Power Flow Analysis for Balanced Power Distribution Systems
    1.
    发明申请
    Power Flow Analysis for Balanced Power Distribution Systems 有权
    平衡配电系统的潮流分析

    公开(公告)号:US20120150497A1

    公开(公告)日:2012-06-14

    申请号:US12964849

    申请日:2010-12-10

    Applicant: Hongbo Sun

    Inventor: Hongbo Sun

    CPC classification number: H02J3/00 H02J2003/007 Y02E60/76 Y04S40/22

    Abstract: A method analyzes a model of a balanced power distribution system by transforming a model of the balanced distribution system with zero impedance branches to an equivalent model of the balanced power distribution system with non-zero impedance branches. Decoupled power mismatch equations with second orders are generated for each bus in the equivalent model. Power mismatches are determined using the bus power flow equations. The power mismatches are compared to a predetermined threshold. Then, for each bus, solving iteratively, if the comparing is true, the power mismatch equations to obtain a bus voltage magnitude correction and a bus phase angle correction until the comparing is false.

    Abstract translation: 通过将具有零阻抗分支的平衡分配系统的模型转换为具有非零阻抗分支的平衡配电系统的等效模型,分析了平衡配电系统的模型。 在等效模型中为每个总线产生具有第二阶的解耦功率失配方程。 功率不匹配使用总线功率流方程来确定。 将功率不匹配与预定阈值进行比较。 然后,对于每个总线,迭代地求解,如果比较为真,则获得总线电压幅度校正和总线相位角校正的功率失配方程直到比较为假。

    State Estimation for Power System Using Hybrid Measurements
    3.
    发明申请
    State Estimation for Power System Using Hybrid Measurements 有权
    使用混合测量的电力系统的状态估计

    公开(公告)号:US20130262001A1

    公开(公告)日:2013-10-03

    申请号:US13431045

    申请日:2012-03-27

    Abstract: A method determines voltages of buses of a power system. Values the voltages include a magnitude and a phase angle. The buses of the power system are grouped in a first area and a second area based on a type of measurement associated with each bus. The first area and the second area have at least one common bus, and wherein at least one bus in the first area is associated with a first type of measurement, and at least one bus in the second area is associated with a second type of measurement. Next, the method determines sequentially voltages of the buses of the first and the second areas.

    Abstract translation: 一种方法确定电力系统总线的电压。 电压值包括幅度和相位角。 基于与每个总线相关联的测量类型,电力系统的总线被分组在第一区域和第二区域中。 第一区域和第二区域具有至少一个公共总线,并且其中第一区域中的至少一个总线与第一类型的测量相关联,并且第二区域中的至少一个总线与第二类型的测量相关联 。 接下来,该方法依次确定第一和第二区域的总线的电压。

    Hybrid three-phase power flow analysis method for ungrounded distribution systems
    7.
    发明授权
    Hybrid three-phase power flow analysis method for ungrounded distribution systems 有权
    用于不接地配电系统的混合三相潮流分析方法

    公开(公告)号:US08965593B2

    公开(公告)日:2015-02-24

    申请号:US13366608

    申请日:2012-02-06

    Applicant: Hongbo Sun

    Inventor: Hongbo Sun

    CPC classification number: H02J3/06 H02J2003/007 Y02E60/76 Y04S40/22

    Abstract: A method for a three phase power flow analysis of an ungrounded power distribution system partitions a topology of the power distribution system into a mainline system and a set of tap systems, wherein the mainline system is formed by mainline buses connecting a swing bus and a set of constant active power and voltage magnitude (PV) buses, wherein the tap system is formed by one or many tap buses, such that a root bus of each tap system corresponds to a mainline bus. Next, the method determines voltages of the mainline buses based on a function of a total load of each tap system; and determines voltages of tap buses based on a voltage of the corresponding root bus of the mainline and load of each tap bus.

