公开(公告)号：US20090182518A1

公开(公告)日：2009-07-16

申请号：US12013629

申请日：2008-01-14

申请人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Chung-Hsiung Chen

发明人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Chung-Hsiung Chen

IPC分类号： G01R21/06

CPC分类号： H02J3/06 ,  G01R19/2513 ,  H02J3/1814 ,  Y02E40/16 ,  Y02E40/18

摘要： A method to incorporate the steady-state model of the generalized power flow controller into a Newton-Raphson power flow algorithm is disclosed. The disclosed method adopts a flexible steady-state model of the generalized power flow controller, which can be applied to calculate the power flow solution of a power grid embedded with STATCOM, UPFC, GUPFC and the generalized power flow controller in a single framework. The disclosed method only incorporates the control variables of the shunt voltage sourced converter into the state vector of Newton-Raphson power flow algorithm. The increment of state variables due to incorporating the generalized power flow controller is less than the prior art. Further, the method can preserve the quadratic convergence characteristic of the Newton-Raphson power flow algorithm after embedding the generalized power flow controller into a power grid.

摘要翻译： 公开了将广义潮流控制器的稳态模型并入牛顿 - 拉夫逊幂流算法中的方法。 所公开的方法采用广义潮流控制器的灵活稳态模型，可以应用于单个框架中计算嵌入STATCOM，UPFC，GUPFC和广义潮流控制器的电网的潮流解决方案。 所公开的方法仅将分流电压源转换器的控制变量合并到Newton-Raphson功率流算法的状态向量中。 归结于广义潮流控制器的状态变量增量小于现有技术。 此外，该方法可以将广义潮流控制器嵌入到电网中后，可以保持牛顿 - 拉夫逊潮流算法的二次收敛特性。

公开(公告)号：US07813884B2

公开(公告)日：2010-10-12

申请号：US12013629

申请日：2008-01-14

申请人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Chung-Hsiung Chen

发明人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Chung-Hsiung Chen

IPC分类号： G01R21/06

CPC分类号： H02J3/06 ,  G01R19/2513 ,  H02J3/1814 ,  Y02E40/16 ,  Y02E40/18

摘要： A method to incorporate the steady-state model of the generalized power flow controller into a Newton-Raphson power flow algorithm adopts a flexible steady-state model of the generalized power flow controller, which can be applied to calculate the power flow solution of a power grid embedded with STATCOM, UPFC, GUPFC and the generalized power flow controller in a single framework. The method only incorporates the control variables of the shunt voltage sourced converter into the state vector of the Newton-Raphson power flow algorithm. The increment of the state variables due to incorporating the generalized power flow controller is less than the prior art. Further, the method can preserve the quadratic convergence characteristic of the Newton-Raphson power flow algorithm after embedding the generalized power flow controller into a power grid.

摘要翻译： 将广义潮流控制器的稳态模型纳入牛顿 - 拉夫逊潮流算法的方法采用广义潮流控制器的灵活稳态模型，可以应用于计算功率流动解 在单个框架中嵌入STATCOM，UPFC，GUPFC和广义潮流控制器的网格。 该方法仅将分流电压源转换器的控制变量合并到牛顿 - 拉夫逊幂流算法的状态向量中。 归结于广义潮流控制器的状态变量的增量小于现有技术。 此外，该方法可以将广义潮流控制器嵌入到电网中后，可以保持牛顿 - 拉夫逊潮流算法的二次收敛特性。

公开(公告)号：US20060047370A1

公开(公告)日：2006-03-02

申请号：US10927359

申请日：2004-08-26

申请人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

发明人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

IPC分类号： G06G7/54 ,  H02J3/00

CPC分类号： H02J3/00 ,  H02J2003/001 ,  H02J2003/003

摘要： Given the current operating condition at each bus from real-time database, from the short-term load forecast, or from near-term generation dispatch, we present a method for real-time contingency prediction and selection in current energy management systems. This method can be applied to contingency prediction and selection for the near-term power system in terms of load margins to collapse and of the bus voltage magnitudes. The propose algorithm uses only two tangent vectors of power flow solutions and curve fitting based techniques to perform look-ahead load margin and voltage magnitude simultaneously. Therefore, it can overcome the traditional snap-shot contingency analysis methods. Simulations are performed on IEEE 57 and 118-bus test systems to demonstrate the feasibility of this method.

