CN112947285A - Power transformation and distribution room joint control energy-saving system - Google Patents
Power transformation and distribution room joint control energy-saving system Download PDFInfo
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- CN112947285A CN112947285A CN202110296328.2A CN202110296328A CN112947285A CN 112947285 A CN112947285 A CN 112947285A CN 202110296328 A CN202110296328 A CN 202110296328A CN 112947285 A CN112947285 A CN 112947285A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
- Y04S20/244—Home appliances the home appliances being or involving heating ventilating and air conditioning [HVAC] units
Abstract
The invention provides a joint control energy-saving system for a power transformation and distribution room, which comprises a temperature acquisition device, an intelligent control cabinet, a PLC (programmable logic controller), a frequency converter and a temperature regulation and control device, wherein the temperature acquisition device is connected with the intelligent control cabinet; the temperature acquisition device is used for acquiring temperature information and sending the acquired temperature information to the intelligent control cabinet; the intelligent control cabinet analyzes and processes the received temperature information, determines an execution strategy and sends the execution strategy to the PLC and the frequency converter; the PLC and the frequency converter receive an execution strategy and control the starting, stopping or rotating speed of the temperature regulating device; the joint control energy-saving system for the power transformation and distribution room provided by the invention can meet the temperature environment requirement of the power transformation and distribution room and realize the energy-saving effect.
Description
Technical Field
The invention relates to the field of control of power transformation and distribution rooms, in particular to a combined control energy-saving system for a power transformation and distribution room.
Background
The normal safe operation of electrical components, transformers and other equipment in the adverse transformation and distribution cabinet is caused to the indoor high temperature environment of various types of electric power transformation and distribution rooms such as residential districts, superstores, administrative office buildings and the like, and simultaneously, because the equipment in the high-voltage distribution room continuously generates heat in the operation process, the temperature in the high-voltage distribution room is high, the failure rate of the electrical components is high, and the service life is short.
Disclosure of Invention
The invention mainly aims to overcome the defects in the prior art and provide the joint control energy-saving system for the power transformation and distribution room, which can meet the temperature environment requirement of the power transformation and distribution room and realize the energy-saving effect.
The invention adopts the following technical scheme:
a power transformation and distribution room joint control energy-saving system comprises a temperature acquisition device, an intelligent control cabinet, a PLC, a frequency converter and a temperature regulation and control device; the temperature acquisition device is used for acquiring temperature information and sending the acquired temperature information to the intelligent control cabinet; the intelligent control cabinet analyzes and processes the received temperature information, determines an execution strategy and sends the execution strategy to the PLC and the frequency converter; the PLC and the frequency converter receive an execution strategy and control the starting, stopping or rotating speed of the temperature regulating device;
the temperature acquisition device is a temperature sensor which comprises a first temperature sensor T1, a second temperature sensor T2, a third temperature sensor T3, a fourth temperature sensor T4, a fifth temperature sensor T5, a sixth temperature sensor T6 and a seventh temperature sensor T7; the first temperature sensor T1, the second temperature sensor T2, the third temperature sensor T3 and the fourth temperature sensor T4 are arranged in the power distribution room, the sixth temperature sensor T6 and the seventh temperature sensor T7 are arranged in the power transformation room, and the seventh temperature sensor T7 is arranged outdoors; the temperature regulation and control device comprises an air conditioner, an exhaust fan and a natural air circulator, wherein the air conditioner comprises a first air conditioner, a second air conditioner and a third air conditioner, the exhaust fan comprises a first exhaust fan, a second exhaust fan, a third exhaust fan and a fourth exhaust fan, and the natural air circulator comprises a first natural air circulator and a second natural air circulator; the power distribution room is internally provided with a first air conditioner, a second air conditioner, a first exhaust fan, a second exhaust fan and a first natural air circulator; a third air conditioner, a third exhaust fan, a fourth exhaust fan and a second natural air circulator are arranged in the power transformation room;
