Results 31 to 40 of about 2,468 (150)
Simulation analysis of the relationship between the sampling time and tracking error of the model predictive control in inverter [PDF]
, 2017 模型预测控制（Model Predictive Control,MPC）是电压型逆变器（Voltage Source Inverter,VSI）电流跟随控制装置定频调制的典型方法,得到了广泛的应用。论文使用统计的方法研究MPC的采样时间与跟踪误差（方差）的函数关系。该函数关系是研究和解决逆变器切换优化问题的基础。仿真结果可得出采样时间与跟踪误差呈线性关系的结论。Model Predictive Control （MPC） is a typical method of voltage source ...
吴奕锴, 吴靖南, 康文
core +1 more source
Application and Prospect of Flexible Transmission and Distribution Technology in Internet Data Center [PDF]
, 2023 [Introduction] As an important thrust of China's "new infrastructure", internet data centers have ushered in opportunities for vigorous development and become new areas of energy use, putting forward higher requirements for the power supply level and ...
Deyang CHEN +7 more
core +1 more source
Discharge characteristics and discharge simulation model of long air gaps containing a floating conductor [PDF]
, 2022 Long air gaps containing a floating conductor are common insulation types in power grids. During the transmission line live-line work, the process of lineman entering the transmission line air gap constitutes a live-line work combined air gap, which is a
Gao, Jiachen <1995>
core +1 more source
Summary of Desert Photovoltaic Power Transmission Technology [PDF]
To achieve carbon peaking and carbon neutrality goals and improve energy efficiency, new energy plays a major role in China strategic deployment. However, as centralized photovoltaic is located in desert areas, photovoltaic power transmission has become ...
CHU Shuai +5 more
core +1 more source
Dianci bileiqi, 2023 随着我国直流输电技术快速发展，多项直流输电工程投入运行，形成了“强直弱交”的电网特征。直流输电线路双极闭锁会造成送端系统换流站母线电压升高，而电压上升幅度与直流输送容量相关，因此送端系统暂态电压升高导致实际直流输送容量小于额定值。本研究提出了一种基于新型磁控电抗器的送端系统暂态电压升高抑制方法，并以鲁固直流为试验对象开展仿真试验，仿真结果表明，未接入新型磁控电抗器时，最大直流输送容量为7 500 MW,接入合适容量新型磁控电抗器后，最大直流输送容量提升至额定容量10 000 MW。
窦宇宇 +5 more
doaj
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Photodetectors, based on GaAs nanowires (NWs), hold significant promise in the fields of high integration micro‐ and nano‐optoelectronics applications because of their outstanding electronic and optical properties. To date, significant efforts have been directed toward enhancing the performance of photodetectors, aiming for high detectivity ...
Yu Hao +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT With the continuous advancement of materials science and technology, the rare metal gallium has increasingly emerged as a promising alternative to the toxic metal mercury. Although existing research has predominantly focused on the high electrical conductivity and excellent deformability of liquid metal (LM), its intrinsic fluidic property ...
Feifan Guo +6 more
wiley +1 more source
Design and Implementation of Online Monitoring System for HVDC Breaker Based on GPRS and PAC [PDF]
, 2014 近年来随着我国坚强智能电网的快速建设和发展，越来越多的系统应用环节需要使用远程在线监控技术，人们对远程监控的实时性、可靠性和功耗的要求也越来越严格。高压直流开关作为高压直流输电网络中的重要组成部分，对它的各项基本参数和运行状态参数的测量也一直是直流输电技术的研究难点之一，主要原因在于：（1）信号采集困难：它是高压设备，作用时会释放巨大的能量；（2）信号传输困难：设备处于高压运行环境，与地面存在较大的绝缘间隔，无法使用有线通讯传输方式；（3）参数无法直接获得：设备自身没有相应的信号传感设备 ...
许登华
core
Gaoya dianqi, 2003 在最近20年内高压直流晶闸管阀和高压直流输电技术的发展,使得用高压直流输电更经济、更可靠。越来越多的输电线路使用高压直流进行电力传输。现代的高压直流晶闸管阀以组件式结构、大功率和水冷晶闸管、智能晶闸管控制单元、全面的计算机阀控制和严格的试验为特征。容性换流技术、数字式光纤互感器、有源直流滤波器和连续可调交流滤波器的使用,有效地提高了高压直流输电的质量,产生了更健全的高压直流输电系统。作为新一代高压直流换流器的电压控制型换流器,使得小容量电力传输经济可行。
盛宝良 +4 more
doaj
Gaoya dianqi, 2014 随着±500 k V直流输电工程在中国电网上的可靠运行,直流输电的节能性、可靠性、稳定性得到验证;随着多项±800 k V特高压直流输电工程的顺利建成,中国在特高压直流输电线路的建设和工程运行中积累了丰富的经验。直流输电发展趋势向着超高电压、大电流（3 0004 500 A）方向发展,超高电压、大电流的直流输电换流阀的制造主要依靠国外技术。为了研制超高电压、大电流的直流输电换流阀,就必须研究超高电压、大电流的直流输电换流阀的结构、技术参数,借鉴先进技术,取长补短,研制拥有自主知识产权的新型超高电压 ...
葛亮 +4 more
doaj