CN109412050A - The adjusting method of switchgear house environment adjustment system based on sensors optimum placement - Google Patents
The adjusting method of switchgear house environment adjustment system based on sensors optimum placement Download PDFInfo
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- CN109412050A CN109412050A CN201811350415.6A CN201811350415A CN109412050A CN 109412050 A CN109412050 A CN 109412050A CN 201811350415 A CN201811350415 A CN 201811350415A CN 109412050 A CN109412050 A CN 109412050A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The adjusting method of the invention discloses a kind of switchgear house environment adjustment system based on sensors optimum placement, it includes the adjusting method of sensors optimum placement and regulating system, the sensors optimum placement method are as follows: establish substation control buildings three-dimensional geometry simulation model using Ansys, switchgear house temperature field and moisture field simulation analysis are carried out to simulation model using Ansys, the temperature field under different height and moisture field distributed simulation figure are obtained, Temperature Humidity Sensor is chosen by analogous diagram and is layouted；The monitoring point distribution solved to indoor temperature and humidity is less and unreasonable, leads to the generation of accident；2. on control strategy, existing once environmental monitoring goes out not up to desired place, just will start all devices, entire environment is adjusted together.One is inaccurate, and two start unnecessary equipment, increases the working time of equipment, and energy consumption increases, and can not achieve the purpose of energy-saving and emission-reduction.
Description
Technical field
The invention belongs to automation field more particularly to a kind of distribution room environmental adjustings based on sensors optimum placement
The adjusting method of system.
Background technique
There are many important power equipment and its systems for assembly in high-tension distribution chamber of converting room, there is harsh requirement for environment.
Temperature is excessively high to may cause that equipment heating amount is excessive can not but to radiate, and in turn results in damage, system may also can go out because of high temperature
The case where existing fluctuation of service.Phenomena such as moisture condensation, corrosion, can occur for excessively high humidity and a large amount of dust in air, lead to equipment
The accidents such as aging, failure occur.For the aerial temperature and humidity for reducing switchgear house power equipment running environment, meet high-tension apparatus safety
The ambient temperature and humidity index of operation, prevent dust accumulation, dew condensation phenomenon, solve high-tension distribution chamber of converting indoor equipment get rusty, problem of aging, prolong
Long life period of equipment guarantees production safety, while reducing energy consumption, accomplishes energy-saving and emission-reduction, so needing to design reasonable environment
Control system；Room temperature and humidity are monitored when implementing in the indoor Environment Controlling Strategy of switchgear house at present,
It when temperature and humidity is undesirable, opens whole equipment (dehumidifier or blower) and is controlled, adjust indoor temperature and humidity,
So that temperature and humidity drops in required range；Environment Controlling Strategy and method are primarily present following defect at present:
1. the monitoring point distribution of pair indoor temperature and humidity is less and unreasonable, it is although being received to the environment near monitoring point
The control of system, it can be difficult to whether the temperature and humidity of complementary space also reaches requirement when guaranteeing that the monitoring point reaches requirement.?
The place that does not monitor leads to the generation of accident it is possible to there is environment situation not up to standard；
2. on control strategy, exists once environmental monitoring goes out not up to desired place, just will start all devices, it is right together
Entire environment is adjusted.One is inaccurate, makes the environment temperature in low temperature to make some part reach standard
Become lower, can not achieve and specific aim control is carried out to the indoor space of distribution；Two start unnecessary equipment, increase
The working time of equipment, energy consumption increase, and can not achieve the purpose of energy-saving and emission-reduction.
Summary of the invention
The technical problem to be solved by the present invention is providing the switchgear house environment adjustment system based on sensors optimum placement
Adjusting method, to solve the above-mentioned prior art: the monitoring point distribution of 1. pairs of indoor temperature and humidities is less and unreasonable, although to prison
Environment near measuring point receives the control of system, it can be difficult to when guaranteeing that the monitoring point reaches requirement, complementary space
Whether temperature and humidity also reaches requirement.In the place not monitored it is possible to there is environment situation not up to standard, lead to the hair of accident
It is raw；2. on control strategy, existing once environmental monitoring goes out not up to desired place, just will start all devices, together to entire
Environment is adjusted.One is inaccurate, to become in the environment temperature of low temperature to make some part reach standard
It is lower, it can not achieve and specific aim control is carried out to the indoor space of distribution；Two start unnecessary equipment, increase equipment
Working time, energy consumption increase, can not achieve the purpose of energy-saving and emission-reduction.
The technical scheme is that
A kind of adjusting method of the switchgear house environment adjustment system based on sensors optimum placement, it includes sensor optimization
The adjusting method of arrangement and regulating system, the sensors optimum placement method are as follows: establish substation control buildings three using Ansys
Geometric simulation model is tieed up, switchgear house temperature field and moisture field simulation analysis are carried out to simulation model using Ansys, obtain different height
Temperature field and moisture field distributed simulation figure under degree choose Temperature Humidity Sensor by analogous diagram and layout.
