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Clean Energy 2022年第4期6卷 550-556页

作者： Xin Ju Xiaomin liu shangke liu Yangli Xiao State Grid Ningxia Economic and Technological Research Institute YinchuanNingxiaChina

Increasing the application of renewable energy in the power system is an effective way to achieve the goal of‘Dual Carbon’.At the same time,the high proportion of renewable energy connected to the grid endangers the safe operation of the power *** solve this problem,this paper proposes the application of a copula function to describe the correlation between wind power and photovoltaic power,and reduce the uncertainty of power-system operation with a high proportion of renewable *** order to increase the robustness of the model,this paper proposes the application of the conditional value-at-risk theory to construct the objective function of the model and effectively control the tail risk of power-system operation *** case analysis,it is found that the model proposed in this paper has strong practicality and economy.

关键词： renewable energy ‘Dual Carbon’targets copula-CVaR particle swarm optimization algorithm optimized scheduling

Optimal scheduling of flexible grid-side resources and auxiliary service cost allocation model considering renewable-energy penetration

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Clean Energy 2024年第4期8卷 90-102页

作者： Bin Bai Yanli Xiao Rui Zhao Xin Ju shangke liu State Grid Ningxia Electric Power Co. Ltd.Economic Technology Research InstituteYinchuan 750011China

Renewable energy has penetrated power grid enterprises on a large *** to the intermittency and volatility of renewable energy generation,it is necessary to build new flexible grid-side resources to ensure the safe and stable operation of the power grid,which will cause great pressure on cost allocation for power grid *** article considers four types of flexible grid-side resources and constructs a dual-level configuration optimization model for flexible grid-side resources under the penetration of renewable en*** on the configuration results,the cost scale of flexible grid-side resources is estimated and an improved ancillary service cost allocation model based on the Shapley value method is proposed to smooth the allocation of ancillary service costs in the cost of flexible grid-side resources between the two main bodies of renewable energy and *** calculation results show that,when the penetration rate of renewable-energy power is 30%and 35%,respectively,the cost of flexible grid-side resources is 9.606 billion yuan and 21.518 billion yuan,*** proportion of ancillary service costs allocated to load is relatively high-about five times that of the ancillary service costs allocated to renewable energy-and the higher the penetration rate of renewable energy,the higher the proportion of ancillary service costs allocated to renewable energy.

关键词： renewable-energy penetration flexible grid-side resources ancillary service costs Shapley allocation model

Prediction model for cost data of a power transmission and transformation project based on Pearson correlation coefficient-IPSO-ELM

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Clean Energy 2021年第4期5卷 756-764页

作者： Ju Xin liu shangke Xiao YanLi Wan Ye State Grid Ningxia Electric Power Co.Ltd Eco-Tech Research Institute NingXia Yinchuan750004P.R.China

In view of the difficulty in predicting the cost data of power transmission and transformation projects at present,a method based on Pearson correlation coefficient-improved particle swarm optimization(IPSO)-extreme learning machine(ELM)is *** this paper,the Pearson correlation coefficient is used to screen out the main influencing factors as the input-independent variables of the ELM algorithm and IPSO based on a ladder-structure coding method is used to optimize the number of hidden-layer nodes,input weights and bias values of the ***,the prediction model for the cost data of power transmission and transformation projects based on the Pearson correlation coefficient-IPSO-ELM algorithm is *** the analysis of calculation examples,it is proved that the prediction accuracy of the proposed method is higher than that of other algorithms,which verifies the effectiveness of the model.

关键词： cost data of power transmission and transformation project Pearson correlation coefficient IPSO-ELM algorithm project-cost prediction

Optimal Operation of Electric Vehicles and Distributed Generation Resources in Smart Grid Considering Load Management

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Energy Engineering 2022年第6期119卷 2655-2679页

作者： Zheng Wang shangke liu Yanli Xiao Ye Wan Bin Bai State Grid Ningxia Electric Power Co. Ltd.Eco-Tech Research InstituteYinchuan750004China

Technology advancement and the global tendency to use renewable energy in distributed generation units in the distribution network have been proposed as sources of energy *** the complexity of their protection,as well as the operation of distributed generation resources in the distribution network,factors such as improving reliability,increasing production capacity of the distribution network,stabilizing the voltage of the distribution network,reducing peak clipping losses,as well as economic and environmental considerations,have expanded the influence of distributed generation(DG)resources in the distribution *** location of DG sources and their capacity are the key factors in the effectiveness of distributed generation in the voltage stability of distribution ***,along with the scattered production sources of electric vehicles with the ability to connect to the network,due to having an energy storage system,they are known as valuable resources that can provide various services to the power *** vehicles can empower the grid or be used as a storage supply source when parked and connected to the *** paper introduces and studies a two-stage planning framework for the concurrent management of many electric vehicles and distributed generation resources with private *** the first stage,the aim is to increase the profit of electric vehicles and distributed generation sources;finally,the purpose is to reduce operating *** proposed scheduling framework is tested on a distribution network connected to bus 5 of the RBTS sample *** distributed generation sources and electric vehicles,we integrate time-consistent load management into the *** to distributed generation sources such as photovoltaic systems and wind turbines and the studied design in the modeling,we use the Taguchi TOAT algorithm to generate and reduce the scenario to ensure the uncertainty in renewable *** software is used t

