公开(公告)号：US12015271B2

公开(公告)日：2024-06-18

申请号：US17500539

申请日：2021-10-13

Applicant: Tsinghua University

Inventor： Wenchuan Wu ,  Boming Zhang ,  Zihao Li ,  Hongbin Sun ,  Bin Wang ,  Qinglai Guo

IPC: H02J3/00 ,  G05B17/02 ,  G06F17/12

CPC classification number: H02J3/001 ,  G05B17/02 ,  G06F17/12 ,  H02J2203/20

Abstract: The disclosure provides power distribution network reliability index calculation method based on mixed integer linear programming. The method includes: establishing a model for optimizing reliability indexes of a power distribution network based on a mixed integer linear programming model, wherein the model comprises an objective function and constraint conditions, the objective function is for minimizing a system average interruption duration index (SAIDI); solving the model based on the objective function and the constraint conditions to obtain reliability indexes of the power distribution network; and controlling operation of the power distribution network based on the reliability indexes.

公开(公告)号：US11514206B2

公开(公告)日：2022-11-29

申请号：US17136941

申请日：2020-12-29

Applicant: Tsinghua University

Inventor： Wenchuan Wu ,  Boming Zhang ,  Zihao Li ,  Hongbin Sun ,  Bin Wang ,  Qinglai Guo

IPC: G05B19/042 ,  H02J3/00 ,  G06F30/13

Abstract: The disclosure provides a method for planning a power distribution network, an apparatus for planning a power distribution network, and a storage medium. The method includes: establishing a model for planning the power distribution network, the model including a target function and constraints, the target function for minimizing a cost of the power distribution network when branches and nodes are installed into the power distribution network, the nodes including transformers and substations, the constraints including a power balance constraint of the power distribution network, a power constraint of the branches, a power constraint of the transformers, a radial operation constraint of the power distribution network, a fault constraint, a calculation constraint of indices of a reliability, a constraint of the indices of the reliability, and a logic constraint; and solving the model to determine whether the branches and the nodes are installed into the power distribution network.

公开(公告)号：US11954409B2

公开(公告)日：2024-04-09

申请号：US17366199

申请日：2021-07-02

Applicant: Tsinghua University

Inventor： Wenchuan Wu ,  Boming Zhang ,  Zihao Li ,  Hongbin Sun ,  Bin Wang ,  Qinglai Guo

IPC: G06F30/18 ,  G06F111/04 ,  G06F113/04 ,  G06F119/02 ,  G06Q10/0631 ,  G06Q50/06 ,  H02J3/00 ,  G06F111/06 ,  G06Q50/08

CPC classification number: G06F30/18 ,  G06Q10/06313 ,  G06Q50/06 ,  H02J3/00125 ,  G06F2111/04 ,  G06F2111/06 ,  G06F2113/04 ,  G06F2119/02 ,  G06Q50/08 ,  H02J2203/20 ,  Y02E60/00 ,  Y04S40/20

Abstract: The present disclosure provides a method for planning a distribution network with reliability constraints based on a feeder corridor, including determining installation states of respective elements in the distribution network; determining an objective function, the objective function being an objective function of minimizing a total investment cost of the distribution network; obtaining fault-isolation-and-load-transfer time and fault recovery time in a case where the feeder segment of each feeder line that is contained in each feeder corridor fails; determining constraint conditions including reliability constraints; building a distribution network planning model according to the objective function and the constraints; and solving the distribution network planning model built to obtain optimal solutions as planning states and reliability indexes to plan the distribution network.

公开(公告)号：US12124978B2

公开(公告)日：2024-10-22

申请号：US17555498

申请日：2021-12-19

Applicant: Tsinghua University

Inventor： Wenchuan Wu ,  Boming Zhang ,  Zihao Li ,  Hongbin Sun ,  Bin Wang ,  Qinglai Guo

IPC: G06Q10/04 ,  G05B19/042 ,  G06Q50/06 ,  H02J3/00

CPC classification number: G06Q10/04 ,  G05B19/042 ,  G06Q50/06 ,  H02J3/0012 ,  G05B2219/2639 ,  H02J2203/20

Abstract: The present disclosure provides a method for optimizing transformation of automation equipment in a power distribution network based on reliability, including determining installation states of respective components in the power distribution network and operation criterions for fault isolation, load transfer and fault recovery after a fault occurred in a feeder segment; determining a target function which is a target function for minimizing a total transformation cost of the power distribution network; determining constraint conditions including reliability constraints; establishing an optimization model for evaluating the reliability of the power distribution network based on the reliability constraints in accordance with the target function and the constraints; and solving the established optimization model for evaluating the reliability of the power distribution network based on the reliability constraints to obtain optimal solutions as optimization results of the automation transformation state of the circuit breaker and the switch and the reliability index.

公开(公告)号：US12204304B2

公开(公告)日：2025-01-21

申请号：US17724473

申请日：2022-04-19

Applicant: Tsinghua University

Inventor： Wenchuan Wu ,  Boming Zhang ,  Zihao Li ,  Hongbin Sun ,  Bin Wang ,  Qinglai Guo

IPC: G05B19/042

Abstract: A planning method for a power distribution automation system based on a reliability constraint is provided. The method includes: defining installation states of components and principles of a fault isolation, a load transfer and a fault recovery after a branch fault occurs; establishing a reliability evaluation optimization model for a power distribution network based on a mixed integer linear programming, the reliability evaluation optimization model comprising a target function and constraint conditions; solving the reliability evaluation optimization model to obtain an optimum planning scheme; and planning the power distribution automation system based on the optimum planning scheme.

公开(公告)号：US10146193B2

公开(公告)日：2018-12-04

申请号：US15609510

申请日：2017-05-31

Applicant: Tsinghua University

Inventor： Wenchuan Wu ,  Boming Zhang ,  Zihao Li ,  Hongbin Sun ,  Bin Wang ,  Qinglai Guo

IPC: F24F11/00 ,  G05B13/04 ,  G05D23/19 ,  G05F1/66 ,  F24F11/30 ,  F24F11/62 ,  F24F11/54 ,  H02J3/14 ,  F24F110/00 ,  F24F140/50

Abstract: The present disclosure relates to a method for primary frequency regulation of an electric network based on large building air conditioning loads cluster. The method includes the use of a two layer control structure with a central coordinating layer and a local control layer. Each local controller performs a thermal model parameter identification and a local air conditioning autonomous control, and uploads local information to the central controller at the end of each communication interval tgap, the central controller broadcasts coordinating information to each local controller. Based on the coordinating information sent from the central controller, each local controller determines whether a power deviation is beyond an action dead zone at the beginning of each action period tact, if beyond, then perform a frequency regulation control action, else, perform no action and estimate operation states of all the air conditionings at the beginning of the next action period.