Results 91 to 100 of about 2,993 (147)
Overview of Active Distribution Network Planning With High Proportion of New Energy Access [PDF]
The new energy is connected to the distribution network in the form of distributed generation, which brings uncontrollability, randomness and volatility to the system. With the help of modern power electronics, information and communication and automatic
GAI Xueyang +4 more
core +1 more source
Research on the Development Trends and Countermeasures of Integrated Energy Services [PDF]
ObjectivesWith the continuous advancement of the national “dual carbon” strategy, integrated energy services, as a new model and new form of the energy industry, are gradually becoming an important means for China to build a new energy system and create ...
KAN Yansheng +8 more
core +1 more source
野生动物学报, 2008 有蹄类动物营养生态学是一门正在兴起的新学科,是现代生态学领域研究动物食物数量和质量、营养适应以及营养对种群特征作用规律的分支学科。动物种群和其环境中食物资源的相互关系及作用机理构成了这一学科的基本研究内容。本文从食性分析、营养状况评价、食物营养质量评价、消化与能量代谢、取食行为、营养容纳量和营养生态位等主要方面对这一学科进行了探讨。
张明海, 李熠
doaj
Gaoya dianqi新能源出力所具有的高维性和不确定性制约了配电网对新能源的消纳能力，故需在配电网规划环节中充分考虑调度周期内各天各时段的新能源出力情况。为此，以典型场景集作为模拟运行场景，设计了一种计及源荷出力不确定性的配电网多目标随机规划方法：首先采用K-means聚类算法将历史场景聚为K种日状态类型，并得到相应概率分布；其次以日状态类型为条件，结合基于SN-CWGAN的场景生成方法生成考虑源荷高维相关性的场景集；进一步，构建配电网多目标两阶段随机规划模型，其中上层实现储能选址定容与新能源规划 ...
吴金木 +5 more
doaj
Gaoya dianqi, 2018 基于半桥子模块拓扑的模块化多电平电压源换流器（HBSM-MMC）和直流断路器构建的柔性直流电网能够实现大规模新能源的并网和消纳,发展前景良好。柔性直流电网技术的发展主要限制于高压直流断路器,因此对高压直流断路器开断过程以及开断能力影响因素的研究十分有必要。文中首先研究了适用于HBSM-MMC柔性直流电网的模块化混合型高压直流断路器运行原理;并在此基础上详细分析了模块化混合型直流断路器开断时间的影响因素;然后研究了直流断路器过电压的影响因素;最后在PSCAD ...
张军, 吴金龙, 王先为, 姚为正
doaj
Gaoya dianqi现代电网以消纳冲击性新能源、接入大功率非线性负荷为背景，冲击和谐波对PT安全运行提出更严峻考验。深入研究当前PT击穿故障成因刻不容缓，针对近年来配网PT击穿及爆炸事故频发、故障机理研究不深现状，从配网PT电路模型出发，详细剖析PT劣化缺陷诱因及防护措施的研究成果，归纳总结目前PT故障研究瓶颈，指出解决问题的新思路——挖掘PT缺陷底层逻辑，研究现代电网对PT端口的影响及PT冲击极端条件，结合数字化网络化技术提高PT自身振荡防护能力以适应现代电力设备智慧运维要求。
赵书涛, 周子煜
doaj
[Advances in Novel Disinfection Technologies for Biofilm-Associated Nosocomial Infections]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanKe D +8 more
europepmc +1 more source
[Extracellular matrix materials and tissue regeneration and repair]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhao L, Xie H.
europepmc +1 more source
[New Technologies and Application Developments in Sample Pretreatment for Public Health Laboratory Testing]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanShen Y +6 more
europepmc +1 more source
[Best evidence summary for management of sleep disorders in children with attention deficit hyperactivity disorder]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLin YT, Luo LH, Peng TQ, Tan CW, Lei H.
europepmc +1 more source