关键词： Electric vehicle distributed generation sources coordinator uncertainty taguchi algorithm harmony search algorithm load management

基于Mann-Kendall法的电网输变电工程造价趋势研究

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宁夏电力 2018年第3期 68-72页

作者：刘尚科国网宁夏电力有限公司经济技术研究院宁夏银川750004

随着电网工程建设的发展,历史工程造价水平的整体趋势、波动幅度直接影响未来工程投资。以某地区2012-2016年110 kV输变电工程造价数据为基础,采用Mann-kendall法对单位容量造价、单位长度造价、主变压器单价等指标进行了趋势检验,采用... 详细信息

随着电网工程建设的发展,历史工程造价水平的整体趋势、波动幅度直接影响未来工程投资。以某地区2012-2016年110 kV输变电工程造价数据为基础,采用Mann-kendall法对单位容量造价、单位长度造价、主变压器单价等指标进行了趋势检验,采用指数平滑法对趋势变化幅度进行了量化分析。分析结果显示:该地区110 kV变电工程整体造价有下降趋势,线路工程整体显现了上升的趋势,但是塔材、线材的价格微有下降趋势。

关键词：电网工程造价趋势分析 Mann-Kendall法指数平滑法

卷烟销售市场景气指数的设计及其应用研究——以汉中市为例

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中国烟草学报 2016年第1期22卷 122-129页

作者：何文勤王猛黄嵬刘尚科杨屹陕西省烟草公司汉中市公司陕西省汉中723000 西安理工大学经济与管理学院陕西省西安710054

采用景气指数算法,以2012年6月至2014年6月汉中市卷烟销售数据为样本,计算了汉中市卷烟销售市场的扩散指数和合成指数。结果表明,第一,汉中市卷烟销售市场相对稳定,监测时段中过热或过冷的状况不多,但受季节影响严重,节假日能够刺激卷... 详细信息

采用景气指数算法,以2012年6月至2014年6月汉中市卷烟销售数据为样本,计算了汉中市卷烟销售市场的扩散指数和合成指数。结果表明,第一,汉中市卷烟销售市场相对稳定,监测时段中过热或过冷的状况不多,但受季节影响严重,节假日能够刺激卷烟消费。第二,汉中市卷烟景气期主要是春节前后以及9月、10月,夏季进入收缩期。第三,依据景气指数计算结果划分出预警区间,并提出与其对应的监控与监管措施。

关键词：景气指数销售卷烟扩散指数合成指数

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外源单宁酸对茶叶中农药胁迫作用的缓解效应

农药学学报 2021年第6期23卷 1150-1158页

作者：刘尚可王越潘灿平贾厚振刘铭钰邹楠山东农业大学植物保护学院农药毒理与应用技术重点实验室山东泰安271018 中国农业大学理学院应用化学系农药创新研究中心北京100193 山东省农业科学院茶叶研究所济南250131 山东省临沂市农业技术推广中心山东临沂276007

农药是控制病虫草害的重要手段,但农药也会对植物的氧化系统及营养品质产生影响。基于单宁酸的天然属性和结构特点,研究了在农药诱导的氧化胁迫下,叶面施用单宁酸对茶叶抗氧化系统和营养品质的潜在作用。与单独施用农药相比,加施10 mg/... 详细信息

农药是控制病虫草害的重要手段,但农药也会对植物的氧化系统及营养品质产生影响。基于单宁酸的天然属性和结构特点,研究了在农药诱导的氧化胁迫下,叶面施用单宁酸对茶叶抗氧化系统和营养品质的潜在作用。与单独施用农药相比,加施10 mg/L单宁酸显著提高了茶叶超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)及抗坏血酸过氧化物酶(APX)活性,其中POD活性分别是空白对照、吡唑醚菌酯单独施用的4.69倍和3.13倍,APX活性比单独施用吡虫啉、联苯菊酯和吡唑醚菌酯分别提高了340.74%、114.71%和271.70%。此外,单宁酸显著提高了茶叶总抗氧化能力,提高了脯氨酸、还原型谷胱甘肽和茶多酚含量,降低了膜脂过氧化产物丙二醛的含量。单宁酸还提高了茶叶中维生素C、可溶性蛋白、咖啡碱和游离氨基酸的含量。综上,外源单宁酸能够激活茶叶抗氧化酶活性,影响抗氧化非酶物质的积累,缓解茶叶中农药胁迫带来的氧化损伤,最终提高茶叶品质。