the intelligent control cabinet analyzes and processes the received temperature information and determines an execution strategy, and the method specifically comprises the following steps:
in the distribution room:
the first strategy is as follows: when the T1, the T2, the T3 and the T4 are all smaller than 30 ℃, the air conditioner, the exhaust fan and the natural air circulating machine are not started;
the second strategy is as follows: when the temperature of T1, T2, T3 and T4 is more than or equal to 30 degrees and less than 37 degrees, the air conditioner is not started, the natural air circulator is started, and if the temperature of Ta minus T7 is more than or equal to 3 degrees, the exhaust fan is started, otherwise, the exhaust fan is not started; wherein Ta is the average value of T1, T2, T3 and T4, and when T1, T2, T3 and T4 are all smaller than 30 degrees, the air conditioner, the exhaust fan and the natural air circulator are all closed;
the third strategy is as follows: when the temperature T1, the temperature T2, the temperature T3 and the temperature T4 are all larger than or equal to 37 ℃, the air conditioner is started, the natural air circulator is started, and the exhaust fan is not started;
setting the air conditioner at 27 degrees, wherein after 15min, the temperature of T1, T2, T3 and T4 is still more than or equal to 37 degrees, and setting the air conditioner at 24 degrees, and decreasing by 3 degrees every time until the temperature of the air conditioner is set at 18 degrees;
if the air conditioner is set at a temperature of 15min, T1, T2, T3 and T4 are all larger than or equal to 30 degrees and smaller than 37 degrees, and the equipment is maintained in the opening state for 30min and then the second strategy state is recovered;
setting 18 degrees by an air conditioner, after 15min, transmitting alarm information when T1, T2, T3 and T4 are still more than or equal to 37 degrees;
in the transformer room:
the first strategy is as follows: when both T5 and T6 are less than 30 ℃, the air conditioner, the exhaust fan and the natural air circulator are not started;
the second strategy is as follows: when the temperature of T5 and T6 is more than or equal to 30 degrees and less than 37 degrees, the natural air circulator is started, the air conditioner and the exhaust fan are not started, and if the temperature of Ta 'minus T7 is more than or equal to 3 degrees, wherein Ta' is the average value of T5 and T6, the natural air circulator and the exhaust fan are started, the air conditioner is not started, and when the temperature of T5 and the temperature of T6 are less than 30 degrees, the air conditioner, the exhaust fan and the natural air circulator are all closed;
the third strategy is as follows: and when the T1, the T2, the T3 and the T4 are all larger than or equal to 37 degrees, the air conditioner is started, the natural air circulator is started, the exhaust fan is not started, the air conditioner is started for a modified value, and if the T5 and the T6 are still larger than or equal to 42 degrees after 15min, alarm information is sent.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
(1) according to the power transformation and distribution room joint control energy-saving system provided by the invention, the intelligent environment control system determines a control strategy according to an intelligent control cabinet by acquiring indoor temperature data, controls the rotating speed of a natural wind circulator, the starting and stopping of an axial flow fan and the starting and stopping of an air conditioner by electrical elements such as a PLC (programmable logic controller), a frequency converter and the like, automatically adjusts the running states of the natural wind circulator, the axial flow fan and the air conditioner, realizes different environmental temperature regulation in different seasons, achieves a preset environmental effect, and can realize energy conservation.
(2) In addition, the invention also provides a series of comprehensive and fine temperature control strategies, and the combination of the two technical means realizes the accurate regulation and control of different environmental temperatures in different seasons and also can realize the effect of energy conservation.
Drawings
Fig. 1 is a structural diagram of a control process of an energy saving system for joint control of a power transformation and distribution room according to an embodiment of the present invention;
fig. 2 is an engineering topological diagram of an intelligent environment system according to an embodiment of the present invention.
The invention is described in further detail below with reference to the figures and specific examples.