Include: using the method that Ansys establishes substation control buildings three-dimensional geometry simulation model
Step A, the modeling of acquisition substation control buildings needs parameter, and the model parameter including substation control buildings, ventilation is used
Lower margin window number ndAnd parameter, ventilation fan number nfAnd parameter, number, place switchgear house position and the parameter of switchgear house switchgear；
Switchgear house model parameter includes length L, width W, height H；Ventilation lower margin window parameter includes wall where ventilation lower margin window
Plan-position, ventilation lower margin window resistance coefficient；Ventilation fan parameter includes wall plane position, ventilation fan stream where ventilation fan
Amount；Substation control buildings external environment temperature parameter Tout, outside relative humidity parameter Dout；Substation control buildings interior wall wall temperature
Parameter Twall, indoor environment temperature parameter Tin, indoor relative humidity parameter Din；Running environment requirement in substation control buildings
Environment temperature maximum of T max, relative humidity maximum value Dmax；Switchgear house switch cabinet parameter includes single switch cabinet heating power
Pk, switchgear porosity ξ；
Step B, the substation control buildings modeling acquired using step 1 needs parameter, establishes substation control buildings in Ansys
Three-dimensional geometry simulation model；
Step C, simplified model；Ignoring ancillary equipment fluid flow in high voltage power distribution room influences, by switchgear house switchgear
Heat source is set as plane heat source, and it is identical to set uniformity heat transfer property for high-tension distribution chamber of converting building enclosure；To obtain simplification
Substation control buildings three-dimensional geometry simulation model.
Switchgear house temperature field and moisture field simulation analysis are carried out to simulation model using Ansys, obtained under different height
The method in temperature field and moisture field distributed simulation figure are as follows:
Step D, to the full extent in performance switchgear house under the premise of fluid flow characteristics, the meter in switchgear house flow field is determined
Calculate domain, using SST hexahedral meshes to simulation model computational domain carry out it is discrete, then to switchgear house include switchgear, blower,
The local location of ventilation opening carries out auto grid plot, by carrying out local cypher processing to computational domain, after obtaining mesh refinement
Number of meshes and number of nodes；
Step E, the switchgear house of step 1, ventilation lower margin window, ventilation fan, switchgear house switchgear, switchgear house indoor and outdoor are utilized
The boundary condition and primary condition of environmental parameter setting simulation model；
Step F, solution strategies are set, and setting computation model is RNG k- ε turbulence model, and method for solving is simple calculation
Method, solving precision are Second-order Up-wind lattice, and the number of iterations N and termination condition is arranged；Emulating termination condition is energy residual error less than 10‐7, or inlet and outlet flow error is less than 10‐4；
Step G, start to emulate, until reaching emulation termination condition, obtain the temperature field under different height and moisture field point
Cloth analogous diagram.
The method that Temperature Humidity Sensor is layouted is chosen by analogous diagram are as follows: chooses temperature field and the humidity of different height
Field distribution analogous diagram, exists respectivelyHighest 4 points of temperature are chosen at H and minimum 4 points of temperature are made
The acquisition that the representative temperature data in different height temperature sensitizing range is realized for temperature sensor installation point, exists respectively Highest 4 points of relative humidity and minimum 4 points of relative humidity are chosen at H as humidity sensor
Device installation point realizes the acquisition of the representative relative humidity data in different height relative humidity sensitizing range.
The adjusting method of the regulating system includes:
Step 1, when smoke monitoring element monitoring have dense smoke when, substation control buildings temperature and humidity automatic control system hair
Alarm signal out, while toxic and harmful gas in switch gear room is discharged with maximum wind velocity operation for automatic starting exhaust blower；Work as smog
Monitoring element do not monitor to stop air draft when dense smoke, is transferred to normal temperature and humidity detection；
Step 2 works as TIt is indoor>=40 DEG C,TIt is outdoorAt >=40 DEG C, it is failure to actuate；Work as TIt is indoor>=40 DEG C,TIt is outdoor≤TIt is indoorWhen, and after holding 3-5 minutes, it opens high-tension distribution chamber of converting air exhauster and carries out room temperature lowering processing；
Step 3 works as TIt is indoor≥40℃、AndTIt is outdoor≤TIt is indoorWhen, open exhaust blower；Work as TIt is indoor≥
40℃、When, andTIt is outdoor≤TIt is indoor, then exhaust blower and dehumidifier are opened；Work as TIt is indoor≥40℃、When, andTIt is outdoor≥TIt is indoor, then open dehumidifier and dehumidify；
Step 4 works as TIt is indoor40 DEG C of <,When, andThen open exhaust blower；Work as TIt is indoor40 DEG C of <,AndIt is then not turned on exhaust blower, starting dehumidifier dehumidifies；
Step 5 works as TIt is indoorAt 40 DEG C of <, such as outdoor water capacity is less than indoor water capacity, i.e. dOutdoor water capacity< dIndoor water capacity, then open
Dynamic exhaust blower closes exhaust blower until indoor and outdoor water capacity is equal；
Step 6 works as TBuilding enclosure surface temperature> TDew-point temperature, then exhaust blower start-stop is not intervened, if TBuilding enclosure surface temperature< TDew-point temperature
And exhaust blower is then forcibly closed after continuing 3-5 minutes.
