CN117039648A - Intelligent dehumidifying device of wind power intelligent ring main unit and dehumidifying control method thereof - Google Patents

Intelligent dehumidifying device of wind power intelligent ring main unit and dehumidifying control method thereof Download PDF

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Publication number
CN117039648A
CN117039648A CN202311307210.0A CN202311307210A CN117039648A CN 117039648 A CN117039648 A CN 117039648A CN 202311307210 A CN202311307210 A CN 202311307210A CN 117039648 A CN117039648 A CN 117039648A
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Prior art keywords
humidity
dehumidifying
air
fan
state
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CN202311307210.0A
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CN117039648B (en
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李烽
李超
刁星
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Jiangsu Shuanghui Power Development Co Ltd
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Jiangsu Shuanghui Power Development Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/28Selection of materials for use as drying agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/261Drying gases or vapours by adsorption
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention discloses an intelligent dehumidifying device of a wind power intelligent ring main unit and a dehumidifying control method thereof, which are used for dehumidifying a cabinet body provided with electric elements. The intelligent dehumidifying device comprises a dehumidifying frame, a heat storage box, a fan, a dehumidifying barrel, a drain pipe and an air conveying pipe. The dehumidification frame is installed at the top of the inner cavity of the cabinet body, the top is communicated with the first air port, and the bottom is provided with air holes. The heat storage box is installed in the dehumidification frame. The heat storage box is filled with phase change materials. The fan is installed in the dehumidification frame, and one side fan surface is opposite to the first air opening. The dehumidification bucket is placed between the fan and the dehumidification frame bottom horizontally. The middle part of the dehumidifying barrel is provided with a plurality of through holes in the circumferential direction. The interior of the dehumidifying barrel is provided with an expansion block. A moisture absorption cotton pad is arranged between the expansion block and the inner wall of the dehumidifying barrel. One end of the drain pipe is positioned outside the cabinet body, and the other end extends into the dehumidifying barrel. The air delivery pipe is arranged in the heat storage box in a penetrating way. The device can be continuously used, and the moisture absorption cotton pad does not need to be manually replaced, so that the practicability is improved.

Description

Intelligent dehumidifying device of wind power intelligent ring main unit and dehumidifying control method thereof
Technical Field
The invention relates to the technical field of ring main units and intelligent control thereof, in particular to an intelligent dehumidifying device of a wind power intelligent ring main unit and a dehumidifying control method thereof.
Background
Wind-powered electricity generation intelligence looped netowrk cabinet is as electrical equipment of looped netowrk power supply, is widely used, but the looped netowrk cabinet is installed more in outdoor open air environment, and the humidity is great in the cabinet, and the looped netowrk cabinet often links to each other with the cable pit, easily leads to the cabinet in humidity great to appear the condensation even ponding phenomenon, so that cause the component short circuit or damage internal element, from this the moist problem of looped netowrk cabinet becomes one of the main fault cause in the looped netowrk cabinet.
At present, three measures are mainly taken, the first is to rely on operation and maintenance staff to regularly maintain the ring main unit according to experience, and clear away the condensation and the accumulated water in the ring main unit, but the condensation and the accumulated water are closely related to weather, so that the operation and maintenance staff cannot clean timely, and the loss of manpower and working hours, inconvenience in operation and potential safety hazard are brought; the second measure is to add a heater in the cabinet body and dry the water in the cabinet body by using the heater, but the higher the ambient temperature is, the more water vapor can be contained in the air, when the temperature is reduced, the water vapor which cannot be continuously contained in the air can be separated out in the form of liquid water, so the water vapor is also the symptom and root cause of the failure are treated; thirdly, the moisture absorption pad is added in the cabinet body, but the workload is great because the moisture absorption pad needs to be continuously checked and replaced, and if the moisture absorption pad cannot be replaced in time, the potential safety hazard still exists.
Disclosure of Invention
The invention aims to provide an intelligent dehumidifying device for a wind power intelligent ring main unit, which solves the defects of dehumidifying measures of three ring main units in the prior art.
The aim of the invention can be achieved by the following technical scheme:
an intelligent dehumidifying device of a wind power intelligent ring main unit is used for dehumidifying a cabinet body provided with electric elements. The top and the side wall of the cabinet body are respectively provided with a first air opening and a second air opening. The first air port and the second air port are respectively internally provided with a unidirectional air outlet component and a unidirectional air inlet component. The intelligent dehumidifying device comprises a dehumidifying frame, a heat storage box, a fan, a dehumidifying barrel, a drain pipe and an air conveying pipe.
The dehumidification frame is installed at the top of the inner cavity of the cabinet body, the top is communicated with the first air port, and the bottom is provided with air holes.
The heat storage box is arranged in the cabinet body. The heat storage box is filled with phase change materials.
The fan is installed in the dehumidification frame, and one side fan surface is opposite to the first air opening.
The dehumidification bucket is placed between the fan and the dehumidification frame bottom horizontally. The middle part of the dehumidifying barrel is provided with a plurality of through holes in the circumferential direction. The interior of the dehumidifying barrel is provided with an expansion block. A moisture absorption cotton pad is arranged between the expansion block and the inner wall of the dehumidifying barrel.
One end of the drain pipe is positioned outside the cabinet body, and the other end extends into the dehumidifying barrel.
The air delivery pipe is arranged in the heat storage box in a penetrating way. One end of the air delivery pipe extends into the dehumidifying frame, the air outlet points to the dehumidifying barrel, and the other end of the air delivery pipe is positioned in the cabinet body.
As a further scheme of the invention: also comprises a water flow detector, a vibrator and a controller.
The water flow detector is arranged in the drain pipe and is used for detecting the water flow discharged by the drain pipe.
The vibrator is installed in the heat storage tank.
The controller is used for controlling the vibrator to vibrate when the water flow detected by the water flow monitor exceeds the preset flow.
As a further scheme of the invention: one end of the drain pipe positioned in the dehumidification frame is connected with a water receiving box. The water receiving box is used for collecting water flow falling from the through hole.
As a further scheme of the invention: the diameter of the dehumidifying barrel is continuously reduced from the middle part to the two sides.
As a further scheme of the invention: the two ends of the dehumidifying barrel are rotatably arranged in the dehumidifying frame through rotating shafts, and the periphery of the outer side wall of the dehumidifying barrel is provided with overturning sheets. The center line of the dehumidifying barrel and the center line of the blade of the fan are not in the same plane.
As a further scheme of the invention: a humidity detector is also included.
The humidity detector is electrically connected with the controller and used for detecting the humidity in the cabinet body.
The controller is further configured to:
when the humidity detector detects that the humidity in the cabinet body is between the preset humidity I and the preset humidity II, the fan is controlled to rotate positively, so that the unidirectional air outlet assembly and the unidirectional air inlet assembly are respectively in an air outlet state and an air inlet state.
When the humidity detector detects that the humidity in the cabinet body is greater than the preset humidity II or the humidity increasing value in the cabinet body in the preset unit time exceeds the preset changing value, the fan is controlled to rotate reversely, so that the unidirectional air outlet assembly and the unidirectional air inlet assembly are both in a closed state.
