A power management system based on big data

Abstract

The present invention is applicable to the technical field of power grid power management, and provides a power management system based on big data, which includes: multiple power management terminals, a power grid monitoring module, a distribution line monitoring module, and a communication module; the power consumption of users is counted through multiple power management terminals, the power grid monitoring module monitors the working status of household transformers, and the distribution line monitoring module obtains the transmission status of low-voltage distribution lines; and the communication module connects the power management terminal and the power grid monitoring module to a power management server on the Internet or a local area network for communication; thereby achieving big data acquisition through multiple power management terminals, power grid monitoring modules, and distribution line monitoring modules, and centralized management through the power management server, which greatly reduces the failure rate of the distribution network, and the administrator can timely obtain the failure status of the distribution network and perform timely repairs, which greatly improves the user's power consumption experience.

Description

Technical Field

[0001] The present invention belongs to the technical field of power grid power management, and in particular relates to a power management system based on big data. Background Art

[0002] The existing low-voltage power distribution devices in the power grid cannot be protected when overload or sudden increase in power load occurs, and often burn out, resulting in large-scale power outages. In addition, it is impossible to detect when phase loss, undervoltage, or leakage occurs in the distribution line; therefore, the existing power supply management system of the power grid can no longer meet people's usage needs. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a power management system based on big data, aiming to solve the problem that the distribution network frequently experiences power outages and poor user experience due to the inability of the prior art to provide a power management system based on big data.

[0004] The present invention provides a power management system based on big data, the system comprising:

[0005] Multiple power management terminals to count the power consumption of electrical appliances;

[0006] Power grid monitoring module, monitoring the working status of household transformers;

[0007] Distribution line monitoring module, to obtain the power transmission status of low-voltage distribution lines;

[0008] The communication module connects the power management terminal and the power grid monitoring module to a power management server on the Internet or a local area network for communication.

[0009] Furthermore, the power management terminal includes:

[0010] An electric energy metering unit, which counts the electric energy consumed by the power-consuming devices at the lower level of the electric energy management terminal;

[0011] A first communication unit performs wired communication with the communication module; the first communication unit is a power line carrier communication module;

[0012] A positioning unit for acquiring the position of the electric energy management terminal in real time; the positioning unit is a satellite positioning unit or a base station positioning unit;

[0013] The anti-disassembly unit is an electronic seal and an electronic seal identification unit corresponding to the electrical appliance seal, and when the electronic seal is damaged, the electronic seal identification unit is triggered to send out a disassembly alarm message;

[0014] The first communication unit sends the electric energy, the location of the electric energy management terminal, and the removal alarm information to the power management server through the communication module;

[0015] Furthermore, the power grid monitoring module includes:

[0016] A current detection unit, used to detect the output current of the household transformer;

[0017] A first voltage detection unit, used to detect a first voltage outputted by the household transformer;

[0018] A frequency detection unit, used to detect the output frequency of the household transformer;

[0019] A load calculation unit, which calculates the output power of the household transformer according to the output first voltage and the output current;

[0020] The working state of the household transformer includes: the output power of the household transformer, the output first voltage, the output current, and the output frequency.

[0021] Furthermore, the distribution line monitoring module is connected to the end of the low-voltage distribution line, and the distribution line monitoring module includes:

[0022] A phase-loss alarm unit detects the online status of the three live wires and the neutral wire of the low-voltage distribution line, and issues a phase-loss alarm message when any live wire or neutral wire is offline;

[0023] The second voltage detection unit detects the second voltage on the three live wires of the low-voltage distribution line based on the neutral wire of the low-voltage distribution line, and issues an undervoltage alarm message or an overvoltage alarm message when the second voltage of any live wire and the neutral wire of the low-voltage distribution line does not conform to the rated voltage range.

[0024] A second communication unit is used to send the phase loss alarm information or the overvoltage alarm information and the undervoltage alarm information to the power management server; the second communication unit is a GPRS communication module, and the GPRS communication module is connected to the power management server for communication;

[0025] The power supply of the phase-loss alarm unit, the second voltage detection unit and the second communication unit is obtained from the low-voltage distribution line;

[0026] The storage battery provides uninterrupted emergency power supply to the phase loss alarm unit, the second voltage detection unit and the second communication unit.

[0027] Preferably, when the output power of the household transformer exceeds the rated output power, the power management server controls the standby household transformer to start, and the standby household transformer is connected in parallel with the household transformer to provide power supply to the user.