The calculation method of outdoor water capacity and indoor water capacity are as follows:
Step A, with switchgear house room temperature TIt is indoor≤ A and indoor relative humidityTo control target, A is temperature valve
Value, B are humidity threshold values；Real-time monitoring room air dry-bulb temperature TIndoor dry bulb, indoor air relative humidityOutdoor air
Dry-bulb temperature TOutdoor dry bulbWith outdoor air relative humidity
Step B, the humid air calculated under corresponding dry-bulb temperature is saturated partial pressure,
PIt is saturated partial pressure=(5.96485+0.43432TDry-bulb temperature+0.01804TDry-bulb temperature 2+5.41671×10-5TDry-bulb temperature 3+6.9644
×10-6TDry-bulb temperature 4)×102；
Step C, according to air humidity content formulaIn real-time measurement air
Under the conditions of dry-bulb temperature and wet-bulb temperature, available indoor and outdoor water capacity；
Step D, simultaneously according to water capacity dWater capacityCorresponding dew-point temperature is extrapolated, i.e.,
TBuilding enclosure surface temperature> TDew-point temperature。
The invention has the advantages that:
The present invention obtains sensitive temperature and humidity measurement point according to simulation result, and Temperature and Humidity point is arranged in sensitive measurement point；
Environmental control system is formed with cigarette sense monitoring point；Effectively ambient temperature and humidity is monitored, while configuration is more in switchgear house
Fans and dehumidifier, and controlled, the decision logic of proposition is very easy to accomplish in terms of control.By to multiple devices
Subitem control, according to the high monitoring point of temperature and humidity, start nearest equipment, may be implemented equipment independence, combination controlling party
Formula improves the accuracy of environmental Kuznets Curves, reduces the working time of unnecessary equipment, realizes energy-saving and emission-reduction；
The present invention is configured with more set blowers and dehumidifier in switchgear house, according to the data of monitoring point, judges in conjunction with movement
Logic can carry out subitem control to more Fans, dehumidifier, the exceeded environmental parameter provided according to monitoring point, and starting is nearest
Blower or dehumidifier the different control modes such as be adjusted, thus have and be activated individually, start more Fans and dehumidifier,
The accuracy controlling to spaces most in switchgear house may be implemented in this way.
It is less and unreasonable to the monitoring point distribution of indoor temperature and humidity to solve the prior art, although near to monitoring point
Environment receives the control of system, it can be difficult to whether the temperature and humidity of complementary space when guaranteeing that the monitoring point reaches requirement
Also reach requirement.In the place not monitored it is possible to there is environment situation not up to standard, lead to the generation of accident；2. controlling plan
On slightly, exists once environmental monitoring goes out not up to desired place, just will start all devices, entire environment is adjusted together
Section.One is inaccurate, to become lower in the environment temperature of low temperature to make some part reach standard, Bu Nengshi
Specific aim control now is carried out to the indoor space of distribution；Two start unnecessary equipment, increase the working time of equipment,
Energy consumption increases, and can not achieve the purpose of energy-saving and emission-reduction.
Specific embodiment
The purpose of the present invention is designing reasonable environmental control system, temperature, the relative humidity of indoor environment are controlled, is prolonged
Long life period of equipment.The temperature and relative humidity distribution situation of switchgear house are obtained by emulation, determines sensitive measurement point.At this
On the basis of, environmental control system measures room temperature, outdoor temperature, indoor cigarette sense, indoor humidity, outside humidity, leads to
Appropriate control strategy is crossed, judges to adjust the state that switchgear house environmental parameter reaches setting whether dehumidifier, exhaust blower movement.
Wind turbine and dehumidifier carry out subitem control, according to the high monitoring point of temperature and humidity, start nearest blower, dehumidifier is adjusted
Section.
When fire acousto-optic alarm monitoring has dense smoke situation, system issues alarm signal at once, while automatic starting exhaust blower is with most
Big wind speed operation, toxic and harmful gas in switch gear room is discharged before the deadline.When fire acousto-optic alarm is restored normally, then to stop
Only air draft is transferred to the normal temperature and humidity detection of switch gear room.
