#NORTH CHINA ELECTRIC POWER UNIVERSITY

Control method for energy storage converter

The present disclosure relates to a control method for an energy storage converter. The method includes: determining a current fault component; determining a voltage fault component; determining a fau…

DRIVE·Jun 4·1 min read

H02J3/0012 NORTH CHINA ELECTRIC POWER UNIVERSITY

METHOD AND SYSTEM FOR TRACKING THE OSCILLATION PATH OF A DIRECT DRIVE WIND FARM

A method and system for tracking the oscillation path of a direct drive wind farm involve: collecting the port current, the current and state variables of the current inner loop, the dynamic angle and…

DRIVE·May 29·2 min read

H02J3/24 NORTH CHINA ELECTRIC POWER UNIVERSITY

POWER FREQUENCY LINE PROTECTION PROCEDURE

A method for protecting a power system having inverter-interfaced renewable energy sources is provided. The power system includes an inverter and a control system. The control system includes a curren…

DRIVE·Dec 5·2 min read

H02J3/0012 NORTH CHINA ELECTRIC POWER UNIVERSITY

SHORT-CIRCUIT FAULT DETECTION METHOD FOR A POWER GRID

A method for analytically studying fault responses of an inverter-interfaced renewable energy source (IIRES). The IIRES includes a decoupled sequence control (DSC) system, and the DSC system includes …

DRIVE·Dec 5·1 min read

H02J3/001 NORTH CHINA ELECTRIC POWER UNIVERSITY

THERMAL POWER UNIT-FLYWHEEL ENERGY STORAGE COOPERATIVE FREQUENCY REGULATION CONTROL METHOD AND SYSTEM

A thermal power unit-flywheel energy storage cooperative frequency regulation control method and system is provided, which belongs to the technical field of a power grid. First, a real-time output inc…

DRIVE·Dec 21·2 min read

H02J3/30 NORTH CHINA ELECTRIC POWER UNIVERSITY

Method and System for a pilot directional protection of LCC-HVDC lines based on virtual grounding resistance

The application relates to a method and system for a pilot directional protection of LCC-HVDC lines based on virtual grounding resistance The method comprises: Obtaining a conduction state information…

DRIVE·Oct 26·1 min read

G01R31/085 NORTH CHINA ELECTRIC POWER UNIVERSITY

OSCILLATION ACTIVE DAMPING CONTROL METHOD AND SYSTEM FOR GRID-TIED TYPE-4 WIND TURBINE GENERATOR

The application relates to an oscillation active damping control method and system for grid-tied type-4 wind turbine generator. The method comprises: based on an interconnection model of multiple subs…

DRIVE·Dec 15·1 min read

H02J3/241 NORTH CHINA ELECTRIC POWER UNIVERSITY

POWER MARGIN TRACKING CONTROL METHOD AND SYSTEM FOR MULTI-TERMINAL HIGH-VOLTAGE DIRECT CURRENT CONVERTER STATION

A power margin tracking control method and system for a multi-terminal high-voltage direct current converter station are provided. A power adjustment factor is introduced on the basis of a droop coeff…

DRIVE·Jan 27·1 min read

H02J3/36 NORTH CHINA ELECTRIC POWER UNIVERSITY

COMMUTATION FAILURE PREDICTION METHOD, DEVICE AND STORAGE MEDIUM BASED ON ENERGY ACCUMULATION FEATURES OF INVERTER

The disclosure discloses a commutation failure prediction method, device and storage medium based on energy accumulation features of inverter. The method includes the following steps: collecting insta…

DRIVE·Jan 20·1 min read

H02J3/36 NORTH CHINA ELECTRIC POWER UNIVERSITY

Method and system for evaluating stability of HVDC receiving end system, and storage medium

The disclosure relates to a method and system for evaluating the stability of HVDC receiving end system and storage medium, which relates to the technical field of high voltage direct current transmis…

DRIVE·Jan 20·1 min read

H02J3/36 NORTH CHINA ELECTRIC POWER UNIVERSITY

METHOD, SYSTEM AND STORAGE MEDIUM FOR SUPPRESSING SUB/SUPER-SYNCHRONOUS OSCILLATION FOR DIRECT-DRIVE WIND TURBINE BASED ON ENERGY COMPENSATION

The disclosure relates to a method, system and storage medium for suppressing sub/super-synchronous oscillation for direct-drive wind turbine based on energy compensation. The method comprises: real-t…

DRIVE·Jan 20·2 min read

H02J3/24 NORTH CHINA ELECTRIC POWER UNIVERSITY

Method and System for AC Line Distance Protection in AC/DC Hybrid Power Grid, and Storage Medium

The disclosure relates to a method and system for AC line distance protection in AC/DC hybrid power grid, and storage medium. The method comprises: collecting the operation parameters of inverter-side…

DRIVE·Jan 20·2 min read

H02J3/0012 NORTH CHINA ELECTRIC POWER UNIVERSITY

POWER LOAD FORECASTING METHOD IN MULTI-ENERGY COUPLING MODE

The present invention relates to a load forecasting method based on a multi-energy coupling scene, which comprises the following steps: step 1, establishing a multilevel indicator system of key influe…

DRIVE·Jul 1·1 min read

H02J3/003 NORTH CHINA ELECTRIC POWER UNIVERSITY