▍1. 000952612.pdf
Magic Pixel MP620DGC-C Datasheet v. 0.99
说明: Magic Pixel MP620DGC-C Datasheet v. 0.99
提出了一套基于供电网格优化划分的中压配电网规划思路和方法。首先,确定规划区域主干通道布局,确保土地资源预留。然后,在明确网格划分目的和原则的基础上,基于就近选择负荷备供变电站和负荷聚类方法,实现供电网格在全局范围内的优化划分。最后,分别在各供电网格内,基于其供区分类优选接线模式和一、二次建设改造标准,并进行主干线布线规划。(This paper presents a set of ideas and methods for medium voltage distribution network planning based on power grid optimization. Firstly, the layout of the main corridors in the planning area is determined to ensure the reservation of land resources. Then, on the basis of defining the purpose and principle of grid partition, the optimal partition of power supply grid in the global scope is realized based on the near selection of load standby substation and load clustering method. Finally, in each power supply grid, based on the classification of supply areas, the optimal wiring mode and reconstruction standards of primary and secondary construction are selected, and the main wiring planning is carried out.)
说明: 提出了一套基于供电网格优化划分的中压配电网规划思路和方法。首先,确定规划区域主干通道布局,确保土地资源预留。然后,在明确网格划分目的和原则的基础上,基于就近选择负荷备供变电站和负荷聚类方法,实现供电网格在全局范围内的优化划分。最后,分别在各供电网格内,基于其供区分类优选接线模式和一、二次建设改造标准,并进行主干线布线规划。(This paper presents a set of ideas and methods for medium voltage distribution network planning based on power grid optimization. Firstly, the layout of the main corridors in the planning area is determined to ensure the reservation of land resources. Then, on the basis of defining the purpose and principle of grid partition, the optimal partition of power supply grid in the global scope is realized based on the near selection of load standby substation and load clustering method. Finally, in each power supply grid, based on the classification of supply areas, the optimal wiring mode and reconstruction standards of primary and secondary construction are selected, and the main wiring planning is carried out.)
提出了一种基于随机森林的局放特征优选新方法。结果证明,随机森林算法是一种有效的电缆局放特征优选方法,并有望推广到其他电力设备局放的特征寻优。(A new method based on Stochastic Forest for local feature selection is proposed. The results show that the stochastic forest algorithm is an effective method for feature optimization of Cable Partial discharge, and it is expected to be extended to other power equipment partial discharge feature optimization.)
说明: 提出了一种基于随机森林的局放特征优选新方法。结果证明,随机森林算法是一种有效的电缆局放特征优选方法,并有望推广到其他电力设备局放的特征寻优。(A new method based on Stochastic Forest for local feature selection is proposed. The results show that the stochastic forest algorithm is an effective method for feature optimization of Cable Partial discharge, and it is expected to be extended to other power equipment partial discharge feature optimization.)
针对风电场输出功率的强波动性对交直流互联电网调频的影响,提出了基于协作式分布式模型预测控制的交直流互联电网调频控制方法,以提高风电经交直流通道外送互联系统的频率稳定性,克服集中式模型控制方法扩展性差的缺点,该控制策略具有全局最优解。(Aiming at the influence of strong fluctuation of wind farm output power on frequency modulation of AC/DC interconnected power grid, a frequency modulation control method for AC/DC interconnected power grid based on cooperative distributed model predictive control is proposed to improve the frequency stability of wind power interconnected system via AC/DC channel and overcome the poor expansibility of centralized model control method. The disadvantage of this control strategy is that it has a global optimal solution.)
接线模式的合理选择将有利于提升中压配电网的综合优化水平。在研究苏州地区电缆网接线模式的供电可靠性和经济性的基础上,提出了 3 种兼顾供电可靠性和经济性的电缆接线模式的选取方法 。(Reasonable selection of wiring mode will be conducive to improving the comprehensive optimization level of medium voltage distribution network. On the basis of studying the reliability and economy of power supply of cable network connection mode in Suzhou area, three selection methods of cable connection mode considering both reliability and economy of power supply are put forward.)
说明: 针对风电场输出功率的强波动性对交直流互联电网调频的影响,提出了基于协作式分布式模型预测控制的交直流互联电网调频控制方法,以提高风电经交直流通道外送互联系统的频率稳定性,克服集中式模型控制方法扩展性差的缺点,该控制策略具有全局最优解。(Aiming at the influence of strong fluctuation of wind farm output power on frequency modulation of AC/DC interconnected power grid, a frequency modulation control method for AC/DC interconnected power grid based on cooperative distributed model predictive control is proposed to improve the frequency stability of wind power interconnected system via AC/DC channel and overcome the poor expansibility of centralized model control method. The disadvantage of this control strategy is that it has a global optimal solution.)
