Results 61 to 70 of about 4,276 (158)
Research on Large-Signal Stability Assessment Methods of DC Microgrids Based on Artificial Intelligence [PDF]
ObjectivesDC microgrids are prone to the issue of large-signal stability due to the low inertia and constant power load characteristics. Traditional model-based methods involve complex calculations and are difficult to solve.
HONG Tao +4 more
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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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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, 2017 为了实现分布式电源组成的微网能以更为经济、灵活和环保的方式运行,充分发挥分布式电源的发电优势。针对微网优化调度的问题,提出以电动汽车同时作为负荷和发电单元且计及制热收益的微网多目标优化模型,以经济效益最大化、环境成本最小化作为微网多目标优化问题。应用非劣排序遗传算法NSGA-II,进行多目标优化求解,求得Pareto前端解,从而获得微网最优调度策略。通过算例验证了所提模型、策略和算法的有效性。
黄山 +4 more
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Gaoya dianqi, 2015 在实时电价体系下,通过研究价格弹性矩阵研究了需求侧的用电行为,以此确定需求侧响应量。建立了基于需求侧响应的微电网市场优化模型,需求侧重点研究可转移负荷、可中断负荷对微网带来的经济效益。对模型进行线性化处理,并采用性能较好的专业优化软件IBM ILOG CPLEX进行模型求解。仿真结果表明,可转移负荷加入后微网运行总费用减少7.85%,可转移、可中断负荷同时加入微电网后微网运行总费用减少17.56%,市场优化效果显著。
董开松 +5 more
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Creating the future for a better world [PDF]
, 2014 WFF is a grant-making foundation, based in Singapore, but for the world. It provides financial support to a number of organizations and programs related to environmental and social sustainability research. Through these programs, WFF hopes to bring forth
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Gaoya dianqi, 2020 为促进孤岛微网中可再生能源的消纳,减小负荷峰谷差。文中在孤岛微网中引入价格型需求响应,以微网运行成本最低和柴油发电机出力最少为目标,综合考虑功率平衡、抽水蓄能机组启停与工况转换等约束条件,构建了含风电、抽水蓄能和柴油发电机的孤岛微网多目标优化调度模型,并采用乌鸦搜索算法进行求解。仿真结果表明:在孤岛微网中引入价格型需求响应能有效削减负荷峰谷差,经济效益显著。与粒子群优化算法相比,乌鸦搜素算法在收敛速度和全局寻优的能力上具有明显优势。
黄景光 +5 more
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Gaoya dianqi, 2022 将微电网中储能系统与有源电力滤波器（APF）结合，构成储能型APF，既可治理微电网中的谐波、无功及不平衡电流，又能平抑功率波动。针对谐波检测，提出一种改进的四线制ip-iq谐波检测法，基于自适应陷波器锁相环（ANF-PLL）代替传统的同步旋转坐标系锁相环，实现在电网电压不平衡且畸变时仍能准确地提取基波正序相位，并使用滑动均值滤波（MAF）提高检测精度。同时为了兼顾系统的动态与稳态性能，在αβ0坐标系下通过单电流环重复+PI控制跟踪指令电流，无需派克变换和解耦，简化控制器设计。仿真结果表明 ...
袁性忠 +4 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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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
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