CN113746086B - Non-invasive demand response system and method - Google Patents
Non-invasive demand response system and method Download PDFInfo
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- CN113746086B CN113746086B CN202110887269.6A CN202110887269A CN113746086B CN 113746086 B CN113746086 B CN 113746086B CN 202110887269 A CN202110887269 A CN 202110887269A CN 113746086 B CN113746086 B CN 113746086B
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- 230000004044 response Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 26
- 238000012544 monitoring process Methods 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 12
- 230000033228 biological regulation Effects 0.000 claims abstract description 8
- 230000003993 interaction Effects 0.000 claims abstract description 7
- 230000001052 transient effect Effects 0.000 claims description 50
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 8
- 238000004128 high performance liquid chromatography Methods 0.000 claims description 5
- 238000010606 normalization Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a non-invasive demand response system and a non-invasive demand response method, wherein the non-invasive demand response system comprises a user control end, a control end and a control end, wherein the user control end is used for realizing data acquisition of the user end and receiving a signal of a total control end for response; and the communication module is used for realizing information interaction between the user terminal master control terminals and is respectively connected with the user control terminal and the master control terminal. And the total control end is used for monitoring the power load condition and realizing load regulation and control. According to the technical scheme, the data of the user household total ammeter is monitored, so that the judgment of the household electricity consumption condition of the user is realized by combining the total electricity consumption according to the lifting change of the instantaneous current value in the electric power parameter curve, the timely and accurate demand response is performed, the power supply capacity judgment is also performed by combining the historical power grid load curve, the monitoring of the user electricity consumption details is met, and the timely demand response is realized.
Description
Technical Field
The present invention relates to the field of demand response technologies, and in particular, to a non-invasive demand response system and method.
Background
The time for developing the demand response in China is short, and the comprehensive research and practice on the demand response are not enough. At present, the implementation demand response project of China is mainly required, and the application scene is single; the regulated demand response resources are only specific electric appliance types such as air conditioners and the like, are single, peak load is reduced in summer, the service needs such as on-site consumption of new energy and rapid emergency response are not considered, the research on interactive application technology of the large-scale demand response resources is lacking, and the demand response potential is not fully exerted; the demand response is based on an information interaction model with trial and demonstration as a main design standard, a unified platform of the company system demand response service is built, unified management and unified allocation of demand response resources are realized, and the multi-scene service demands of the company for new energy consumption, quick response, differentiated value-added service and the like are met.
Chinese patent document CN106786542a discloses a "demand response system". The system comprises a demand response master station, a demand response interactive service terminal and a demand response execution unit which are communicated with each other; the cloud computing platform is fully utilized to combine the power grid enterprise data with the power consumer demand response data information resources, so that demand response interactive services are provided for power grid enterprises and power consumers, the load management workload of the power grid enterprises is reduced, and the power supply reliability and flexibility of the power grid are improved. The technical scheme is difficult to meet the requirement of monitoring the electricity consumption details of the user, and timely demand response is realized.
Disclosure of Invention
The invention mainly solves the technical problems that the original technical scheme is difficult to meet the requirement response in time when the user uses electricity, and provides a non-invasive requirement response system and a non-invasive requirement response method.
The technical problems of the invention are mainly solved by the following technical proposal:
a non-invasive demand response system, comprising:
the user control end is used for realizing data acquisition of the user end and receiving the signal of the total control end to respond;
and the communication module is used for realizing information interaction between the user terminal master control terminals and is respectively connected with the user control terminal and the master control terminal.
And the total control end is used for monitoring the power load condition and realizing load regulation and control.
Preferably, the user control end comprises an acquisition module, a carrier circuit breaker and a carrier concentrator, wherein the acquisition module is connected with the input end of the household total ammeter, the carrier circuit breaker is connected with the input end of the household total ammeter, and the carrier concentrator is connected with the communication module. The acquisition module is used for acquiring power data of the user side, the carrier circuit breaker is used for realizing information interaction with the main control side and controlling circuit breaking, and the carrier concentrator is used for summarizing carrier circuit breaker signals and signal conversion.
Preferably, the communication module comprises a zero-crossing detection circuit, a signal transmitting circuit, a signal coupling circuit, a signal receiving filter circuit and a zero-crossing synchronization circuit which are sequentially connected, wherein an input control end of the signal coupling circuit is connected with a user control end, and an input end of the zero-crossing detection circuit and an output end of the zero-crossing synchronization circuit are connected with a carrier signal. The carrier wave judges sampling time through the zero-crossing detection circuit, and a signal to be transmitted is transmitted through the signal transmitting circuit and is coupled to the electric wire through the signal coupling circuit for transmission; information transmitted on the electric wire is also transmitted to the signal receiving filter circuit and the zero crossing synchronization circuit through the signal coupling circuit, so that bidirectional information transmission is realized, and carrier sampling has the characteristic of stability.
