Electrical equipment room microenvironment management and control system and control method thereof

By installing the management and control unit of the intelligent management cabinet in the electrical equipment room, the real-time monitoring and control of various systems is solved, and the problem of lack of a unified automatic management and control system in the existing technology is solved, and efficient and safe equipment management and environmental control are achieved.

CN120161731APending Publication Date: 2025-06-17BOMCO ELECTRIC EQUIP +2
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Patent Information

Application Number
CN202311734572.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-12-15
Publication Date
2025-06-17

AI Technical Summary

Technical Problem

The lack of a unified micro-environment automatic control system among existing electrical equipments, resulting in inconvenient management and high operation and maintenance costs. Especially in the remote geographical location of the oil and gas industry, the environment is harsh and the equipment is scattered, and a complete automatic control system is needed.

Method used

A micro-environment control system for electrical equipment is designed, including a control unit for installing a smart pipe cabinet in the equipment room. The unit consists of a programmable logic controller module, a communication module, a power module and a human-machine interface, connected to the backend system to monitor and control HVAC systems, lighting systems, fire protection systems, security systems and electrical parameters in real time.

Benefits of technology

It realizes automated management of the micro-environment between electrical equipment, improves management efficiency and safety, reduces operation and maintenance costs, and ensures the safe operation of equipment and the stability of the environment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

A microenvironment management and control system for an electrical equipment room disclosed by the present invention comprises a management and control unit independently installed in an intelligent management cabinet independently arranged in the equipment room, and the management and control unit comprises a programmable logic controller module, and a communication module, a power supply module and a liquid crystal display screen which are connected with the programmable logic controller module. A heating and ventilation system, a lighting system, a fire fighting system and a security and protection system are arranged in the electrical equipment room, sensors and automatic controllers are installed on the inner wall of the electrical equipment room, the sensors are in signal connection with a programmable logic controller module, and the programmable logic controller module is connected with the automatic controllers. According to the electrical equipment room microenvironment management and control system control method, each sensor monitors each system in the equipment room in real time and transmits data to the management and control unit, and each parameter in the electrical equipment room is controlled to be within a standard range, so that the labor efficiency and the management level can be improved, automatic management is realized, the management is convenient, and the operation and maintenance cost is saved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of substation automatic control and management, and relates to a microenvironment control system for electrical equipment rooms, and also relates to a control method for the microenvironment control system for the electrical equipment rooms Background Art

[0002] At present, most electrical equipment rooms such as power skid-mounted houses and box substations do not have an environment control system, or the environment control system units are relatively scattered or single. The heating, ventilation and air conditioning (HVAC) system, lighting system, ventilation system, fire protection and security system exist independently and do not form a system with each other, and automation cannot be achieved

[0003] Most of the oil and gas industries are located in remote areas. The operation of skid-mounted or box-type electrical equipment rooms faces problems such as harsh environments, strong winds and sand, and large temperature differences. Coupled with a small number of power professional and technical personnel, high operation and maintenance costs, and inconvenient management, environmental automatic control is particularly important. In some electrical equipment rooms such as substations, electricity-for-oil, and electrical control rooms, power facilities are often relatively scattered and of various types. High-voltage equipment, low-voltage equipment, transformers, frequency converters, power supplies and other equipment are often integrated in an electrical equipment room, and a microenvironment automatic control system with perfect functions for the electrical equipment room is required to ensure the safe operation of the environment and equipment inside the skid Summary of the Invention

[0004] The purpose of the present invention is to provide a microenvironment control system for an electrical equipment room, which has the characteristics of high-efficiency and convenient management and low operation and maintenance costs

[0005] The technical solution adopted by the present invention is that a microenvironment control system for an electrical equipment room includes a control unit separately installed in a separately provided intelligent control cabinet in the equipment room. The control unit includes a programmable logic controller module, which is connected with a communication module, a power module and a human-machine interface. The control unit is connected to the background system. A heating, ventilation and air conditioning (HVAC) system, a lighting system, a fire protection system and a security system are arranged in the electrical equipment room. Temperature and humidity sensors for data collection of the HVAC system, smoke sensors for data collection of the fire protection system, infrared sensors for data collection of the lighting system, and cameras for data collection of the security system are installed on the inner walls of the electrical equipment room. A plurality of controllers for controlling the equipment of each system in the equipment room are also installed on the inner walls of the electrical equipment room. The electrical equipment is also connected with a multi-functional power digital display meter, a circuit breaker and a circuit breaker switch controller for electrical parameter collection. The multi-functional power digital display meter and each sensor are signal-connected to the programmable logic controller module, and the programmable logic controller module is respectively connected to each automatic controller and the circuit breaker switch controller for controlling the start and stop of each system in the electrical equipment room

