公开(公告)号：US20240195166A1

公开(公告)日：2024-06-13

申请号：US18537542

申请日：2023-12-12

Applicant: Battelle Memorial Institute

Inventor： Bhaskar Mitra ,  Nimat Shamim ,  Sheik Mohammad Mohiuddin ,  Manisha Maharjan ,  Ahmad Tbaileh ,  Quan H. Nguyen ,  Jinho Kim ,  Nader A. Samaan

IPC: H02H3/02 ,  H02H3/08

CPC classification number: H02H3/021 ,  H02H3/025 ,  H02H3/083

Abstract: Circuit breakers and associated methods are described. According to one aspect, a circuit breaker includes an input node configured to receive an AC waveform of electrical energy, an output node configured to output the AC waveform, mechanical breaker circuitry configured to selectively operate in a conductive state to conduct the AC waveform from the input node to the output node, switching circuitry configured to selectively operate in a conductive state to conduct the AC waveform from the input node to the output node, energy absorption circuitry coupled with the input node and the output node, wherein the mechanical breaker circuitry and the switching circuitry are changed from the conductive state to a non-conductive state after detection of a fault, and wherein the energy absorption circuitry is configured to dissipate electrical energy of the fault after the mechanical breaker circuitry and the switching circuitry are changed to the non-conductive state.

公开(公告)号：US20220140601A1

公开(公告)日：2022-05-05

申请号：US17518478

申请日：2021-11-03

Applicant: Battelle Memorial Institute

Inventor： Bharat GNVSR Vyakaranam ,  Tony B. Nguyen ,  Quan H. Nguyen ,  Nader A. Samaan ,  Mallikarjuna R. Vallem ,  Renke Huang

IPC: H02J3/00 ,  G06Q10/06 ,  H02J3/06

Abstract: A computer-implemented method includes extending simulation results and input data of a DC production cost model (PCM) of a power grid to an initial AC power flow model (PFM) using a generation distribution mapping and load distribution mapping of a related PFM base example associated with the PCM, and automatically producing a chronological series of converged AC PFM solutions associated with a PCM time series by, for each time step of the PCM time series: (i) updating inputs of an AC PFM using (a) PCM results of the current time step and (b) solution outputs of a converged AC PFM obtained from a previous PCM time step, and (ii) iteratively, reducing nodal loads by a gradual amount configured to account for power grid power flow losses unaccounted for by the PCM and performing AC PFM numerical analyses, until: (a) an AC PFM convergence is obtained and (b) a real power generation slack bus is less than or equal to a predefined tolerance in relation to a slack bus of the PCM results of the current time step.