Real-time monitoring indoor and outdoor temperature and humidity
Space is determined on the basis of numerical simulation calculated result according to the sensitive measurement point that Numerical Simulation Results determine
The relationship of each state point temperature and relative humidity and sensitive measurement point, is obtained: T using temperature and relative humidity correction valueRoom temperature=
TSensitive measuring point+ΔTAmendment,Correction value size is determined according to temperature point and humidity measuring point.With high pressure
Switchgear house room temperature TIt is indoor≤ A and indoor relative humidityTo control target, real-time monitoring room air dry bulb temperature
Spend TIndoor dry bulb, indoor air relative humidityOutdoor air dry-bulb temperature TOutdoor dry bulb, outdoor air relative humidity
And calculate the humid air saturation partial pressure under corresponding dry-bulb temperature in real time by control system, that is,
PIt is saturated partial pressure=(5.96485+0.43432TDry-bulb temperature+0.01804TDry-bulb temperature 2+5.41671×10-5TDry-bulb temperature 3+6.9644
×10-6TDry-bulb temperature 4)×102
According to air humidity content:In real-time measurement air dry-bulb temperature
Under the conditions of wet-bulb temperature, indoor and outdoor water capacity can be obtained indirectly.Meanwhile according to water capacity dWater capacityIt can extrapolate corresponding
Dew-point temperature TDew point, it is desirable that indoor building enclosure surface temperature necessarily is greater than dew-point temperature, i.e. TBuilding enclosure surface temperature> TDew-point temperature, such as
This just can ensure that wall surface does not generate condensed water.
Control strategy
1) general requirement of high-tension distribution chamber of converting environmental Kuznets Curves: room temperature and wet is realized by rationally controlling ventiduct roadbed
Degree control, it is ensured that high-tension distribution chamber of converting workspace temperature T and relative humidity RH are no more than the threshold value A of setting, B, while requiring high pressure
Switchgear house air humidity content is less than outdoor air water capacity, i.e. dIt is indoor≤dIt is outdoor, in order to avoid power control cabinet wall surface condensation, need to detect
Power control cabinet sensitizing range temperature, while guaranteeing that wall surface temperature is higher than wall surface air dew point temperature, i.e. TWall surface≥TAir dew point temperature.With A=40
DEG C B=85% is setting value explanation.
It 2) is that cannot achieve room air dehumidification process if only by high voltage power distribution indoor and outdoor replacement aeration.Consider
The wet heating processes such as indoor machine cabinet radiates and the factors such as exterior wall heat transfer, and room temperature air condition change procedure is usually,
That is indoor air relative humidity is usually lower than outside relative humidity, but indoor and outdoor water capacity is divulged information after a period of time
Inevitable equal after ventilation, in the case that heat dissipation capacity is little indoors, indoor and outdoor relative humidity also tends to be equal.In consideration of it,
Under normal circumstances, there is no condensed waters on high-tension distribution chamber of converting interior building enclosure surface.Consider that day and night temperature is big, ventilation situation
Under, outdoor temp humid air is possible to generate condensed water, it is therefore desirable in real-time monitoring room when contacting indoor low temperature wall surface
Outer temperature and humidity and indoor enclosed structure wall surface temperature, the conjunction of room temperature and humidity is realized by tapping mode ventilation time
Reason control.Table 1 is that the movement of normal control judges information summary sheet, according to this table, starts nearest air draft when that should act
Machine and dehumidifier are acted.
The movement of 1 normal control of table judges information summary sheet
3) work as TIt is indoor>=40 DEG C,TIt is outdoorAt >=40 DEG C, it is failure to actuate；Work as TIt is indoor>=40 DEG C,TIt is outdoor
≤TIt is indoorWhen, to avoid blower frequent movement, it is desirable that the condition is used as control condition after continuing 3-5 minutes, opens at this time high
Switchgear house exhaust blower is pressed to carry out room temperature lowering processing.It can be required according to field control, rationally design the temperature for closing exhaust blower
Control threshold, such as control threshold when 35 DEG C of room temperature or equal indoor and outdoor temperature can be set, while comparing room
Inside and outside relative humidity, if relative humidity is higher than 85%, stops divulging information during aeration-cooling, if indoor relatively wet
Degree continues to 85% or more, then needs to open auxiliary dehumidifier and dehumidify.
If 4) TIt is indoor40 DEG C of <,When, andExhaust blower can then be opened；If TIt is indoor< 40
℃、AndIt is then not turned on exhaust blower, needs to intervene auxiliary dehumidifier at this time and dehumidifies.
If 5) TIt is indoor≥40℃、When, andTIt is outdoor≤TIt is indoor, then exhaust blower can be opened；Such as
Fruit TIt is indoor≥40℃、When, andTIt is outdoor≤TIt is indoor, then exhaust blower and dehumidifier can be opened；If
TIt is indoor≥40℃、When, andTIt is outdoor≥TIt is indoor, then can open dehumidifier and dehumidify.
