CN112433089A - Adjustable mobile energy consumption monitoring device and monitoring method - Google Patents

Adjustable mobile energy consumption monitoring device and monitoring method Download PDF

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Publication number
CN112433089A
CN112433089A CN202011102332.2A CN202011102332A CN112433089A CN 112433089 A CN112433089 A CN 112433089A CN 202011102332 A CN202011102332 A CN 202011102332A CN 112433089 A CN112433089 A CN 112433089A
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phase
electricity
unit
power
consumption
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林巍然
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Fujian Weili Energy Technology Co ltd
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Fujian Weili Energy Technology Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/006—Measuring power factor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/001—Measuring real or reactive component; Measuring apparent energy
    • G01R21/002—Measuring real component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/001—Measuring real or reactive component; Measuring apparent energy
    • G01R21/003—Measuring reactive component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • G01R21/1331—Measuring real or reactive component, measuring apparent energy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention is suitable for the technical field of electric power parameter acquisition, and provides an energy consumption monitoring method, which comprises the following steps: obtaining phase voltage and phase current of the monitored load in unit time and phase difference of the phase voltage and the phase current, and calculating an electrical parameter according to the phase voltage, the phase current and the phase difference; storing the electrical parameters or sending the electrical parameters to a remote server or a mobile terminal; further sending out an alarm prompt according to the electrical parameters; the electric parameters comprise active power, reactive power, the electricity consumption of single-phase electricity, the electricity consumption of symmetrical load three-phase electricity and the electricity consumption of asymmetrical load three-phase electricity, which are calculated according to phase voltage, phase current and phase difference; the accurate calculation of the power consumption of three-phase electricity is improved, and the power consumption collection of single-phase electricity is also considered; therefore, the applicability is improved, and the user experience is further improved.

Description

Adjustable mobile energy consumption monitoring device and monitoring method
Technical Field
The invention belongs to the technical field of electric power parameter acquisition, and particularly relates to an adjustable movable energy consumption monitoring device and method.
Background
Energy-saving technical improvement and waste heat power generation projects are carried out in a contract energy management mode which is always promoted by the national development and improvement committee, the problem of energy-saving rate calibration exists for a long time, the dissimilarity between an energy user and a sponsor is great, and once energy-saving arbitration is required, the actual energy-saving calibration is difficult due to the lack of technologies and equipment. The calibration of the actual energy saving rate is complicated because the working conditions are changed, for example, the steam production of a boiler can be from 30t/h to 75t/h, the energy saving rate is lower as the load is heavier in the normal condition, the energy used after the energy saving technology is changed can not be used for explaining the energy saving, but the total energy saving amount can be relatively accurately calculated only by knowing how much time different loads are respectively operated and contrasting the energy saving rates of different loads calibrated by the two parties.
At present, domestic energy collection terminals are mainly classified into three types:
the first type: the electric energy data acquisition terminal for the remote automatic meter reading of the electric power part comprises active power, reactive power, a load curve, and can also acquire harmonic signals and the like, has complete functions, but has single use and can only acquire the electric energy signals. The communication modes comprise low-voltage power carrier waves, networks, 485, 232, infrared, GPRS and the like, but the low-voltage power carrier waves cause serious pollution to domestic power grids, and the communication success rate cannot break through 95 percent all the time.
The second type: based on a data acquisition RTU (remote terminal unit), only instantaneous signals of the semaphore, such as voltage, current, temperature, pressure, flow, etc., can be acquired, and an accumulated signal and load curve cannot be formed, which is not a data acquisition terminal for energy signals. The energy signal must have the accumulative volume signal, so can only solve through host computer software based on the energy data accumulation of this type of scheme, because reasons such as data transmission failure can lead to data loss, the security of host computer also can lead to data loss, and the energy format of formation is eight flowers, and the department of being not convenient for functions acquires and manages.
In the third category: the data transfer terminal collects any signals such as energy by means of the intelligent instrument, and the collection terminal only conducts transferring and collecting functions through a 485 iso-convention.
Because the controller, the monitoring system, the control system and the like have various brands and have extremely large difference in definition and structure, although data can be sent to the remote monitoring system and the cloud platform through various channels, the data definition and the format are varied, the data have standards and are not universal, the remote monitoring system and the cloud platform must be processed in a personalized way, qualified functional departments need to adapt to different systems and data formats, and the data processing efficiency is low and the cost is high.