摘要翻译： 给出了实时数据库中每条总线的当前运行状况，短期负荷预测或短期发电调度情况，提出了一种在当前能源管理系统中进行实时应变预测和选择的方法。 这种方法可以应用于近期电力系统的负荷余量和总线电压幅度的应急预测和选择。 提出的算法仅使用功率流解决方案的两个切线向量和基于曲线拟合的技术来同时执行预先的负载裕度和电压幅度。 因此，它可以克服传统的快照应急分析方法。 在IEEE 57和118总线测试系统上进行仿真，以证明该方法的可行性。

公开(公告)号：US20070027642A1

公开(公告)日：2007-02-01

申请号：US11183051

申请日：2005-07-15

申请人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

发明人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

IPC分类号： G01R21/06

CPC分类号： H02J3/00 ,  H02J2003/007 ,  Y02E60/76 ,  Y04S40/22

摘要： Power flow models of Interline Power Flow Controllers (IPFC) for large-scale power systems are studied, in details. Mathematical models of the IPFC, using the d-q axis decompositions of control parameters are derived. In this framework, for each IPFC, only two control parameters are added to the unknown vector in the iteration formula and the quadratic convergence characteristic is preserved. Simulations results from several practical large-scale power systems embedded with multiple Convertible Static Compensators (CSCs) demonstrate the effectiveness of the proposed models. Comparisons with existing models are made to elucidate the performance of the convergence.

摘要翻译： 详细研究了大型电力系统的线间流量控制器（IPFC）的功率流模型。 导出IPFC的数学模型，使用控制参数的d-q轴分解。 在这个框架下，对于每个IPFC，在迭代公式中只有两个控制参数被添加到未知向量，并且二次收敛特性被保留。 嵌入多台可转换静态补偿器（CSC）的几个实际的大型电力系统的仿真结果证明了所提出的模型的有效性。 与现有模型进行比较，以阐明融合的性能。

公开(公告)号：US07321834B2

公开(公告)日：2008-01-22

申请号：US11183051

申请日：2005-07-15

申请人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

发明人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

IPC分类号： H02J3/04

CPC分类号： H02J3/00 ,  H02J2003/007 ,  Y02E60/76 ,  Y04S40/22

摘要： Power flow models of Interline Power Flow Controllers (IPFC) for large-scale power systems are studied, in details. Mathematical models of the IPFC, using the d-q axis decompositions of control parameters are derived. In this framework, for each IPFC, only two control parameters are added to the unknown vector in the iteration formula and the quadratic convergence characteristic is preserved. Simulations results from several practical large-scale power systems embedded with multiple Convertible Static Compensators (CSCs) demonstrate the effectiveness of the proposed models. Comparisons with existing models are made to elucidate the performance of the convergence.

摘要翻译： 详细研究了大型电力系统的线间流量控制器（IPFC）的功率流模型。 导出IPFC的数学模型，使用控制参数的d-q轴分解。 在这个框架下，对于每个IPFC，在迭代公式中只有两个控制参数被添加到未知向量，并且二次收敛特性被保留。 嵌入多台可转换静态补偿器（CSC）的几个实际的大型电力系统的仿真结果证明了所提出的模型的有效性。 与现有模型进行比较，以阐明融合的性能。

公开(公告)号：US20060229767A1

公开(公告)日：2006-10-12

申请号：US11240582

申请日：2005-09-30

申请人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

发明人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

IPC分类号： H02J3/00

CPC分类号： H02J3/1814 ,  H02J3/00 ,  H02J3/1871 ,  H02J2003/007 ,  Y02E40/18 ,  Y02E60/76 ,  Y04S40/22

摘要： A method for calculating power flow solution of a power transmission network with unified power flow controllers is adapted to calculate the power flow on a large-scale power transmission network. The unified power flow controller has a series transformer, a series converter, a direct current coupling capacitor, a shunt converter, and a series transformer. The shunt transformer is connected electrically to a sending-end bus. The series transformer is connected electrically to the sending-end bus and a receiving-end bus. The unified power flow controller is represented by equivalent active and reactive loads on the sending-end and receiving-end buses of the power transmission network.

