CN202854508U

CN202854508U - FPGA (field programmable gate array) based transformer cooling fuzzy control system

Info

Publication number: CN202854508U
Application number: CN 201220554753
Authority: CN
Inventors: 孙永辉
Original assignee: YANGZHOU XIRUI ELECTRIC CO Ltd
Current assignee: YANGZHOU XIRUI ELECTRIC CO Ltd
Priority date: 2012-10-26
Filing date: 2012-10-26
Publication date: 2013-04-03
Anticipated expiration: 2022-10-26

Abstract

The utility model discloses an FPGA (field programmable gate array) based transformer cooling fuzzy control system, which adopts an FPGA as a controller, carries out comparison on various parameter data through collecting parameters such as the oil temperature, the environmental temperature and the load current and the like, based on logical reasoning and judgment of a fuzzy control method, and by using the characteristic that fuzzy control rules themselves are insensitive to changes of parameters, automatically controls running of a transformer cooling device, and realizes real-time monitoring on the transformer cooling device. The FPGA based transformer cooling fuzzy control system realizes control purely by hardware, adapts to requirements for the reliability at high temperature, is complete in function and high in automation degree, and has the characteristics of flexible design, field programmability, simple debugging, small size and the like.

Description

Transformer Cooling Fuzzy control system based on FPGA

Technical field

The utility model belongs to the transformer control field, is specifically related to a kind of transformer Cooling Fuzzy control system based on FPGA.

Background technology

Safe, the reliable and effective supply of electric power is the important substance technical foundation that modern society runs well, concerning economic development and social stability.Transformer is as one of most important equipment of electric system, and its cooling control system is the pith that guarantees the normal operation of transformer safety.

What at present use of China was more is oil-filled transformer, and the type of cooling of this type of transformer has: oil, oil, forced oil-circulation cooling etc.Traditional control mode adopts Control mostly, this kind control technology is mainly realized by the mechanical contact logical circuit, element is many, wiring is complicated, potential safety hazard is many, and automaticity is low, and the trouble spot is many, and can only be operated in the power frequency section, not cause unnecessary energy dissipation in the situation that the transformer temperature rise is high.And, though relay logic control can realize the part automatic control function, but function is imperfection very, the integrated automation of transformation stations and transformer station's unmanned requirement can not have been adapted to, particularly existing transformer cooling control system does not have network communicating function, makes duty and failure condition that the power transformation operation centralized control center can not the Real Time Monitoring transformer cooling control system.

Although some improvement technology have been adopted in the control of transformer cooling system at present, such as programmable logic controller (PLC) (PLC), single-chip microcomputer etc., although because the PLC antijamming capability is strong, need the modules such as in addition expansion PWM generation; The single-chip microcomputer poor anti jamming capability.

Therefore, need a kind of new transformer cooling control system to address the above problem.

Summary of the invention

Goal of the invention: the utility model provides a kind of flexible transformer Cooling Fuzzy control system based on FPGA for the defective of existing field transformer monitoring technique.

Technical scheme: for solving the problems of the technologies described above, the transformer Cooling Fuzzy control system based on FPGA of the present utility model adopts following technical scheme:

A kind of transformer Cooling Fuzzy control system based on FPGA, comprise FPGA controller, power circuit module, display circuit module, level shifting circuit module, communicator module, state signal collecting module, fault detection module and control signal output module, described power circuit module, display circuit module and level shifting circuit module are connected and are connected described FPGA controller, and described communicator module, state signal collecting module, fault detection module and control signal output module are connected and are connected described level shifting circuit module.

Inventive principle: adopt FPGA as controller, the parameters such as the oil temperature by gathering transformer, environment temperature, load current, reasoning from logic and judgement based on fuzzy control method, utilize fuzzy control rule itself to the insensitive characteristic of the change of parameter, carry out the contrast of various supplemental characteristics, automatically the operation of control transformer cooling device realizes the Real Time Monitoring to transformer Cooling equipment.This system realizes controlling with pure hardware, when adapting to high temperature to the requirement of reliability.

