Description: 在电力系统中，客户经常提出要实现电力系统监控主接线图的潮流实现。所谓潮流实现即是在电力监控系统的主接线图中能够动态反映各线路的运行情况，包含电流流动方向，各设备运行状态等。由于在水电站监控系统中很多用户提出要求能够反映发电机组的动态运行情况，即在主接线图中能够反映哪个机组正在运行。这里我采用贴图法进行动态贴图然后交替显示达到动态运行的目的。当然我们可以采用其他的很多方法，比如CDC类对象动态绘制等。 -in the power system, customers often made to achieve the main power system control diagram of the trend to achieve. To achieve the so-called trend that is the power of the main monitoring system wiring diagram to reflect the dynamic operation of the lines, including current flow direction, the device operation status. Due to the hydroelectric power system many users requesting units to reflect the dynamic operation, that is the main wiring diagram to reflect what units are running. Here I use dynamic mapping method shows tile then turn to a dynamic operating purposes. Of course, we can use many other methods, such as CDC category Dynamic Object Rendering so. Platform: |
Size: 223232 |
Author:ysh |
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Description: 支流调速系统的电直流电源原理图希望对于开发支流流调速系统的朋友有一点帮助。-Tributary of speed control system electrical schematics DC power supply hope for the development of tributary flow speed control system has a little friend to help. Platform: |
Size: 135168 |
Author:young |
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Description: 无功优化IEEE论文With the increased loading of existing power system, the problem of voltage stability
and voltage collapse has become a major concern in power system planning and operation. The
dependence of the system voltage profile on reactive power distribution forms the basis for reactive
power optimisation. The technique attempts to utilises fully the reactive power sources in the
system to improve the voltage profile and also to meet the reactive power requirements at the
AC–DC terminals to facilitate the smooth operation of DC links. The method involves successive
solution of steady-state power flows and optimisation of reactive power control variables with
unified power flow controllers using linear programming technique. The proposed method has-With the increased loading of existing power system, the problem of voltage stability
and voltage collapse has become a major concern in power system planning and operation. The
dependence of the system voltage profile on reactive power distribution forms the basis for reactive
power optimisation. The technique attempts to utilises fully the reactive power sources in the
system to improve the voltage profile and also to meet the reactive power requirements at the
AC–DC terminals to facilitate the smooth operation of DC links. The method involves successive
solution of steady-state power flows and optimisation of reactive power control variables with
unified power flow controllers using linear programming technique. The proposed method has
been tested on a real life equivalent 96-bus AC and a two terminal DC system. Platform: |
Size: 470016 |
Author:liuzhaohua |
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Description: 关于matlab simpowersystem的例子，有助于掌握matlab潮流计算-About matlab simpowersystem example, help to control power flow matlab Platform: |
Size: 124928 |
Author:小强 |
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Description: 优秀论文配套源码。分布式电源的接入使得配电系统从放射状无源网络变为分布有中小型电源的有源网络。带来了使单向流动的电流方向具有了不确定性等等问题，使得配电系统的控制和管理变得更加复杂。但同时，分布式电源又具有提高电网可靠性，绿色节能，等等优点，所以为更好的利用分布式电源为人类造福，我们必须对其进行研究与分析。
本文采取通过利用仿真软件Matlab编写计算潮流程序模拟分布式电源接入配电网的模型进行潮流计算的方法对分布式电源的稳态影响进行探索与分析。
选取了34节点的配电网网络模型，通过对单个以及多个分布式电源的接入位置以及容量的不同情况对34节点配电网的网损以及节点电压状况进行了分析。
-The distributed generation access to distribution system makes passive radial distribution network to active medium-sized power distribution network. It brings uncertainty to one-way direction power flow, etc., and it makes the control and management of the distribution system more complicated. Otherwise, it can bring a lot of benefits, such as more reliable, and it is green power. The distributed generation should be better known , so we can benefits more.
So the program called Matlab was used to compile a program to solve the power flow problem. By this program, we can text which factor can influence the distributed generation’s access to the distribution system.
The IEEE 34 Node model was chosen to be discussed how different factors can influence the power quality. This article analyzes distributed generation’s influence to the distribution system of energy lost and voltage level.
Platform: |
Size: 520192 |
Author:NBB |
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Description: 计及预防控制的电力系统最优潮流，OPF，考虑线路N-1故障-Account of prevention and control of power system optimal power flow, OPF, consider the fault lines N-1 Platform: |
Size: 2048 |
Author:白加林 |
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Description: This paper presents the Direct Power Control of
Three-Phase Matrix Converters (DPC-MC) operating as Unified
Power Flow Controllers (UPFC). Since matrix converters allow
direct AC/AC power conversion without intermediate energy
storage link, the resulting UPFC has reduced volume and cost,
together with higher reliability. Theoretical principles of DPCMC
method are established based on an UPFC model, together
with a new direct power control approach based on sliding mode
control techniques. As a result, active and reactive power can be
directly controlled by selection of an appropriate switching state
of matrix converter. This new direct power control approach
associated to matrix converters technology guarantees
decoupled active and reactive power control, zero error
tracking, fast response times and timely control actions.