As a further scheme of the invention: also comprises an air pipe assembly. The air pipe assembly comprises at least one group of transverse pipes which are installed on the inner wall of the cabinet body in a circumferential direction and at least one group of vertical pipes which correspond to the transverse pipes.
At least one group of transverse pipes are installed on the inner wall of the cabinet body in a circumferential direction.
At least one group of vertical pipes corresponding to the transverse pipes, one ends of the vertical pipes are communicated with the transverse pipes, and one ends of the vertical pipes extend to the top of the inner cavity of the dehumidifying frame.
The transverse pipe is provided with at least one air inlet on each side wall direction of the cabinet body. The air inlet is provided with an air inlet valve. A humidity detector is arranged at one side of the air inlet. The air inlet valve and the humidity detector are electrically connected with the controller.
The controller is also used for controlling the opening of the air inlet valve and controlling the reverse rotation of the fan when the humidity detected by any one humidity detector is greater than the preset humidity II, so that the unidirectional air outlet assembly and the unidirectional air inlet assembly are both in a closed state.
As a further scheme of the invention: the unidirectional air outlet assembly comprises a hinged plate and a limiting block.
The hinge plate is hinged in the first air port.
The stopper is installed in first wind gap.
When the fan is reversed, the hinged plate is attached to the limiting block to block the first air port.
As a further scheme of the invention: the second wind gap is provided with the dust screen and absorbs water the layer.
The invention also discloses a dehumidification control method based on the ring main unit intelligent dehumidification device, which comprises the following steps:
the humidity, temperature and wind speed information are collected through the sensor and are sent to the intelligent controller, the following algorithm steps are executed in the controller, the dehumidification efficiency is continuously improved according to different environmental conditions and seasonal changes, and the intelligent controller specifically comprises the following steps:
step 1, defining state representation of a system: including the current environmental conditions: humidity, temperature, wind speed, and device status: a state of a fan, a heat storage material, and a moisture absorption cotton pad (10);
the state representation defines the environment and device state of the system at any given point in time, including the following elements:
humidity H: humidity levels in the current environment, typically expressed in percent;
temperature T: the temperature of the current environment is typically expressed in degrees celsius or degrees fahrenheit;
Wind speed W: the current wind speed can influence humidity distribution and dehumidification efficiency;
fan state FS: the current state of the fan, including forward rotation, reverse rotation or shut down, can affect air flow and dehumidification efficiency;
state of heat storage material (Thermal Storage Material Status): the state of the heat storage material, including the heating level, affects the air heating and drying efficiency;
absorbent cotton pad state (Moisture Absorption Pad Status): the state of the absorbent cotton pad, indicating whether replacement or maintenance is required, the state of the absorbent cotton pad affecting humidity reduction efficiency;
expansion block state (Expansion Block Status): the state of the expansion block, which indicates whether replacement or maintenance is needed, affects the extrusion and drainage efficiency of humidity;
the state variables will be used as inputs for intelligent control to select the best operation at each time step to optimize system performance, by observing the current humidity and temperature, determining if the fan and heat storage materials and their operating levels need to be activated; the system may also monitor the status of the absorbent pad and the expansion block to determine if maintenance operations are needed;
step 2, action space: defining actions that the system can take that will affect the environment and the state of the device, including controlling the forward or reverse rotation of the fan, adjusting the heating level of the heat storage material, adjusting the fan speed;
Fan control: the fan is one of the core components of the dehumidification device, and the actions include the following options:
forward rotation: activating a fan to generate an air flow in the dehumidifying frame, thereby facilitating the dehumidification and drying of the absorbent cotton pad and the expansion block;
reversing: reversing the fan to change the direction of the air flow, helping to treat humidity evenly;
closing: turning off the fan to stop the air flow;
heating the heat storage material: the heat storage material may release the stored heat by heating, thereby improving dehumidification efficiency, the actions including the following options:
adjusting the heating level: increasing or decreasing the heating level of the heat storage material to control the amount of heat released;
fan speed adjustment: the speed of the fan may be adjusted to control the air flow, the actions including the following options:
increasing the fan speed: increasing the rotational speed of the fan to increase the air flow;
reducing fan speed: reducing the rotation speed of the fan to reduce the air flow;
other operations: other operations may also be defined, depending on the specific design of the system, including maintenance or replacement operations of the absorbent pad and the expansion block (11), and supplementary operations of the heat storage material;
these operations will be selected at each time step by the intelligent agent and sent as output into the system to be performed;
Step 3, setting a reward function (reward function) which can be defined according to humidity and energy consumption factors, and is generally expected to maximize rewards, namely reduce humidity and reduce energy consumption, according to the performance of the system to evaluate each action; the bonus function is designed as follows:
reward Function (reorder Function) =α Δhumidity- β Δenergy consumption
Wherein Δhumidity represents a decrease in humidity after an action is performed, and Δenergy consumption represents a decrease in energy consumption after an action is performed; alpha and beta are weight coefficients for balancing the importance of humidity reduction and energy consumption; next, a detailed description will be given of how to calculate the Δhumidity and the Δenergy consumption:
3.1. delta humidity:
delta humidity can be expressed as the change in humidity between the current time step t and the previous time step t-1, and the specific calculation may include:
delta humidity = humidity (t-1) -humidity (t)
Here, the humidity (t-1) is the humidity of the previous time step, the humidity (t) is the humidity of the current time step, and Δhumidity may be used to indicate the degree to which the intelligent agent reduces the humidity by performing an operation;
3.2. delta energy consumption:
delta energy consumption represents the reduction in energy consumption after an action is performed, which can be estimated by:
Delta energy consumption = energy consumption (t-1) -energy consumption (t)
Here, the energy consumption (t-1) is the energy consumption of the previous time step, and the energy consumption (t) is the energy consumption of the current time step; delta energy consumption is used to indicate the extent to which the intelligent agent reduces energy consumption by performing an operation;
finally, substituting delta humidity and delta energy consumption into the reward function, and calculating a reward value according to the weight coefficients alpha and beta:
rewarding = alpha delta humidity-beta delta energy consumption
By this bonus function, the bonus value is maximized, i.e. the humidity is reduced and the energy consumption is reduced; if the control is successful in reducing humidity and reducing energy consumption, it will get a positive prize value, which will encourage it to continue to take similar actions in similar circumstances; conversely, if the controlled operation results in an increase in humidity or energy consumption, the prize will be negative and the system will attempt to avoid these operations;
step 4. In reinforcement learning, the value of each state is typically represented using a value function (value function), calculated by Bellman evaluation:
bellman evaluation is an important Equation in reinforcement learning that describes the relationship between value functions, and for a state value function V(s) and an action value function Q (s, a), bellman evaluation can be expressed as:
Bellman evaluation of the state value function:
V(s) = Σ [P(s' | s, a) * (R(s, a, s') + γ * V(s'))]
bellman evaluation of the action value function:
Q(s, a) = Σ [P(s' | s, a) * (R(s, a, s') + γ * max(Q(s',a'))]
wherein P (s '|s, a) represents the probability of transitioning to state s' after taking action a in state s, R (s, a, s ') represents the reward that transitions to state s' and is obtained after taking action a in state s, and γ is a discount factor for balancing the importance of current rewards and future rewards;
learning the action value function Q (s, a) by using a Q-learning algorithm, the algorithm comprising the steps of:
a. initializing Q (s, a) to an arbitrary value, typically zero;
b. at each time step t, the agent observes the current state s (t), and selects action a (t) according to a certain policy (e.g., epsilon-greedy policy);
c. performing action a (t), observing prize r (t) and new state s (t+1);
d. q value is updated using Bellman evaluation:
q (s (t), a (t))=q (s (t), a (t)) +α [ r (t) +γ ] max (Q (s (t+1), a')) -Q (s (t), a (t)) ] wherein α is the learning rate, controlling the update step size;
e. repeating steps b-d until a stopping condition is met, for example, a maximum number of training steps or a Q value is reached to be stable;
step 5, controlling the fan (18) to rotate forwards or reversely, wherein the unidirectional air outlet component and the unidirectional air inlet component are respectively in an air outlet state and an air inlet state during forward rotation, external air enters the cabinet body (1) through the second air port (102), then enters the dehumidifying frame (3) through the air hole (301), and finally is discharged from the first air port (101); when the cabinet is in reverse rotation, the unidirectional air outlet component and the unidirectional air inlet component are in a closed state, air in the cabinet body (1) enters from the bottom end of the air conveying pipe (7) and is discharged into the dehumidification frame (3) from the upper end, and finally enters the cabinet body (1) again through the air hole (301);
Step 6, absorbing moisture in the air passing through the dehumidifying frame (3) by a moisture absorption cotton pad (10) in the dehumidifying barrel (5);
step 7, the expansion block (11) expands after contacting with the moisture in the moisture absorption cotton pad (10), the moisture absorption cotton pad (10) is extruded, and the water produced by extrusion is discharged from the drain pipe (4);
and 8, heating air in the air conveying pipe (7) by heat release of heat storage materials in the heat storage box (8), blowing heated hot air into the dehumidifying frame (3), and drying the moisture absorption cotton pad (10) and the expansion block (11).
