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Power pack system and power pack system optimization method

A technology of a power pack system and an intelligent system, applied in the field of power pack system and power pack system optimization, can solve the problems of long adjustment time, the operation efficiency of the cooling system cannot be in an optimal state, and the matching cannot be optimized.

Active Publication Date: 2016-04-06
SHANGHAI ELECTRIC FUJI ELECTRIC POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The motors and frequency conversion systems in the current thermal power plant system mainly adopt general vector control or VVVF control strategies, and these control strategies mostly work on the premise of a constant magnetic field control module, and for the closed loop of the entire system including the load The control is mostly operated in the PID mode, that is, after the entire control system is set and debugged, no matter whether the load changes, the control strategy of the system will not change, and then when the components in the system such as the load change , will make its power consumption larger, resulting in a waste of energy
[0004] In addition, since each device in the system is supplied discretely, the matching of the parameters of each device in the system will not be optimal, and if the load changes with the working conditions of the power plant, since the traditional control system does not have the ability to control the load including the The integration and optimization conditions of the overall key information of the system, so it is difficult to track the maximum efficiency point of the system, and in the case of large changes in load, it has many defects such as long adjustment time and unstable equipment operation, which will cause The operating efficiency of the cooling system using the traditional control strategy cannot be in the optimal state, which further leads to energy waste
[0005] At the same time, in the whole system, the output of the inverter determines the operating state of the motor, and the operating efficiency of the motor is related to the load, and the operating state of the motor determines the efficiency of the load. , motor, and load unified modeling optimization (that is, control commands can only be output according to the established program), which cannot ensure that the entire system has better working efficiency, which will further aggravate the waste of system energy

Method used

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  • Power pack system and power pack system optimization method
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  • Power pack system and power pack system optimization method

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Embodiment 1

[0048] figure 1 It is a schematic structural diagram of the power pack system provided by Embodiment 1 of the present invention, figure 2 yes figure 1 Schematic diagram of the structure and connection relationship of the power pack control equipment; Figure 1~2 As shown, this embodiment provides a power pack system, which can be applied to the factory pipe network cooling system of a power plant, and can specifically include:

[0049]The load equipment can be used as the execution equipment of the power pack system to cool down the heat source in the power plant; for example, the load equipment can be large fans and / or condensate pumps and / or compressors and other equipment in the power plant .

[0050] The driving equipment can be connected with the above-mentioned load equipment through the transmission equipment (such as bearing transmission system, etc.) to drive the load equipment to work; Electric energy is used to drive the above-mentioned fan and / or condensate pu...

Embodiment 2

[0066] image 3 It is a flow chart of the power pack system optimization method provided in Embodiment 2 of the present invention. The power pack system optimization method in Embodiment 2 can be based on the power pack system in Embodiment 1 above (that is, the power pack system in Embodiment 1 and Embodiment 2 The same or corresponding technical features can be applied to each other), which can be applied to the cooling of heat sources in power plants, such as Figure 1~3 As shown, the above-mentioned power pack system optimization method may include:

[0067] First, after optimizing and matching each device in the power pack system, input the attribute parameters of each device into the power pack system parameter model unit.

[0068] Secondly, the real-time operating parameters of each device in the power pack system can be obtained by using an intelligent system state observer that stores a mathematical observation model based on accurate parameters of the power pack sys...

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Abstract

The invention discloses a power pack system and a power pack system optimization method and relates to the technical field of frequency conversion applications of power station equipment. Through tracking and control of an optical efficiency of the system, energy waste phenomena such as driving of a trolley by a large horsepower during system control can be effectively avoided, namely optical operation matching between every two devices in the system can be realized at minimum power consumption, energy can be saved by 3%-8% on the basis of traditional frequency conversion control, and thus economic benefits of a power plant can be increased greatly along with energy consumption reduction; and meanwhile, the power pack system based on a full-integration optimization control strategy in the technical scheme of the application also makes for integration and intelligence upgrading of the power station equipment so as to facilitate upgrading and transformation of a whole industrial chain.

Description

technical field [0001] The invention relates to the technical field of frequency conversion application of power station equipment, in particular to a power pack system and a power pack system optimization method. Background technique [0002] At present, power station systems (such as thermal power generation systems) undergoing frequency conversion transformation generally include components such as frequency converters, motors, loads (such as fans or condensate pumps, compressors, etc.) and upper systems. In practical applications, the upper system generally sends control commands to the frequency converter to control and drive the operation of the motor, and then drive the load to work, so as to achieve the predetermined control goal. [0003] The motors and frequency conversion systems in the current thermal power plant system mainly adopt general vector control or VVVF control strategies, and these control strategies mostly work on the premise of a constant magnetic fi...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02G05B19/41875
Inventor 邓云天齐亮陈江洪王旭董英
Owner SHANGHAI ELECTRIC FUJI ELECTRIC POWER TECH CO LTD
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