#H02H7/268

IMPROVEMENTS IN OR RELATING TO BIPOLE POWER TRANSMISSION SCHEMES

In the field of high voltage direct current (HVDC) power transmission schemes, there is a need for improved detection of ground faults. [0002] A bipole power transmission scheme (12; 112) typically in…

DRIVE·Nov 26·5 min read

H02H7/268 GENERAL ELECTRIC TECHNOLOGY GMBH [CH]

PHOTOVOLTAIC POWER GENERATION SYSTEM, PHOTOVOLTAIC INVERTER, AND DIRECT CURRENT COMBINER BOX

A photovoltaic power generation system includes a protection switch and a plurality of DC-DC converters. Each DC-DC converter includes a direct current bus, a DC-DC circuit, and at least one input int…

DRIVE·Aug 22·1 min read

H02H7/268 Huawei Digital Power Technologies Co., Ltd.

METHOD FOR DETECTING ABNORMAL DIRECT CURRENT VOLTAGE MEASUREMENT IN HIGH VOLTAGE FLEXIBLE DIRECT CURRENT TRANSMISSION SYSTEM

A method for detecting abnormal direct current voltage measurement in a modular multilevel converter high voltage direct current transmission system is provided. In the method, a valve group voltage a…

DRIVE·Mar 21·1 min read

H02H7/268 ELECTRIC POWER RESEARCH INSTITUTE. CHINA SOUTHERN POWER GRID

FAULT DETECTION SYSTEMS AND METHODS FOR POWER GRID SYSTEMS

This application discloses a system that may comprise at least a portion of a supply network. The system may further comprise a load controller that controls current flow with a current level of I1 in…

DRIVE·Dec 28·1 min read

H02H7/268 Block Energy LLC

IMPROVEMENTS IN OR RELATING TO BIPOLE POWER TRANSMISSION SCHEMES

A bipole power transmission scheme typically includes a first converter station that is positioned remote from a second converter station, along with first and second transmission conduits which inter…

DRIVE·Oct 12·2 min read

H02H7/268 General Electric Technology GmbH

AN ELECTRIC POWER SYSTEM

An electric power system comprises direct voltage buses (101, 102) and at least two bus-tie links (103-105) each being connected between the direct voltage buses. Each bus-tie link comprises at least …

DRIVE·Sep 27·1 min read

H02H7/268 DANFOSS EDITRON OY [FI]

MULTI-TERMINAL DC POWER TRANSMISSION SYSTEM, COMMON CONTROL DEVICE THEREOF, AND FAULT RECOVERY METHOD FOR MULTI-TERMINAL DC POWER TRANSMISSION SYSTEM

In a multi-terminal DC power transmission system, a common control device is connected to a plurality of individual protective devices via a first communication network. Each of the individual protect…

DRIVE·Feb 9·2 min read

H02H7/268 Mitsubishi Electric Corporation

FAULT CURRENT LIMITING METHOD IN COMBINATION WITH BRIDGE-ARM CURRENT SUPPRESSION FOR VSC-HVDC

The present invention provides a fault current limiting method in combination with a bridge-arm current suppression for VSC-HVDC, including: extracting an equivalent resistance, an equivalent inductan…

DRIVE·Dec 7·2 min read

H02H7/268 UNIV SICHUAN [CN]

PHOTOVOLTAIC POWER GENERATION SYSTEM, PHOTOVOLTAIC INVERTER, AND DIRECT CURRENT COMBINER BOX

DRIVE·Nov 17·1 min read

H02H7/268 Huawei Digital Power Technologies Co., Ltd.

Source-network Coordination Type Direct-current (DC) Circuit Breaker Based on pre-charged Capacitors for Modular Multilevel Converters (MMC) Based DC Grid

A source-network coordination type direct-current (DC) circuit breaker based on pre-charged capacitors for an MMC based DC grid is provided. The MMC based DC grid is provided with four converter stati…

DRIVE·Sep 29·1 min read

H02H7/268 Tianjin University

PULSE CIRCUIT FOR PROVIDING A FAULT CURRENT IN A DC VOLTAGE POWER SUPPLY GRID

Electrical devices are connected to a DC voltage power supply grid being connected to a power source and having a supply voltage. Protection devices protect the electrical devices against an unintenti…

DRIVE·Mar 31·1 min read

H02H7/268 Siemens Aktiengesellschaft

METHOD FOR FAULT PROTECTION IN HVDC GRID, HVDC NODE OF HVDC GRID, AND HVDC GRID SYSTEM

The present invention concerns a node of an HVDC grid composed of HVDC nodes and of a plurality of links interconnecting the HVDC nodes, each HVDC node being interconnected to at least one HVDC node o…

DRIVE·Feb 17·1 min read

H02H7/268 MITSUBISHI ELECTRIC CORPORATION

ELECTRONIC VALVE APPARATUS

The present disclosure relates to an electronic valve apparatus for a high voltage direct current, HVDC, power transmission system. The electronic valve apparatus comprises a first device chain () inc…

DRIVE·Oct 21·2 min read

H02H7/268 General Electric Technology GmbH

HVDC TRANSMISSION SCHEMES

The present invention provides a high voltage direct current (HVDC) transmission system () comprising: a first station () comprising series-connected first and second HVDC converters (); a second stat…

DRIVE·Apr 22·2 min read

H02H7/268 GENERAL ELECTRIC TECHNOLOGY GMBH

A DC-power system with system protection capabilities

It is presented a DC-power system (1) comprising a main DC bus (3), a power generating unit (P1, P2, P3, P4) arranged to feed the main DC bus (3), an isolator switch arranged (7) between the main DC b…

DRIVE·Sep 4·2 min read

H02H7/268 ABB TECHNOLOGY LTD [CH]