The invention has the beneficial effects that:
according to the intelligent dehumidifying device for the ring main unit, the unidirectional air outlet component and the unidirectional air inlet component are respectively arranged in the first air opening and the second air opening, the unidirectional air outlet component and the unidirectional air inlet component are respectively in an air outlet state and an air inlet state when the fan rotates positively, external air enters the cabinet body through the second air opening and then enters the dehumidifying frame through the air holes, and finally, the air with higher humidity in the cabinet body is discharged from the first air opening when the air exchange with external air is realized. When the fan is reversed, the unidirectional air outlet component and the unidirectional air inlet component are in a closed state, air in the cabinet body enters from the bottom end of the air conveying pipe and is discharged into the dehumidifying frame from the upper end, and finally enters the cabinet body again through the air holes. The moisture absorbing cotton pad in the dehumidifying tub absorbs moisture in the air passing through the dehumidifying frame. The expansion block expands after contacting with the moisture in the moisture absorption cotton pad, the moisture absorption cotton pad is extruded, the water generated by extrusion is discharged by the drain pipe, and the efficiency of removing the humidity in the cabinet body is greatly improved. And the heat storage material in the heat storage box releases heat to heat the air in the air conveying pipe, so that heated hot air is blown into the dehumidifying frame, and the moisture-absorbing cotton pad and the expansion block are dried, so that the device can be continuously used, the moisture-absorbing cotton pad does not need to be manually replaced, and the practicability is improved.
The intelligent dehumidification method can automatically learn the optimal control strategy to adapt to different environmental conditions and seasonal changes. This means that the device can operate efficiently under a variety of humidity, temperature and wind speed conditions without requiring manual adjustment. The reinforcement learning algorithm is adopted to help reduce the energy consumption to the maximum extent. The system can intelligently select when to start the fan, adjust the heating level of the heat storage material, and control the fan speed, thereby minimizing unnecessary energy waste. Furthermore, the algorithm can effectively control the system to reduce the humidity, which is important for the wind power intelligent ring main unit. Optimization of humidity control helps to prevent excessive humidity and reduce corrosion and damage to electrical equipment. By self-learning and intelligent control, the system can operate more stably, reducing equipment failure and maintenance requirements. This helps to extend the life of the device and reduce maintenance costs. Reinforcement learning algorithms may also be integrated with remote monitoring systems to enable operators to remotely monitor the performance of the device and perform maintenance as needed. This improves maintainability of the system and convenience of remote operation.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the intelligent dehumidifying apparatus of the ring main unit of the present invention;
FIG. 2 is a schematic view of a first tuyere structure according to the present invention;
FIG. 3 is a front view of the intelligent dehumidifying apparatus of the ring main unit of the present invention;
FIG. 4 is a schematic view of the structure of the dehumidifying tub of the present invention;
FIG. 5 is a schematic layout of a roll-over sheet in the present invention;
fig. 6 is a schematic layout of the flip chip and fan of the present invention.
In the figure: 1. a cabinet body; 101. a first tuyere; 102. a second tuyere; 2. a protection plate; 3. a dehumidifying frame; 301. air holes; 4. a drain pipe; 5. a dehumidifying tub; 6. an air duct assembly; 7. an air delivery pipe; 8. a heat storage tank; 9. an air inlet head; 10. a moisture absorbent cotton pad; 11. an expansion block; 12. a telescoping member; 13. a hinged plate; 14. a limiting block; 15. a vibrator; 16. an air inlet; 17. a turnover piece; 18. a fan.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the invention discloses an intelligent dehumidifying device for a wind power intelligent ring main unit, which is used for dehumidifying a main unit body 1 provided with electric elements. The top and the side wall of the cabinet body 1 are respectively provided with a first air port 101 and a second air port 102. The first air port 101 and the second air port 102 are respectively provided with a unidirectional air outlet component and a unidirectional air inlet component. The intelligent dehumidifying device comprises a dehumidifying frame 3, a heat storage box 8, a fan 18, a dehumidifying barrel 5, a drain pipe 4 and an air conveying pipe 7.
The dehumidifying frame 3 is installed at the top of the inner cavity of the cabinet body 1, the top is communicated with the first air port 101, and the bottom is provided with an air hole 301.
The heat storage tank 8 is installed in the cabinet 1. The heat storage tank 8 is filled with a phase change material.
The fan 18 is installed in the dehumidifying frame 3 with one side fan surface facing the first air port 101.
The dehumidifying tub 5 is horizontally placed between the fan 18 and the bottom of the dehumidifying frame 3. The middle part of the dehumidification barrel 5 is provided with a plurality of through holes in a circumferential direction. The dehumidifying tub 5 is internally installed with an expansion block 11. A moisture absorption cotton pad 10 is arranged between the expansion block 11 and the inner wall of the dehumidification barrel 5.
One end of the drain pipe 4 is positioned outside the cabinet body 1, and the other end extends into the dehumidifying barrel 5.
The air delivery pipe 7 is arranged in the heat storage box 8 in a penetrating way. One end of the air delivery pipe 7 extends into the dehumidifying frame 3, the air outlet points to the dehumidifying barrel 5, and the other end is positioned in the cabinet body 1.