说明: 接线模式的合理选择将有利于提升中压配电网的综合优化水平。在研究苏州地区电缆网接线模式的供电可靠性和经济性的基础上,提出了 3 种兼顾供电可靠性和经济性的电缆接线模式的选取方法 。(Reasonable selection of wiring mode will be conducive to improving the comprehensive optimization level of medium voltage distribution network. On the basis of studying the reliability and economy of power supply of cable network connection mode in Suzhou area, three selection methods of cable connection mode considering both reliability and economy of power supply are put forward.)
引入新型调频资源和应用先进控制方法是提升频率调节质量和效率的重要手段。首先,分析总结了大规模可再生能源接入对电力系统频率响应性能和调频需求两方面的影响。然后,从新型调频资源参与自动发电控制的可行性、经济性、有效性及控制策略等多个角度,综述了新型调频资源参与自动发电控制的关键问题和研究动态。归纳并讨论了几类先进控制技术应用于自动发电控制中的研究现状和应用前景。最后,对大规模可再生能源接入条件下自动发电控制的研究挑战和方向进行了总结和展望。(Introducing new FM resources and applying advanced control methods are important means to improve the quality and efficiency of frequency regulation. Firstly, the impact of large-scale renewable energy access on power system frequency response performance and frequency modulation requirements is analyzed and summarized. Then, the key issues and research trends of the new FM resources participating in the automatic generation control are summarized from the aspects of feasibility, economy, effectiveness and control strategy of the new FM resources participating in the automatic generation control. The research status and application prospects of several kinds of advanced control technologies applied in automatic generation control are summarized and discussed. Finally, the research challenges and directions of automatic generation control under the condition of large-scale renewable energy access are summarized and prospected.)
说明: 引入新型调频资源和应用先进控制方法是提升频率调节质量和效率的重要手段。首先,分析总结了大规模可再生能源接入对电力系统频率响应性能和调频需求两方面的影响。然后,从新型调频资源参与自动发电控制的可行性、经济性、有效性及控制策略等多个角度,综述了新型调频资源参与自动发电控制的关键问题和研究动态。归纳并讨论了几类先进控制技术应用于自动发电控制中的研究现状和应用前景。最后,对大规模可再生能源接入条件下自动发电控制的研究挑战和方向进行了总结和展望。(Introducing new FM resources and applying advanced control methods are important means to improve the quality and efficiency of frequency regulation. Firstly, the impact of large-scale renewable energy access on power system frequency response performance and frequency modulation requirements is analyzed and summarized. Then, the key issues and research trends of the new FM resources participating in the automatic generation control are summarized from the aspects of feasibility, economy, effectiveness and control strategy of the new FM resources participating in the automatic generation control. The research status and application prospects of several kinds of advanced control technologies applied in automatic generation control are summarized and discussed. Finally, the research challenges and directions of automatic generation control under the condition of large-scale renewable energy access are summarized and prospected.)
介绍了国际上典型一流城市中压配电网结构模式, 总结归纳了中压配电网网架结构在提高供电可靠性、 减少停电时间上的作用。 对比分析了现状中压电缆网大分支网架结构的改造方式, 总结提炼并形成适用于福州地区建设世界一流城市配电网的中压电缆网网架结构, 提出双环网、 单环网的典型接线模式, 包括主干线路和分支线路的接线形式, 并进行了可靠性计算和论证, 用以指导福州地区世界一流城市电网建设。(This paper introduces the structure mode of medium-voltage distribution network in typical first-class cities in the world, and summarizes the role of the structure of medium-voltage distribution network in improving the reliability of power supply and reducing the blackout time. This paper compares and analyses the transformation modes of the large branch network structure of medium voltage cable network, summarizes and refines the medium voltage cable network structure suitable for constructing the world-class urban distribution network in Fuzhou, and puts forward the typical connection modes of double-loop network and single-loop network, including the main line and branch line, and carries out the transformation. Reliability calculation and demonstration are carried out to guide the construction of the world-class urban power grid in Fuzhou.)