Preferably, the total control end comprises an electric power control center for monitoring the electric power load condition and pushing information, the electric power control center is connected with the monitoring management cloud platform, and the total control end further comprises a handheld control terminal which is respectively connected with the electric power control center and the monitoring management cloud platform. The power control center is used for monitoring power load conditions, pushing information and issuing instructions, the monitoring management cloud platform is used for storing data to the cloud end so as to be convenient to optimize, and the handheld control terminal is used for remote monitoring and issuing instructions.
A method of operating a non-invasive demand response system, comprising the steps of:
s1, a collection module collects user power parameters and user load curves and transmits the user power parameters and the user load curves to a main control end;
s2, the electric power control center carries out non-invasive judgment on the real-time electricity utilization condition of the user;
s3, the power control center combines the historical power grid load curve and the user load curve to carry out compensation judgment;
s4, realizing demand response regulation and control through a carrier circuit breaker.
Preferably, the step S2 of performing non-invasive determination on the real-time electricity consumption status of the user specifically includes: s2.1, monitoring electric power parameters and fitting an electric power parameter curve through an electric meter installed at a user total input end;
s2.2, extracting transient current values in the power parameter curve and judging;
s2.3, if the transient current value exceeds a threshold value, extracting the power parameter change at the transient moment to construct a positive transient point and a negative transient point;
s2.4, connecting transient points to form a power parameter change line graph;
and S2.5, before scheduling, matching the positive transient point and the negative transient point before the moment to judge the running of the electric appliance by the user.
Preferably, in the step S2.2, if the current instantaneous change in the power parameter curve exceeds the set threshold Δi, the current instantaneous change is determined as a non-current fluctuation change value, the calculation of the power instantaneous change is realized by the current and voltage data at the moment, and the opening and closing of the electrical appliance in the user' S home are determined by the embodiment of the power instantaneous change in the total load.
Preferably, in the step S2.3, the current change point at the moment of the power transient increase is taken as a positive transient point, the current change point at the moment of the power transient decrease is taken as a negative transient point, the positive transient point and the negative transient point before the moment are matched before the scheduling, if the power transient increase amount of the positive transient point is close to the power transient decrease amount of the negative transient point, the same electric appliance is judged to be turned off, and the electric appliance is judged to be not turned off when only the positive transient point exists.
Preferably, the step S3 of performing compensation determination by combining the grid load curve and the user load curve specifically includes:
s3.1, carrying out normalization processing on a historical power grid load curve and a low-voltage user load curve;
s3.2, performing compensation judgment according to the same moment in the historical power grid load curve;
and S3.3, if the idle load exists in the historical power grid load curve at the same moment, compensating the user, and if the idle load does not exist, judging that the compensation cannot be performed and notifying the user.
Preferably, the step S4 judges that the power control center issues the command after finishing, the command is received by the carrier concentrator and then converted into the HPLC power line carrier layer channel to continue issuing the trip command to the carrier circuit breaker, the carrier circuit breaker receives the command of the power line HPLC layer, and when the communication address matches with the carrier circuit breaker, the command meaning is analyzed and the command is executed.
The beneficial effects of the invention are as follows: the data of the user household total ammeter is monitored, so that the judgment of the household electricity consumption condition of the user is realized according to the lifting change of the instantaneous current value in the electric power parameter curve and the total electricity consumption, timely and accurate demand response is performed, and the power supply capacity judgment is performed by combining the historical power grid load curve, so that the monitoring of the user electricity consumption details is met, and timely demand response is realized.
Drawings
Fig. 1 is a schematic connection structure diagram of the present invention.
Fig. 2 is a schematic connection structure diagram of a communication module of the present invention.
Fig. 3 is a flow chart of the present invention.
