Results 81 to 90 of about 3,235 (212)
Dynamic Load Power Sharing Method with the Elimination of the Bus Voltage Deviation for the Energy Storage Systems in DC Micro-Grids [PDF]
In order to take advantage of the dispersed energy storage units in the DC micro-grids, an improved state of charge (SOC) based droop control method for energy storage systems was proposed in this paper.
Guerrero, Josep M. +4 more
core
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
core +1 more source
储能系统不仅是推动电站发展的核心技术,还在实现“双碳”目标过程中发挥着重要作用。为了保证其电力储能系统的有效应用,必须高度重视其安全性,加强储能系统的安全管理和技术创新。因此,文章探究和分析电力储能系统安全技术与应用,以期为电力储能系统提供理论支持和实践指导。
逸斌 黄
semanticscholar +1 more source
随着氢储能技术的成熟,绿色电力和绿色氢气模式的氢电耦合储能将成为理想的能源系统。氢电耦合储能系统(hydrogen-electricity coupling energy storage systems,HECESSs)建设是能源供应和深度脱碳的重要技术途径之一。在HECESS中,氢储能可以维持能源供需平衡,提高能源利用效率。但其在电力系统建立中的场景模型及相应的解决方法仍需深入研究。为加快HECESS建设,首先从制氢、氢气发电、储氢三个方面阐述了氢储能技术的应用现状。其次,基于氢能和电能的互补协同机制,
郑杰辉 +4 more
semanticscholar +1 more source
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
core +1 more source
虚拟同步发电机(virtual synchronous generator,VSG)型构网储能因其良好的阻尼与惯量支撑特性已被广泛关注,但VSG型构网储能难以抑制有功暂态存在的超调、振荡的同时削减有功稳态偏差,灵活性差。首先建立VSG型构网储能系统有功环的闭环小信号模型,由系统的特征方程、波特图以及根轨迹分析有功指令与电网频率扰动下的系统暂态与稳态特性。接着指出固定参数VSG型构网储能无法兼顾暂态存在的超调、振荡与稳态有功偏差。因此提出一种自适应VSG型构网储能控制策略 ...
赵炳洋, 赵波, 胡娟, 张芳
doaj
针对含质子交换膜燃料电池(proton exchange membrane fuel cell,PEMFC)的氢储能系统频率控制问题,为提高氢储能系统的频率稳定性,提出了一种基于虚拟参数自调节的系统频率控制策略。其中,电氢耦合系统以PEMFC为依托,光伏、储能电池为辅助,通过PEMFC、光伏、储能电池三者混合向系统综合负荷供电。通过数学模型构建,观察出系统内发生微小扰动后,PEMFC及储能电池的动态响应变化,改变虚拟控制参数,调整系统内的功率分配。由于PEMFC和储能电池动态响应时间不同 ...
李建林 +4 more
doaj
增加陆地生态系统碳固定能力能有效缓解大气CO2升高引起的温室效应。以干旱区典型盐土和碱土为研究对象,通过室内土柱模拟试验,研究不同施用量脱硫石膏(0,10,20,21.78,30,40 t/hm2)对盐土和碱土生态系统碳储量(包括土壤碳储量和生物量碳储量)的影响。结果表明:与对照相比,施加脱硫石膏盐土总碳储量(C)降低8.78%~15.72%,其中以土壤有机碳储量降低为主;碱土总碳储量(C)增加5.00%~23.94%,其中以土壤无机碳增加为主。脱硫石膏施加后盐土总生物量碳储量(C)较对照平均降低23 ...
王著峰 +3 more
doaj
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
core +2 more sources
针对风电波动性、间歇性和难预测等严重冲击电网安全运行问题,提出一种利用变分模态分解(VMD)和自适应权重粒子群算法(APSO)获得风电场混合储能系统容量优化配置方法。首先,基于典型日风电输出功率,利用低通滤波法得到满足标准的目标并网功率并获得储能系统参考功率。然后,将其通过VMD分解为高、低频功率,由超级电容器和蓄电池承担。最后,考虑储能充放电功率与荷电状态(SOC)等约束,建立以系统年综合成本最小为目标的容量优化配置模型,采用APSO算法求解并分析最优分界点和对应的储能配置方案 ...
赵峰, 张帆, 陈小强, 王英
doaj