It should be noted that, the intelligent dehumidifying device is arranged in the cabinet body 1 and is used for dehumidifying the inner cavity of the cabinet body 1, so as to prevent water from damaging electric elements in the cabinet body 1 caused by condensation formed in the cabinet body 1 or excessive humidity in the air.
It should be understood that:
1) The first air port 101 and the second air port 102 may be provided in plurality according to actual needs, but it should be noted that the arrangement range of the first air port 101 should not exceed the range covered by the fan blade during operation. Meanwhile, the first air port 101 and the second air port 102 should be provided with corresponding unidirectional air outlet components and unidirectional air inlet components, the specific types of the unidirectional air outlet components and the unidirectional air inlet components are not limited, unidirectional air outlet of the first air port 101 can be mainly realized, unidirectional air inlet of the second air port 102 can be realized, for example, a common unidirectional valve in the market can be adopted in some embodiments; of course, in other embodiments, some self-driven structures according to the forward and reverse rotation of the fan 18 may be adopted, and referring to fig. 2, the unidirectional air outlet assembly may include the hinge plate 13 and the limiting block 14. The hinge plate 13 is hinged in the first tuyere 101. The stopper 14 is installed in the first tuyere 101. When the fan 18 is reversed, the hinged plate 13 is attached to the limiting block 14 to block the first air port 101. The corresponding unidirectional air inlet assembly and unidirectional air outlet assembly are similar in structure, the difference is that the arrangement of the limiting block 14 is that the limiting block 14 in the first air port 101 is close to one side of the inner cavity of the cabinet body 1, the limiting block 14 in the second air port 102 is close to one side of the outer side of the cabinet body 1, if necessary, the hinged plate 13 of the second air port 102 can be hinged at the top of the air port, the hinged plate 13 of the second air port 102 can swing conveniently, and when the air pressure at the bottom of the cabinet body 1 is increased, the hinged plate 13 can timely seal the second air port 102. Therefore, when the fan 18 rotates positively, negative pressure between the top of the fan 18 and the cabinet 1 can cause the hinged plate 13 of the first air port 101 to plug the first air port 101, the fan 18 works to enable air in the dehumidifying tub 5 to be discharged to the bottom of the cabinet 1 through the air hole 301, so that air pressure is increased, and the hinged plate 13 in the second air port 102 plugs the second air port 102, at the moment, air at the bottom of the cabinet 1 enters the dehumidifying frame 3 through the air conveying pipe 7 to form circulation, and the air is continuously enabled to contact the moisture absorption cotton pad 10 of the dehumidifying tub 5 to absorb moisture in the air. When the fan 18 rotates forward, the second air port 102 and the second air port 102 are both in an open state, so that external air is continuously sucked into the cabinet body 1 through the second air port 102 and then is discharged through the first air port 101, the air exchange with the outside is realized, and the moisture in the cabinet body 1 can be reduced. Specifically, the forward and reverse rotation of the fan 18 are selectively controlled according to the actual situation.
It should be noted that it is also possible to provide,
firstly, in order to facilitate air at the bottom of the cabinet body 1 to smoothly enter the air delivery pipe 7, an air inlet head 9 should be arranged at the bottom of the air delivery pipe 7, and the air inlet should have a certain air suction capability when necessary, so that the air can be sucked by external control.
Next, the second tuyere 102 is provided with a dust screen and a water absorbing layer. In order to prevent dust and moisture in the outside air from directly entering the cabinet 1, the electrical components are damaged.
2) The dehumidification cabinet is located at the top of the inner cavity of the cabinet body 1, the air conveying pipe 7 is arranged along the inner portion of the cabinet body 1, the heat storage box 8 is also flat, the dehumidification cabinet is arranged on the inner side wall of the cabinet body 1, the space inside the cabinet body 1 is not occupied as much as possible, and the installation position of an electric element is not interfered.
3) The type of the phase change material in the heat storage box 8 is not limited, the heat in the cabinet body 1 can be collected, the collected heat can be released when necessary, the material can be selected by considering the normal working temperature in the cabinet body 1, in some embodiments of the invention, sodium acetate trihydrate can be adopted, the latent heat value of the sodium acetate trihydrate in the medium-low temperature phase change material is more than 200kJ/kg, compared with the common heat storage materials such as paraffin, fatty acid and the like, the latent heat advantage is huge, the melting point of the material with the melting point of about 58 ℃ is more suitable for the interior of the cabinet body 1, and the material with the lower melting point can be selected according to actual needs.
It should be noted that it is also possible to provide,
firstly, a corresponding vibrator 15 is arranged in the heat storage box 8, and if necessary, the phase change interface of the vibrator 15 is destroyed, so that the heat storage and release process is accelerated.
Secondly, the air delivery pipe 7 is prevented from being arranged in a straight line in the heat storage box 8, and is arranged in a bending mode as much as possible, so that the functional length in the heat storage box 8 is increased.
4) The expansion block 11 is made of expansion rubber strips or other expansion materials commonly used in the market, the expansion block 11 can be connected with the expansion piece 12 through two sides, the other end of the expansion piece 12 is fixed at two ends of the dehumidifying barrel 5, the expansion block 11 can be always positioned in the middle of the dehumidifying barrel 5, and the absorbent cotton pad 10 can be made of common sponge absorbent materials. The expansion block 11 can squeeze the absorbent cotton pad 10 after being expanded by water, and squeeze out the moisture in the absorbent cotton pad 10.
5) The barrel diameter of the dehumidifying barrel 5 can be continuously reduced from the middle part to the two sides, and the radian is set, so that air circulation is facilitated, and the air exchange rate is improved.
6) The top of the cabinet 1 should be provided with a protection plate 2 to prevent water from flowing into the first tuyere 101.
According to the intelligent dehumidifying device for the ring main unit, the unidirectional air outlet component and the unidirectional air inlet component are respectively arranged in the first air port 101 and the second air port 102, the unidirectional air outlet component and the unidirectional air inlet component are respectively in an air outlet state and an air inlet state when the fan 18 rotates positively, external air enters the cabinet body 1 through the second air port 102, enters the dehumidifying frame 3 through the air holes 301, and finally is discharged from the first air port 101, so that air with higher humidity in the cabinet body 1 is exchanged with external air. When the fan 18 is reversed, the unidirectional air outlet component and the unidirectional air inlet component are both in a closed state, air in the cabinet body 1 enters from the bottom end of the air conveying pipe 7, is discharged into the dehumidifying frame 3 from the upper end, and finally enters the cabinet body 1 again through the air holes 301. The moisture absorbing cotton pad 10 in the dehumidifying tub 5 adsorbs moisture in the air passing through the dehumidifying frame 3. The expansion block 11 expands after contacting with the moisture in the moisture absorption cotton pad 10, the moisture absorption cotton pad 10 is extruded, the water generated by extrusion is discharged by the drain pipe 4, and the efficiency of removing the humidity in the cabinet body 1 is greatly improved. And the heat storage material in the heat storage box 8 releases heat to heat the air in the air conveying pipe 7, so that heated hot air is blown into the dehumidifying frame 3, and the moisture-absorbing cotton pad 10 and the expansion block 11 are dried, so that the device can be continuously used, the moisture-absorbing cotton pad 10 does not need to be manually replaced, and the practicability is improved.