关键词：单宁酸茶叶农药胁迫氧化损伤抗氧化酶活性

农药在植物中的内吸和传导行为与施药技术研究进展

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农药学学报 2021年第4期23卷 607-616页

作者：刘婷婷刘尚可李北兴刘峰慕卫潘灿平邹楠山东农业大学植物保护学院农药毒理与应用技术重点实验室山东泰安271018 中国农业大学理学院应用化学系农药创新中心北京100193

农药的施用方式和施用效果与其在植物中的内吸和传导行为密切相关。农药在植物表面和内部的内吸和传导行为,不仅与其自身理化性质有关,还受植物种类、生长期、生长条件及施药方式等因素的影响。研究农药在植物体内的内吸和传导行为及其... 详细信息

农药的施用方式和施用效果与其在植物中的内吸和传导行为密切相关。农药在植物表面和内部的内吸和传导行为,不仅与其自身理化性质有关,还受植物种类、生长期、生长条件及施药方式等因素的影响。研究农药在植物体内的内吸和传导行为及其影响因素,对于选择合适的施药技术及提高农药利用率具有重要的指导意义。本文综述了农药在植物体内的内吸和传导行为、传导方式与施药技术的关系以及影响农药内吸和传导行为的因素,并提出改善农药内吸和传导行为的措施,以期为农药的安全合理施用提供一定的理论支撑。

关键词：内吸性农药内吸传导行为施药技术影响因素研究进展

基于直觉梯形模糊数多因子群决策方法的110 kV智能变电站装配式建筑造价评价

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南昌大学学报（理科版） 2018年第4期42卷 404-408页

作者：刘小敏何勇萍刘尚科尤菲于波国网宁夏电力有限公司经济技术研究院宁夏银川750001

将直觉梯形模糊数引入110kV智能变电站装配式建筑造价评价中,在识别出智能变电站装配式建筑造价影响因子的基础上利用ITFN对造价影响因子进行了定义和描述,并基于国网智能变电站装配式建筑典型设计方案构造了造价影响因子理想直觉梯形... 详细信息

将直觉梯形模糊数引入110kV智能变电站装配式建筑造价评价中,在识别出智能变电站装配式建筑造价影响因子的基础上利用ITFN对造价影响因子进行了定义和描述,并基于国网智能变电站装配式建筑典型设计方案构造了造价影响因子理想直觉梯形模糊向量,运用Hamming距离测度提出了多因子群决策模式下的专家权重决策向量的求解方法,引入得分函数和精确度函数建立了智能变电站装配式建筑造价评价模型,为科学合理的开展装配式建筑造价评价提供了一条有效途径。最后应用实例分析验证了模型的有效性和可行性。

关键词：直觉梯形模糊数多因子群决策装配式建筑

青蒿琥酯对痤疮丙酸杆菌诱导的人皮脂腺细胞促炎症因子表达的影响

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临床皮肤科杂志 2023年第5期52卷 259-262页

作者：刘颖林新瑜刘尚可陈静宇邓秋熊梦媛成都市金牛区人民医院·四川省人民医院金牛医院皮肤科四川成都610036 四川省医学科学院·四川省人民医院皮肤科四川成都610072 成都市第二人民医院皮肤科四川成都610021

目的:研究青蒿琥酯(Art)对痤疮丙酸杆菌(***)诱导的人皮脂腺细胞(SZ95)促炎症因子表达的影响。方法:CCK8法检测不同浓度Art对人皮脂腺细胞活力的影响,筛选出适宜浓度的Art;RT-PCR、ELISA法检测肿瘤坏死因子(TNF)-α和白细胞介素(IL)-1... 详细信息

目的:研究青蒿琥酯(Art)对痤疮丙酸杆菌(***)诱导的人皮脂腺细胞(SZ95)促炎症因子表达的影响。方法:CCK8法检测不同浓度Art对人皮脂腺细胞活力的影响,筛选出适宜浓度的Art;RT-PCR、ELISA法检测肿瘤坏死因子(TNF)-α和白细胞介素(IL)-1β的表达。结果:Art在25~100μmol/L剂量范围内以剂量依赖关系抑制了痤疮丙酸杆菌诱导的人皮脂腺细胞分泌促炎症因子TNF-α、IL-1β mRNA和蛋白的表达(P<0.05)。结论:Art可抑制痤疮丙酸杆菌诱导的人皮脂腺细胞分泌促炎症因子TNF-α和IL-1β。

关键词：青蒿琥酯痤疮丙酸杆菌促炎症因子肿瘤坏死因子-α和白细胞介素-1β