Therefore, the above defects existing in the prior art are actually needed to be researched, so that a scheme is provided, the problems that the defects existing in the prior art are overcome, the data types provided by the energy efficiency acquisition terminals in the prior art are not uniform, the data are required to be uploaded to an upper computer to be processed and then become standard energy data, the system data are unreasonable, and the processing efficiency is low are solved.
Disclosure of Invention
The invention aims to provide an adjustable movable energy consumption monitoring device and an adjustable movable energy consumption monitoring method, and aims to solve the problems that the prior art cannot provide an energy consumption monitoring method, so that the power parameter acquisition precision is low, single-phase power and three-phase power cannot be acquired simultaneously, and the user experience is poor.
In one aspect, the present invention provides a method for monitoring energy consumption, the method comprising the steps of:
obtaining phase voltage and phase current of a monitored load in unit time and phase difference of the phase voltage and the phase current, and calculating an electrical parameter according to the phase voltage, the phase current and the phase difference;
storing the electrical parameters or sending the electrical parameters to a remote server or a mobile terminal;
and sending out an alarm prompt according to the electrical parameter.
Further, calculating active power according to the phase voltage and the phase current, wherein the active power is obtained according to a formula 1;
equation 1: p = UICOSPhi, where P is the active power, U is the phase voltage, I is the phase current, cos is the cosine, phi is the phase difference,COSphi is the load power factor.
Further, calculating reactive power according to the phase voltage and the phase current, wherein the reactive power is obtained according to a formula 2;
equation 2: q = UIsinPhi where Q is reactive power and sin is sine.
Further, calculating the power consumption of single-phase electricity according to the phase voltage and the phase current, wherein the power consumption of the single-phase electricity is obtained according to a formula 3;
equation 3: KWh = UIh, wherein h is the unit time.
Further, the active power of the three-phase power of the symmetrical load is obtained according to a formula 4, the reactive power of the three-phase power of the symmetrical load is obtained according to a formula 5, and the power consumption of the three-phase power of the symmetrical load is obtained according to a formula 6;
equation 4: p3=√3UIIICOSPhi, wherein UIIs line voltage, IIFor line current, P3Active power of three-phase electricity of a symmetrical load; equation 5: q3=√3UIIIsinPhi, wherein Q3Reactive power of three-phase power of a symmetrical load; equation 6: KWh3=P3KWh+Q3KWh; wherein, KWh3The power consumption of three-phase electricity is symmetrically loaded; p3KWh=P3h，P3KWh is active electric energy; q3KWh=Q3h，Q3KWh is reactive power.
Further, the power consumption of the asymmetric load three-phase power = a-phase active power consumption + B-phase active power consumption + C-phase active power consumption + a-phase reactive power consumption + B-phase reactive power consumption + C-phase reactive power consumption.
Further preferably, before obtaining the power consumption of the three-phase power of the asymmetric load, obtaining phase active power consumption and phase inactive power consumption;
the phase active power consumption is obtained according to a formula PKWh = Ph, wherein PKWh is the phase active power consumption; the phase reactive power consumption is obtained according to a formula QKWh = Qh, where QKWh is the phase reactive power consumption.
Further, the electric parameters comprise the active power, the power factor, the reactive power, the electricity consumption of the single-phase electricity, the active power and the reactive power of the symmetrical load three-phase electricity, the phase active electricity consumption and the phase reactive electricity consumption, and the electricity consumption of the asymmetrical load three-phase electricity;
the method further comprises the following steps: presetting an alarm trigger value of one or more parameters in the electrical parameters, and sending out the corresponding alarm prompt when the one or more parameters in the electrical parameters reach the corresponding alarm trigger value;
and displaying one or more of the electrical parameters;
and sending the electrical parameters to the remote server or to the mobile terminal using wired or wireless means;
the electrical parameters also comprise the acquired electrical frequency of the phase A, the phase B and the phase C;
and displaying the electrical frequency of the A phase, the B phase and the C phase.