In some embodiments of the present invention, a water flow detector, vibrator 15 and controller may also be included.
A water flow detector is provided in the drain pipe 4 for detecting the flow of water discharged by the drain pipe 4.
The vibrator 15 is installed in the heat storage tank 8.
The controller is used for controlling the vibrator 15 to vibrate when the water flow detected by the water flow monitor exceeds the preset flow.
It should be noted that the preset flow rate should be determined according to the material dimensions of the absorbent pad 10 and the expansion block 11, and the preset flow rate is mainly set to prevent a small amount of water from dripping to touch the controller to control the vibrator 15 to work. When the vibrator 15 works, the heat storage box 8 releases heat, the air in the air delivery pipe 7 is properly heated, and the heated air is blown to the dehumidifying barrel 5 in the cabinet body 1, and the moisture absorption cotton pad 10 and the expansion block 11 are dried.
In some embodiments of the present invention, referring to fig. 3, a water receiving box is connected to one end of the drain pipe 4 located in the dehumidifying frame 3. The water receiving box is used for collecting water flow falling from the through hole. Through the setting of water receiving box, can effectually collect rivers, can not flow into in the cabinet body 1.
In some embodiments of the present invention, two ends of the dehumidifying tub 5 are rotatably mounted in the dehumidifying frame 3 through a rotation shaft, and the outer side wall of the dehumidifying tub 5 is circumferentially provided with the overturning sheets 17. The center line of the dehumidifying tub 5 is not in the same plane with the center line of the blades of the fan 18. Through making dehumidification bucket 5 rotate and install in dehumidification frame 3 to be provided with upset piece 17, when fan 18 rotates, can blow to upset piece 17, drive dehumidification bucket 5 and carry out suitable rotation, can make full use of all moisture absorption cotton pads 10, when the stoving, also can carry out all-round stoving to moisture absorption cotton pads 10 for drying efficiency.
In some embodiments of the invention, a humidity detector may also be included.
The humidity detector is electrically connected with the controller and is used for detecting the humidity in the cabinet body 1.
The controller is further configured to:
when the humidity detector detects that the humidity in the cabinet body 1 is between the preset humidity I and the preset humidity II, the fan 18 is controlled to rotate positively, so that the unidirectional air outlet component and the unidirectional air inlet component are respectively in an air outlet state and an air inlet state.
When the humidity detector detects that the humidity in the cabinet body 1 is greater than the preset humidity II or the humidity increasing value in the cabinet body 1 exceeds the preset change value in a preset unit time, the fan 18 is controlled to rotate reversely, so that the unidirectional air outlet assembly and the unidirectional air inlet assembly are both in a closed state.
It should be noted that, the preset humidity I and the preset humidity II are set according to actual conditions and historical experience, and the humidity exceeding the preset humidity I represents that the humidity in the cabinet body 1 exceeds a normal value, and air exchange with the outside is needed to be performed, so that the humidity is reduced. Exceeding the preset humidity two represents that the humidity in the current cabinet 1 exceeds the safety value, and the dehumidification operation needs to be performed urgently. The fact that the humidity increasing value in the cabinet body 1 exceeds the preset change value in the preset unit time indicates that the outside humidity is greater than the humidity in the cabinet body 1, and air exchange with the outside cannot be performed.
In some embodiments of the invention, an air duct assembly 6 is also included. The air duct assembly 6 comprises at least one group of transverse pipes which are installed on the inner wall of the cabinet body 1 in a circumferential direction and at least one group of vertical pipes corresponding to the transverse pipes.
At least one group of transverse pipes are installed on the inner wall of the cabinet body 1 in a circumferential direction.
At least one group of vertical pipes corresponding to the transverse pipes, one ends of the vertical pipes are communicated with the transverse pipes, and one ends of the vertical pipes extend to the top of the inner cavity of the dehumidifying frame 3.
The cross tube is provided with at least one air inlet 16 in the direction of each side wall of the cabinet 1. The intake port 16 is provided with an intake valve. A humidity detector is provided on one side of the air inlet 16. The air inlet valve and the humidity detector are electrically connected with the controller.
The controller is further configured to control the intake valve to open and the fan 18 to reverse when the humidity detected by any one of the humidity detectors is greater than the second preset humidity, so that the unidirectional air outlet assembly and the unidirectional air inlet assembly are both in a closed state.
Through setting up tuber pipe subassembly 6, humidity all around in the detection cabinet body 1 that can all-round avoids appearing by the condition that does not detect because of local humidity is too high, and the setting up of the horizontal pipe of hoop can occupy the space in the cabinet body 1 in minimum.
In one embodiment of the invention, a dehumidification method based on the intelligent dehumidification device of the ring main unit is also disclosed, and the dehumidification method comprises the following steps:
The fan 18 is controlled to rotate forward or reversely, the unidirectional air outlet component and the unidirectional air inlet component are respectively in an air outlet state and an air inlet state during forward rotation, external air enters the cabinet body 1 through the second air port 102, then enters the dehumidifying frame 3 through the air holes 301, and finally the air is discharged through the first air port 101. When the cabinet is reversed, the unidirectional air outlet component and the unidirectional air inlet component are in a closed state, air in the cabinet body 1 enters from the bottom end of the air conveying pipe 7, is discharged into the dehumidifying frame 3 from the upper end, and finally enters the cabinet body 1 again through the air holes 301.
The moisture absorbing cotton pad 10 in the dehumidifying tub 5 adsorbs moisture in the air passing through the dehumidifying frame 3.
The expansion block 11 expands after contacting with the moisture in the absorbent pad 10, presses the absorbent pad 10, and the water produced by the pressing is discharged from the drain pipe 4.
The heat storage material in the heat storage box 8 releases heat to heat the air in the air delivery pipe 7, so that heated hot air is blown into the dehumidifying frame 3, and the moisture absorption cotton pad 10 and the expansion block 11 are dried.
To continuously improve dehumidification efficiency according to different environmental conditions and seasonal variations. The system can automatically adapt to different working conditions, thereby improving energy efficiency and reducing energy consumption. The humidity, temperature and wind speed information are collected through the sensor and are sent to the intelligent controller, the following algorithm steps are executed in the controller, and the dehumidification efficiency is continuously improved according to different environmental conditions and seasonal changes.
1. Defining a state representation of the system: including current environmental conditions such as humidity, temperature, wind speed, and equipment conditions such as fan, heat storage material, moisture absorbent cotton pad conditions.
The state representation defines the environment and device state of the system at any given point in time, including the following elements:
humidity H: humidity levels in the current environment are typically expressed in percent. Humidity is one of the main targets of dehumidification operation and is therefore an important state variable.
Temperature T: the temperature of the current environment is typically expressed in degrees celsius or degrees fahrenheit. Temperature affects humidity and device performance and should therefore also be included in the status representation.
Wind speed W: current wind speed, which can affect humidity distribution and dehumidification efficiency. If the external wind speed is high, the fan may need to be adjusted to accommodate the amount of wind.
