公开(公告)号：US20180309294A1

公开(公告)日：2018-10-25

申请号：US15577127

申请日：2017-06-16

Applicant: Northeastern University

Inventor： Huaguang ZHANG ,  Jun YANG ,  Qiuye SUN ,  Feiye WU ,  Xinrui LIU ,  Dongsheng YANG ,  Zhiliang WANG ,  Jian FENG ,  Bonan HUANG ,  Yanhong LUO ,  Guotao HUI ,  Zhenwei LIU

IPC: H02J3/18 ,  H02J3/16 ,  G05F1/14

CPC classification number: H02J3/1885 ,  G05F1/14 ,  H02J3/16 ,  H02J3/18 ,  H02J3/1878 ,  H02J2003/007

Abstract: The invention provides a reactive power optimization system and a method of a power grid based on a double-fish-swarm algorithm. The system includes a power grid state data acquiring module, a reactive power regulating module and a reactive power executing module. The power grid state data acquiring module includes a power grid state data acquisitor and a relay transmitter. The reactive power regulating module is a control terminal. The reactive power executing module includes generator terminal voltage regulators, transformer tap regulators and reactive power compensation regulators. The method is used for acquiring the initial data to be optimized in the current network; and optimizing the initial data to be optimized in the current network based on a double-fish-swam algorithm so as to obtain optimal value of control variables in the power grid. According to the method, the distribution network to be optimized can realize reasonable reactive power flow distribution.

公开(公告)号：US20190293699A1

公开(公告)日：2019-09-26

申请号：US16120907

申请日：2018-09-04

Applicant: Northeastern University

Inventor： Huaguang ZHANG ,  Jun YANG ,  Jie BAI ,  Gang WANG ,  Qiuye SUN ,  Xinrui LIU ,  Yingchun WANG ,  Dongsheng YANG ,  Zhiliang WANG ,  Bonan HUANG ,  Zhanshan WANG ,  Yanhong LUO

IPC: G01R21/133

Abstract: The invention provides an electric grid state estimation system and method based on a boundary fusion. The system includes an electric grid data acquisition module, a communication module including a local data unit and a state estimation unit, and a data fusion module, wherein the state estimation unit includes a memory storing a state estimation program and a display displaying a program running and outputting a state variable; the state estimation program is performed to realize an electric grid state estimation; the estimation method includes the following steps of dividing a regional electric grid, then establishing a measurement equation for each region, solving an internal quantity and a boundary quantity, fusing the boundary quantities of two regions, correcting the boundary quantity, performing a non-linear transformation on the intermediate variable, solving the estimated values of the state variable by the least square method, and performing outputting.