A Power Source System for Unified Dispatching of Auxiliary Machines in Power Plants

A technology of power plants and generators, which is applied in the energy industry, electrical components, circuit devices, etc., can solve the problems of unit operation safety threats, cumbersome inverter maintenance, high operation failure rate, etc., achieve superior energy saving effects, reduce length and high voltage The number of switching intervals and the effect of a simple system structure

Active Publication Date: 2018-09-18
XIAN XIRE ENERGY SAVING TECH +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] According to the operation status of the frequency converter in the power plant, the complexity of its electronic components leads to a decrease in reliability, which poses a serious threat to the safety of the unit operation, and is currently a very troublesome problem for maintenance personnel in power plants
In addition, each auxiliary machine is equipped with a separate frequency converter, and the maintenance of a large number of frequency converters is extremely cumbersome, and the maintenance workload is heavy
[0004] There are other auxiliary speed control equipment, such as hydraulic coupler, permanent magnet governor, permanent magnet coupler, etc., which have the problems of high cost, high operation failure rate, and poor adjustment effect, and are subject to certain restrictions in thermal power plants. limit

Method used

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  • A Power Source System for Unified Dispatching of Auxiliary Machines in Power Plants
  • A Power Source System for Unified Dispatching of Auxiliary Machines in Power Plants
  • A Power Source System for Unified Dispatching of Auxiliary Machines in Power Plants

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Embodiment Construction

[0036] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0037] Such as figure 1 As shown, a power source system for integrated adjustment of auxiliary machinery for a power plant of the present invention includes a high-voltage auxiliary transformer 1, A-segment auxiliary machinery 2, B-segment auxiliary auxiliary machinery 3, and an integrated adjustment power source generator 4; , The high-voltage side inlet end of the high-voltage auxiliary transformer 1 is connected to the main wiring of the external thermal power plant, and the two low-voltage side outlet ends are respectively connected to the A-section auxiliary machine 2 and the B-section auxiliary machine 3 through a cable line; The inlet end of the auxiliary plant 2 of section A and the inlet end of the auxiliary plant 3 of section B are connected by a cable line to the outlet end of the integrated power source generator 4; Mac...

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Abstract

The invention discloses an auxiliary engine tracking power source system for a power plant. The auxiliary engine tracking power source system comprises a high-voltage station transformer, station auxiliary engines and a tracking power source generator, wherein a turbine-drive tracking power source generator is adopted to supply power to the station auxiliary engines; the rotary speeds of the auxiliary engines, such as a draught fan and a water pump are adjusted to the optimal working condition according to requirements of different loads for air volume and water volume, so that energy loss caused by air door baffle cut-off can be avoided. The auxiliary engine tracking power source system adopts a novel energy-saving and consumption-reducing technology for the power plant, so that the station service power consumption rate of the power plant can be substantially lowered.

Description

Technical field: [0001] The invention relates to an energy-saving and consumption-reducing system for an auxiliary system of a power plant, in particular to a power source system for integrated adjustment of auxiliary machinery used in a power plant. Background technique: [0002] In thermal power plants, 80% of the factory load is consumed by various fans, pumps and other rotating auxiliary machines. When the load of the auxiliary machine is lower than the rated value, its efficiency drops significantly. This is because in order to reduce the demand for the flow of various working fluids when the main engine is under low load, measures such as air damper and throttle valve are adopted, which consumes a large amount of energy and causes a serious waste of electric energy. For this reason, the frequency converter is generally used to reduce the operating frequency of the auxiliary machine, so that the auxiliary machine works in the high-efficiency work area as much as possible, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46
CPCH02J3/388H02J3/46Y02P80/10
Inventor 兀鹏越赵峰柴琦赵煦居文平许朋江谷巍寇水潮
Owner XIAN XIRE ENERGY SAVING TECH
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