[0028] Further preferably, before the power management server controls the start-up of the standby household transformer, it confirms whether the phase loss alarm information or the overvoltage alarm information sent by the distribution line monitoring module is received. When the phase loss alarm information or the overvoltage alarm information is received, the start-up of the standby household transformer is prohibited, otherwise it is allowed.

[0029] Further preferably, before allowing the standby household transformer to start, the method further includes:

[0030] Transmitting electric energy to the standby household transformer or increasing the transmitted electric power;

[0031] Transmitting electric energy to the standby household transformer or increasing the transmitted electric power includes: controlling the power plant to provide power generation.

[0032] Preferably, when the output frequency does not conform to the rated frequency range, the power management server sends a frequency modulation instruction to the power plant accordingly, so that the output frequency remains within the rated frequency range.

[0033] Further preferably, the power management server further comprises: calculating the electric energy output by the household transformer according to the output power of the household transformer;

[0034] The method further comprises: calculating the total electric energy of the plurality of electric energy management terminals, and obtaining the line loss of the low-voltage distribution line by subtracting the total electric energy of the plurality of electric energy management terminals from the electric energy output by the household transformer;

[0035] When the line loss of the low-voltage distribution line exceeds the line resistance loss of the low-voltage distribution line, an abnormal power consumption alarm message is issued accordingly.

[0036] Further preferably, the power management server sends the abnormal power consumption alarm information to a handheld terminal of a power manager in the area to which the low-voltage distribution line belongs;

[0037] When the power management server detects that it is unable to communicate with the power management terminal, it sends a power management terminal offline alarm message to the handheld terminal of the power manager in the area to which the power management terminal belongs;

[0038] The offline alarm information of the power management terminal includes: the offline time of the power management terminal and the location of the power management terminal before the offline;

[0039] When the power management server receives the dismantling alarm information, it sends the power management terminal dismantling alarm information to the handheld terminal of the power manager of the area to which the power management terminal that issued the dismantling alarm information belongs;

[0040] The alarm information of the power management terminal being dismantled includes: the time when the power management terminal was dismantled and the location of the power management terminal before being dismantled;

[0041] When the power management server receives the overvoltage alarm information, it controls the household transformer or the standby household transformer to stop working;

[0042] The power management server sends the phase loss alarm information or the overvoltage alarm information and the undervoltage alarm information to a handheld terminal of a power administrator in the area to which the low-voltage distribution line belongs;

[0043] The beneficial effects of the present invention are as follows: users' electricity consumption is counted through multiple power management terminals, the power grid monitoring module monitors the working status of household transformers, the distribution line monitoring module obtains the transmission status of low-voltage distribution lines; and the communication module connects the power management terminal and the power grid monitoring module to the power management server on the Internet or local area network for communication; thereby achieving the acquisition of big data through multiple power management terminals, power grid monitoring modules and distribution line monitoring modules, and centralized management through the power management server, which greatly reduces the failure rate of the distribution network, enables administrators to obtain the failure status of the distribution network in a timely manner and make timely repairs, and greatly improves the user's power consumption experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the power distribution structure of the power management system based on big data provided by a preferred embodiment of the present invention;

[0045] Figure 2 It is a schematic diagram of the communication structure of a power management system based on big data provided by a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments:

[0048] Figure 1 The power distribution structure of the power management system based on big data provided by the preferred embodiment of the present invention is shown. For the convenience of description, only the part related to the embodiment of the present invention is shown, including:

[0049] A plurality of power management terminals 100 for counting power consumption of electrical appliances 101;

[0050] The power grid monitoring module 200 monitors the working status of the household transformer 001;

[0051] The distribution line monitoring module 300 obtains the power transmission status of the low-voltage distribution line; wherein the low-voltage distribution line is a three-phase four-wire;

[0052] The communication module 400 connects the power management terminal 100 and the power grid monitoring module 200 to the power management server 500 on the Internet or the local area network for communication, wherein the communication module 400 uses GPRS or WiFi technology to communicate with the power management server 500 on the Internet or the local area network.

