Wind Power, Hydropower and Thermal Power Combined Low-Carbon Maintenance Optimization Based on Continuous Hidden Markov Model [PDF]
, 2023 [Introduction] In the context of the new power system, low-carbon maintenance of wind turbines and coordinated maintenance with conventional wind turbine generator systems (WTGS) need to be solved urgently.
Min XIE +4 more
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全球能源互联网, 2019 海上风电投资成本高、风险大，为提高其经济性，海上风电机组向超大容量化快速发展。全功率变换风电机组成为海上机组的主流，该机组要求变流器的容量与机组容量相匹配，同时对其运行效率、可靠性和可用度提出了更高的要求。采用两电平或三电平变换器并联组成的变流器是海上风电变流器的主流结构，对并联变流系统的优化运行、容错和重构控制可有效提升其效率和可用度，对风电变流器控制的改进也可以使机组主动参与电网频率响应。针对海上风电变流器运行效率和可用度提升技术、风电高比例并网和平价上网的技术需求，综合评述其研究现状和技术趋势。
蔡旭 +6 more
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Research on Economic Scheduling of Active Distribution Networks With Inclusion of Data Center and Energy Storage [PDF]
ObjectivesTo improve the new energy consumption capacity of the power grid, reduce operational costs for power generation companies, and address issues such as increased network losses and reduced new energy consumption when large-scale renewable energy ...
LI Ji, MA Haoran, WANG Weiqing, YUAN Zhi
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, 2015 Ｉｎ ｉｓｌａｎｄｅｄ ｍｉｃｒｏｇｒｉｄｓ，ｔｈｅ ｔｒａｄｉｔｉｏｎａｌ ｗｉｒｅｌｅｓｓ ａｃｔｉｖｅ ｐｏｗｅｒ ｃｏｏｒｄｉｎａｔｅｄ ｃｏｎｔｒｏｌ ｍａｙ ｌｅａｄ ｔｏ ｔｈｅ ｓｔａｔｅ ｏｆ ｃｈａｒｇｅ （ＳＯＣ）ｏｆ ｔｈｅ ｂａｔｔｅｒｙ ｅｎｅｒｇｙ ｓｔｏｒａｇｅ ｓｙｓｔｅｍ （ＢＥＳＳ）ｇｅｔｔｉｎｇ ｂｅｙｏｎｄ ｔｈｅ ｓａｆｅ ｏｐｅｒａｔｉｏｎ ｒｅｇｉｏｎ ｉｆ ｉｍｂａｌａｎｃｅ ｂｅｔｗｅｅｎ ｐｏｗｅｒ ｃｏｎｓｕｍｐｔｉｏｎ ａｎｄ ...
Guerrero, Josep M. +4 more
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Coordinated Optimization of Intelligent Soft Open Points and Multiple Types of Shared Energy Storage in Distribution Networks Considering Flexibility Deficiency Risk [PDF]
ObjectivesTo address the operational security issues in the new-type distribution network caused by the high-penetration integration of renewable energy, this paper proposes a coordinated optimization method for intelligent soft open points and multiple ...
FAN Xiaochao +5 more
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Voltage Hierarchical Control Strategy of Active Distribution Network Based on Deep Reinforcement Learning [PDF]
ObjectivesThe randomness and volatility of distributed power generation poses significant challenges for the voltage control in active distribution network (AND).
DU Wanlin +6 more
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, 2023 在推动中国新能源高质量跃升式发展背景下，大规模新能源开发、汇集和远距离输送成为新能源建设的重要路径之一，特大型新能源基地成为未来的重要形态。由于缺少常规交流同步发电机组和可靠备用容量，特大型新能源基地稳定性挑战、新能源利用率与供电充裕性矛盾凸显，其形态结构及演化路径成为当前关切的热点问题。系统梳理了当前最新学术研究成果，研判特大型新能源基地未来可能的源网形态并做特征分析；进一步，面向特大型新能源基地系统强度弱、灵活性不足、源网协调运行矛盾突出等挑战，针对性提出源网协调规划 ...
张玮 +5 more
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A Soft Open Points Siting, Sizing, and Multi-Period Power Flow Optimization Based on Second-Order Cone Relaxation [PDF]
[Objective] With the large-scale integration of distributed energy resources such as wind and solar power, distribution networks are experiencing increasing operational challenges, including voltage violations, reverse power flows, and rising line losses.
Kai ZHANG +3 more
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Key technologies and bottlenecks of multi-energy complementary DC microgrid for residual coalbed methane drainage in abandoned mine [PDF]
, 2023 In terms of the collaborative utilization of residual energy and space resources in abandoned mines, under the framework of a green low-carbon multi-energy complementary system, a multi-energy complementary DC microgrid integrating wind-solar-gas-storage
Bin LI +7 more
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基于数字二次回路装置的智能变电站过程层改进方案探讨 [PDF]
全球能源互联网, 2018 分析了智能变电站存在的主要问题，提出了智能变电站二次系统运维单元应与一次系统间隔相匹配的原则，指出智能变电站二次设备与二次回路，包括网络、软件、配置文件和信息流，都应按间隔配置。对二次回路进行重构，设计了数字二次回路装置、互感器就地采样模块及基于二者的新型智能变电站二次系统方案。该方案可较好地解决智能变电站改扩建难题，并保证保护动作的快速性与采用“直采直跳”方案相当，总体可靠性优于就地无防护安装方式。方案中取消了过程层网络和交换机，数字二次回路装置采用定值单方式配置，不需配置文件，对人员技能要求低 ...
曹团结, 伍小刚, 汤晓晨
doaj +1 more source