Auxiliary engine tracking power source system for power plant

A technology for power plants and generators, applied in electrical components, energy industry, circuit devices, etc., can solve the problems of unit operation safety threats, complicated inverter maintenance, and high operating failure rates, achieving superior energy-saving effects, reducing length and high voltage. The number of switching intervals, the effect of a simple system structure

Active Publication Date: 2016-12-07
XIAN XIRE ENERGY SAVING TECH +1
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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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  • Auxiliary engine tracking power source system for power plant
  • Auxiliary engine tracking power source system for power plant
  • Auxiliary engine tracking power source system for power plant

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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] like figure 1 As shown in the figure, the present invention is an auxiliary power source system for power plant adjustment, including a high-voltage plant transformer 1, a section A plant auxiliary machine 2, a B section plant auxiliary machine 3, and a unified power source generator 4; wherein , the high-voltage side inlet end of the high-voltage factory transformer 1 is connected with the main wiring of the external thermal power plant, and the two low-voltage side outlet ends are respectively connected with the A-stage auxiliary equipment 2 and the B-section auxiliary equipment 3 through cable lines; The incoming line end of the plant auxiliary machine 2 in section A is connected with the incoming line end of the plant auxiliary machine 3 in section B through a cable line and is connected with the outlet end of the uni...

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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 a power plant system, in particular to a power source system for unified adjustment of auxiliary machines for a power plant. Background technique: [0002] In thermal power plants, 80% of the plant load is consumed by various rotating auxiliary machines such as fans and pumps. 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 dampers and throttle valves are adopted, which consume a lot of energy and cause 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 can work in the high-efficiency working area as much as possible, and at the same time, the ...

Claims

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Application Information

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Patent Type & Authority Applications(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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