[0053] Furthermore, the power management terminal 100 includes:

[0054] The electric energy metering unit 101 is used to count the electric energy consumed by the power-consuming devices under the electric energy management terminal 100; wherein the electric energy is kilowatts per hour;

[0055] The first communication unit 102 performs wired communication with the communication module 400; the first communication unit 102 is a power line carrier communication module 400; using the power line carrier communication module 400 for communication reduces wiring, and the signal transmission is stable and is not affected by environmental interference;

[0056] A positioning unit 103 is used to obtain the position of the power management terminal 100 in real time; the positioning unit 103 is a satellite positioning unit 103 or a base station positioning unit 103; so as to prevent the power management terminal 100 from being stolen;

[0057] The anti-disassembly unit 104 is an electronic seal and an electronic seal identification unit corresponding to the electrical seal. When the electronic seal is damaged, the electronic seal identification unit is triggered to send a disassembly alarm message to prevent malicious disassembly of the power management terminal 100 to tamper with and steal electricity.

[0058] The first communication unit 102 sends the electric energy, the location of the electric energy management terminal 100, and the disassembly alarm information to the power management server 500 through the communication module 400, thereby realizing the acquisition of big data.

[0059] Furthermore, the power grid monitoring module 200 includes:

[0060] The current detection unit 201 is used to detect the output current of the household transformer 001;

[0061] A first voltage detection unit 202, used to detect a first voltage outputted by the household transformer 001;

[0062] A frequency detection unit 203, used to detect the output frequency of the household transformer 001;

[0063] A load calculation unit 204 calculates the output power of the household transformer 001 according to the output first voltage and the output current;

[0064] The working state of the household transformer 001 includes: the output power of the household transformer 001, the output first voltage, the output current, and the output frequency; and the working state of the household transformer 001 is acquired in real time.

[0065] Furthermore, the distribution line monitoring module 300 is connected to the end of the low-voltage distribution line, and the distribution line monitoring module 300 includes:

[0066] The phase-loss alarm unit 301 detects the online status of the three live wires and the neutral wire of the low-voltage distribution line, and issues a phase-loss alarm message when any live wire or neutral wire is offline;

[0067] The second voltage detection unit 302 detects the second voltage on the three live wires of the low-voltage distribution line based on the neutral wire of the low-voltage distribution line, and issues an undervoltage alarm message or an overvoltage alarm message when the second voltage of any live wire and the neutral wire of the low-voltage distribution line does not conform to the rated voltage range, so as to obtain the operating status of the low-voltage distribution line in real time;

[0068] The second communication unit 303 sends the phase loss alarm information or the overvoltage alarm information and the undervoltage alarm information to the power management server 500; the second communication unit 303 is a GPRS communication module 400, and the GPRS communication module 400 is connected to the power management server 500 for communication;

[0069] The power supply of the phase-loss alarm unit 301, the second voltage detection unit 302 and the second communication unit 303 are all obtained from the low-voltage distribution line;

[0070] The storage battery 304 provides uninterrupted emergency power supply for the phase loss alarm unit 301, the second voltage detection unit 302 and the second communication unit 303, and meets the use requirements.

[0071] Figure 2 The communication structure of the power management system based on big data provided by the preferred embodiment of the present invention is shown. For the convenience of description, only the part related to the embodiment of the present invention is shown, wherein:

[0072] When the output power of the household transformer 001 exceeds the rated output power, the power management server 500 controls the standby household transformer 001 to start, and the standby household transformer 001 is connected in parallel with the household transformer 001 to provide power supply to the user, thereby preventing the household transformer 001 from being overloaded and burned.

[0073] Further preferably, before the power management server 500 controls the start-up of the standby household transformer 001, it confirms whether the phase loss alarm information or the overvoltage alarm information sent by the distribution line monitoring module 300 is received. When the phase loss alarm information or the overvoltage alarm information is received, the start-up of the standby household transformer 001 is prohibited, otherwise it is allowed, thereby avoiding the start-up of the standby household transformer 001 due to short circuit or leakage overload.

[0074] Further preferably, before allowing the standby household transformer 001 to start, the method further includes:

[0075] Transmitting electric energy to the standby household transformer 001 or increasing the transmitted electric power;

[0076] Transmitting electric energy to the standby household transformer 001 or increasing the transmitted electric power includes: controlling the power plant to provide power generation; and meeting electricity demand.

[0077] Preferably, when the output frequency does not match the rated frequency range, the power management server 500 sends a frequency modulation instruction to the power plant to keep the output frequency within the rated frequency range, thereby avoiding affecting the normal use of electrical equipment due to frequency fluctuations and even causing safety accidents.