Fan state FS: the current state of the fan includes forward rotation, reverse rotation, or off. The fan condition can affect air flow and dehumidification efficiency.
State of heat storage material (Thermal Storage Material Status): the state of the heat storage material, including the heating level. The state of the heat storage material may affect the air heating and drying efficiency.
Absorbent cotton pad state (Moisture Absorption Pad Status): the status of the absorbent pad indicates whether replacement or maintenance is required. The state of the absorbent cotton pad can affect the humidity reducing efficiency.
Expansion block state (Expansion Block Status): the status of the expansion block indicates whether replacement or maintenance is required. The state of the expansion block may affect the squeezing and drainage efficiency of the humidity.
Other relevant state variables: other state variables, such as equipment failure conditions, airflow path conditions, etc., may also be included depending on the particular design of the system.
The state variables will be used as inputs to the intelligent control for selecting the best operation at each time step to optimize system performance. By observing the current humidity and temperature, it is determined whether the fan and the heat storage material and their operating levels need to be activated. The system may also monitor the status of the absorbent pad and the expansion block to determine if maintenance operations are required. By including such critical information in the state representation, the intelligent control can automatically adjust system operation according to actual conditions to improve energy efficiency and reduce energy consumption.
2. Action space: then, the actions that the system can take are defined, which will affect the environment and the state of the device. The actions include controlling the forward rotation or reverse rotation of the fan, adjusting the heating level of the heat storage material, adjusting the speed of the fan, and the like.
Fan control: the fan is one of the core components of the dehumidifying apparatus. The actions include the following options:
Forward rotation: the fan is activated to create an air flow within the dehumidification frame to assist in the dehumidification and drying of the absorbent cotton pad and the expansion block.
Reversing: reversing the fan to change the direction of the air flow may help to treat humidity evenly.
Closing: the fan is turned off to stop the air flow.
Heating the heat storage material: the heat storage material may release the stored heat by heating, thereby improving dehumidifying efficiency. The actions include the following options:
adjusting the heating level: the heating level of the heat storage material is increased or decreased to control the amount of heat released.
Fan speed adjustment: the speed of the fan may be adjusted to control the air flow. The actions include the following options:
increasing the fan speed: the rotational speed of the fan is increased to increase the air flow.
Reducing fan speed: the rotational speed of the fan is reduced to reduce the air flow.
Other operations: other operations, such as maintenance or replacement operations of the absorbent pad and the expansion block, supplementary operations of the heat storage material, etc., may also be defined according to the specific design of the system.
These operations will be selected at each time step by the intelligent agent and sent as output into the system to be performed. Selecting the correct operation will help optimize humidity reduction efficiency and energy consumption to accommodate different environmental conditions and operating requirements.
3. Bonus function: a reward function (reward function) is set that will evaluate each action based on the performance of the system. This bonus function may be defined in terms of humidity and energy consumption, among other factors. It is often desirable to maximize rewards, i.e. reduce humidity and reduce energy consumption.
The rewarding function is a very important part of reinforcement learning, which is used to evaluate the performance of intelligent control after performing different actions, the goal of the rewarding function is to encourage intelligent agents to reduce humidity and reduce energy consumption, so the rewarding function can be designed as follows:
reward Function (reorder Function) =α Δhumidity- β Δenergy consumption
Wherein Δhumidity means a decrease in humidity after an operation is performed, and Δenergy consumption means a decrease in energy consumption after an operation is performed. Alpha and beta are weight coefficients for balancing the importance of humidity reduction and energy consumption. The choice of these two coefficients will depend on the specific application scenario and system design.
Next, a detailed description will be given of how to calculate the Δhumidity and the Δenergy consumption:
1. delta humidity (Change in Humidity):
delta humidity can be expressed as the change in humidity between the current time step t and the previous time step t-1. Specific calculation modes may include:
Delta humidity = humidity (t-1) -humidity (t)
Here, the humidity (t-1) is the humidity of the previous time step, and the humidity (t) is the humidity of the current time step. Delta humidity may be used to indicate the extent to which the intelligent agent reduces humidity by performing an operation.
2. Delta energy consumption (Change in Energy Consumption):
delta energy consumption represents the reduction in energy consumption after an action is performed, which can be estimated by:
delta energy consumption = energy consumption (t-1) -energy consumption (t)
Here, the energy consumption (t-1) is the energy consumption of the previous time step, and the energy consumption (t) is the energy consumption of the current time step. Delta energy consumption is used to indicate the extent to which the intelligent agent reduces energy consumption by performing an operation.
Finally, substituting delta humidity and delta energy consumption into the reward function, and calculating a reward value according to the weight coefficients alpha and beta:
rewarding = alpha delta humidity-beta delta energy consumption
By this rewarding function, the intelligent agent will be motivated by rewards to maximize the rewards value, i.e. reduce humidity and reduce energy consumption. If the control is successful in reducing humidity and reducing energy consumption, it will get a positive prize value, which will encourage it to continue to take similar actions in similar circumstances. Conversely, if the controlled operation results in an increase in humidity or energy consumption, the prize will be negative and the system will attempt to avoid these operations.
4. Reinforcement learning algorithm: in reinforcement learning, a value function (value function) is generally used to represent the value of each state, which can be calculated by a Bellman Equation (Bellman evaluation). Specifically, a Q-learning algorithm may be used.
The bellman equation is an important equation in reinforcement learning and describes the relationship between value functions. For the state value function V(s) and the action value function Q (s, a), the bellman equation can be expressed as:
bellman equation for state value function:
V(s) = Σ [P(s' | s, a) * (R(s, a, s') + γ * V(s'))]
bellman equation for action value function:
Q(s, a) = Σ [P(s' | s, a) * (R(s, a, s') + γ * max(Q(s',a'))]
where P (s '|s, a) represents the probability of transitioning to state s' after action a is taken in state s, R (s, a, s ') represents the reward that transitions to state s' and is obtained after action a is taken in state s, and γ is a discount factor for balancing the importance of current rewards and future rewards.
Q-learning is a value-iteration-based reinforcement learning algorithm for learning an action value function Q (s, a). The algorithm comprises the following steps:
a. initializing Q (s, a) to an arbitrary value, typically zero.
b. At each time step t, the agent observes the current state s (t), and selects action a (t) according to a policy (e.g., epsilon-greedy policy).
c. Action a (t) is performed, observing the prize r (t) and the new state s (t+1).
d. Update Q value using bellman equation:
q (s (t), a (t))=q (s (t), a (t)) +α [ r (t) +γ ] max (Q (s (t+1), a')) -Q (s (t), a (t)) ] wherein α is the learning rate, controlling the update step size.
e. Repeating steps b-d until a stopping condition is met, such as reaching a maximum number of training steps or the Q value is stabilized.