[0006] The characteristics of the present invention also lie in that

[0007] The HVAC ventilation system includes an electric heater, an air conditioner, and a fan. The lighting system includes common lighting fixtures, emergency lighting fixtures, and escape indicator lights. The fire protection system includes fire extinguishers, audible and visual alarms, and air conditioner fan ventilation equipment. The security system includes cameras.

[0008] The automatic controller includes a temperature and humidity controller, a lighting system controller, and a fire protection system controller. Each controller is used to control the on / off of each device within its respective system.

[0009] The management and control unit exchanges data with each automatic controller through a TCP network or an RS485 network.

[0010] The programmable logic controller module has the capabilities of data acquisition and processing, data storage, logic control, and mathematical operations. It uses a polling communication method of one point to multiple points and uploads the collected data to the background system through a communication module.

[0011] The programmable logic controller module is a programmable logic PLC controller, and the power supply is a UPS power supply; the background system is a background SCADA monitoring system, and the human-machine interface uses a color liquid crystal display operation panel.

[0012] Another technical solution adopted by the present invention is a control method for the microenvironment management and control system of the electrical equipment room. The specific steps are as follows:

[0013] Step 1: Equipment self-check. After the microenvironment management and control system of the electrical equipment room is powered on, it performs a hardware self-check to detect whether the power supply, communication, I / O channels, and measurement signals are normal. If normal, the system operates normally; otherwise, an alarm is issued.

[0014] Step 2: Each sensor monitors the HVAC ventilation system, fire protection system, lighting system inside the skid, security system, and electrical parameters in the equipment room in real time and transmits the data to the management and control unit. The management and control unit transmits the data to the background system or receives instructions issued by the background system to control each parameter in the electrical equipment room within the standard range.

[0015] Another feature of the technical solution of the present invention is that

[0016] The specific operation of Step 2 is as follows:

[0017] The real-time monitoring and control of the HVAC ventilation system are specifically as follows:

[0018] The temperature and humidity sensor monitors the ambient temperature in the equipment room in real time and feeds it back to the temperature and humidity controller. The temperature and humidity controller transmits a signal to the management and control unit. When the temperature in the equipment room is below 0°C, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous opening of the air conditioner and the electric heater for heating up. When the temperature in the equipment room is between 0°C and 5°C, the management and control unit sends a signal to the temperature and humidity controller to control the closing of the air conditioner and the opening of the electric heater for heating up. At this time, only the electric heater operates alone. When the temperature in the equipment room is between 5°C and 30°C, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous closing of the electric heater and the air conditioner. At this time, the electric heater, the air conditioner, and the cooling fan are all in the off state. When the temperature in the equipment room is between 30°C and 35°C, the management and control unit sends a signal to the temperature and humidity controller to control the opening of only the cooling fan. The cooling fan operates alone, and the electric heater and the air conditioner are both off. When the temperature in the equipment room is higher than 35°C, the management and control unit sends a signal to the temperature and humidity controller to control the opening of the air conditioner. At this time, the air conditioner and the cooling fan operate simultaneously for cooling down.

[0019] The temperature and humidity sensor monitors the ambient humidity in the equipment room in real time and feeds it back to the management and control unit. When the humidity in the equipment room is below 65%, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous closing of the dehumidifying fan and the air conditioner. When the humidity in the equipment room is between 65% and 90%, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous opening of the electric heater and the dehumidifying fan. When the humidity in the equipment room is higher than 95%, the management and control unit sends a signal to the temperature and humidity controller to control the closing of the dehumidifying fan and the opening of the air conditioner for dehumidification. At this time, the air conditioner and the electric heater operate simultaneously.

