI on the basis of the full consideration of the load characteristics. Moreover, the optimization algorithm has high accuracy and computational efficiency.展开更多
Objective To observe the protective effect of acupuncture-drug compound anesthesia with different frequency electroacupuncture（EA） on stress reaction in patients of pneumonectomy and to explore potential mechanisms....Objective To observe the protective effect of acupuncture-drug compound anesthesia with different frequency electroacupuncture（EA） on stress reaction in patients of pneumonectomy and to explore potential mechanisms.Methods Eighty patients scheduled for pneumonectomy were randomly divided into four groups,group A,B,C and D,20 cases in each group.General anesthesia and single lung protective mechanical ventilation were carried out in all the groups.Acupuncture was given at Hòuxī（后溪 SI 3）,Zhīgōu（支沟TE 6）,Nèiguān（内关 PC 6）,and Hégǔ（合谷 LI 4） 30 min before general anesthesia,and the acupuncture needles were connected with Han＇s acupoint nerve stimulator（HANS-200） in all the groups,but the acupuncture needles without needle bodies were pasted on the acupoints and EA was not given in the group A.2 Hz continuous wave,100 Hz continuous wave and 2 Hz/100 Hz EA were given in the group B,C and D respectively.The supplementary amount of anesthesia medicine,heart rate（HR） and mean arterial pressure（MAP） during pneumonectomy,and CD4^＋/CD8^＋ in venous blood before and one day after the surgery,and the contents of epinephrine（E） and cortisol（Cor） in plasma after entering the operating room and before turning out the operating room were detected.Results ① During the operation,supplementary amounts of Fentanyl in the group B and C were lower than those in the group A and D（P〈0.05,P〈0.01）.② The MAP in the four groups at tracheal intubation（T1） all were higher than those before anesthesia（T0）（all P〈0.01）,and the ascending extents in the group B,C and D were lower than that in the group A（all P〈0.01）;HR at T1 in the group A was higher than that at T0（P〈0.05）,while no significant change in the other groups（all P〈0.05）,and the ascending extents in the group B and D were lower than that in the group A（both P〈0.05）;MAP and HR at the other moments in all the groups were stable.③ CD4^＋/CD8^＋ in the group A after pneumonectomy was lower than that before the surgery（P〈0.05）,while no significant change in the other groups（all P〈0.05）.④ Contents of E and Cor after the operation were significantly increased in all the groups（all P〈0.01）,and the ascending extent of E content in the group D was lower than that in the group A（P〈0.05）;the ascending level of Cor in the group B and D was lower than that in the group A（P〈0.01）,and in the group B was lower that in the group C and D.Conclusion Acupuncture-drug compound anesthesia can attenuate the stress reaction so as to protect organs under the condition of less or same narcotic amount and can alleviate the fluctuation of MAP and HR at tracheal intubation and stabilize CD4^＋/CD8^＋ after pneumonectomy.Among them,2 Hz and 2 Hz/100 Hz EA have better effects.展开更多
文摘Ignoring load characteristics and not considering user feeling with regard to the optimal operation of Energy Internet（EI） results in a large error in optimization. Thus, results are not consistent with the actual operating conditions. To solve these problems, this paper proposes an optimization method based on user Electricity Anxiety（EA） and Chaotic Space Variation Particle Swarm Optimization（CSVPSO）. First, the load is divided into critical load, translation load, shiftable load, and temperature load. Then, on the basis of the different load characteristics,the concept of the user EA degree is presented, and the optimization model of the EI is provided. This paper also presents a CSVPSO algorithm to solve the optimization problem because the traditional particle swarm optimization algorithm takes a long time and particles easily fall into the local optimum. In CSVPSO, the particles with lower fitness value are operated by using cross operation, and velocity variation is performed for particles with a speed lower than the setting threshold. The effectiveness of the proposed method is verified by simulation analysis.Simulation results show that the proposed method can be used to optimize the operation of EI on the basis of the full consideration of the load characteristics. Moreover, the optimization algorithm has high accuracy and computational efficiency.
基金Supported by National Key Basic Research Development Plan(973):2007 CB 512507
文摘Objective To observe the protective effect of acupuncture-drug compound anesthesia with different frequency electroacupuncture（EA） on stress reaction in patients of pneumonectomy and to explore potential mechanisms.Methods Eighty patients scheduled for pneumonectomy were randomly divided into four groups,group A,B,C and D,20 cases in each group.General anesthesia and single lung protective mechanical ventilation were carried out in all the groups.Acupuncture was given at Hòuxī（后溪 SI 3）,Zhīgōu（支沟TE 6）,Nèiguān（内关 PC 6）,and Hégǔ（合谷 LI 4） 30 min before general anesthesia,and the acupuncture needles were connected with Han＇s acupoint nerve stimulator（HANS-200） in all the groups,but the acupuncture needles without needle bodies were pasted on the acupoints and EA was not given in the group A.2 Hz continuous wave,100 Hz continuous wave and 2 Hz/100 Hz EA were given in the group B,C and D respectively.The supplementary amount of anesthesia medicine,heart rate（HR） and mean arterial pressure（MAP） during pneumonectomy,and CD4^＋/CD8^＋ in venous blood before and one day after the surgery,and the contents of epinephrine（E） and cortisol（Cor） in plasma after entering the operating room and before turning out the operating room were detected.Results ① During the operation,supplementary amounts of Fentanyl in the group B and C were lower than those in the group A and D（P〈0.05,P〈0.01）.② The MAP in the four groups at tracheal intubation（T1） all were higher than those before anesthesia（T0）（all P〈0.01）,and the ascending extents in the group B,C and D were lower than that in the group A（all P〈0.01）;HR at T1 in the group A was higher than that at T0（P〈0.05）,while no significant change in the other groups（all P〈0.05）,and the ascending extents in the group B and D were lower than that in the group A（both P〈0.05）;MAP and HR at the other moments in all the groups were stable.③ CD4^＋/CD8^＋ in the group A after pneumonectomy was lower than that before the surgery（P〈0.05）,while no significant change in the other groups（all P〈0.05）.④ Contents of E and Cor after the operation were significantly increased in all the groups（all P〈0.01）,and the ascending extent of E content in the group D was lower than that in the group A（P〈0.05）;the ascending level of Cor in the group B and D was lower than that in the group A（P〈0.01）,and in the group B was lower that in the group C and D.Conclusion Acupuncture-drug compound anesthesia can attenuate the stress reaction so as to protect organs under the condition of less or same narcotic amount and can alleviate the fluctuation of MAP and HR at tracheal intubation and stabilize CD4^＋/CD8^＋ after pneumonectomy.Among them,2 Hz and 2 Hz/100 Hz EA have better effects.