The dehumidification method of the invention has the same beneficial effects as the dehumidification device, and is not repeated here.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims (10)

1. An intelligent dehumidifying device of a wind power intelligent ring main unit is used for dehumidifying a cabinet body (1) provided with electric elements; a first air port (101) and a second air port (102) are respectively formed in the top and the side wall of the cabinet body (1); the device is characterized in that a one-way air outlet component and a one-way air inlet component are respectively arranged in the first air port (101) and the second air port (102); intelligent dehumidification device includes:
The dehumidifying frame (3) is arranged at the top of the inner cavity of the cabinet body (1), the top of the dehumidifying frame is communicated with the first air port (101), and the bottom of the dehumidifying frame is provided with an air hole (301);
a heat storage box (8) installed in the cabinet body (1); the heat storage box (8) is filled with phase change materials;
a fan (18) installed in the dehumidifying frame (3), wherein one side of the fan is opposite to the first air inlet (101);
a dehumidifying barrel (5) horizontally arranged between the fan (18) and the bottom of the dehumidifying frame (3); a plurality of through holes are circumferentially formed in the middle of the dehumidifying barrel (5); an expansion block (11) is arranged in the dehumidifying barrel (5); a moisture absorption cotton pad (10) is arranged between the expansion block (11) and the inner wall of the dehumidifying barrel (5);
one end of the drain pipe (4) is positioned outside the cabinet body (1), and the other end of the drain pipe extends into the dehumidifying barrel (5);
an air delivery pipe (7) which is arranged in the heat storage box (8) in a penetrating manner; one end of the air conveying pipe (7) extends into the dehumidifying frame (3) and the air outlet points to the dehumidifying barrel (5), and the other end of the air conveying pipe is positioned in the cabinet body (1).
2. The intelligent dehumidifying apparatus of a wind power intelligent ring main unit as claimed in claim 1, further comprising:
a water flow detector provided in the drain pipe (4) for detecting a water flow rate discharged from the drain pipe (4);
A vibrator (15) mounted within the heat storage tank (8); and
and the controller is used for controlling the vibrator (15) to vibrate when the water flow detected by the water flow monitor exceeds a preset flow.
3. The intelligent dehumidifying device of the wind power intelligent ring main unit according to claim 2, wherein one end of the water draining pipe (4) positioned in the dehumidifying frame (3) is connected with a water receiving box; the water receiving box is used for collecting water flow falling from the through hole.
4. The intelligent dehumidifying device for the wind power intelligent ring main unit according to claim 2, wherein the barrel diameter of the dehumidifying barrel (5) is continuously reduced from the middle part to the two sides.
5. The intelligent dehumidifying device for the wind power intelligent ring main unit according to claim 4, wherein two ends of the dehumidifying barrel (5) are rotatably arranged in the dehumidifying frame (3) through rotating shafts, and the peripheral direction of the outer side wall of the dehumidifying barrel (5) is provided with overturning sheets (17); the central line of the dehumidifying barrel (5) and the central line of the fan blade of the fan (18) are not in the same plane.
6. The intelligent dehumidifying apparatus of a wind power intelligent ring main unit as claimed in claim 2, further comprising:
the humidity detector is electrically connected with the controller and is used for detecting the humidity in the cabinet body (1);
The controller is further configured to:
when the humidity detector detects that the humidity in the cabinet body (1) is between the preset humidity I and the preset humidity II, the fan (18) is controlled to rotate positively, so that the unidirectional air outlet component and the unidirectional air inlet component are respectively in an air outlet state and an air inlet state;
when the humidity detector detects that the humidity in the cabinet body (1) is greater than the preset humidity II or the humidity increasing value in the cabinet body (1) exceeds the preset change value in a preset unit time, the fan (18) is controlled to rotate reversely, so that the unidirectional air outlet assembly and the unidirectional air inlet assembly are both in a closed state.
7. The intelligent dehumidifying device for the wind power intelligent ring main unit according to claim 2, further comprising an air pipe assembly (6); the air duct assembly (6) comprises:
at least one group of transverse pipes which are installed on the inner wall of the cabinet body (1) in a circumferential direction;
at least one group of vertical pipes corresponding to the transverse pipes, one ends of the vertical pipes are communicated with the transverse pipes, and the other ends of the vertical pipes extend to the top of the inner cavity of the dehumidifying frame (3);
the transverse pipe is provided with at least one air inlet (16) on each side wall direction of the cabinet body (1); the air inlet (16) is provided with an air inlet valve; a humidity detector is arranged at one side of the air inlet (16); the air inlet valve and the humidity detector are electrically connected with the controller;
The controller is also used for controlling the opening of the air inlet valve and controlling the reversing of the fan (18) when the humidity detected by any one humidity detector is greater than the preset humidity II, so that the unidirectional air outlet assembly and the unidirectional air inlet assembly are both in a closed state.
8. The intelligent dehumidifying apparatus of a wind power intelligent ring main unit as claimed in claim 1, wherein the unidirectional wind outlet assembly comprises:
a hinge plate (13) hinged in the first tuyere (101); and
a stopper (14) installed in the first tuyere (101);
when the fan (18) is reversed, the hinged plate (13) is attached to the limiting block (14) to block the first air port (101).
9. The intelligent dehumidifying device for the wind power intelligent ring main unit as claimed in claim 8, wherein the second air port (102) is provided with a dust screen and a water absorption layer.
