Description: This paper present a Template Sparse Library for Power Systems (TSLPS) developed in C++. Its aim is to provide a
coherent platform for many power system applications such as Load Flow(LF), Short Circuit(SC), Optimal Power Flow(OPF)
and Transient Stability (TS). The TSLPS is inspired by the recent template numerical library but considers only power system
characteristics, eg for a class of large sparse symmetric matrices over real and complex numbers. Template facility of C++
is used to write a generic program on float, double and complex data types. The paper describes the generic code developed
and its impact on the power system applications. LF and SC analysis have been successfully applied to the solution of several
power systems and presented good computational performance. Platform: |
Size: 128000 |
Author:montather |
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Description: IEEE 39 bus data, line data and generator data for performing the power flow or load flow and optimal power flows Platform: |
Size: 5120 |
Author:ram |
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Description: Abstract—Series resonant DC-DC converter with clamped
capacitor voltage exhibits excellent characteristics in forward
operating mode including simple control, high reliability, soft
switching, high power density and inherently limited load fault
current. However, the conventional single angle phase-shift
modulation that works well in the forward mode cannot reverse
the power flow. In this paper, we propose a modulation strategy
for reverse mode operation by utilizing three phase-shift angles
afforded by the two active full bridges of the circuit. We identify
the optimal modulation trajectories in three-dimensional
modulation space and implement a look-up table based
modulator for power flow control. A high-fidelity simulation Platform: |
Size: 4461568 |
Author:sajitsanit |
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Description: 多端直流输电系统(multi-terminal DC，MTDC)为解决
大型风电基地功率外送的瓶颈问题提供了一个最佳解决方
案。研究了基于电压源换流器(voltage source converter，VSC)
的多端直流输电系统应用于大规模风电功率长距离外送时
的协调控制策略。通过构建一个四端系统连接两个大型风电
基地及本地电网向远方负荷中心进行功率输送，实现了风电
场的功率汇集和外送。仿真验证了该协调控制策略在大扰动
情况下，不仅能够提高VSC-MTDC系统潮流重新分配的能
力，而且可使风电场对直流网络提供一定功率支撑，增强了
电力系统动态稳定性
-Multi-terminal DC (MTDC) power transmission
system is regarded as the optimal solution scheme to sent out
power from large-scale wind farm. A coordinated control
strategy for voltage source converter (VSC) based MTDC
transmission system applied to long-distance power
transmission from large-scale wind farm is researched. By
means of constructing a four-terminal system connecting two
large-scale wind power bases with local power grid to send out
power to faraway load center, the wind power converging and
sending out by the proposed coordinated control strategy are
implemented. Simulation results show that the proposed
coordinated control strategy not only can improve the ability of
reallocating power flow in VSC-MTDC transmission system
under large disturbance, but also can make wind power base
providing a certain power support to DC transmission network,
thus the dynamic stability of power grid can be enhanced.
Platform: |
Size: 645120 |
Author:chenchen |
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Description: 电网内的多个风电场风速往往因为其地理位置的远近而有着不同程度的相关性，采用Ｎａｔａｆ
逆变换技术即可建立不同风电场之间具有相关性的风速分布样本空间，进而得到具有相关性的风
电场出力。在仿真过程中考虑风速的不确定性，将每个风电场出力视为一个负的满足威布尔随机
分布的负荷，根据历史数据，用方差—协方差矩阵描述不同风电场相关系数，建立最优潮流模型。
最后，在风电接入改进ＩＥＥＥ ３０及ＩＥＥＥ １１８节点系统中应用蒙特卡洛仿真计算，定量研究随着风
电场之间相关性的增强，最优潮流结果各项指标的波动情况。-Multiple wind speed within the grid often because of their geographical proximity and have different degrees of relevance, Nataf inverse transform using technology to build wind speed distribution between the sample space with different wind farms correlation, and then get relevant The wind farm output. Consider wind uncertainty in the simulation process, the output of each wind farm to meet the load as a negative Weibull random distribution, based on historical data, variance- covariance matrix of correlation coefficients describing different wind farms, the establishment of optimal fashion models. Finally, to improve access to wind power IEEE 30 and IEEE 118-node system Monte Carlo simulation, quantitative research with enhanced correlation between wind farms, OPF result of fluctuations in the indicators. Platform: |
Size: 510976 |
Author:mzx |
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Description: 将网损价格因子和网损协调系数引入目标函数,建立了改进直流潮流模型,实现了负荷在机组间的最优分配 利用交流潮流方法计算系统实际网损,并利用增量直流潮流模型将网损在机组间进行合理分摊 最后利用交直流迭代思想修正网损价格因子和网损协调系数以优化网损分配方案。IEEE14节点和IEEE118节点算例验证了该方法的可行性,算例结果充分逼近了交流最优潮流的计算结果,符合实际系统运行状况。-The net loss and net loss of coordination price factor introduced in the objective function coefficients, the establishment of an improved DC power flow model to achieve optimal distribution of load between units computing systems use the actual net loss of AC power flow method and the use of incremental DC power flow model Net loss reasonably apportioned among the crew Finally, AC-DC iteration thought the price factor correction network loss and net loss of coordination coefficients to optimize network loss allocation scheme. IEEE14 and IEEE118 node examples node to verify the feasibility of the method, numerical results approaching full AC optimal power flow calculation results, in line with the actual system operating conditions. Platform: |
Size: 804864 |
Author:杰 |
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Description: 2.1 optimal power flow analysis:
The main aim of Optimal Power flow (OPF) algorithm is to capture a steady state operating point. Generation cost, loss are curtailed by steady state operating point. Further, it also maximizes load ability preserving a suitable system representation in terms of parameters of generators (real and reactive powers, line flow limits, output of various compensating devices etc.) . Usually , classical optimization methods were used but as the technology has advanced and integration of FACTS devices in the power system, the traditional concepts and practices of power systems are placed over by an economic market management. . Therefore, OPF has become complex in nature. So, Artificial Intelligence (AI) methods are used which can solve higher complexity problem than OPF.
-2.1 optimal power flow analysis:
The main aim of Optimal Power flow (OPF) algorithm is to capture a steady state operating point. Generation cost, loss are curtailed by steady state operating point. Further, it also maximizes load ability preserving a suitable system representation in terms of parameters of generators (real and reactive powers, line flow limits, output of various compensating devices etc.) . Usually , classical optimization methods were used but as the technology has advanced and integration of FACTS devices in the power system, the traditional concepts and practices of power systems are placed over by an economic market management. . Therefore, OPF has become complex in nature. So, Artificial Intelligence (AI) methods are used which can solve higher complexity problem than OPF.
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Size: 4157440 |
Author:rezwan |
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Description: Optimal power flow based TU-CHP-PV-WPP coordination in view of wind speed, solar irradiance and load correlations Platform: |
Size: 1617920 |
Author:salam |
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Search - optimal load flow