[0020] The real-time monitoring and control of the fire protection system are as follows: The smoke sensor monitors the smoke concentration in the equipment room in real time. When the smoke concentration in the equipment room exceeds the set value, the smoke sensor sends a signal to the management and control unit. The management and control unit controls the lighting system controller to directly turn on the emergency lighting and the escape indicator lights, and at the same time triggers the fire protection system controller to turn on the audible and visual alarm for alarm, closes the air conditioner and the ventilation equipment of the fan, and activates the fire extinguisher.

[0021] The real-time monitoring and control of the lighting system are as follows: It is detected whether there are people in the skid house through the infrared sensor switch. If it is detected that there are people in the skid house, the management and control unit controls the opening of the common lighting lamps of the indoor lighting system. If it is detected that there are no people in the skid house, the management and control unit controls the automatic closing of the indoor lighting system.

[0022] The real-time monitoring and control of the security system inside the skid are as follows: It is monitored in real time through the camera whether there are unauthorized personnel entering. When there are unauthorized personnel entering the camera, the management and control unit records the traces of the personnel and sends a reminder alarm signal of personnel entry to the user background system.

[0023] The real-time monitoring and control of electrical parameters are specifically as follows: The multi-functional power digital display instrument monitors the electrical parameters of each device in the equipment room in real time. When a circuit fault occurs, the management and control unit sends an alarm signal to the background system and triggers the circuit breaker switch controller to control the circuit breaker to trip and cut off the main power supply. If the management personnel find an abnormal emergency situation in the equipment room through the background remote monitoring system, they can issue an instruction to cut off the main power supply through the background system, and trigger the circuit breaker switch controller through the management and control unit to cut off the main power supply circuit breaker.

[0024] The beneficial effects of the present invention are:

[0025] The microenvironment management and control system for electrical equipment rooms of the present invention monitors the HVAC ventilation system, lighting system, fire protection and security systems, electrical parameters, etc. in a communication manner, automatically adjusts the operating states of the equipment, controls the automatic start and stop of the operation of each device. At the same time, users can remotely monitor the operation data in real time, and it can also provide intuitive, scientific and rigorous data support for the maintenance personnel to carry out daily inspections, repairs, maintenance and other evaluation and deployment work, improve the manual efficiency and management level, realize automated management, and is convenient to manage while having low operation and maintenance costs. Brief Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the microenvironment management and control system for electrical equipment rooms of the present invention;

[0027] Figure 2 is a device self-check logic diagram of the microenvironment management and control system for electrical equipment rooms of the present invention;

[0028] Figure 3 is the temperature control logic of the microenvironment management and control system for electrical equipment rooms of the present invention;

[0029] Figure 4 is a humidity control logic diagram of the microenvironment management and control system for electrical equipment rooms of the present invention;

[0030] Figure 5 is the fire protection control logic of the microenvironment management and control system for electrical equipment rooms of the present invention;

[0031] Figure 6 is a security control logic diagram of the microenvironment management and control system for electrical equipment rooms of the present invention;

[0032] Figure 7 is a lighting control logic diagram of the microenvironment management and control system for electrical equipment rooms of the present invention;

[0033] Figure 8 is an electrical parameter control logic diagram of the microenvironment management and control system for electrical equipment rooms of the present invention. Detailed Embodiments

[0034] The present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0035] Example 1

[0036] The micro - environment control system for electrical equipment rooms of the present invention has a structure as Figure 1 shown, mainly including a control unit, a heating, ventilation and air - conditioning (HVAC) system, a lighting system, a fire protection and security system, and a UPS power supply. The control unit is separately installed in a smart control cabinet separately set in the equipment room. The control unit includes a programmable logic controller module, which is connected to a communication module, a UPS power supply module, and a human - machine interface. The control unit is connected to the user - background SCADA monitoring system,

[0037] The programmable logic controller module uses a programmable logic PLC controller, which has the capabilities of data acquisition and processing, data storage, logic control, and mathematical operations. It adopts a polling communication method of one - point - to - multi - point, and uploads the collected data to the background system through the communication module. The system is configured with a color liquid crystal display screen on one side as the human - machine interface for displaying the status and parameters of relevant equipment in the equipment room and on - site operations.

[0038] In the electrical equipment room, there are installed an HVAC system, a lighting system, a fire protection system, and a security system. The HVAC system includes an electric heater, an air conditioner, and a fan. The lighting system includes common lighting lamps, emergency lighting lamps, and escape indicator lights. The fire protection system includes fire extinguishers, audible and visual alarms, and air - conditioner fan ventilation equipment. The security system includes cameras.