摘要翻译： 用于计算具有统一功率流量控制器的输电网络的功率流解决方案的方法适于计算大型输电网络上的功率流。 统一功率流量控制器具有串联变压器，串联转换器，直流耦合电容器，并联转换器和串联变压器。 并联变压器与发送端总线电连接。 串联变压器与发送端总线和接收端总线电连接。 统一功率流量控制器由输电网络的发送端和接收端总线上的等效有功和无功负载表示。

公开(公告)号：US07177727B2

公开(公告)日：2007-02-13

申请号：US11240582

申请日：2005-09-30

申请人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

发明人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

IPC分类号： H02J3/04 ,  G08B21/00

CPC分类号： H02J3/1814 ,  H02J3/00 ,  H02J3/1871 ,  H02J2003/007 ,  Y02E40/18 ,  Y02E60/76 ,  Y04S40/22

摘要： A method for calculating power flow solution of a power transmission network with unified power flow controllers is adapted to calculate the power flow on a large-scale power transmission network. The unified power flow controller has a series transformer, a series converter, a direct current coupling capacitor, a shunt converter, and a series transformer. The shunt transformer is connected electrically to a sending-end bus. The series transformer is connected electrically to the sending-end bus and a receiving-end bus. The unified power flow controller is represented by equivalent active and reactive loads on the sending-end and receiving-end buses of the power transmission network.

摘要翻译： 用于计算具有统一功率流量控制器的输电网络的功率流解决方案的方法适于计算大型输电网络上的功率流。 统一功率流量控制器具有串联变压器，串联转换器，直流耦合电容器，并联转换器和串联变压器。 并联变压器与发送端总线电连接。 串联变压器与发送端总线和接收端总线电连接。 统一功率流量控制器由输电网络的发送端和接收端总线上的等效有功和无功负载表示。

公开(公告)号：US20060282239A1

公开(公告)日：2006-12-14

申请号：US11148084

申请日：2005-06-08

申请人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

发明人： Chia-Chi Chu ,  Sheng-Huei Lee ,  Hung-Chi Tsai

IPC分类号： G06F17/10

CPC分类号： H02J3/36 ,  Y02E40/16 ,  Y02E60/60

摘要： The power flow model of the multiterminal voltage-source converter-based high voltage DC (M-VSC-HVDC) transmission system for large-scale power systems is studied. The mathematical model is derived using the d-q axis decomposition of HVDC's control parameter. The developed model can be applied to all existing shunt voltage-source converter (VSC) based controllers, including Static Synchronous Compensator (STATCOM), point-to-point HVDC system, back-to-back HVDC system and multiterminal HVDC system. A unified procedure is developed for incorporating the proposed model into the conventional Newton-Raphson power flow solver. The IEEE 300-bus test system embedded with multiple HVDC transmission systems under different configurations are investigated. Simulation results reveal that the proposed model is effective and accuracy in meeting various control objectives.

摘要翻译： 研究了大容量电力系统多电压电压源转换器高压直流（M-VSC-HVDC）传输系统的功率流模型。 数学模型使用HVDC控制参数的d-q轴分解得出。 开发的模型可以应用于所有现有的并联电压源转换器（VSC）控制器，包括静态同步补偿器（STATCOM），点对点HVDC系统，背靠背HVDC系统和多终端HVDC系统。 开发了将所提出的模型纳入常规牛顿 - 拉夫逊幂流解算器的统一程序。 研究了在不同配置下嵌入多个HVDC传输系统的IEEE 300总线测试系统。 模拟结果表明，提出的模型在实现各种控制目标方面是有效和准确的。