6) work as TIt is indoorAt 40 DEG C of <, such as outdoor water capacity is less than indoor water capacity, i.e. dOutdoor water capacity< dIndoor water capacity, then start row
Blower, difference need to be reached less than 0.5% by being approximately equal to until indoor and outdoor water capacity is equal, at this；Close exhaust blower.To avoid blower
Frequent movement, then the condition continues 3~5 minutes.
7) the enclosed structure surface temperature for monitoring sensitive spot, if TBuilding enclosure surface temperature> TDew-point temperature, then do not intervene exhaust blower and open
Stop acting, if TBuilding enclosure surface temperature< TDew-point temperature, then need to forcibly close exhaust blower, while considering that intervention auxiliary dehumidifier is removed
It is wet.To avoid blower frequent movement, then the condition continues 3~5 minutes.
Implementation process
Switchgear house Environment Controlling Strategy of the invention the following steps are included:
1) sensors optimum placement is determined and is surveyed according to the distribution situation in high-tension distribution chamber of converting temperature field and relative humidity field
Amount point position.
The sensors optimum placement method are as follows: establish substation control buildings three-dimensional geometry simulation model using Ansys, benefit
Switchgear house temperature field and moisture field simulation analysis carried out to simulation model with Ansys, obtains temperature field under different height and wet
Field distribution analogous diagram is spent, Temperature Humidity Sensor is chosen by analogous diagram and is layouted.
Include: using the method that Ansys establishes substation control buildings three-dimensional geometry simulation model
Step A, the modeling of acquisition substation control buildings needs parameter, and the model parameter including substation control buildings, ventilation is used
Lower margin window number ndAnd parameter, ventilation fan number nfAnd parameter, number, place switchgear house position and the parameter of switchgear house switchgear；
Switchgear house model parameter includes length L, width W, height H；Ventilation lower margin window parameter includes wall where ventilation lower margin window
Plan-position, ventilation lower margin window resistance coefficient；Ventilation fan parameter includes wall plane position, ventilation fan stream where ventilation fan
Amount；Substation control buildings external environment temperature parameter Tout, outside relative humidity parameter Dout；Substation control buildings interior wall wall temperature
Parameter Twall, indoor environment temperature parameter Tin, indoor relative humidity parameter Din；Running environment requirement in substation control buildings
Environment temperature maximum of T max, relative humidity maximum value Dmax；Switchgear house switch cabinet parameter includes single switch cabinet heating power
Pk, switchgear porosity ξ；
Step B, the substation control buildings modeling acquired using step 1 needs parameter, establishes substation control buildings in Ansys
Three-dimensional geometry simulation model；
Step C, simplified model；Ignoring ancillary equipment fluid flow in high voltage power distribution room influences, by switchgear house switchgear
Heat source is set as plane heat source, and it is identical to set uniformity heat transfer property for high-tension distribution chamber of converting building enclosure；To obtain simplification
Substation control buildings three-dimensional geometry simulation model.
Switchgear house temperature field and moisture field simulation analysis are carried out to simulation model using Ansys, obtained under different height
The method in temperature field and moisture field distributed simulation figure are as follows:
Step D, to the full extent in performance switchgear house under the premise of fluid flow characteristics, the meter in switchgear house flow field is determined
Calculate domain, using SST hexahedral meshes to simulation model computational domain carry out it is discrete, then to switchgear house include switchgear, blower,
The local location of ventilation opening carries out auto grid plot, by carrying out local cypher processing to computational domain, after obtaining mesh refinement
Number of meshes and number of nodes；
Step E, the switchgear house of step 1, ventilation lower margin window, ventilation fan, switchgear house switchgear, switchgear house indoor and outdoor are utilized
The boundary condition and primary condition of environmental parameter setting simulation model；
Step F, solution strategies are set, and setting computation model is RNG k- ε turbulence model, and method for solving is simple calculation
Method, solving precision are Second-order Up-wind lattice, and the number of iterations N and termination condition is arranged；Emulating termination condition is energy residual error less than 10‐7, or inlet and outlet flow error is less than 10‐4；
Step G, start to emulate, until reaching emulation termination condition, obtain the temperature field under different height and moisture field point
Cloth analogous diagram.
The method that Temperature Humidity Sensor is layouted is chosen by analogous diagram are as follows: chooses temperature field and the humidity of different height
Field distribution analogous diagram, exists respectivelyHighest 4 points of temperature are chosen at H and minimum 4 points of temperature are made
The acquisition that the representative temperature data in different height temperature sensitizing range is realized for temperature sensor installation point, exists respectively Highest 4 points of relative humidity and minimum 4 points of relative humidity are chosen at H as humidity sensor
Device installation point realizes the acquisition of the representative relative humidity data in different height relative humidity sensitizing range.