[0039] On the walls of the electrical equipment room, there are installed temperature and humidity sensors for data acquisition of the HVAC system, smoke sensors for data acquisition of the fire protection system, infrared sensors for data acquisition of the lighting system, and cameras for data acquisition of the security system. The electrical equipment in the electrical equipment room is connected with multi - function power digital display meters, circuit breakers, and circuit breaker switch controllers for electrical parameter acquisition. Each sensor and multi - function power digital display meter is signal - connected to the programmable logic PLC controller module;

[0040] On the walls of the electrical equipment room, there are also installed multiple automatic controllers for controlling the equipment of each system in the equipment room respectively.

[0041] Example 2

[0042] Based on Example 1, the automatic controllers include a temperature and humidity controller, a lighting system controller, and a fire protection system controller. The temperature and humidity controller is used to control the start and stop of the electric heater, air conditioner, and fan. The lighting system controller is used to control the start and stop of common lighting lamps, emergency lighting lamps, and escape indicator lights. The fire protection system controller is used to control the start and stop of fire extinguishers, audible and visual alarms, and air - conditioner fan ventilation equipment.

[0043] Inside the skid, there is a temperature and humidity controller. The temperature and humidity controller collects and detects the internal temperature and humidity of the skid in real time, and can set alarm parameters such as low temperature, high temperature, and high humidity. When the upper limit or lower limit is exceeded, the control unit automatically starts the corresponding heating and dehumidifying device or air conditioner through the controller. At the same time, an alarm message is sent, and the signal is transmitted to the SCADA platform in the monitoring room through the network cabinet equipment. When the humidity in the skid reaches the alarm level, the control unit will turn on the electric heater to heat up, dehumidify, and automatically open the ventilation holes and start the ventilation fan for exhaust and ventilation. When the temperature in the skid is low, the temperature and humidity controller issues a low temperature alarm, and the control unit will automatically turn on the electric heater to heat up; when the temperature in the skid is extremely high, the temperature and humidity controller issues a high temperature alarm, and the control unit automatically opens the ventilation window, starts the ventilation fan, and turns on the air conditioner for refrigeration.

[0044] The circuit breaker switch controller is used to control the circuit breaker switch. The programmable logic PLC controller module supports multiple communication protocols and exchanges data with each automatic controller and the circuit breaker switch controller through the TCP network or the RS485 network.

[0045] The control unit supports the S7 TCP and MODBUS TCP server / client communication protocols. The former ensures data communication with the siemens series main CPU; the latter can ensure communication with other controllers or the background SCADA system that support the MODBUS TCP protocol.

[0046] The microenvironment control system for the electrical equipment room monitors and automatically controls the operating conditions of various internal equipment such as the HVAC system, lighting system, ventilation system, fire protection and security system, electrical parameters, and switch status in the electrical equipment room, as well as the internal operating environment and safety status of the device in real time.

[0047] Embodiment 3

[0048] The control method of the microenvironment control system for the electrical equipment room of the present invention uses the microenvironment control system for the electrical equipment room in Embodiment 3, and is specifically implemented according to the following steps:

[0049] Step 1, equipment self-check. As Figure 2 shown, after the microenvironment control system for the electrical equipment room is powered on, it performs a hardware self-check to detect whether the power supply, communication, I / O channels, and measurement signals are normal. If normal, the system works normally; otherwise, an alarm is issued.

[0050] Step 2, each sensor monitors the HVAC ventilation system, fire protection system, lighting system inside the skid, security system, and electrical parameters in the equipment room in real time and transmits the data to the control unit. The control unit transmits the data to the background system or receives the instructions issued by the background system, and controls each parameter in the electrical equipment room within the standard range.