In the figure, a user control end, a 1.1 acquisition module, a 1.2 carrier circuit breaker, a 1.3 carrier concentrator, a 2 communication module, a 3 total control end, a 3.1 power control center, a 3.2 monitoring management cloud platform and a 3.3 handheld control terminal are shown.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Examples: a non-invasive demand response system and method in this embodiment, as shown in FIG. 1, includes a user control terminal 1, a communication module 2, and a master control terminal 3 connected in sequence. The user control end 1 comprises a collection module 1.1, a carrier circuit breaker 1.2 and a carrier concentrator 1.3, wherein the collection module 1.1 is connected with the output end of the household total ammeter, the carrier circuit breaker 1.2 is connected with the input end of the household total ammeter, and the carrier concentrator 1.3 is connected with the communication module 2. The user control terminal 1 is used for realizing data acquisition of the user terminal and receiving the signal of the total control terminal to respond. The acquisition module is used for acquiring power data of the user side, the carrier circuit breaker is used for realizing information interaction with the main control side and controlling circuit breaking, and the carrier concentrator is used for summarizing carrier circuit breaker signals and signal conversion.
As shown in fig. 2, the communication module 2 includes a zero-crossing detection circuit, a signal transmission circuit, a signal coupling circuit, a signal receiving filter circuit and a zero-crossing synchronization circuit that are sequentially connected, an input control end of the signal coupling circuit is connected with the user control end 1, and an input end of the zero-crossing detection circuit and an output end of the zero-crossing synchronization circuit are connected with a carrier signal. The communication module 2 is used for realizing information interaction between the user side master control sides. The carrier wave judges sampling time through the zero-crossing detection circuit, and a signal to be transmitted is transmitted through the signal transmitting circuit and is coupled to the electric wire through the signal coupling circuit for transmission; information transmitted on the electric wire is also transmitted to the signal receiving filter circuit and the zero crossing synchronization circuit through the signal coupling circuit, so that bidirectional information transmission is realized, and carrier sampling has the characteristic of stability.
The total control end 3 comprises an electric control center 3.1 for monitoring the electric load condition and pushing information, wherein the electric control center 3.1 is connected with a monitoring management cloud platform 3.2, and further comprises a handheld control terminal 3.3 which is respectively connected with the electric control center 3.1 and the monitoring management cloud platform 3.2. The main control terminal 3 is used for monitoring the power load condition and realizing load regulation. The power control center is used for monitoring power load conditions, pushing information and issuing instructions, the monitoring management cloud platform is used for storing data to the cloud end so as to be convenient to optimize, and the handheld control terminal is used for remote monitoring and issuing instructions.
A method of operating a non-invasive demand response system, as shown in fig. 3, comprising the steps of:
s1, a collection module 1.1 collects user power parameters and user load curves and transmits the user power parameters and the user load curves to a total control end 3;
s2, the power control center 3.1 carries out non-invasive judgment on the real-time power utilization condition of the user, and specifically comprises the following steps:
s2.1, monitoring electric power parameters and fitting an electric power parameter curve through an electric meter installed at a user total input end;
s2.2, extracting transient current values in the power parameter curve and judging; and if the current instantaneous change quantity in the power parameter curve exceeds the set threshold delta I, the current instantaneous change quantity is determined to be a non-current fluctuation change value, the calculation of the power instantaneous change quantity is realized through the current and voltage data at the moment, and the opening and closing of the electrical appliance in the user home are determined through the embodiment of the power instantaneous change quantity in the total load.
S2.3, if the transient current value exceeds a threshold value, extracting the power parameter change at the transient moment to construct a positive transient point and a negative transient point; and matching the positive transient point and the negative transient point before the moment when the power is instantaneously increased is used as a positive transient point, judging that the same electric appliance is closed if the moment when the power is instantaneously increased and the moment when the power is instantaneously decreased are close to each other, and judging that the electric appliance is not closed if only the positive transient point exists.
S2.4, connecting transient points to form a power parameter change line graph;
and S2.5, before scheduling, matching the positive transient point and the negative transient point before the moment to judge the running of the electric appliance by the user.
S3, the power control center 3.1 carries out compensation judgment by combining a historical power grid load curve and a user load curve, and specifically comprises the following steps:
s3.1, carrying out normalization processing on a historical power grid load curve and a low-voltage user load curve;
s3.2, performing compensation judgment according to the same moment in the historical power grid load curve;
and S3.3, if the idle load exists in the historical power grid load curve at the same moment, compensating the user, and if the idle load does not exist, judging that the compensation cannot be performed and notifying the user.