10. A dehumidification control method based on the intelligent dehumidification device of the wind power intelligent ring main unit according to any one of claims 1 to 9, characterized in that humidity, temperature and wind speed information are collected through sensors and sent to an intelligent controller, the following algorithm steps are executed in the controller, and dehumidification efficiency is continuously improved according to different environmental conditions and seasonal changes, and the method specifically comprises the following steps:
Step 1, defining state representation of a system: including the current environmental conditions: humidity, temperature, wind speed, and device status: a state of a fan, a heat storage material, and a moisture absorption cotton pad (10);
the state representation defines the environment and device state of the system at any given point in time, including the following elements:
humidity H: humidity levels in the current environment, typically expressed in percent;
temperature T: the temperature of the current environment is typically expressed in degrees celsius or degrees fahrenheit;
wind speed W: the current wind speed can influence humidity distribution and dehumidification efficiency;
fan state FS: the current state of the fan, including forward rotation, reverse rotation or shut down, can affect air flow and dehumidification efficiency;
state of heat storage material (Thermal Storage Material Status): the state of the heat storage material, including the heating level, affects the air heating and drying efficiency;
absorbent cotton pad state (Moisture Absorption Pad Status): the state of the absorbent cotton pad, indicating whether replacement or maintenance is required, the state of the absorbent cotton pad affecting humidity reduction efficiency;
expansion block state (Expansion Block Status): the state of the expansion block, which indicates whether replacement or maintenance is needed, affects the extrusion and drainage efficiency of humidity;
The state variables will be used as inputs for intelligent control to select the best operation at each time step to optimize system performance, by observing the current humidity and temperature, determining if the fan and heat storage materials and their operating levels need to be activated; the system may also monitor the status of the absorbent pad and the expansion block to determine if maintenance operations are needed;
step 2, action space: defining actions that the system can take that will affect the environment and the state of the device, including controlling the forward or reverse rotation of the fan, adjusting the heating level of the heat storage material, adjusting the fan speed;
fan control: the fan is one of the core components of the dehumidification device, and the actions include the following options:
forward rotation: activating a fan to generate an air flow in the dehumidifying frame, thereby facilitating the dehumidification and drying of the absorbent cotton pad and the expansion block;
reversing: reversing the fan to change the direction of the air flow, helping to treat humidity evenly;
closing: turning off the fan to stop the air flow;
heating the heat storage material: the heat storage material may release the stored heat by heating, thereby improving dehumidification efficiency, the actions including the following options:
adjusting the heating level: increasing or decreasing the heating level of the heat storage material to control the amount of heat released;
Fan speed adjustment: the speed of the fan may be adjusted to control the air flow, the actions including the following options:
increasing the fan speed: increasing the rotational speed of the fan to increase the air flow;
reducing fan speed: reducing the rotation speed of the fan to reduce the air flow;
other operations: other operations may also be defined, depending on the specific design of the system, including maintenance or replacement operations of the absorbent pad and the expansion block (11), and supplementary operations of the heat storage material;
these operations will be selected at each time step by the intelligent agent and sent as output into the system to be performed;
step 3, setting a reward function (reward function) which can be defined according to humidity and energy consumption factors, and is generally expected to maximize rewards, namely reduce humidity and reduce energy consumption, according to the performance of the system to evaluate each action; the bonus function is designed as follows:
reward Function (reorder Function) =α Δhumidity- β Δenergy consumption
Wherein Δhumidity represents a decrease in humidity after an action is performed, and Δenergy consumption represents a decrease in energy consumption after an action is performed; alpha and beta are weight coefficients for balancing the importance of humidity reduction and energy consumption; next, a detailed description will be given of how to calculate the Δhumidity and the Δenergy consumption:
3.1. Delta humidity:
delta humidity can be expressed as the change in humidity between the current time step t and the previous time step t-1, and the specific calculation may include:
delta humidity = humidity (t-1) -humidity (t)
Here, the humidity (t-1) is the humidity of the previous time step, the humidity (t) is the humidity of the current time step, and Δhumidity may be used to indicate the degree to which the intelligent agent reduces the humidity by performing an operation;
3.2. delta energy consumption:
delta energy consumption represents the reduction in energy consumption after an action is performed, which can be estimated by:
delta energy consumption = energy consumption (t-1) -energy consumption (t)
Here, the energy consumption (t-1) is the energy consumption of the previous time step, and the energy consumption (t) is the energy consumption of the current time step; delta energy consumption is used to indicate the extent to which the intelligent agent reduces energy consumption by performing an operation;
finally, substituting delta humidity and delta energy consumption into the reward function, and calculating a reward value according to the weight coefficients alpha and beta:
rewarding = alpha delta humidity-beta delta energy consumption
By this bonus function, the bonus value is maximized, i.e. the humidity is reduced and the energy consumption is reduced; if the control is successful in reducing humidity and reducing energy consumption, it will get a positive prize value, which will encourage it to continue to take similar actions in similar circumstances; conversely, if the controlled operation results in an increase in humidity or energy consumption, the prize will be negative and the system will attempt to avoid these operations;
Step 4. In reinforcement learning, the value of each state is typically represented using a value function (value function), calculated by Bellman evaluation:
bellman evaluation is an important Equation in reinforcement learning that describes the relationship between value functions, and for a state value function V(s) and an action value function Q (s, a), bellman evaluation can be expressed as:
bellman evaluation of the state value function:
V(s) = Σ [P(s' | s, a) * (R(s, a, s') + γ * V(s'))]
bellman evaluation of the action value function:
Q(s, a) = Σ [P(s' | s, a) * (R(s, a, s') + γ * max(Q(s', a'))]
wherein P (s '|s, a) represents the probability of transitioning to state s' after taking action a in state s, R (s, a, s ') represents the reward that transitions to state s' and is obtained after taking action a in state s, and γ is a discount factor for balancing the importance of current rewards and future rewards;
learning the action value function Q (s, a) by using a Q-learning algorithm, the algorithm comprising the steps of:
a. initializing Q (s, a) to an arbitrary value, typically zero;
b. at each time step t, the agent observes the current state s (t), and selects action a (t) according to a certain policy (e.g., epsilon-greedy policy);
c. performing action a (t), observing prize r (t) and new state s (t+1);
d. q value is updated using Bellman evaluation:
Q (s (t), a (t))=q (s (t), a (t)) +α [ r (t) +γ ] max (Q (s (t+1), a')) -Q (s (t), a (t)) ] wherein α is the learning rate, controlling the update step size;
e. repeating steps b-d until a stopping condition is met, for example, a maximum number of training steps or a Q value is reached to be stable;
step 5, controlling the fan (18) to rotate forwards or reversely, wherein the unidirectional air outlet component and the unidirectional air inlet component are respectively in an air outlet state and an air inlet state during forward rotation, external air enters the cabinet body (1) through the second air port (102), then enters the dehumidifying frame (3) through the air hole (301), and finally is discharged from the first air port (101); when the cabinet is in reverse rotation, the unidirectional air outlet component and the unidirectional air inlet component are in a closed state, air in the cabinet body (1) enters from the bottom end of the air conveying pipe (7) and is discharged into the dehumidification frame (3) from the upper end, and finally enters the cabinet body (1) again through the air hole (301);
step 6, absorbing moisture in the air passing through the dehumidifying frame (3) by a moisture absorption cotton pad (10) in the dehumidifying barrel (5);
step 7, the expansion block (11) expands after contacting with the moisture in the moisture absorption cotton pad (10), the moisture absorption cotton pad (10) is extruded, and the water produced by extrusion is discharged from the drain pipe (4);
and 8, heating air in the air conveying pipe (7) by heat release of heat storage materials in the heat storage box (8), blowing heated hot air into the dehumidifying frame (3), and drying the moisture absorption cotton pad (10) and the expansion block (11).
CN202311307210.0A 2023-10-10 2023-10-10 Intelligent dehumidifying device of wind power intelligent ring main unit and dehumidifying control method thereof Active CN117039648B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106786057A (en) * 2017-01-04 2017-05-31 杭州金知科技有限公司 A kind of power distribution cabinet, the temperature control system of power distribution cabinet and method
CN108151180A (en) * 2018-01-23 2018-06-12 南通中远克莱芬船舶工程有限公司 A kind of Combined dehumidifier
CN109616903A (en) * 2019-01-22 2019-04-12 杭州力谱科技有限公司 A kind of forced heat radiation formula power distribution cabinet
CN111313283A (en) * 2020-03-04 2020-06-19 安徽明诚电力设备安装有限公司 Ring main unit capable of dehumidifying

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106786057A (en) * 2017-01-04 2017-05-31 杭州金知科技有限公司 A kind of power distribution cabinet, the temperature control system of power distribution cabinet and method
CN108151180A (en) * 2018-01-23 2018-06-12 南通中远克莱芬船舶工程有限公司 A kind of Combined dehumidifier
CN109616903A (en) * 2019-01-22 2019-04-12 杭州力谱科技有限公司 A kind of forced heat radiation formula power distribution cabinet
CN111313283A (en) * 2020-03-04 2020-06-19 安徽明诚电力设备安装有限公司 Ring main unit capable of dehumidifying

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