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Emergency power supply system and emergency power supply method of island

An emergency power supply system and emergency power supply technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of affecting the ecological environment, high cost of standby diesel generators, uneconomical and unstable submarine cable power supply, etc. The effect of low cost, promoting local economic and social development, and improving disaster resilience

Inactive Publication Date: 2018-09-21
朱倩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an island emergency power supply system and an emergency power supply method, which are used to solve the uneconomical and unstable power supply of the island emergency power supply in the prior art, or the use of wind power. The main micro-grid affects the ecological environment and the high cost of using backup diesel generators

Method used

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  • Emergency power supply system and emergency power supply method of island
  • Emergency power supply system and emergency power supply method of island

Examples

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Embodiment 1

[0039] The present invention provides an island emergency power supply system, which is used for emergency power supply of an island power grid 1. The island emergency power supply system includes: an island power grid emergency connection port, and the island power grid emergency connection port is used for the emergency power supply of the island power grid 1. The input of the island power grid monitoring and dispatching center 2, the island power grid monitoring and dispatching center 2 is connected with the island power grid 1, and is used to monitor the power supply situation of the island power grid 1;

[0040] A ship dispatching control center 3, the ship dispatching control center 3 is connected to the island power grid monitoring and dispatching center 2, and sends dispatching information when receiving the island power grid fault information and dispatching instructions issued by the island power grid monitoring and dispatching center 2;

[0041] The ship 4 capable of...

Embodiment 2

[0053] The present invention also provides an island emergency power supply method, which is used when the island power grid fails. The method includes the following steps: the island power grid monitoring and dispatching center sends a request for power supply to the ship dispatching control center; The nearby ships capable of generating electricity send dispatch information; the ships capable of generating electricity that respond to the signal sail to the emergency connection port of the island power grid according to the dispatch arrangement, and supply power to the island power grid.

[0054] In this embodiment, a step of current conversion is also included before supplying power to the island grid:

[0055] 1) Convert the direct current or alternating current output by the ship capable of generating electricity into the direct current required by the direct current bus. Among them, when the ship is powered by batteries, the output current is DC, which needs to be convert...

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Abstract

The invention provides an emergency power supply system and an emergency power supply method of an island. The emergency power supply system of the island comprises an island power grid emergency connection port, an island power grid monitoring and dispatching center, a ship dispatching and control center and power generation operation ships. When monitoring a fault of an island power grid, the island power grid monitoring and dispatching center starts up an energy storage system to provide power supply transition support for the power grid temporarily and sends a request instruction to the ship dispatching and control center at the same time; the ship dispatching and control center sends convening signals to the power generation operation ships operating nearby through a wireless network;and the power generation operation ships responding to the signals are sailed to the corresponding island power grid emergency connection port according to dispatching arrangement to provide the power supply support. The system and the method improve the disaster resistance ability of an island electric system when faced with an unexpected disaster; the system is simple in structure and low in operating cost, makes reasonable use of rich offshore operation ship resources, and achieves optimal configuration and utilization of the resources, and the economic income of fishermen is increased atthe same time.

Description

technical field [0001] The invention relates to the technical field of island power systems, in particular to an island emergency power supply system and an emergency power supply method. Background technique [0002] Due to the special geographical location of the island, there are many differences in the planning, design, operation and maintenance of the power grid with the mainland power grid. The island is the main area for the construction and application of micro-grids in my country in the future. [0003] The island power grid has problems such as high cost, difficult construction, easy damage, and difficult maintenance in strengthening the connection with the main grid, which limits the ability of the island power grid to improve the reliability and quality of power supply. In particular, ocean-going islands are highly valued because of their special strategic significance and rich natural resources, but their power supply systems have long relied on diesel engines t...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J13/00
CPCH02J13/0075H02J3/0073
Inventor 朱倩
Owner 朱倩
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