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联络线路
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     On the basis of direct feedback linearization and H_∞ control theory, a supplementary controller for HVDC in integrated AC-DC power transmission system is resear- ched, a non-linear robust control model for two-area system containing the AC-DC tie-line is established and its control method is obtained by H_∞ control theory and Matlab software.
     基于直接反馈线性化和 H_∞控制理论研究了交直流联合输电系统中高压直流(HVDC)系统的附加控制器的设计,对含有交直流联络线路的两区域系统建立了非线性鲁棒控制模型。 利用 H_∞控制理论和 Matlab 软件得出控制律。
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     PROTECTION EQUIPMENT FOR1 1 0 k V SUPER-SHORT TIE-LINE
     110kV超短联络线路保护配置
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     Based on the information of several substations,such as the currents and voltages of power lines,switch states and so on,the coordinating BZT among several substations can be realized. It greatly increases the reliability and flexibility of power supply.
     本装置具有通信功能 ,可以与其他变电站的远方备用电源自动投入装置交换信息 ,更能够根据多个协调变电站之间联络线路及电源进出线路的电流、电压和开关位置等信息 ,实现多个变电站之间的备自投 ,大大地提高了供电可靠性、灵活性
短句来源
     After the trip of the tie line breaker caused by syntony,a series of faults ocurred in a power plant under the operating condition of single generator with heavy plant loads,such as auxiliary transformer tripping, standby transformer short-circuit and generator burnout and so on.
     阐述了某电厂由于谐振造成联络线路断路器跳闸后,发电机单机带厂用电重负荷运行情况下,出现厂用变压器跳闸、备用变压器短路及发电机被烧毁等一系列故障。
短句来源
     Finally, we introduce the not well-known concept of damping coefficients matrix and re-deduce its analytical forms in a two-generator system, then it is concluded that damping of a power system not only depends on models and parameters of the system itself, but also depends on reactance of tie-lines, as well as parameters of other systems participating in interconnection with this system.
     文中通过对多机系统阻尼系数矩阵的分析还得知:在系统互联的情况下,考虑一个系统的电磁阻尼时,不仅要研究本系统的模型、参数,还要考虑联络线路阻抗以及参与互联的其他系统模型参数对本系统阻尼的影响。
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     PROTECTION EQUIPMENT FOR1 1 0 k V SUPER-SHORT TIE-LINE
     110kV超短联络线路保护配置
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     The Debate of Cultural Routes
     文化线路辨析
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     An Approach to CAD in Electronic Circutis
     电子线路CAD
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     On intention liaison among the joint criminal persons
     论共同犯罪人的意思联络
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     The connection map of a vector manifold
     向量丛上的联络映射
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  link circuit
A new quasi resonant dc link circuit together with a sinusoidal PAM for an inverter fed drive are proposed in order to reduce the power losses in the machine and in the inverter.
      
In the absence of controllable power circuits that absorb the regenerated power from the dc link circuit, the method of dc braking can be used.
      
These effects are classified as interconnect noise because they emanate from interconnection wires used to link circuit elements on-chip.
      
The braking torque produces negative shaft power which is regenerated by the motor and fed through the inverter into the dc link circuit.
      
We are developing a Serial Link circuit block to provide this IC-to-IC physical link.
      


A minimum production cost model which can be used to evaluate economical energy exchanges and production cost saving in multiple area interconnected systems is proposed in this paper. A fast probabilistic production simulation model is used to determine the thermal incremental cost of each system. Based on the thermal incremental cost of each system,a nonlinear optimization model which minimizes the total production cost of the interconnected systems is used to determine economical energy exchanges among area...

A minimum production cost model which can be used to evaluate economical energy exchanges and production cost saving in multiple area interconnected systems is proposed in this paper. A fast probabilistic production simulation model is used to determine the thermal incremental cost of each system. Based on the thermal incremental cost of each system,a nonlinear optimization model which minimizes the total production cost of the interconnected systems is used to determine economical energy exchanges among area systems. Then total production cost and cost saving are assessed. The proposed minimum cost model has been incorporated into FEPSS (Fast Electrcity Production Simulation System) package and used by the Pacific Power Corporation,Australia.

本文介绍一种采用随机概率模拟方法和最优化方法相结合的多区联网最小电力生产费用模拟模型。该模型采用随机概率模拟方法计算每个区域电网发电费用增量曲线。然后根据区域电网发电费用增量曲线和每小时负荷,求解一个非线性最优化主问题,在电力电量平衡,区域电网间联络线容量限制和输电损失等约束条件下,求使联网系统总的电力生产费用最小的各联络线路上电力交换容量。最后,根据联网后各区域电网的电力负荷进行生产模拟,联网前后系统总生产费用之差就是联网的经济效益。

The technical features of remote BZT equipment (automatic switchover of standby power source) are introduced.When two substations are operating in open loop mode with two power lines in serials, the normal BZT equipment can only realize the automatic switchover function of the substation at the open point.The remote BZT equipment has communication function and may exchange the data with the remote BZT equipment at other substation.Based on the information of several substations,such as the currents and voltages...

The technical features of remote BZT equipment (automatic switchover of standby power source) are introduced.When two substations are operating in open loop mode with two power lines in serials, the normal BZT equipment can only realize the automatic switchover function of the substation at the open point.The remote BZT equipment has communication function and may exchange the data with the remote BZT equipment at other substation.Based on the information of several substations,such as the currents and voltages of power lines,switch states and so on,the coordinating BZT among several substations can be realized.It greatly increases the reliability and flexibility of power supply.

介绍了远方备用电源自动投入装置的技术特点。常用的备用电源自动投入装置 ,在两电源线路之间串接的 2个变电站开环运行时 ,只能满足在开环处变电站具有自动投入的功能 ,另一个变电站上级电源线路故障无法自投。本装置具有通信功能 ,可以与其他变电站的远方备用电源自动投入装置交换信息 ,更能够根据多个协调变电站之间联络线路及电源进出线路的电流、电压和开关位置等信息 ,实现多个变电站之间的备自投 ,大大地提高了供电可靠性、灵活性

On the basis of direct feedback linearization and H_∞ control theory, a supplementary controller for HVDC in integrated AC-DC power transmission system is resear- ched, a non-linear robust control model for two-area system containing the AC-DC tie-line is established and its control method is obtained by H_∞ control theory and Matlab software. Analytical results show that using the presented method the robustness of control system and the stability of AC power transmission system are improved.

基于直接反馈线性化和 H_∞控制理论研究了交直流联合输电系统中高压直流(HVDC)系统的附加控制器的设计,对含有交直流联络线路的两区域系统建立了非线性鲁棒控制模型。利用 H_∞控制理论和 Matlab 软件得出控制律。分析表明这种控制方法提高了交直流输电系统的稳定性及控制系统的鲁棒性。

 
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