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Optimal Operation of Residential Microgrids Based on a Robust Model Using Information Gap Decision Theory [PDF]
ObjectivesResidential microgrids are an important part of the new-type power system, and their optimal operation is crucial for improving the utilization efficiency of renewable energy and reducing system operating costs.
LIU Shilin, LUO Zonglong
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Gaoya dianqi, 2016 微网故障检测与保护的研究是配电网领域的热点问题。文中首先分析了微网保护面临的主要问题,然后提出了一种新的对含有逆变器分布式电源的微网内部故障的保护方法:实时计算分布式电源等效工频阻抗幅值的变化情况来识别微网内部线路故障;利用不平衡电流来识别微网内部负荷故障;最后基于PSACD/EMTDC搭建的仿真模型验证了新方法的正确性。
张玉凤, 陈松立, 吉高卿
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Optimal Capacity Configuration Method for Multi-Microgrid System Utilizing Wind-Solar-Electric-Hydrogen Hybrid Energy Storage [PDF]
ObjectivesIn order to study the problems of increasing complexity of power balance, and increasing uncertainty of power flow distribution and increasing security and stability requirements of power grid caused by high proportion of renewable energy ...
HUANG Yanming +3 more
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, 2017 本文针对在海岛环境下建设LTE230系统,通过分析长岛的环境状况和对建设条件的描述,并经过严格的选址要求,着重介绍了LTE230系统架构的搭建,具有成本低、覆盖广等特点。在复杂的环境下,对比传统的通信网络,可以发挥其良好的优势,满足了当地智能电网的发展需求。烟台科技项目（编号：5206051400K9 ...
刘晗, 戴国良, 柳培忠
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Gaoya dianqi, 2018 当低压微电网由并网过渡到孤岛运行时会出现功率缺额的现象,导致微电网无法保持电压和频率稳定。文中提出了双重下垂控制的策略,即在改进耦合下垂控制同时,又增加一层对于直流总线电压响应的下垂控制。该控制策略能够在这孤岛模式和并网模式下工作,实现自动调节微电源的输出功率。此外,该控制策略还解决了孤岛模式和并网模式之间的切换不平滑的问题。对提高微电网的电能质量和供电可靠性具有重要意义。以上所提出的控制策略通过MATLAB仿真验证其有效性。
汪玉凤, 李琳, 王立辉, 张志强
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A Wireless Multi-Objective Power Sharing Method for Energy Storage System in DC Micro-Grid Considering Oscillatory-Type Power [PDF]
As the construction of new power systems, DC microgrids will become an important part of the distribution network. As AC load connecting to DC microgrids, the oscillating power will enter the DC system, which affects the power distribution of energy ...
LU Gang +4 more
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Gaoya dianqi, 2015 作为消纳新能源发电的一种手段,微电网以其灵活性和经济性,日益受到各国重视。为了研究微电网的运行特性,文中首先研究各分布式电源数学模型,并基于MATLAB/Simulink仿真系统,分别搭建光伏、蓄电池储能系统、柴油发电机的仿真模型,结合系统自带模块,构建了交流微电网的整体性仿真模型。对该系统在多种工况下,各分布式电源出力对系统运行特性的影响进行仿真试验,结果表明,文中所建的交流微电网模型能够准确模拟系统的实际运行情况,为微电网的运行与规划提供了技术支持。
谢永涛 +5 more
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Optimization method for island and reef hybrid power generation systems' power capacity based on adaptive ant colony algorithm [PDF]
Objectives Aiming to address the existing challenges in the power capacity configuration of island and reef hybrid power generation systems, this paper proposes an optimization method based on the adaptive ant colony algorithm (ACA).
Hao ZHANG +4 more
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China Maritime Report No. 12: Sansha City in China\u27s South China Sea Strategy: Building a System of Administrative Control [PDF]
, 2021 China established Sansha City in 2012 to administer the bulk of its territorial and maritime claims in the South China Sea. Sansha is headquartered on Woody Island.
Haver, Zachary
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Gaoya dianqi, 2018 微电网风光资源出力预测的随机性导致优化决策方案存在偏差,为了减轻预测误差随机性对微电网运行的不利影响,针对风/光/柴/储并网型微电网系统,提出了计及风光预测误差的日前多目标优化控制策略。在建立微电网各单元模型的基础上,分析了影响风光资源的随机性因素;考虑系统供需平衡以及微电网各单元运行特性等主要约束,建立了同时优化经济效益和环境效益的多目标优化模型。建模过程中采用情景生成与削减方法处理风光资源预测误差带来的随机性。采用差异进化算法求解模型,通过算例仿真,比较不同模式下微电网的优化结果 ...
孙丛丛 +4 more
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