[0078] Further preferably, the power management server 500 further includes: calculating the electric energy output by the household transformer 001 according to the output power of the household transformer 001;

[0079] It also includes: calculating the total electric energy of the plurality of electric energy management terminals 100, and obtaining the line loss of the low-voltage distribution line by subtracting the total electric energy of the plurality of electric energy management terminals 100 from the electric energy output by the household transformer 001;

[0080] When the line loss of the low-voltage distribution line exceeds the line resistance loss of the low-voltage distribution line, an abnormal power consumption alarm message is issued accordingly.

[0081] Further preferably, the power management server 500 sends the abnormal power consumption alarm information to a handheld terminal of a power manager in the area to which the low-voltage distribution line belongs;

[0082] When the power management server 500 detects that it cannot communicate with the power management terminal 100, it sends an offline alarm message of the power management terminal 100 to the handheld terminal of the power manager in the area to which the power management terminal 100 belongs;

[0083] The offline alarm information of the power management terminal 100 includes: the offline time of the power management terminal 100 and the location of the power management terminal 100 before the offline;

[0084] When the power management server 500 receives the dismantling alarm information, it sends the dismantling alarm information of the power management terminal 100 to the handheld terminal of the power administrator in the area to which the power management terminal 100 that issued the dismantling alarm information belongs;

[0085] The alarm information of the power management terminal 100 being dismantled includes: the time when the power management terminal 100 is dismantled and the location of the power management terminal 100 before being dismantled;

[0086] When the power management server 500 receives the overvoltage alarm information, it controls the household transformer 001 or the standby household transformer 001 to stop working;

[0087] The power management server 500 sends the phase loss alarm information or the overvoltage alarm information and the undervoltage alarm information to the handheld terminal of the power administrator in the area where the low-voltage distribution line belongs, so that the power administrator can obtain the operating status of the power grid in time to take corresponding measures.

[0088] In an embodiment of the present invention, multiple power management terminals 100 are used to count the user's power consumption, the power grid monitoring module 200 monitors the working status of the household transformer 001, the distribution line monitoring module 300 obtains the transmission status of the low-voltage distribution line; and the communication module 400 connects the power management terminal 100 and the power grid monitoring module 200 to the power management server 500 on the Internet or the local area network for communication; thereby achieving the acquisition of big data through multiple power management terminals 100, the power grid monitoring module 200 and the distribution line monitoring module 300, and centralized management through the power management server 500, which greatly reduces the failure rate of the distribution network, and the administrator can obtain the fault situation of the distribution network in time and make timely repairs, which greatly improves the user's power consumption experience.

[0089] In an embodiment of the present invention, each unit of the big data-based power management system can be implemented by a corresponding hardware or software unit. Each unit can be an independent software or hardware unit or integrated into one software or hardware unit, which is not intended to limit the present invention.

[0090] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can exist in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer electronic device (which can be a personal computer, a server, or a network electronic device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0091] Conditional language such as "can," "can," "might," or "may," among other things, unless specifically stated otherwise or otherwise understood within the context as used, is generally intended to convey that particular embodiments can include (while other embodiments do not) particular features, elements, and / or operations. Thus, such conditional language is generally not intended to imply that features, elements, and / or operations are in any way required for one or more embodiments or that one or more embodiments must include logic for determining whether such features, elements, and / or operations are included or will be performed in any particular embodiment, with or without student input or prompting.

[0092] What has been described herein in this specification and the accompanying drawings includes examples that can provide a power management system based on big data. Of course, it is not possible to describe every conceivable combination of elements and / or methods for the purpose of describing the various features of the present disclosure, but it can be recognized that many other combinations and permutations of the disclosed features are possible. Therefore, it is obvious that various modifications can be made to the present disclosure without departing from the scope or spirit of the present disclosure. In addition, or in the alternative, other embodiments of the present disclosure may be apparent from consideration of this specification and the accompanying drawings and from the practice of the present disclosure as presented herein. It is intended that the examples set forth in this specification and the accompanying drawings are considered to be illustrative and not restrictive in all respects. Although specific terms are employed herein, they are used in a general and descriptive sense and are not used for limiting purposes.