Beneficial effect: the transformer Cooling Fuzzy control system based on FPGA of the present utility model has following advantage: 1) perfect in shape and function: logic commonly used in the control is judged and arithmetical operation, can be described and checking by VHDL language, and by the simple and direct realization of FPGA; 2) automaticity is high: realize that at FPGA fuzzy controller is a kind of scheme between special IC and general processor, have the advantages such as high-speed, the high reliability, miniaturization of electronic product, integrated, low-power consumption, security performance is good; 3) flexible design: compared to routine control, the FPGA controller need not to set up the mathematical models of controlled device owing to adopting fuzzy control technology, just can realize control based on expertise, and the inference logic of simulating human thinking, be easy to accept, simplicity of design, easy to maintenance; 4) FPGA can unlimited loading procedure, but and field programming, adaptability is good, and debugging is simple; 5) volume is little.

Description of drawings

The structural representation of Fig. 1 transformer Cooling Fuzzy control system based on FPGA of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the utility model claims limited range to the modification of the various equivalent form of values of the present utility model.

See also shown in Figure 1, transformer Cooling Fuzzy control system based on FPGA of the present utility model comprises FPGA controller, power circuit module, display circuit module, level shifting circuit module, communicator module, state signal collecting module, fault detection module and control signal output module.Wherein, power circuit module, display circuit module and level shifting circuit module are connected and are connected the FPGA controller, and communicator module, state signal collecting module, fault detection module and control signal output module are connected and are connected the level shifting circuit module.

The FPGA controller is two-way the connection with the level shifting circuit module, is unidirectional the connection with power circuit module, display circuit module, and the contrast and the logic that are used for signal data are judged, and exported corresponding control signal.

The level shifting circuit module is two-way the connection with the communicator module, is connected unidirectional the connection with state signal collecting module, fault detection module and control signal output module, is used for the conversion of level between the modules.

Display circuit module is used for showing the data of FPGA controller output.

The power circuit module is used for providing electric energy to the FPGA controller.

The communicator module is used for communicating by letter of native system and centralized control center, a distant place, can realize remote signalling, telemetry and telecommand, and itself and centralized control center realize the data double-way transmission.

The state signal collecting module is used for automatically gathering the fan electromotor of Main Transformer Cooler, the operation information of Oil pump electrical machinery.

Fault detection module is used for automatically gathering the fan electromotor of Main Transformer Cooler, the failure message of Oil pump electrical machinery.

The control signal output module is used for automatic cycle input that requirement that output FPGA controller sends realizes Main Transformer Cooler, switching or the signal such as out of service.

Transformer Cooling Fuzzy control system based on FPGA of the present utility model has the following advantages:

1) perfect in shape and function: logic commonly used in the control is judged and arithmetical operation, can be described and checking by VHDL language, and by the simple and direct realization of FPGA.

2) automaticity is high: realize that at FPGA fuzzy controller is a kind of scheme between special IC and general processor, have the advantages such as high-speed, the high reliability, miniaturization of electronic product, integrated, low-power consumption, security performance is good.

3) flexible design: compared to routine control, the FPGA controller need not to set up the mathematical models of controlled device owing to adopting fuzzy control technology, just can realize control based on expertise, and the inference logic of simulating human thinking, be easy to accept, simplicity of design, easy to maintenance.

4) FPGA can unlimited loading procedure, but and field programming, adaptability is good, and debugging is simple.

5) volume is little.

Claims

1. transformer Cooling Fuzzy control system based on FPGA, comprise FPGA controller, power circuit module, display circuit module, level shifting circuit module, communicator module, state signal collecting module, fault detection module and control signal output module, described power circuit module, display circuit module and level shifting circuit module are connected and are connected described FPGA controller, and described communicator module, state signal collecting module, fault detection module and control signal output module are connected and are connected described level shifting circuit module.

2. the transformer Cooling Fuzzy control system based on FPGA as claimed in claim 1 is characterized in that, described FPGA controller is two-way the connection with described level shifting circuit module, is unidirectional the connection with described power circuit module, display circuit module.

3. the transformer Cooling Fuzzy control system based on FPGA as claimed in claim 1, it is characterized in that, described level shifting circuit module is two-way the connection with described communicator module, is connected unidirectional the connection with described state signal collecting module, fault detection module and control signal output module.