Detailed Description
The invention provides a joint control energy-saving system for a power transformation and distribution room, wherein an intelligent environment control system determines a control strategy according to an intelligent control cabinet by acquiring indoor temperature data, controls the rotating speed of a natural wind circulator, the starting and stopping of an axial flow fan and the starting and stopping of an air conditioner by electrical elements such as a PLC (programmable logic controller), a frequency converter and the like, automatically adjusts the running states of the natural wind circulator, the axial flow fan and the air conditioner, realizes different environmental temperature regulation in different seasons, achieves a preset environmental effect, and can realize energy conservation.
As shown in fig. 1, a structure diagram of a control process of an energy-saving system for joint control of a power transformation and distribution room provided in an embodiment of the present invention specifically includes:
a power transformation and distribution room joint control energy-saving system comprises a temperature acquisition device, an intelligent control cabinet, a PLC, a frequency converter and a temperature regulation and control device; the temperature acquisition device is used for acquiring temperature information and sending the acquired temperature information to the intelligent control cabinet; the intelligent control cabinet analyzes and processes the received temperature information, determines an execution strategy and sends the execution strategy to the PLC and the frequency converter; the PLC and the frequency converter receive an execution strategy and control the starting, stopping or rotating speed of the temperature regulating device;
the temperature acquisition device is a temperature sensor, and in order to provide a basis for realizing accurate temperature control subsequently, a plurality of temperature acquisition devices are arranged in the power distribution room and the power transformation room for accurate temperature acquisition, and the method specifically comprises the following steps:
the temperature sensors comprise a first temperature sensor T1, a second temperature sensor T2, a third temperature sensor T3, a fourth temperature sensor T4, a fifth temperature sensor T5, a sixth temperature sensor T6 and a seventh temperature sensor T7; the first temperature sensor T1, the second temperature sensor T2, the third temperature sensor T3 and the fourth temperature sensor T4 are arranged in the power distribution room, the sixth temperature sensor T6 and the seventh temperature sensor T7 are arranged in the power transformation room, and the seventh temperature sensor T7 is arranged outdoors; the temperature regulation and control device comprises an air conditioner, an exhaust fan and a natural air circulator, wherein the air conditioner comprises a first air conditioner, a second air conditioner and a third air conditioner, the exhaust fan comprises a first exhaust fan, a second exhaust fan, a third exhaust fan and a fourth exhaust fan, and the natural air circulator comprises a first natural air circulator and a second natural air circulator; the power distribution room is internally provided with a first air conditioner, a second air conditioner, a first exhaust fan, a second exhaust fan and a first natural air circulator; a third air conditioner, a third exhaust fan, a fourth exhaust fan and a second natural air circulator are arranged in the power transformation room;
the detailed configuration table of the relevant devices is shown in the following table:
the intelligent control cabinet analyzes and processes the received temperature information and determines an execution strategy, and the method specifically comprises the following steps:
in the distribution room:
the first strategy is as follows: when the T1, the T2, the T3 and the T4 are all smaller than 30 ℃, the air conditioner, the exhaust fan and the natural air circulating machine are not started;
the second strategy is as follows: when the temperature of T1, T2, T3 and T4 is more than or equal to 30 degrees and less than 37 degrees, the air conditioner is not started, the natural air circulator is started, and if the temperature of Ta minus T7 is more than or equal to 3 degrees, the exhaust fan is started, otherwise, the exhaust fan is not started; wherein Ta is the average value of T1, T2, T3 and T4, and when T1, T2, T3 and T4 are all smaller than 30 degrees, the air conditioner, the exhaust fan and the natural air circulator are all closed;
