搜索结果: 1-15 共查到“知识库 动力与电气工程 control”相关记录28条 . 查询时间(0.167 秒)
Control of Systems that Store Renewable Energy
Renewable energy storage control large deviations Markov chain occupation measure
2016/1/22
This paper studies the control of systems that store renew-able energy. The problem is to maximize the long-term util-ity of the energy by controlling how it is used. The method-ology for designing th...
Sulfur Dioxide Control by Electric Utilities: What Are the Gains from Trade?
Trade Electric Utilities
2015/9/18
Title IV of the 1990 Clean Air Act Amendments (CAAA) established
a market for transferable sulfur dioxide (SO,) emission allowances
among electric utilities. This market offers firms facing high mar...
In this article, we consider a fundamental decentralized optimal control problem, which we call the two-player problem. Two subsystems are interconnected in a nested information pattern, and output fe...
The inner structural characteristics of non-minimum phase DC-DC converters pose a severe limitation in direct regulation of voltage when addressed from a control perspective. This constraint is reflec...
深圳换流站、肇庆换流站极控独立快速通信通道（Improvement of Power Supplies for Directly Ultra-Speed Telecommunication at the Pole Control of Shenzhen Converter Station and Zhaoqing Converter Station）
高压直流输电 极控 DUST 直流电源
2010/8/17
介绍兴安直流输电工程深圳换流站、高肇直流输电工程肇庆换流站极控独立快速通信通道（directly ultra-speed telecommunication，DUST）通信电源系统的冗余性改造。基于在DUST电源在设计上的非冗余性，提出了相应的解决方案，并且通过试验进行验证、分析，证明其可行性及必要性。
基于全网协调优化的广东500 kV电网控制方案（Study on Optimized Coordinating Security and Stability Control Scheme of 500 kV Guangdong Power Grid）
协调优化 安全稳定控制 运行方式 500 kV电网
2010/8/17
分析了南方电网的送入直流及相关重要500 kV线路N-2故障，提出了省、网间协调优化的原则和建议，制定了广东500 kV电网安全稳定控制方案：广东电网安稳控制系统仅通过广东罗洞主站接受南网罗洞主站发送的切负荷命令，与南方电网其余的通信断开备用，并采取快速切除元件、改变运行方式等措施，以实现了三道防线间的优化配合。该方案简洁有效，且易于运行。
利用所建立的并联型APF在三相坐标系下的数学模型，通过分析发现常规PI控制下的并联型APF电流闭环传递函数中存在一个周期性的干扰信号，对系统的跟踪控制性能有显著的影响。为了消除干扰、改善系统的性能，采用补偿的方法构成新的PI控制系统，并在EMTDC/PSCAD环境下进行了仿真。结果表明，该补偿PI控制方法提高了APF的电流跟踪性能。
基于变频变压器的异步联网和潮流控制（VFT Based Asynchronous Grid Interconnection and Power Flow Control）
变频变压器 异步联网 潮流控制
2010/8/17
分析了变频变压器（variable frequency transformer，VFT）异步联网和控制潮流的基本原理，建立了VFT稳态运行时的数学模型，设计了VFT的转子转速控制器和传输功率控制器。然后，利用PSCAD/EMTDC软件，进行了VFT在传输功率跃变和短路故障下的仿真实验。仿真结果表明，VFT能够平稳地连接两个频率不同的异步电网，准确地控制电网间传输的潮流，并能够减轻一侧电网故障对另一...
Statistical analysis of the blast furnace process output parameter using arima control chart with proposed methodology of control limits setting
ARIMA control chart blast furnace process environmental aspects
2009/10/23
The paper deals with the statistical analysis of the selected parameter of the blast furnace process. It was proved that analyzed measurements have been autocorrelated. ARIMA control chart was selecte...
QUALITY CONTROL OF THE ELECTRO-DISCHARGE TEXTURING
quality control electro-discharge texturing mathematical model
2009/10/23
This paper deals with quality control of the electro-discharge texturing. Automobile manufacturers have strict
requirements for micro-geometry parameters of rolled metal plates from contractors of bo...
APPLICATIONS OF OXYGEN FOR NOX CONTROL AND CO2 CAPTURE IN COAL-FIRED POWER PLANTS
oxy-combustion CO2 capture NOx
2009/10/13
Two promising combustion modification approaches applicable to pulverized coal (PC) fired boilers are presented: "Oxygen-Enriched Combustion" (OEC) for NOx control and "Oxy-Combustion" (PC-OC) for CO2...
Water Pumping System with PLC and Frequency Control
Water Pumping System PLC Frequency Control
2010/1/15
Water Pumping System with PLC and Frequency Control.
直联式空压机PWM变占空比控制（Changing Duty Ratio PWM Control of Direct-drive Air Compressor）
直联式空压机 直流无刷电动机 变占空比
2009/8/11
研究了一种用直流无刷电动机驱动的直联式空压机，借鉴直接转矩控制的思想，根据直联式空压机负载的特点，提出了一种基于单片机的脉宽调制(PWM)变占空比控制方法。根据空压机负载，将控制周期中的每一拍设置成不同的占空比。给出了基于Simulink的仿真计算，仿真结果表明，这种控制方法简单可行，直联式空压机转速波动较小，且有较好的稳定性和抗干扰能力。试验结果表明，PWM变占空比控制能达到节约成本，提高效率，...
Voltage Control of Self-Excited Induction Generator using Genetic Algorithm
Asychronous generators Genetic Algorithm Self-excited induction generator
2009/7/28
Self-excited induction generators (SEIG) are found to be most suitable candidate for wind energy conversion application required at remote windy locations. Such generators are not able to maintain the...