Claims

1. A power management system based on big data, characterized in that: The system comprises: Multiple power management terminals to count the power consumption of electrical appliances; Power grid monitoring module, monitoring the working status of household transformers; Distribution line monitoring module, to obtain the power transmission status of low-voltage distribution lines; A communication module, which connects the power management terminal and the power grid monitoring module to a power management server on the Internet or a local area network for communication; The power grid monitoring module comprises: A current detection unit, used to detect the output current of the household transformer; A first voltage detection unit, used to detect a first voltage outputted by the household transformer; A frequency detection unit, used to detect the output frequency of the household transformer; A load calculation unit, which calculates the output power of the household transformer according to the output first voltage and the output current; The working state of the household transformer includes: the output power of the household transformer, the output first voltage, the output current, and the output frequency; The distribution line monitoring module is connected to the end of the low-voltage distribution line, and the distribution line monitoring module includes: A phase-loss alarm unit detects the online status of the three live wires and the neutral wire of the low-voltage distribution line, and issues a phase-loss alarm message when any live wire or neutral wire is offline; A second voltage detection unit detects the second voltages on the three live wires of the low-voltage distribution line based on the neutral wire of the low-voltage distribution line, and issues an undervoltage alarm message or an overvoltage alarm message when the second voltages of any live wire and the neutral wire of the low-voltage distribution line do not conform to the rated voltage range; A second communication unit is used to send the phase loss alarm information or the overvoltage alarm information and the undervoltage alarm information to the power management server; the second communication unit is a GPRS communication module, and the GPRS communication module is connected to the power management server for communication; The power supply of the phase-loss alarm unit, the second voltage detection unit and the second communication unit is obtained from the low-voltage distribution line; A storage battery, providing uninterrupted emergency power supply to the phase loss alarm unit, the second voltage detection unit and the second communication unit; When the output power of the household transformer exceeds the rated output power, the power management server controls the standby household transformer to start, and the standby household transformer is connected in parallel with the household transformer to provide power supply to the user; Before the power management server controls the startup of the standby household transformer, it confirms whether the phase loss alarm information or the overvoltage alarm information sent by the distribution line monitoring module is received. When the phase loss alarm information or the overvoltage alarm information is received, the startup of the standby household transformer is prohibited, otherwise it is allowed.

2. The system according to claim 1, characterized in that The electric energy management terminal comprises: An electric energy metering unit, which counts the electric energy consumed by the power-consuming devices at the lower level of the electric energy management terminal; A first communication unit performs wired communication with the communication module; the first communication unit is a power line carrier communication module; A positioning unit for acquiring the position of the electric energy management terminal in real time; the positioning unit is a satellite positioning unit or a base station positioning unit; The anti-disassembly unit is an electronic seal and an electronic seal identification unit corresponding to the electronic seal, and when the electronic seal is damaged, the electronic seal identification unit is triggered to send out a disassembly alarm message; The first communication unit sends the electric energy, the location of the electric energy management terminal, and the removal alarm information to the power management server through the communication module.

3. The system according to claim 1, characterized in that Before allowing the standby household transformer to start, the following steps are also included: Transmitting electric energy to the standby household transformer or increasing the transmitted electric power; Transmitting electric energy to the standby household transformer or increasing the transmitted electric power includes: controlling the power plant to provide power generation.

4. The system according to claim 1, characterized in that When the output frequency does not conform to the rated frequency range, the power management server sends a frequency adjustment instruction to the power plant to keep the output frequency within the rated frequency range.

5. The system according to claim 1, wherein: The power management server further includes: calculating the electric energy output by the household transformer according to the output power of the household transformer; The method further comprises: calculating the total electric energy of the plurality of electric energy management terminals, and obtaining the line loss of the low-voltage distribution line by subtracting the total electric energy of the plurality of electric energy management terminals from the electric energy output by the household transformer; When the line loss of the low-voltage distribution line exceeds the line resistance loss of the low-voltage distribution line, an abnormal power consumption alarm message is issued accordingly.

6. The system according to claim 5, characterized in that The power management server sends the abnormal power consumption alarm information to the handheld terminal of the power administrator in the area to which the low-voltage distribution line belongs; When the power management server detects that it is unable to communicate with the power management terminal, it sends a power management terminal offline alarm message to the handheld terminal of the power manager in the area to which the power management terminal belongs; The offline alarm information of the power management terminal includes: the offline time of the power management terminal and the location of the power management terminal before the offline; When the power management server receives the dismantling alarm information, it sends the power management terminal dismantling alarm information to the handheld terminal of the power manager in the area to which the power management terminal that sent the dismantling alarm information belongs; The alarm information of the power management terminal being dismantled includes: the time when the power management terminal was dismantled and the location of the power management terminal before being dismantled; When the power management server receives the overvoltage alarm information, it controls the household transformer or the standby household transformer to stop working; The power management server sends the phase loss alarm information or the overvoltage alarm information and the undervoltage alarm information to a handheld terminal of a power manager in the area to which the low-voltage distribution line belongs.

Images