S4, realizing demand response regulation and control through the carrier circuit breaker 1.2, judging that the power control center 3.1 issues an instruction after finishing, converting the instruction into an HPLC power line carrier layer channel to continuously issue a tripping instruction to the carrier circuit breaker 1.2 after receiving the instruction through the carrier concentrator 1.3, and starting to analyze the instruction meaning and execute the instruction when the communication address is matched with the carrier circuit breaker 1.2 to realize demand response regulation and control.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as user control, overall control, etc. are used more herein, the possibility of using other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (6)
1. A non-invasive demand response system, comprising:
the user control terminal (1) is used for realizing data acquisition of the user terminal and receiving a total control terminal signal to respond, the user control terminal (1) comprises an acquisition module (1.1), a carrier circuit breaker (1.2) and a carrier concentrator (1.3), the acquisition module (1.1) is connected with the output end of the household total ammeter, the carrier circuit breaker (1.2) is connected with the input end of the household total ammeter, and the carrier concentrator (1.3) is connected with the communication module (2);
the communication module (2) is used for realizing information interaction between the user terminal master control terminals and is respectively connected with the user control terminal (1) and the master control terminal (3);
the system comprises a main control end (3) and a handheld control terminal (3.3), wherein the main control end (3) is used for monitoring the power load condition and realizing load regulation, the main control end (3) comprises a power control center (3.1) used for monitoring the power load condition and pushing information, the power control center (3.1) is connected with a monitoring management cloud platform (3.2), and the handheld control terminal (3.3) is respectively connected with the power control center (3.1) and the monitoring management cloud platform (3.2);
the working method comprises the following steps:
s1, a collection module (1.1) collects user power parameters and user load curves and transmits the user power parameters and the user load curves to a total control end (3); s2, the electric power control center (3.1) carries out non-invasive judgment on the real-time electricity utilization condition of the user;
s3, the power control center (3.1) carries out compensation judgment by combining a historical power grid load curve and a user load curve, and specifically comprises the following steps:
s3.1, carrying out normalization processing on a historical power grid load curve and a low-voltage user load curve;
s3.2, performing compensation judgment according to the same moment in the historical power grid load curve;
s3.3, if the idle load exists in the historical power grid load curve at the same moment, compensating the user, and if the idle load does not exist, judging that the compensation cannot be performed and informing the user;
s4, realizing demand response regulation and control through a carrier circuit breaker (1.2).
2. A non-invasive demand response system according to claim 1, wherein the communication module (2) comprises a zero-crossing detection circuit, a signal transmission circuit, a signal coupling circuit, a signal receiving filter circuit and a zero-crossing synchronization circuit, which are sequentially connected, an input control terminal of the signal coupling circuit is connected to the user control terminal (1), and an input terminal of the zero-crossing detection circuit and an output terminal of the zero-crossing synchronization circuit are connected to the carrier signal.
3. The non-invasive demand response system according to claim 1, wherein the step S2 of non-invasively determining the real-time electricity consumption of the user specifically comprises:
s2.1, monitoring electric power parameters and fitting an electric power parameter curve through an electric meter installed at a user total input end;
s2.2, extracting transient current values in the power parameter curve and judging;
s2.3, if the transient current value exceeds a threshold value, extracting the power parameter change at the transient moment to construct a positive transient point and a negative transient point;
s2.4, connecting transient points to form a power parameter change line graph;
and S2.5, before scheduling, matching the positive transient point and the negative transient point before the moment to judge the running of the electric appliance by the user.
4. A non-invasive demand response system according to claim 3, wherein the current instantaneous change in the power parameter curve in step S2.2 exceeds the set threshold Δi, and is determined as a non-current fluctuation change value, the calculation of the power instantaneous change is implemented by the current and voltage data at this time, and the opening and closing of the electrical appliance in the user' S home is determined by the implementation of the power instantaneous change in the total load.
5. A non-invasive demand response system according to claim 3, wherein the step S2.3 is to use a current change point at a moment of power transient increase as a positive transient point, a current change point at a moment of power transient decrease as a negative transient point, match the positive transient point and the negative transient point before the moment before the scheduling, and determine that the same appliance is turned off if the power transient increase of the positive transient point is close to the power transient decrease of the negative transient point, and determine that the appliance is not turned off if only the positive transient point exists.
6. The non-invasive demand response system according to claim 1, wherein the step S4 determines that the power control center (3.1) issues the command after the completion, the command is received by the carrier concentrator (1.3) and then converted into the HPLC power line carrier layer channel to continue issuing the trip command to the carrier circuit breaker (1.2), the carrier circuit breaker (1.2) receives the command of the HPLC power line layer, and when the communication address matches with itself, the command meaning is resolved and the command is executed.
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