the third strategy is as follows: when the temperature T1, the temperature T2, the temperature T3 and the temperature T4 are all larger than or equal to 37 ℃, the air conditioner is started, the natural air circulator is started, and the exhaust fan is not started;
setting the air conditioner at 27 degrees, wherein after 15min, the temperature of T1, T2, T3 and T4 is still more than or equal to 37 degrees, and setting the air conditioner at 24 degrees, and decreasing by 3 degrees every time until the temperature of the air conditioner is set at 18 degrees;
if the air conditioner is set at a temperature of 15min, T1, T2, T3 and T4 are all larger than or equal to 30 degrees and smaller than 37 degrees, and the equipment is maintained in the opening state for 30min and then the second strategy state is recovered;
setting 18 degrees by an air conditioner, after 15min, transmitting alarm information when T1, T2, T3 and T4 are still more than or equal to 37 degrees;
in the transformer room:
the first strategy is as follows: when both T5 and T6 are less than 30 ℃, the air conditioner, the exhaust fan and the natural air circulator are not started;
the second strategy is as follows: when the temperature of T5 and T6 is more than or equal to 30 degrees and less than 37 degrees, the natural air circulator is started, the air conditioner and the exhaust fan are not started, and if the temperature of Ta 'minus T7 is more than or equal to 3 degrees, wherein Ta' is the average value of T5 and T6, the natural air circulator and the exhaust fan are started, the air conditioner is not started, and when the temperature of T5 and the temperature of T6 are less than 30 degrees, the air conditioner, the exhaust fan and the natural air circulator are all closed;
the third strategy is as follows: and when the T1, the T2, the T3 and the T4 are all larger than or equal to 37 degrees, the air conditioner is started, the natural air circulator is started, the exhaust fan is not started, the air conditioner is started for a modified value, and if the T5 and the T6 are still larger than or equal to 42 degrees after 15min, alarm information is sent.
Fig. 2 is an engineering topological diagram of an intelligent environment system according to an embodiment of the present invention, and the system according to the present invention may further access the internet of things to implement a man-machine conversation, and perform functions such as real-time data browsing, image-text display, and remote control.
According to the invention, a ventilation cooling mode combining an expansion intelligent circulator, an axial flow fan and an air conditioner is adopted in the power distribution room, and different equipment combination cooling modes are automatically adopted according to environmental temperatures in different seasons throughout the year through the intelligent control cabinet, so that the starting time of the air conditioner throughout the year is greatly reduced by the intelligent environment cooling system engineering, and the energy-saving effect is achieved. The power saving rate of the ventilation cooling mode using the circulator and the axial flow fan is 70% compared with the cooling mode using the air conditioner, if the air conditioner is not considered to be started for 3 months in winter all the year, the time for starting the air conditioner for 9 months is reduced to two months of 7 months and 8 months.
According to the power transformation and distribution room joint control energy-saving system provided by the invention, the intelligent environment control system determines a control strategy according to an intelligent control cabinet by acquiring indoor temperature data, controls the rotating speed of a natural wind circulator, the starting and stopping of an axial flow fan and the starting and stopping of an air conditioner by electrical elements such as a PLC (programmable logic controller), a frequency converter and the like, automatically adjusts the running states of the natural wind circulator, the axial flow fan and the air conditioner, realizes different environmental temperature regulation in different seasons, achieves a preset environmental effect, and can realize energy conservation.
