Research on Tidal Optimization of Voltage Overrun Problem in Photovoltaic Distribution Network With Electrical Energy Router [PDF]
ObjectivesWith the access of high-penetration distributed photovoltaic to the distribution network, the problems of power back-feeding and voltage overrun become more and more serious.
FENG Zining +3 more
core +1 more source
全球能源互联网提出城区配电系统自适应鲁棒应急检修计划编排方法，旨在提高检修计划的灵活性和适应性，应对各种不确定性和突发事件。首先，基于“防御-攻击-防御”思想建立配电网元件检修模型。灾前防御决策人员根据有限的检修预算，考虑攻击场景，选择配电系统中的线路与电源进行检修；灾中攻击者考虑防御者能采用的优化运行策略，根据有限的攻击预算选择线路与电源进行攻击；灾后运行人员利用优化运行策略，应对攻击者所采取的攻击方案，最小化攻击造成的影响。所构建的三层两阶段自适应鲁棒优化模型基于列约束生成算法进行求解 ...
乔骥 +8 more
doaj +1 more source
An analysis method for the maturity of power technology based on literature search [PDF]
China’s power industry has gone through a period of rapid development. With the transformation of the global energy structure, the development goal of building a new type of power system was proposed, which pointed out the direction for the next stage of
HE Dongshan +5 more
core +1 more source
Renewable Energy Distribution Network Overcurrent Protection Based on Positive-Sequence Sudden-Change Component Locus Identification [PDF]
ObjectivesWith the widespread integration of renewable energy, the uncertainty of power flow in distribution networks with neutral points grounded through small resistors has made the setting of traditional three-stage current protection increasingly ...
LI Shuyi +6 more
core +1 more source
Review of Application on Optimization Strategies for New-Type Power System Based on Reinforcement Learning [PDF]
ObjectivesAs power systems evolve toward higher levels of intelligence and automation, reinforcement learning (RL), a key technology in artificial intelligence, shows great potential in the intelligent development of the power sector.
WANG Kai, YAN Zhengyi, ZHAO Kang
core +1 more source
全球能源互联网, 2019 电网输配电网损引发的间接碳排放已被我国部分试点碳市场纳入管控。参与碳市场对电网企业而言是机遇也是挑战，电网作为服务低碳能源转型的减排平台，其网损水平并不完全取决于自身管理能力，网损水平的波动使得电网企业暴露于碳市场履约风险之下。前期已基于支持向量机方法，采用2012～2016年能源主管部门披露的某省有关数据，构建了网损统计分析模型。进一步根据某省发展规划构建多个未来发展假想场景，根据试点碳市场规则，对2017～ 2020年期间某省电网网损水平和碳排放配额仓位进行态势推演。基于碳排放配额仓位推演结果 ...
黄杰 +6 more
doaj +1 more source
Research on Reconfiguration Strategy of Distributed Distribution Network With Self-Healing Performance Under High-Proportion Renewable Energy Access [PDF]
ObjectivesAs the proportion of renewable energy in power grids increases year by year, the volatility and uncertainty of the grid are significantly heightened, posing challenges to the safe operation of distribution networks.
HUANG Yijun, WU Renbo
core +1 more source
Dynamic Power Decoupling Control of Virtual Synchronous Generator Based on Improved Virtual Impedance [PDF]
ObjectivesWhen a virtual synchronous generator (VSG) is connected to a medium and low voltage distribution network, the line impedance exhibits resistive and inductive characteristics, resulting in strong coupling in the VSG output power.
REN Mingwei +4 more
core +1 more source
Gaoya dianqi, 2018 随着电动汽车的逐渐普及,具有可移动储能性质的电动汽车将大量接入配电网进行充放电。这影响了配电网原有的电源、负荷以及网络结构,改变了配电网的潮流水平及方向,势必给配电网的继电保护造成了极大的影响。除此之外汽车在时间与空间上还具有很强的充放电随机性,这会给配电网的继电保护配置及整定造成困难。对此,文中基于电动汽车放电时的分布式电源特性与充电时的随机负荷特性,对电动汽车接入配电网充放电时的故障特征进行梳理与总结,分析了电动汽车对配电网中电流保护、距离保护及重合闸受到的具体影响。最后,并以此为基础 ...
李振兴 +4 more
doaj
Research on Fault Location in Integrated Energy Systems Based on Improved Binary Particle Swarm Optimization Algorithm [PDF]
ObjectivesThe coverage of power systems continues to expand, and the structure of integrated energy systems is becoming increasingly complex. This trend leads to a significant decline in the accuracy of fault location in the distribution network that is ...
GAO Yang +5 more
core +1 more source