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Electric system for medium-voltage plant

A plant power system and power system technology, applied to AC networks with the same frequency from different sources, etc., can solve the problems of inconvenient operation and management of the desulfurization system alone, unreasonable setting of the medium-voltage plant power system, etc., and achieve shutdown Convenience, easy centralized management, and enhanced unit effect

Pending Publication Date: 2019-07-30
国电建投内蒙古能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the existing technology, due to the unreasonable setting of the power system of the medium-voltage plant, it is not convenient for the separate operation and management of the desulfurization system

Method used

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  • Electric system for medium-voltage plant
  • Electric system for medium-voltage plant
  • Electric system for medium-voltage plant

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0029] figure 1 It shows a medium voltage substation power system provided by the embodiment of the present invention; as figure 1 As shown, Embodiment 1 provides a medium-voltage substation power system, including:

[0030] There are two units, respectively the first unit 1 and the second unit 2, and two sections of medium-voltage working busbars are provided for each unit. Two sections of medium-voltage working busbars 20A and 20B are set up for the first unit 1 and the second unit 2. Two sections of medium-voltage common busbars 01A and 01B are provided. Among them, 01A is drawn from the first unit 1 medium-voltage working busbar 10B, and 01B is drawn from the second Unit 2 medium voltage working bus 20B, common bus 01A and common bus 01B are provided with tie switches.

[0031] Connect the two sections of medium-voltage public buses to the two sections of medium-voltage working buses of each unit, and connect all the single-row configuration fans 3 of the medium-voltage ...

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Abstract

The invention discloses an electric system for a medium-voltage plant. The electric system comprises two units, namely a first unit and a second unit, wherein two sections of medium-voltage working buses are arranged for each unit; the first unit and the second unit are provided with two sections of medium-voltage common buses, wherein the medium-voltage common buses are connected to plant workingbuses of different units, and contact switches are arranged for the first unit and the second unit; the two sections of medium-voltage common buses are connected to the two sections of medium-voltageworking buses of the units respectively; single-row configuration fans of the electric system of the medium-voltage plant are all connected into one of the two sections of medium-voltage working buses, wherein the single-row configuration fans are important loads in the electric system of the medium-voltage plant, and unit loads in the electric system of the medium-voltage plant are distributed to the medium-voltage working buses of the respective units; and each unit is provided with a section of medium-voltage desulfurization bus which is connected to the corresponding plant working bus section of the unit. In the electric system of the medium-voltage plant, the two sections of medium-voltage desulfurization busses are arranged in the whole plant and are connected to the plant working bus sections, so that the independent operation management of a desulfurization system is facilitated.

Description

[0001] Technical field: [0002] The invention relates to the field of electric power, in particular to the field of medium-voltage utility power systems. [0003] Background technique: [0004] In the prior art, the power load configuration of the medium-voltage power plant in the power plant is as follows: the electric feed water pump is a starter pump, and there is one set for the two units; the condensate pump and the closed cooling water pump are two sets, one for operation and one for standby; The coal mines are transported five times and one is prepared; the primary fans, blowers and induced draft fans are all configured in a single column; other loads such as auxiliary circulating water pumps, air compressors, rainwater pumps, belt conveyors, etc. are public loads. [0005] After the primary fan, blower fan, and induced draft fan are configured in a single row, from the perspective of process flow, when the unit is running, the three major fans in a single row need to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/04
CPCH02J3/04
Inventor 顾玉春刘文亮俞基安蔡利军王新宁麦永强于杰白续涛李大强李文辉公维华李海鹏吕龙城
Owner 国电建投内蒙古能源有限公司
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