2) indoor cigarette sense monitoring site is in the geometry middle position of indoor ceiling.
3) temperature-humidity sensor real-time monitoring indoor and outdoor temperature and humidity is utilized, and is transmitted to this automatic regulating system.
4) Threshold of Temperature And Humidity being arranged according to system, through the automatic logic judgment of system, take corresponding control exhaust blower with
The start and stop measure of dehumidifier guarantees that the indoor temperature and humidity of switchgear house is in suitable state.
Advantages of the present invention:
Real-time monitoring indoor and outdoor temperature and humidity
The premise that environmental Kuznets Curves are realized is that accurate and necessary monitoring is carried out to environmental parameter.Pass through high voltage power distribution room temperature
The simulation result of field and relative humidity field, determines sensitive measurement point.And temperature, humidity, cigarette sense test point are set in measurement point, it is real
When monitoring indoor and outdoor temperature and humidity and cigarette sense, the foundation acted to environmental control system offer.
Reasonable effective control logic
Monitoring according to sensitive measurement point to indoor and outdoor temperature and humidity, takes corresponding control mode to control in switchgear house
Temperature and humidity reach target value.Control strategy, as movement decision logic, provides different controls according to the different situations of temperature and humidity
Mode processed is adjusted environment whether controlling the movement of blower, dehumidifier.
The subitem control of blower, dehumidifier
More set blowers and dehumidifier are configured in switchgear house, it, can be in conjunction with movement decision logic according to the data of monitoring point
Subitem control is carried out to more Fans, dehumidifier, the exceeded environmental parameter provided according to monitoring point starts nearest blower or removes
Wet machine such as is adjusted, thus has and be activated individually, starts more Fans and dehumidifier at the different control modes, in this way can be real
Now to the accuracy controlling in spaces most in switchgear house.
Claims (6)
1. a kind of adjusting method of the switchgear house environment adjustment system based on sensors optimum placement, it includes sensor optimization cloth
Set the adjusting method with regulating system, it is characterised in that: the sensors optimum placement method are as follows: establish power transformation using Ansys
It stands switchgear house three-dimensional geometry simulation model, switchgear house temperature field and moisture field simulation analysis is carried out to simulation model using Ansys,
The temperature field under different height and moisture field distributed simulation figure are obtained, Temperature Humidity Sensor is chosen by analogous diagram and is layouted.
2. a kind of adjusting method of the environment automatic regulating system of substation control buildings according to claim 1, feature
It is: includes: using the method that Ansys establishes substation control buildings three-dimensional geometry simulation model
Step A, the modeling of acquisition substation control buildings needs parameter, and lower margin is used in the model parameter including substation control buildings, ventilation
Window number ndAnd parameter, ventilation fan number nfAnd parameter, number, place switchgear house position and the parameter of switchgear house switchgear；Distribution
Room model parameter includes length L, width W, height H；Ventilation lower margin window parameter includes wall plane where ventilation lower margin window
Position, ventilation lower margin window resistance coefficient；Ventilation fan parameter includes wall plane position, ventilation fan flow where ventilation fan；Become
Power station distribution outdoor environment temperature parameter Tout, outside relative humidity parameter Dout；Substation control buildings interior walls temperature parameter
Twall, indoor environment temperature parameter Tin, indoor relative humidity parameter Din；Running environment requires environment in substation control buildings
Temperature maximum Tmax, relative humidity maximum value Dmax；Switchgear house switch cabinet parameter includes single switch cabinet heating power Pk, open
Close cabinet porosity ξ；
Step B, the substation control buildings modeling acquired using step 1 needs parameter, establishes substation control buildings three-dimensional in Ansys
Geometric simulation model；
Step C, simplified model；Ignoring ancillary equipment fluid flow in high voltage power distribution room influences, by switchgear house switchgear heat source
It is set as plane heat source, it is identical to set uniformity heat transfer property for high-tension distribution chamber of converting building enclosure；To obtain simplified change
Power station switchgear house three-dimensional geometry simulation model.
3. a kind of adjusting method of the environment automatic regulating system of substation control buildings according to claim 1, feature
It is: switchgear house temperature field and moisture field simulation analysis is carried out to simulation model using Ansys, obtain the temperature under different height
The method of field and moisture field distributed simulation figure are as follows:
Step D, to the full extent in performance switchgear house under the premise of fluid flow characteristics, the calculating in switchgear house flow field is determined
Domain, it is discrete in computational domain progress to simulation model using SST hexahedral meshes, then include switchgear to switchgear house, blower, lead to
The local location in air port carries out auto grid plot, by carrying out local cypher processing to computational domain, after obtaining mesh refinement
Number of meshes and number of nodes；
Step E, the switchgear house of step 1, ventilation lower margin window, ventilation fan, switchgear house switchgear, switchgear house indoor and outdoor surroundings are utilized
The boundary condition and primary condition of parameter setting simulation model；
Step F, solution strategies are set, and setting computation model is RNG k- ε turbulence model, and method for solving is simple algorithm, is asked
Solution precision is Second-order Up-wind lattice, and the number of iterations N and termination condition is arranged；Emulating termination condition is energy residual error less than 10-7, or into
Rate of discharge error is less than 10-4；
Step G, start to emulate, until reaching emulation termination condition, the temperature field and humidity field distribution obtained under different height is imitated
True figure.