[0051] Example 4

[0052] Based on Example 3, step 2 is specifically as follows:

[0053] 1) The real-time monitoring and control of the HVAC ventilation system is specifically as follows: The temperature and humidity sensor monitors the ambient temperature in the equipment room in real time and feeds it back to the temperature and humidity controller. The temperature and humidity controller transmits a signal to the management and control unit. As Figure 3 shown, when the temperature in the equipment room is below 0°C, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous opening of the air conditioner and the electric heater for heating and temperature increase; when the temperature in the equipment room is between 0°C and 5°C, the management and control unit sends a signal to the temperature and humidity controller to control the closing of the air conditioner and the opening of the electric heater for heating and temperature increase. At this time, only the electric heater operates alone; when the temperature in the equipment room is between 5°C and 30°C, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous closing of the electric heater and the air conditioner. At this time, the electric heater, the air conditioner, and the cooling fan are all in the off state; when the temperature in the equipment room is between 30°C and 35°C, the management and control unit sends a signal to the temperature and humidity controller to control only the opening of the cooling fan, and the cooling fan operates alone while the electric heater and the air conditioner are both closed; when the temperature in the equipment room is higher than 35°C, the management and control unit sends a signal to the temperature and humidity controller to control the opening of the air conditioner. At this time, the air conditioner and the cooling fan operate simultaneously for refrigeration and temperature reduction;

[0054] The temperature and humidity sensor monitors the ambient humidity in the equipment room in real time and feeds it back to the temperature and humidity controller. The temperature and humidity controller transmits a signal to the management and control unit. As Figure 4 shown, when the humidity in the equipment room is below 65%, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous closing of the dehumidification fan and the air conditioner; when the humidity in the equipment room is between 65% and 90%, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous opening of the electric heater and the dehumidification fan; when the humidity in the equipment room is higher than 95%, the management and control unit sends a signal to the temperature and humidity controller to control the closing of the dehumidification fan and the opening of the air conditioner for dehumidification. At this time, the air conditioner and the electric heater operate simultaneously;

[0055] The temperature and humidity sensor monitors the environmental parameters such as temperature and humidity in the equipment room in real time, and sends a signal to the temperature and humidity controller through the management and control unit to control the automatic start and stop of equipment such as air conditioners, heating and dehumidifiers, and fans, for automatic start at low temperatures, automatic stop at high temperatures, and automatic start of dehumidification when the humidity exceeds the set range. To ensure that the temperature inside the skid reaches the set range, achieve a good operating environment for the equipment, and extend the service life of the equipment.

[0056] 2) The real-time monitoring and control of the fire protection system is specifically as follows: The smoke sensor monitors the smoke concentration in the equipment room in real time. As Figure 5As shown, when the smoke concentration in the equipment room exceeds the set value, the smoke sensor sends a signal to the control unit. The control unit controls the lighting system controller to directly turn on the emergency lighting and escape indicator lights. At the same time, it triggers the fire protection system controller to turn on the audible and visual alarm for warning, shuts down the air conditioning fan ventilation equipment, and activates the fire extinguisher to extinguish the fire on important equipment in the electrical room;

[0057] 3) The real-time monitoring and control of the lighting system are specifically as follows: The infrared sensor switch is used to detect whether there are people in the skid house. If people are detected in the skid house, the control unit controls the common lighting lamps of the indoor lighting system to turn on. As Figure 7 shown, if it is detected that the people in the skid house leave and forget to turn off the indoor lighting, the control unit controls the indoor lighting system to automatically turn off;

[0058] 4) The real-time monitoring and control of the security system inside the skid are specifically as follows: The camera is used to monitor in real time whether there are unauthorized personnel entering. As Figure 6 shown, when unauthorized personnel enter the camera, the control unit records the traces of the personnel and sends a reminder alarm signal of personnel entry to the user background system;

[0059] 5) The real-time monitoring and control of the electrical parameters of the equipment in the equipment room are specifically as follows: The multi-functional power digital display instrument monitors the electrical parameters of each electrical equipment in the equipment room in real time. As Figure 8 shown, when an emergency occurs, such as a fire in the integrated device, power supply phase loss, undervoltage, short circuit, etc., the control unit immediately sends an alarm signal to the background SCADA monitoring system and triggers the circuit breaker switch controller to control the circuit breaker to trip, safely cutting off the total power supply. If the management personnel's background remote monitoring system discovers an abnormal emergency situation in the equipment room and needs to immediately cut off the total power supply, they can send a command to cut off the total power supply through the background SCADA monitoring system, and trigger the circuit breaker switch controller to cut off the main power circuit breaker through the control unit.