    Abstract translation: 一种用于不接地配电系统的三相电力潮流分析的方法将配电系统的拓扑分为主线系统和一组抽头系统,其中主线系统由连接摆动母线和组的主线总线形成 的恒定有功功率和电压幅值(PV)总线,其中抽头系统由一个或多个抽头总线形成,使得每个抽头系统的根总线对应于主线总线。 接下来,该方法基于每个抽头系统的总负载的函数来确定主线总线的电压; 并且基于主线的相应根总线的电压和每个抽头总线的负载来确定抽头总线的电压。

    Decoupled Three-Phase Power Flow Analysis Method for Unbalanced Power Distribution Systems
    8.
    发明申请
    Decoupled Three-Phase Power Flow Analysis Method for Unbalanced Power Distribution Systems 审中-公开
    不平衡配电系统的去耦三相潮流分析方法

    公开(公告)号:US20130226482A1

    公开(公告)日:2013-08-29

    申请号:US13404716

    申请日:2012-02-24

    CPC classification number: H02J3/26 Y02E40/50

    Abstract: Three phase power flow analysis of an unbalanced power distribution system decouples voltage changes resulting from nodal admittance matrix into one contribution from a real part, conductance matrix, and other contribution from an imaginary part, and a susceptance matrix. A first voltage change and second voltage change resulting from conductance and susceptance matrices are determined respectively. The voltages of a node of the power distribution system are determined as a combination of first and second voltages.

    Abstract translation: 不平衡配电系统的三相功率流分析将由节点导纳矩阵产生的电压变化从实部,电导矩阵以及来自虚部和电纳矩阵的其他贡献中分离出来。 分别确定由电导和电纳矩阵产生的第一电压变化和第二电压变化。 配电系统的节点的电压被确定为第一和第二电压的组合。

    Hybrid Three-Phase Power Flow Analysis Method for Ungrounded Distribution Systems
    9.
    发明申请
    Hybrid Three-Phase Power Flow Analysis Method for Ungrounded Distribution Systems 有权
    非接地配电系统的混合三相潮流分析方法

    公开(公告)号:US20130204556A1

    公开(公告)日:2013-08-08

    申请号:US13366608

    申请日:2012-02-06

    Applicant: Hongbo Sun

    Inventor: Hongbo Sun

    CPC classification number: H02J3/06 H02J2003/007 Y02E60/76 Y04S40/22

    Abstract: A method for a three phase power flow analysis of an ungrounded power distribution system partitions a topology of the power distribution system into a mainline system and a set of tap systems, wherein the mainline system is formed by mainline buses connecting a swing bus and a set of constant active power and voltage magnitude (PV) buses, wherein the tap system is formed by one or many tap buses, such that a root bus of each tap system corresponds to a mainline bus. Next, the method determines voltages of the mainline buses based on a function of a total load of each tap system; and determines voltages of tap buses based on a voltage of the corresponding root bus of the mainline and load of each tap bus.

    Abstract translation: 一种用于不接地配电系统的三相电力潮流分析的方法将配电系统的拓扑分为主线系统和一组抽头系统,其中主线系统由连接摆动母线和组的主线总线形成 的恒定有功功率和电压幅值(PV)总线,其中抽头系统由一个或多个抽头总线形成,使得每个抽头系统的根总线对应于主线总线。 接下来,该方法基于每个抽头系统的总负载的函数来确定主线总线的电压; 并且基于主线的相应根总线的电压和每个抽头总线的负载来确定抽头总线的电压。

    Power flow analysis for balanced power distribution systems
    10.
    发明授权
    Power flow analysis for balanced power distribution systems 有权
    平衡配电系统的潮流分析

    公开(公告)号:US08326594B2

    公开(公告)日:2012-12-04

    申请号:US12964849

    申请日:2010-12-10

    Applicant: Hongbo Sun

    Inventor: Hongbo Sun

    CPC classification number: H02J3/00 H02J2003/007 Y02E60/76 Y04S40/22

    Abstract: A method analyzes a model of a balanced power distribution system by transforming a model of the balanced distribution system with zero impedance branches to an equivalent model of the balanced power distribution system with non-zero impedance branches. Decoupled power mismatch equations with second orders are generated for each bus in the equivalent model. Power mismatches are determined using the bus power flow equations. The power mismatches are compared to a predetermined threshold. Then, for each bus, solving iteratively, if the comparing is true, the power mismatch equations to obtain a bus voltage magnitude correction and a bus phase angle correction until the comparing is false.

    Abstract translation: 通过将具有零阻抗分支的平衡分配系统的模型转换为具有非零阻抗分支的平衡配电系统的等效模型,分析了平衡配电系统的模型。 在等效模型中为每个总线产生具有第二阶的解耦功率失配方程。 功率不匹配使用总线功率流方程来确定。 将功率不匹配与预定阈值进行比较。 然后,对于每个总线,迭代地求解,如果比较为真,则获得总线电压幅度校正和总线相位角校正的功率失配方程直到比较为假。

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