In addition, the invention also provides a series of comprehensive and fine temperature control strategies, and the combination of the two technical means realizes the accurate regulation and control of different environmental temperatures in different seasons and also can realize the effect of energy conservation.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (1)
1. A power transformation and distribution room joint control energy-saving system is characterized by comprising a temperature acquisition device, an intelligent control cabinet, a PLC, a frequency converter and a temperature regulation and control device; the temperature acquisition device is used for acquiring temperature information and sending the acquired temperature information to the intelligent control cabinet; the intelligent control cabinet analyzes and processes the received temperature information, determines an execution strategy and sends the execution strategy to the PLC and the frequency converter; the PLC and the frequency converter receive an execution strategy and control the starting, stopping or rotating speed of the temperature regulating device;
the temperature acquisition device is a temperature sensor which comprises a first temperature sensor T1, a second temperature sensor T2, a third temperature sensor T3, a fourth temperature sensor T4, a fifth temperature sensor T5, a sixth temperature sensor T6 and a seventh temperature sensor T7; the first temperature sensor T1, the second temperature sensor T2, the third temperature sensor T3 and the fourth temperature sensor T4 are arranged in the power distribution room, the sixth temperature sensor T6 and the seventh temperature sensor T7 are arranged in the power transformation room, and the seventh temperature sensor T7 is arranged outdoors; the temperature regulation and control device comprises an air conditioner, an exhaust fan and a natural air circulator, wherein the air conditioner comprises a first air conditioner, a second air conditioner and a third air conditioner, the exhaust fan comprises a first exhaust fan, a second exhaust fan, a third exhaust fan and a fourth exhaust fan, and the natural air circulator comprises a first natural air circulator and a second natural air circulator; the power distribution room is internally provided with a first air conditioner, a second air conditioner, a first exhaust fan, a second exhaust fan and a first natural air circulator; a third air conditioner, a third exhaust fan, a fourth exhaust fan and a second natural air circulator are arranged in the power transformation room;
the intelligent control cabinet analyzes and processes the received temperature information and determines an execution strategy, and the method specifically comprises the following steps:
in the distribution room:
the first strategy is as follows: when the T1, the T2, the T3 and the T4 are all smaller than 30 ℃, the air conditioner, the exhaust fan and the natural air circulating machine are not started;
the second strategy is as follows: when the temperature of T1, T2, T3 and T4 is more than or equal to 30 degrees and less than 37 degrees, the air conditioner is not started, the natural air circulator is started, and if the temperature of Ta minus T7 is more than or equal to 3 degrees, the exhaust fan is started, otherwise, the exhaust fan is not started; wherein Ta is the average value of T1, T2, T3 and T4, and when T1, T2, T3 and T4 are all smaller than 30 degrees, the air conditioner, the exhaust fan and the natural air circulator are all closed;
the third strategy is as follows: when the temperature T1, the temperature T2, the temperature T3 and the temperature T4 are all larger than or equal to 37 ℃, the air conditioner is started, the natural air circulator is started, and the exhaust fan is not started;
setting the air conditioner at 27 degrees, wherein after 15min, the temperature of T1, T2, T3 and T4 is still more than or equal to 37 degrees, and setting the air conditioner at 24 degrees, and decreasing by 3 degrees every time until the temperature of the air conditioner is set at 18 degrees;
if the air conditioner is set at a temperature of 15min, T1, T2, T3 and T4 are all larger than or equal to 30 degrees and smaller than 37 degrees, and the equipment is maintained in the opening state for 30min and then the second strategy state is recovered;
setting 18 degrees by an air conditioner, after 15min, transmitting alarm information when T1, T2, T3 and T4 are still more than or equal to 37 degrees;
in the transformer room:
the first strategy is as follows: when both T5 and T6 are less than 30 ℃, the air conditioner, the exhaust fan and the natural air circulator are not started;
the second strategy is as follows: when the temperature of T5 and T6 is more than or equal to 30 degrees and less than 37 degrees, the natural air circulator is started, the air conditioner and the exhaust fan are not started, and if the temperature of Ta 'minus T7 is more than or equal to 3 degrees, wherein Ta' is the average value of T5 and T6, the natural air circulator and the exhaust fan are started, the air conditioner is not started, and when the temperature of T5 and the temperature of T6 are less than 30 degrees, the air conditioner, the exhaust fan and the natural air circulator are all closed;
the third strategy is as follows: and when the T1, the T2, the T3 and the T4 are all larger than or equal to 37 degrees, the air conditioner is started, the natural air circulator is started, the exhaust fan is not started, the air conditioner is started for a modified value, and if the T5 and the T6 are still larger than or equal to 42 degrees after 15min, alarm information is sent.
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