[0060] The opening and closing states of the circuit breaker are monitored in real time in the control unit, and the intelligent control unit can control the electromagnetic opening tripping coil of the circuit breaker switch controller.

[0061] The control unit performs real-time monitoring and automatic control functions on the electrical parameters. The multi-functional power digital display instrument transmits electrical parameters such as three-phase current, three-phase phase voltage, three-phase line voltage, three-phase active power, three-phase reactive power, three-phase power factor, three-phase active electric energy, and three-phase reactive electric energy to the programmable logic PLC controller of the control unit through the RS485 communication interface using the MODBUS-RTU protocol. The control unit will transmit these electrical parameters to the user background and give real-time alarms for situations such as power supply phase loss, undervoltage, short circuit, and increased reactive power loss.

[0062] The microenvironment control system for the electrical equipment room of the present invention has the working principle as follows: By monitoring and controlling the temperature, humidity, smoke concentration, electrical parameters, security, and lighting in the equipment room in real time, the control unit controls the automatic start and stop of each device, starts automatically at low temperature, stops automatically at high temperature, and starts dehumidification automatically when the humidity exceeds the set range to ensure that the temperature inside the skid reaches the set range, achieving a good operating environment for the equipment and extending the service life of the equipment; at the same time, it detects and alarms abnormal situations such as lighting, fire protection, and external illegal intrusion and fire alarms inside the skid.

[0063] The control method of the microenvironment control system for the electrical equipment room of the present invention has the advantages that: It monitors the HVAC ventilation system, lighting system, fire protection and security system, electrical parameters, etc. in a communication manner, automatically adjusts the operating state of the equipment, controls the automatic start and stop of the operation of each device. At the same time, users can remotely monitor various operating data in real time, which can also provide intuitive, scientific and rigorous data support for the daily inspection, maintenance, and repair work of the operation and maintenance personnel, improving the manual efficiency and management level, realizing automated management, being convenient to manage and having low operation and maintenance costs.

Claims

1. Electrical equipment room microenvironment control system, characterized in that, It includes a control unit installed separately in a smart management cabinet set up independently in the equipment room. The control unit includes a programmable logic controller module, which is connected to a communication module, a power module, and a human-machine interface. The control unit is connected to the background system. In the electrical equipment room, there are a heating, ventilation, and air conditioning (HVAC) system, a lighting system, a fire protection system, and a security system. Temperature and humidity sensors for data collection of the HVAC system, smoke sensors for data collection of the fire protection system, infrared sensors for data collection of the lighting system, and cameras for data collection of the security system are installed on the walls of the electrical equipment room. Multiple automatic controllers for controlling the equipment of each system in the equipment room are also installed on the walls of the electrical equipment room. The electrical equipment is also connected to a multi-functional power digital display meter, a circuit breaker, and a circuit breaker switch controller for electrical parameter collection. The multi-functional power digital display meter and each sensor are signal-connected to the programmable logic controller module, and the programmable logic controller module is respectively connected to each automatic controller and the circuit breaker switch controller to control the start and stop of each system in the electrical equipment room.

2. The electrical equipment room microenvironment control system according to claim 1, characterized in that, The HVAC system includes an electric heater, an air conditioner, and a fan. The lighting system includes common lighting lamps, emergency lighting lamps, and escape indicator lights. The fire protection system includes fire extinguishers, audible and visual alarms, and air conditioner fan ventilation equipment. The security system includes cameras.

3. The electrical equipment room microenvironment control system according to claim 2, characterized in that, The automatic controllers include a temperature and humidity controller, a lighting system controller, and a fire protection system controller. Each controller is respectively used to control the on / off of the equipment in each system.

4. The electrical equipment room microenvironment control system according to claim 3, characterized in that, The control unit exchanges data with each of the automatic controllers through a TCP network or an RS485 network.

5. The electrical equipment room microenvironment control system according to claim 3, characterized in that, The programmable logic controller module has the capabilities of data collection and processing, data storage, logic control, and mathematical operations. It adopts a one-to-many polling communication method and uploads the collected data to the background system through the communication module.

6. The electrical equipment room microenvironment control system according to claim 3, characterized in that, The programmable logic controller module is a programmable logic PLC controller, and the power supply is a UPS power supply; the background system is a background SCADA monitoring system, and the human-machine interface uses a color liquid crystal display operation panel.