Simulation results show good performance of the proposed
system. Platform: |
Size: 631808 |
Author:abdalla el-saadaney |
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Description: A hybrid fuzzy-PI controller for voltage source
converter based HVDC (VSC-HVDC) transmission system is
proposed in this paper. At first, the elementary model of VSCHVDC
is described. Then the fuzzy self-tuning control strategy is
proposed, in which direct current control strategy and dual
closed loop structure are designed in dq synchronous reference
frame. Independent control of the active and reactive power is
realized. Simulation results show that the designed control system
obtains satisfying performance, and the adjustments of power
flow could be achieved quicker than convention PI control. Platform: |
Size: 2249728 |
Author:Bidyut Hota |
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Description: The principal characteristic of VSC-HVDC transmission is its ability to independently control the reactive and real power flow at each of the AC systems to which it is connected, at the Point of Common Coupling (PCC). In contrast to line-commutated HVDC transmission, the polarity of the DC link voltage remains the same with the DC current being reversed to change the direction of power flow. Platform: |
Size: 70656 |
Author:jafar |
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Description: The training techniques, allows a wide range of use of the asynchronous machine with good
performance, tell her great robustness, reliability and electromagnetic low cost. The vector control
strategy takes into account the dynamic structure of the machine to have training systems robust high
performance. In the sensorless speed control of induction motors for the information of the rotor speed
and extracted the electrical terminals of the stator (voltage, current) .
Vector control of induction motors allows to reduce the control of an induction motor similar to that of
a machine with separate excitation current contained linear control, this control requires an estimate of
the amplitude and direction of flow in the rotor.
The estimated speed of the engine, which uses the MRAS technique based on reactive power, has been
proposed and used in this work to achieve this goal. -The training techniques, allows a wide range of use of the asynchronous machine with good
performance, tell her great robustness, reliability and electromagnetic low cost. The vector control
strategy takes into account the dynamic structure of the machine to have training systems robust high
performance. In the sensorless speed control of induction motors for the information of the rotor speed
and extracted the electrical terminals of the stator (voltage, current) .
Vector control of induction motors allows to reduce the control of an induction motor similar to that of
a machine with separate excitation current contained linear control, this control requires an estimate of
the amplitude and direction of flow in the rotor.
The estimated speed of the engine, which uses the MRAS technique based on reactive power, has been
proposed and used in this work to achieve this goal. Platform: |
Size: 204800 |
Author:zakary |
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Description: 主要讲解电网运行管理，各类相电厂运行控制，电网潮流短路及稳定分析计算-Mainly on power system operation management, operation with all types of plant control, short circuit and stability analysis of power flow calculation Platform: |
Size: 13167616 |
Author:李 |
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Description: Abstract— In an interconnected multi-area power system, as a
power load demand varies randomly, in the case of any small
sudden load change in any of the areas, both area frequency and
tie-line power flow interchange also vary. The main goals of Load
Frequency Control (LFC) are, to hold the frequency and the
desired power output in the interconnected power system at the
scheduled values and to control the change in the tie-line power
flow between control areas. The purpose of this paper is to
present basically an application of Fuzzy Logic Controller (FLC) Platform: |
Size: 433152 |
Author:Gomaa Haroun |
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Description: Frequency control as a major function of automatic generation control is one of the
important control problems in electric power system design and operation. Platform: |
Size: 2048 |
Author:Zawawy
|
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Description: 针对直流电网中的最优潮流问题，提出了一种基于模糊控制理论的自适应粒子群算法，以实现电网兼顾有功网损和电压质量的优化运行。(To solve optimal power flow problem in DC grid, an adaptive particle swarm optimization (PSO) algorithm based on fuzzy control theory is proposed in this paper, and optimal operation considering both power loss and voltage quality is realized.) Platform: |
Size: 302080 |
Author:阿飞之父 |
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Description: statcom connection
Abstract In deregulated power system, congestion management
is a major problem due to operational constraints.
Flexible AC transmission systems (FACTS) devices can be
a choice to control the power flow in congested lines. This
paper explores the use of two popular FACTS devices,
TCSC and STATCOM for power flow control in electrical
network and their capability to decongest the network. It
suggests the optimal location of TCSC and STATCOM
individually to relieve congestion with minimum power
losses, voltage regulation and cost of the device. The
proposed method has been verified on IEEE-14 bus system
for its effectiveness. Simulation work is carried out in
MATLAB software. Platform: |
Size: 7979 |
Author:Mariya |
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Description: ieee 14 bus
Abstract In deregulated power system, congestion management
is a major problem due to operational constraints.
Flexible AC transmission systems (FACTS) devices can be
a choice to control the power flow in congested lines. This
paper explores the use of two popular FACTS devices,
TCSC and STATCOM for power flow control in electrical
network and their capability to decongest the network. It
suggests the optimal location of TCSC and STATCOM
individually to relieve congestion with minimum power
losses, voltage regulation and cost of the device. The
proposed method has been verified on IEEE-14 bus system
for its effectiveness. Simulation work is carried out in
MATLAB software. Platform: |
Size: 29639 |
Author:Mariya |
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Search - control of power flow