CN116260152A - A ventilation control system and control method for an SVG room in a wind farm - Google Patents

Abstract

The invention relates to the technical field of ventilation control systems, in particular to a ventilation control system and a ventilation control method for a SVG room of a wind farm, which solve the problems that in the prior art, moist air and rainwater directly enter the indoor space, so that the indoor radiating air quality is reduced, indoor facilities are damaged, the maintenance time of equipment is shortened, the cost of maintenance is increased, the operation life of the equipment is reduced, and a large amount of sundries and water drops are left on the equipment, so that tripping of the equipment frequently occurs. A ventilation control system and a ventilation control method for SVG (static var generator) chambers of a wind power plant are provided, wherein an indoor temperature sensor and a humidity sensor send values to a micro-processing unit, and the SVG air cooling circulation is changed from full-external circulation to half-internal-half-external circulation by combining sites, so that the negative pressure of the SVG chambers is ensured to be processed, and meanwhile, the indoor temperature rise of the SVG chambers is ensured not to be too high.

Description

A wind farm SVG room ventilation control system and control method

technical field

The invention relates to the technical field of ventilation control systems, in particular to a ventilation control system and a control method for an SVG room of a wind farm.

Background technique

With the update and iteration of technology, the current reactive power compensation devices in the power industry are changing from capacitors and static var compensation devices (SVC) to static var generators (SVG). The current mainstream SVG is divided into two categories, one One class is air-cooled SVG; the other class is water-cooled SVG. The working principle of air-cooled SVG heat dissipation is that the equipment generates negative pressure in the rear cavity of the equipment through the rotation of the cooling fan, and the front cavity of the indoor or container is at normal atmospheric pressure, so that the natural gas in the container or indoor will pass through The aluminum heat sink takes the heat generated by the IGBT away through the natural air flowing through the heat sink, so as to ensure that the heat sink remains within the reasonable working temperature of the IGBT. From the above principle, since the forced air cooling equipment requires a lot of natural When the air enters the room, when the rainy season comes, humid air and rainwater will directly enter the room, resulting in a decrease in the quality of the cooling air indoors, and moisture damage to indoor facilities, which will shorten the maintenance time of the equipment and increase the cost of maintenance , but also reduces the operating life of the equipment. More importantly, if the time is too long, water droplets will remain on the equipment, causing the equipment to trip frequently. Therefore, we propose a wind farm SVG room ventilation control system and control method to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide a wind farm SVG room ventilation control system and control method, to solve the problem that the humid air and rainwater in the prior art will directly enter the room, resulting in a decrease in the quality of the indoor cooling air and damaging the indoor facilities. It will shorten the maintenance time of the equipment, increase the cost of maintenance, and also reduce the operating life of the equipment, and a large amount of water droplets will remain on the equipment, causing frequent tripping of the equipment.

In order to achieve the above object, the present invention adopts the following technical solutions:

A ventilation control method for an SVG room in a wind farm. The indoor temperature sensor and humidity sensor send values to a micro-processing unit, and the micro-processing unit converts digital information into electrical signals and sends them to a controller. The motor drive is turned off or on, and the indoor and outdoor temperature is kept at 5°C-35°C, and the humidity is not greater than 80%;

When the indoor temperature is higher than 35°C, the motor drives the baffle to open;

When the indoor temperature is lower than 5°C, the motor control baffle is closed;

When the indoor temperature is less than 35°C and the humidity is greater than 80%, the motor control baffle is closed.

A wind farm SVG room ventilation control system, characterized in that it includes an information collection module, a circuit control module, a micro-processing unit, a cooling unit and a baffle;

The information collection module is used to collect temperature information and humidity information, including temperature sensors and humidity sensors;

The micro-processing unit is used to convert the digital information of the information acquisition module into a corresponding electrical signal output;

The heat dissipation unit is used to assist the SVG indoor heat dissipation;

The circuit control module includes a controller, a motor, a forward rotation circuit, a micro switch of the forward rotation circuit, a reverse circuit, and a micro switch of the reverse circuit; the micro-processing unit sends the corresponding electrical signal to the controller, and the controller controls the motor Turn on the forward rotation circuit or the reverse rotation circuit;

The baffle is used to control the movement driven by the motor.

Preferably, when the motor is connected to the forward rotation circuit, the motor control baffle rotates until the micro switch of the forward rotation circuit is triggered, and the forward rotation circuit is closed.

Preferably, when the motor is connected to the reverse circuit, the motor controls the baffle to rotate until the micro switch of the reverse circuit is triggered, and the reverse circuit is closed.

Preferably, when the indoor temperature of the SVG is greater than 35° C., the micro-processing unit sends a driving signal to the circuit control module, and at the same time the cooling unit is controlled to be turned on.