4. a kind of adjusting method of the environment automatic regulating system of substation control buildings according to claim 1, feature
It is: the method that Temperature Humidity Sensor is layouted is chosen by analogous diagram are as follows: choose temperature field and the moisture field of different height
Distributed simulation figure, exists respectivelyHighest 4 points of temperature are chosen at H and minimum 4 points of temperature are made
The acquisition that the representative temperature data in different height temperature sensitizing range is realized for temperature sensor installation point, exists respectivelyHighest 4 points of relative humidity and minimum 4 points of relative humidity are chosen at H as humidity sensor
Device installation point realizes the acquisition of the representative relative humidity data in different height relative humidity sensitizing range.
5. a kind of adjusting method of the environment automatic regulating system of substation control buildings according to claim 1, feature
Be: the adjusting method of the regulating system includes:
Step 1, when smoke monitoring element monitoring have dense smoke when, substation control buildings temperature and humidity automatic control system issue accuse
Alert signal, while toxic and harmful gas in switch gear room is discharged with maximum wind velocity operation for automatic starting exhaust blower；Work as smoke monitoring
Element do not monitor to stop air draft when dense smoke, is transferred to normal temperature and humidity detection；
Step 2 works as TIt is indoor>=40 DEG C,TIt is outdoorAt >=40 DEG C, it is failure to actuate；Work as TIt is indoor>=40 DEG C,TIt is outdoor
≤TIt is indoorWhen, and after holding 3-5 minutes, it opens high-tension distribution chamber of converting air exhauster and carries out room temperature lowering processing；
Step 3 works as TIt is indoor≥40℃、AndTIt is outdoor≤TIt is indoorWhen, open exhaust blower；Work as TIt is indoor≥40℃、When, andTIt is outdoor≤TIt is indoor, then exhaust blower and dehumidifier are opened；Work as TIt is indoor≥40℃、
When, andTIt is outdoor≥TIt is indoor, then open dehumidifier and dehumidify；
Step 4 works as TIt is indoor40 DEG C of <,When, andThen open exhaust blower；Work as TIt is indoor40 DEG C of <,AndIt is then not turned on exhaust blower, starting dehumidifier dehumidifies；
Step 5 works as TIt is indoorAt 40 DEG C of <, such as outdoor water capacity is less than indoor water capacity, i.e. dOutdoor water capacity< dIndoor water capacity, then start row
Blower closes exhaust blower until indoor and outdoor water capacity is equal；
Step 6 works as TBuilding enclosure surface temperature> TDew-point temperature, then exhaust blower start-stop is not intervened, if TBuilding enclosure surface temperature< TDew-point temperatureAnd it holds
Exhaust blower is then forcibly closed after 3-5 minutes continuous.
6. a kind of adjusting method of the environment automatic regulating system of substation control buildings according to claim 5, feature
It is: the calculation method of outdoor water capacity and indoor water capacity are as follows: step A, with switchgear house room temperature TIt is indoor≤ A and indoor phase
To humidityTo control target, A is threshold temperature, and B is humidity threshold values；Real-time monitoring room air dry-bulb temperature
TIndoor dry bulb, indoor air relative humidityOutdoor air dry-bulb temperature TOutdoor dry bulbWith outdoor air relative humidity
Step B, the humid air calculated under corresponding dry-bulb temperature is saturated partial pressure,
PIt is saturated partial pressure=(5.96485+0.43432TDry-bulb temperature+0.01804TDry-bulb temperature 2+5.41671×10-5TDry-bulb temperature 3+6.9644×10-6TDry-bulb temperature 4)×102；
Step C, according to air humidity content formulaIn real-time measurement air dry bulb
Under the conditions of temperature and wet-bulb temperature, available indoor and outdoor water capacity；
Step D, simultaneously according to water capacity dWater capacityCorresponding dew-point temperature is extrapolated, i.e.,
TBuilding enclosure surface temperature> TDew-point temperature。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109497A (en) * | 2019-04-10 | 2019-08-09 | 焦作华飞电子电器股份有限公司 | High aititude, the interior circulation pressure stabilizing stable control method of low temperature environment electric control gear |