说明: 介绍了国际上典型一流城市中压配电网结构模式, 总结归纳了中压配电网网架结构在提高供电可靠性、 减少停电时间上的作用。 对比分析了现状中压电缆网大分支网架结构的改造方式, 总结提炼并形成适用于福州地区建设世界一流城市配电网的中压电缆网网架结构, 提出双环网、 单环网的典型接线模式, 包括主干线路和分支线路的接线形式, 并进行了可靠性计算和论证, 用以指导福州地区世界一流城市电网建设。(This paper introduces the structure mode of medium-voltage distribution network in typical first-class cities in the world, and summarizes the role of the structure of medium-voltage distribution network in improving the reliability of power supply and reducing the blackout time. This paper compares and analyses the transformation modes of the large branch network structure of medium voltage cable network, summarizes and refines the medium voltage cable network structure suitable for constructing the world-class urban distribution network in Fuzhou, and puts forward the typical connection modes of double-loop network and single-loop network, including the main line and branch line, and carries out the transformation. Reliability calculation and demonstration are carried out to guide the construction of the world-class urban power grid in Fuzhou.)
在不同供电区域负荷密度和不同变电所容量条件下 ,对中压配电网常见的几种接线模式进行了经济性和可靠性计算分析 ,研究其随负荷密度和变电所容量变化的趋势 ,以及在相同条件下不同接线模式之间的比较。(Under the conditions of load density and different substation capacity in different power supply areas, the economic and reliability calculations of several common wiring modes of medium voltage distribution network are carried out, and the trend of load density and capacity change of substation is studied. And a comparison between different wiring modes under the same conditions.)
说明: 在不同供电区域负荷密度和不同变电所容量条件下 ,对中压配电网常见的几种接线模式进行了经济性和可靠性计算分析 ,研究其随负荷密度和变电所容量变化的趋势 ,以及在相同条件下不同接线模式之间的比较。(Under the conditions of load density and different substation capacity in different power supply areas, the economic and reliability calculations of several common wiring modes of medium voltage distribution network are carried out, and the trend of load density and capacity change of substation is studied. And a comparison between different wiring modes under the same conditions.)
该文基于模型预测控制理论, 提出一种考虑多时空尺度协调的风电集群有功分层预测控制方法。 该方法将风电集群在空间尺度上分为三层控制层,将超短期风电功率预测值在时间尺度上逐层细化,并对各层滚动优化环节进行了优化建模。 仿真分析中通过与常用有功分配方法对比, 结果表明文中所提方法在保证系统安全运行和满足集群计划的同时,能够提高风电消纳能力,合理利用风能资源和分配集群内风电功率。(Based on the model predictive control theory, this paper proposes a wind power cluster active layered predictive control method that considers multi-temporal scale coordination. The method divides the wind power cluster into three layers on the spatial scale, and predicts the ultra-short-term wind power prediction value on a time scale, and optimizes the rolling optimization of each layer. Compared with the commonly used active power allocation method in the simulation analysis, the results show that the proposed method can improve the wind power consumption capacity, rationally utilize the wind energy resources and allocate the wind power in the cluster while ensuring the safe operation of the system and meeting the cluster plan.)
针对使用传统分类器预测配变重过载会因为重过载样本率较低而带来的总正确率很高,重过载预测正确率却很低这一问题,将重抽样与随机森林理论引入分类模型中,构建重抽样-随机森林分类器对配变重过载进行预测。结果表明,新方法在预测配变日重过载类型、重过载开始与结束时间、重过载严重程度方面有较高的准确率。(For the problem of using the traditional classifier to predict the distribution of heavy overload, the total correct rate is high because of the low overload sample rate, and the accuracy of the heavy overload prediction is very low. The resampling and random forest theory are introduced into the classification model. In the construction, the re-sampling-random forest classifier is used to predict the heavy-duty overload. The results show that the new method has higher accuracy in predicting the type of daily variable overload, the start and end time of heavy overload, and the severity of heavy overload.)
control system engineering ogata
说明: 该文基于模型预测控制理论, 提出一种考虑多时空尺度协调的风电集群有功分层预测控制方法。 该方法将风电集群在空间尺度上分为三层控制层,将超短期风电功率预测值在时间尺度上逐层细化,并对各层滚动优化环节进行了优化建模。 仿真分析中通过与常用有功分配方法对比, 结果表明文中所提方法在保证系统安全运行和满足集群计划的同时,能够提高风电消纳能力,合理利用风能资源和分配集群内风电功率。(Based on the model predictive control theory, this paper proposes a wind power cluster active layered predictive control method that considers multi-temporal scale coordination. The method divides the wind power cluster into three layers on the spatial scale, and predicts the ultra-short-term wind power prediction value on a time scale, and optimizes the rolling optimization of each layer. Compared with the commonly used active power allocation method in the simulation analysis, the results show that the proposed method can improve the wind power consumption capacity, rationally utilize the wind energy resources and allocate the wind power in the cluster while ensuring the safe operation of the system and meeting the cluster plan.)