Power generation and transmission system, control device, control method, method for installing power transmission cables, and computer program
JP7877589B2Active Publication Date: 2026-06-22KK TOSHIBA +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- KK TOSHIBA
- Filing Date
- 2023-06-12
- Publication Date
- 2026-06-22
AI Technical Summary
Technical Problem
Existing power transmission systems face disruptions when a failure occurs in one of the three-phase cables, leading to the loss of power transmission and generation opportunities.
Method used
A power transmission and distribution system that includes a power conditioner capable of outputting single-phase or three-phase AC power, converters, transmission cables, and a control device that switches to single-phase operation mode upon detecting a ground fault, allowing continuous power transmission using two of the three-phase cables.
Benefits of technology
Enables continuous power transmission by switching to single-phase operation, reducing power transmission losses and maintaining operation until cable replacement, thus minimizing power generation losses.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
A power generation and transmission system according to an embodiment of the present invention comprises: a power conditioner capable of outputting single-phase or three-phase AC power having a prescribed frequency and voltage; a conversion device that supplies the AC power output of the power conditioner to a power grid; power transmission cables for at least three phases and for transmitting the output power of the power conditioner to the conversion device; a detection unit that detects a ground-fault accident that occurred in the power transmission cables; and a control device that, if a ground fault accident was detected, generates an instruction signal for a single-phase operation mode in which single-phase power transmission is carried out using, among the power transmission cables, cables other than the cables in which the ground-fault accident has occurred. The power conditioner is characterized by outputting, in accordance with the instruction signal, single-phase AC power via the cables other than the cables in which the ground-fault accident has occurred.
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Citation Information
Patent Citations
CN114142463A
CN114156878A
JP1986092128A
JP2008283764A
JP2016101030A