Preferably, a louver is also included, the louver is installed at the indoor and outdoor communication port of the SVG, and the top and bottom of the baffle are respectively equipped with rotating shafts to be movably installed with the louver.

Preferably, the motor is installed on the side of the shutter, and two gears are mounted on the shutter, one of which is coaxially installed with the output shaft of the motor, and the other gear is coaxially connected with the rotating shaft of the baffle.

Preferably, the microswitches of the forward rotation circuit and the reverse rotation microswitches are respectively installed inside the shutter.

Preferably, the rotation angle of the baffle is in the range of 0-90°.

Preferably, a control panel is also included, a display screen is installed on the control panel, and the control panel is electrically connected to the micro-processing unit.

The present invention at least has the following beneficial effects:

By changing the SVG air-cooling cycle from full-outer cycle to half-inner-half-outer cycle in combination with the actual situation on site, the temperature rise in the SVG room will not be too high while ensuring the negative pressure in the SVG room. At the same time, temperature and humidity controllers are installed. The degree of opening and closing of the internal and external circulation system is controlled by the temperature and humidity controller to ensure that the external circulation is the main and the internal circulation is the supplementary in summer when the SVG is running under high load to reduce the indoor temperature. In winter, the internal circulation is the main and the external circulation is the supplementary to maintain the indoor temperature , to reduce indoor humidity, the invention solves the problem that the SVG air-cooled external circulation will cause long-term negative pressure in the SVG room, causing moisture and rain to enter, and the current internal circulation after technical improvement will make the SVG temperature too high during long-term high-load operation of the SVG question.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is the structural representation of electric shutter of the present invention;

Fig. 2 is a schematic diagram of the ventilation system control logic of the present invention.

In the figure: 1, shutter; 2, motor; 3, baffle.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Embodiment one

Referring to Fig. 1 and Fig. 2, a ventilation control method for an SVG room in a wind farm, the indoor temperature sensor and humidity sensor send values to the micro-processing unit, the micro-processing unit converts the digital information into electrical signals and sends them to the controller, and the controller controls the indoor The baffle 3 at the external connection is closed or opened by the motor 2, keeping the indoor and outdoor temperature at 5°C-35°C, and the humidity not greater than 80%;

When the indoor temperature is greater than 35°C, the motor 2 drives the baffle 3 to open;

When the indoor temperature is lower than 5°C, the motor 2 controls the baffle 3 to close;

When the indoor temperature is less than 35°C and the humidity is greater than 80%, the motor 2 controls the damper 3 to close.

Embodiment two

Referring to Fig. 1 and Fig. 2, a wind farm SVG room ventilation control system includes an information collection module, a circuit control module, a micro-processing unit, a cooling unit and a baffle 3;

The information collection module is used to collect temperature information and humidity information, including temperature sensors and humidity sensors;

The micro-processing unit is used to convert the digital information of the information acquisition module into a corresponding electrical signal output;

The heat dissipation unit is used to assist the SVG indoor heat dissipation;

The circuit control module includes a controller, a motor 2, a forward rotation circuit, a micro switch of the forward rotation circuit, a reverse circuit, and a micro switch of the reverse circuit; the microprocessing unit sends corresponding electrical signals to the controller, and the controller controls The motor 2 is connected to the forward rotation circuit or the reverse rotation circuit, when the micro switch of the forward rotation circuit is triggered, the forward rotation circuit is closed, and when the micro switch of the reverse rotation circuit is triggered, the reverse rotation circuit is closed;

The baffle 3 is used to be driven by the motor 2 to control the movement, so as to trigger the microswitch of the corresponding forward rotation circuit or the microswitch of the reverse rotation circuit;

In this embodiment, by optimizing the SVG ventilation system of the wind farm, controlling the indoor and outdoor communication of the SVG according to the temperature and humidity in the SVG room, and using heat exchange, on the one hand, it can ensure good heat dissipation in the SVG room, and on the other hand, the outdoor air enters the Indoors, to ensure the negative pressure in the room. According to the temperature and humidity changes of the SVG indoors and outdoors, it is possible to realize that the indoor is the main and the outdoor is the auxiliary, or the indoor is the auxiliary and the outdoor is the main. The two modes can be switched flexibly to ensure that the temperature of the equipment will not be too high. high and low.