7. The control method of the electrical equipment room microenvironment control system according to any one of claims 4-6, characterized in that, The specific steps are as follows: Step 1: Equipment self-check. After the microenvironment control system of the electrical equipment room is powered on, it performs a hardware self-check to detect whether the power supply, communication, I / O channels, and measurement signals are normal. If normal, the system works normally; otherwise, it alarms. Step 2: Each sensor monitors the HVAC system, fire protection system, lighting system in the skid, security system, and electrical parameters in the equipment room in real time and transmits the data to the control unit. The control unit transmits the data to the background system or receives the instructions issued by the background system to control each parameter in the electrical equipment room within the standard range.

8. The control method of the electrical equipment room microenvironment control system according to claim 7, characterized in that, The specific operation of Step 2 is as follows: The real-time monitoring and control of the HVAC system are specifically as follows: The temperature and humidity sensor monitors the ambient temperature in the equipment room in real time and feeds it back to the temperature and humidity controller. The temperature and humidity controller transmits a signal to the management and control unit. When the temperature in the equipment room is below 0°C, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous activation of the air conditioner and the electric heater for heating and temperature increase. When the temperature in the equipment room is between 0°C and 5°C, the management and control unit sends a signal to the temperature and humidity controller to control the shutdown of the air conditioner and the activation of the electric heater for heating and temperature increase. At this time, only the electric heater operates independently. When the temperature in the equipment room is between 5°C and 30°C, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous shutdown of the electric heater and the air conditioner. At this time, the electric heater, the air conditioner, and the cooling fan are all in the off state. When the temperature in the equipment room is between 30°C and 35°C, the management and control unit sends a signal to the temperature and humidity controller to control the activation of only the cooling fan, and the cooling fan operates independently while the electric heater and the air conditioner are both off. When the temperature in the equipment room is higher than 35°C, the management and control unit sends a signal to the temperature and humidity controller to control the activation of the air conditioner, and at this time, the air conditioner and the cooling fan operate simultaneously for cooling and temperature reduction. The temperature and humidity sensor monitors the ambient humidity in the equipment room in real time and feeds it back to the management and control unit. When the humidity in the equipment room is below 65%, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous shutdown of the dehumidification fan and the air conditioner. When the humidity in the equipment room is between 65% and 90%, the management and control unit sends a signal to the temperature and humidity controller to control the simultaneous activation of the electric heater and the dehumidification fan. When the humidity in the equipment room is higher than 95%, the management and control unit sends a signal to the temperature and humidity controller to control the shutdown of the dehumidification fan and the activation of the air conditioner for dehumidification. At this time, the air conditioner and the electric heater operate simultaneously. The real-time monitoring and control of the fire protection system are specifically as follows: The smoke sensor monitors the smoke concentration in the equipment room in real time. When the smoke concentration in the equipment room exceeds the set value, the smoke sensor sends a signal to the management and control unit. The management and control unit controls the lighting system controller to directly turn on the emergency lighting and the escape indicator lights, and at the same time triggers the fire protection system controller to turn on the audible and visual alarm for warning, shuts down the air conditioner and the ventilation equipment of the fan, and activates the fire extinguisher. The real-time monitoring and control of the lighting system are specifically as follows: The infrared sensor switch is used to detect whether there are people in the skid house. If it is detected that there are people in the skid house, the management and control unit controls the indoor lighting system to turn on the common lighting lamps. If it is detected that there are no people in the skid house, the management and control unit controls the indoor lighting system to automatically turn off. The real-time monitoring and control of the security system inside the skid are specifically as follows: The camera is used to monitor in real time whether there are unauthorized personnel entering. When unauthorized personnel enter the camera, the management and control unit records the traces of the personnel and sends a reminder alarm signal for personnel entry to the user background system. The real-time monitoring and control of the electrical parameters are specifically as follows: The multi-functional power digital display instrument monitors the electrical parameters of each device in the equipment room in real time. When a circuit fault occurs, the management and control unit sends an alarm signal to the background system and triggers the breaker switch controller to control the breaker to trip and cut off the main power supply. If the management personnel find an abnormal emergency in the equipment room through the background remote monitoring system, they issue an instruction to cut off the main power supply through the background system, and trigger the breaker switch controller through the management and control unit to cut off the main power breaker.