| CN110764470A (en) * | 2019-08-31 | 2020-02-07 | 华南理工大学 | 10kV power distribution room temperature and humidity sensor optimized point distribution method |
| CN111854136A (en) * | 2020-07-31 | 2020-10-30 | 威垦机电(广州)科技有限公司 | Device and method for preventing moisture condensation at air outlet by using reheater |
| CN113553788A (en) * | 2021-07-23 | 2021-10-26 | 中国航发贵阳发动机设计研究所 | Simulation calculation method for ventilation capacity of aircraft engine lubricating system |
| CN116578146A (en) * | 2023-07-06 | 2023-08-11 | 南京欧控自动化有限公司 | Intelligent electrical cabinet control system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235613A (en) * | 2013-04-03 | 2013-08-07 | 天津大学 | System and method for actively controlling precision machine tool temperature fields |
| CN204358855U (en) * | 2014-12-12 | 2015-05-27 | 苏州工业园区设计研究院股份有限公司 | A kind of basement Intelligent dehumidifying system |
| CN105222269A (en) * | 2015-09-16 | 2016-01-06 | 唐棣 | A kind of substation control system and control method |
| CN105666244A (en) * | 2016-01-06 | 2016-06-15 | 北京工业大学 | Method for reducing number of boring bar thermal elongation error temperature measurement points of numerical-control boring machine under thermal effect |
| KR20180063662A (en) * | 2016-12-02 | 2018-06-12 | 주식회사 효림테크 | Distributing board having function of sensing high temperature of multi area |
| CN108334028A (en) * | 2018-01-31 | 2018-07-27 | 湖北文理学院 | A kind of determination method of the one-dimensional optimum temperature measuring point of machine tool chief axis |
| CN108536896A (en) * | 2018-02-28 | 2018-09-14 | 青岛昌盛日电太阳能科技股份有限公司 | Calculation Method of Temperature Field in a kind of photovoltaic DC-to-AC converter |
| CN108681357A (en) * | 2018-05-29 | 2018-10-19 | 贵州电网有限责任公司 | A kind of temperature and humidity controlsystem and control method of substation control buildings |
-
2018
- 2018-11-14 CN CN201811350415.6A patent/CN109412050B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235613A (en) * | 2013-04-03 | 2013-08-07 | 天津大学 | System and method for actively controlling precision machine tool temperature fields |
| CN204358855U (en) * | 2014-12-12 | 2015-05-27 | 苏州工业园区设计研究院股份有限公司 | A kind of basement Intelligent dehumidifying system |
| CN105222269A (en) * | 2015-09-16 | 2016-01-06 | 唐棣 | A kind of substation control system and control method |
| CN105666244A (en) * | 2016-01-06 | 2016-06-15 | 北京工业大学 | Method for reducing number of boring bar thermal elongation error temperature measurement points of numerical-control boring machine under thermal effect |
| KR20180063662A (en) * | 2016-12-02 | 2018-06-12 | 주식회사 효림테크 | Distributing board having function of sensing high temperature of multi area |
| CN108334028A (en) * | 2018-01-31 | 2018-07-27 | 湖北文理学院 | A kind of determination method of the one-dimensional optimum temperature measuring point of machine tool chief axis |
| CN108536896A (en) * | 2018-02-28 | 2018-09-14 | 青岛昌盛日电太阳能科技股份有限公司 | Calculation Method of Temperature Field in a kind of photovoltaic DC-to-AC converter |
| CN108681357A (en) * | 2018-05-29 | 2018-10-19 | 贵州电网有限责任公司 | A kind of temperature and humidity controlsystem and control method of substation control buildings |
Non-Patent Citations (1)
| Title |
|---|
| 贾鹤鸣等: "微型植物工厂温度传感器优化布置仿真研究", 《科技创新与生产力》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109497A (en) * | 2019-04-10 | 2019-08-09 | 焦作华飞电子电器股份有限公司 | High aititude, the interior circulation pressure stabilizing stable control method of low temperature environment electric control gear |
| CN110764470A (en) * | 2019-08-31 | 2020-02-07 | 华南理工大学 | 10kV power distribution room temperature and humidity sensor optimized point distribution method |
| CN111854136A (en) * | 2020-07-31 | 2020-10-30 | 威垦机电(广州)科技有限公司 | Device and method for preventing moisture condensation at air outlet by using reheater |
| CN113553788A (en) * | 2021-07-23 | 2021-10-26 | 中国航发贵阳发动机设计研究所 | Simulation calculation method for ventilation capacity of aircraft engine lubricating system |
| CN116578146A (en) * | 2023-07-06 | 2023-08-11 | 南京欧控自动化有限公司 | Intelligent electrical cabinet control system |
| CN116578146B (en) * | 2023-07-06 | 2023-09-22 | 南京欧控自动化有限公司 | Intelligent electrical cabinet control system |
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