Embodiment three

Referring to Fig. 1 and Fig. 2, a wind farm SVG room ventilation control system includes an information collection module, a circuit control module, a micro-processing unit, a cooling unit and a baffle 3;

The information collection module is used to collect temperature information and humidity information, including temperature sensors and humidity sensors;

The micro-processing unit is used to convert the digital information of the information acquisition module into a corresponding electrical signal output;

The heat dissipation unit is used to assist the SVG indoor heat dissipation;

The circuit control module includes a controller, a motor 2, a forward rotation circuit, a micro switch of the forward rotation circuit, a reverse circuit, and a micro switch of the reverse circuit; the microprocessing unit sends corresponding electrical signals to the controller, and the controller controls The motor 2 is connected to the forward rotation circuit or the reverse rotation circuit, when the micro switch of the forward rotation circuit is triggered, the forward rotation circuit is closed, and when the micro switch of the reverse rotation circuit is triggered, the reverse rotation circuit is closed;

The baffle 3 is used to be driven by the motor 2 to control the movement, so as to trigger the microswitch of the corresponding forward rotation circuit or the microswitch of the reverse rotation circuit;

When the indoor temperature of the SVG is greater than 35°C, the micro-processing unit sends a driving signal to the circuit control module, and at the same time the cooling unit is controlled to open;

In this embodiment, by setting the heat dissipation unit, when the temperature in the SVG room is too high, it can assist heat dissipation, so as to ensure timely heat dissipation of the equipment in the SVG room and reduce the frequency of failure of the equipment in the SVG room.

Embodiment four

Referring to Fig. 1 and Fig. 2, a wind farm SVG room ventilation control system includes an information collection module, a circuit control module, a micro-processing unit, a cooling unit and a baffle 3;

The information collection module is used to collect temperature information and humidity information, including temperature sensors and humidity sensors;

The micro-processing unit is used to convert the digital information of the information acquisition module into a corresponding electrical signal output;

The heat dissipation unit is used to assist the SVG indoor heat dissipation;

The circuit control module includes a controller, a motor 2, a forward rotation circuit, a micro switch of the forward rotation circuit, a reverse circuit, and a micro switch of the reverse circuit; the microprocessing unit sends corresponding electrical signals to the controller, and the controller controls The motor 2 is connected to the forward rotation circuit or the reverse rotation circuit, when the micro switch of the forward rotation circuit is triggered, the forward rotation circuit is closed, and when the micro switch of the reverse rotation circuit is triggered, the reverse rotation circuit is closed;

The baffle 3 is used to be driven by the motor 2 to control the movement, so as to trigger the microswitch of the corresponding forward rotation circuit or the microswitch of the reverse rotation circuit;

When the indoor temperature of the SVG is greater than 35°C, the micro-processing unit sends a driving signal to the circuit control module, and at the same time the cooling unit is controlled to open;

It also includes the shutter 1, which is installed at the SVG indoor and outdoor communication port, the top and bottom of the baffle 3 are respectively equipped with rotating shafts, so as to be movable with the shutter, the motor 2 is installed on the side of the shutter 1, and there are two Gears for transmission, one of the gears is installed coaxially with the output shaft of the motor 2, the other gear is connected with the rotating shaft of the baffle plate 3 coaxially, the microswitches of the forward rotation circuit and the reverse microswitches are respectively installed inside of shutter 1;

In one of the embodiments, the rotation angle of the baffle 3 ranges from 0° to 90°;

In this embodiment, when the micro-processing control unit controls the motor 2 to connect to the forward rotation circuit, the motor 2 controls the gear to rotate forward, and the transmission of the gear meshes, thereby realizing the gear rotation of the baffle 3, and the trigger is triggered after the baffle 3 rotates to a certain angle. Forward rotation of the micro switch, the motor 2 stops driving, and the baffle 3 stops rotating; when the micro-processing control unit controls the motor 2 to connect to the reverse circuit, the motor 2 controls the reverse rotation of the gear, and the gear transmission meshes, thereby realizing the baffle 3 When the gear rotates, the baffle 3 rotates to a certain angle to trigger the reverse microswitch, the motor 2 stops driving, and the baffle 3 stops rotating, thereby realizing the rotation control of the baffle 3.

Embodiment five

Referring to Fig. 1 and Fig. 2, a wind farm SVG room ventilation control system includes an information collection module, a circuit control module, a micro-processing unit, a cooling unit and a baffle 3;

The information collection module is used to collect temperature information and humidity information, including temperature sensors and humidity sensors;

The micro-processing unit is used to convert the digital information of the information acquisition module into a corresponding electrical signal output;

The heat dissipation unit is used to assist the SVG indoor heat dissipation;

The circuit control module includes a controller, a motor 2, a forward rotation circuit, a micro switch of the forward rotation circuit, a reverse circuit, and a micro switch of the reverse circuit; the microprocessing unit sends corresponding electrical signals to the controller, and the controller controls The motor 2 is connected to the forward rotation circuit or the reverse rotation circuit, when the micro switch of the forward rotation circuit is triggered, the forward rotation circuit is closed, and when the micro switch of the reverse rotation circuit is triggered, the reverse rotation circuit is closed;

The baffle 3 is used to be driven by the motor 2 to control the movement, so as to trigger the microswitch of the corresponding forward rotation circuit or the microswitch of the reverse rotation circuit;

When the indoor temperature of the SVG is greater than 35°C, the micro-processing unit sends a driving signal to the circuit control module, and at the same time the cooling unit is controlled to open;

It also includes the shutter 1, which is installed at the SVG indoor and outdoor communication port, the top and bottom of the baffle 3 are respectively equipped with rotating shafts, so as to be movable with the shutter, the motor 2 is installed on the side of the shutter 1, and there are two Gears for transmission, one of the gears is installed coaxially with the output shaft of the motor 2, the other gear is connected with the rotating shaft of the baffle plate 3 coaxially, the microswitches of the forward rotation circuit and the reverse microswitches are respectively installed inside of shutter 1;

In one of the embodiments, the rotation angle of the baffle 3 ranges from 0° to 90°;

It also includes a control panel, a display screen is installed on the control panel, and the control panel is electrically connected to the micro-processing unit;

In this embodiment, the setting of the control panel facilitates the display of the driving control of the baffle 3 and the change of the temperature and humidity in the SVG room, and can assist manual intervention when necessary.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description are only the principles of the present invention. Variations and improvements, which fall within the scope of the claimed invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A ventilation control method for a SVG room of a wind power plant is characterized in that,

the indoor temperature sensor and the humidity sensor send the numerical value to the micro-processing unit, the micro-processing unit converts the digital information into an electric signal and sends the electric signal to the controller, and the controller controls the baffle (3) at the indoor and outdoor communication positions to be closed or opened under the driving of the motor (2) to keep the indoor and outdoor temperature at 5-35 ℃ and the humidity at no more than 80%;

when the indoor temperature is higher than 35 ℃, the motor (2) drives the baffle (3) to open;

when the indoor temperature is less than 5 ℃, the motor (2) controls the baffle (3) to be closed;

when the indoor temperature is less than 35 ℃ and the humidity is greater than 80%, the motor (2) controls the baffle (3) to be closed.

2. A wind farm SVG room ventilation control system, characterized in that it is adapted to perform a wind farm SVG room ventilation control method according to claim 1, comprising an information acquisition module, a circuit control module, a microprocessor unit, a heat dissipation unit and a baffle (3);

the information acquisition module is used for acquiring temperature information and humidity information, and comprises a temperature sensor and a humidity sensor;

the micro-processing unit is used for converting the digital information of the information acquisition module into corresponding electric signals and outputting the corresponding electric signals;

the heat dissipation unit is used for assisting SVG indoor heat dissipation;

the circuit control module comprises a controller, a motor (2), a forward rotation circuit, a micro switch of the forward rotation circuit, a reverse rotation circuit and a micro switch of the reverse rotation circuit; the micro-processing unit sends corresponding electric signals to the controller, and the controller controls the motor (2) to be connected with the forward circuit or the reverse circuit;

and the baffle plate (3) is used for being driven and controlled by the motor (2) to move.

3. A wind farm SVG room ventilation control system according to claim 2 wherein the motor control damper is turned to close the forward circuit when the micro-switch is triggered to the forward circuit when the motor is on the forward circuit.

4. A wind farm SVG room ventilation control system according to claim 2, wherein the reversing circuit is closed when the motor is turned on and the motor control flap is turned to the micro-switch of the reversing circuit is triggered.

5. The ventilation control system of a wind farm SVG room of claim 2, wherein the micro-processing unit sends a driving signal to the circuit control module when the SVG room temperature is greater than 35 ℃, while the heat dissipation unit is controlled to be turned on.

6. A ventilation control system for a wind farm SVG room according to claim 2, further comprising a louver (1), wherein the louver (1) is installed at the indoor and outdoor communication ports of the SVG room, and the top and bottom of the baffle (3) are respectively installed with rotation shafts so as to be movably installed with the louver.

7. The ventilation control system of the SVG room of the wind farm according to claim 2, wherein the motor (2) is arranged at the side edge of the shutter (1), two gears matched with transmission are arranged on the shutter (1), one gear is arranged coaxially with the output shaft of the motor (2), and the other gear is connected coaxially with the rotating shaft of the baffle (3).

8. A ventilation control system for a SVG room of a wind farm according to claim 2, characterized in that the micro-switch and the counter-rotation micro-switch of the forward rotation circuit are respectively installed inside the louver (1).

9. A wind farm SVG room ventilation control system according to claim 2, characterized in that the angle of rotation of the baffles (3) is in the range of 0-90 °.

10. The ventilation control system of the SVG room of the wind farm according to claim 2, further comprising a control panel, wherein the control panel is provided with a display screen, and the control panel is electrically connected with the micro-processing unit.

Images