In another aspect, the present invention provides an adjustable mobile energy consumption monitoring device, comprising:
the wireless communication unit is used for carrying out wireless communication with a remote server or a mobile terminal;
the wired communication unit is used for carrying out wired communication with a remote server or a mobile terminal;
the current monitoring unit is used for monitoring the phase current of single-phase electricity or the phase currents and the line currents of the A phase, the B phase and the C phase of three-phase electricity;
the voltage monitoring unit is used for monitoring phase voltage of single-phase electricity or phase voltage and line voltage of A phase, B phase and C phase of three-phase electricity;
the electric frequency monitoring unit is used for monitoring the electric frequency of single-phase electricity or the electric frequency of A phase, B phase and C phase of three-phase electricity;
the analog-to-digital conversion unit is used for converting analog signals output by the current monitoring unit and the voltage monitoring unit or the electrical frequency monitoring unit into digital signals;
the processing unit is used for carrying out corresponding processing according to the digital signals output by the analog-to-digital conversion unit to generate electrical parameters;
the setting unit is used for forcibly setting a load power factor and presetting an alarm trigger value of one or more parameters in the electrical parameters;
the adjusting unit is used for correcting and adjusting basic parameters of the voltage monitoring unit, the current monitoring unit and the electrical frequency monitoring unit;
a display unit for displaying the electrical parameter;
the alarm unit is used for sending out corresponding alarm prompt when one or more parameters in the electrical parameters reach corresponding alarm trigger values;
the positioning unit is used for performing satellite positioning and base station positioning on the adjustable mobile energy consumption monitoring device;
the standby battery is used for providing power supply after the power supply of the power grid is cut off by the adjustable mobile energy consumption monitoring device;
the wired communication unit comprises an RS485 communication unit, an RS232 communication unit, an I2C communication unit, a TTL communication unit, an Ethernet communication unit and a power line carrier communication unit;
the wireless communication unit comprises a WiFi communication unit, a Bluetooth communication unit and a GPRS communication unit;
the satellite positioning unit comprises a base station positioning unit and a satellite positioning unit;
the alarm unit is also used for sending out corresponding alarm prompt when the position of the adjustable movable energy consumption monitoring device deviates from the initial position, and sending out corresponding alarm prompt after the adjustable movable energy consumption monitoring device is disconnected from the power grid.
In another aspect, the present invention further provides an adjustable mobile energy consumption monitoring device, comprising at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the above-described energy consumption monitoring method.
Compared with the prior art, the invention has the beneficial effects that:
the method comprises the steps of obtaining phase voltage and phase current of a monitored load in unit time and phase difference of the phase voltage and the phase current, and calculating an electrical parameter according to the phase voltage, the phase current and the phase difference; storing the electrical parameters or sending the electrical parameters to a remote server or a mobile terminal; further sending out an alarm prompt according to the electrical parameters; the electric parameters comprise active power, reactive power, the electricity consumption of single-phase electricity, the electricity consumption of symmetrical load three-phase electricity and the electricity consumption of asymmetrical load three-phase electricity, which are calculated according to phase voltage, phase current and phase difference; the accurate calculation of the power consumption of three-phase electricity is improved, and the power consumption collection of single-phase electricity is also considered; therefore, the applicability is improved, and the user experience is further improved.
Drawings
Fig. 1 is a flowchart of an implementation of a method for monitoring energy consumption according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an adjustable mobile energy consumption monitoring apparatus according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an adjustable mobile energy consumption monitoring device according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Please refer to fig. 1-3:
the first embodiment is as follows:
fig. 1 shows an implementation flow of an energy consumption monitoring method provided in a first embodiment of the present invention, and for convenience of description, only the parts related to the first embodiment of the present invention are shown, which are detailed as follows:
in step S101, a phase voltage and a phase current of the monitored load per unit time and a phase difference between the phase voltage and the phase current are acquired.
In step S102, an electrical parameter is calculated from the phase voltage, the phase current, and the phase difference;
in the embodiment of the invention, the active power is calculated according to the phase voltage and the phase current, and the active power is obtained according to a formula 1;
equation 1: p = UICOSPhi, where P is the active power, U is the phase voltage, I is the phase current, cos is the cosine, phi is the phase difference,COSphi is the load power factor.
Further, reactive power is calculated according to the phase voltage and the phase current, and the reactive power is obtained according to a formula 2;
equation 2: q = UIsinPhi where Q is reactive power and sin is sine.
Further, the power consumption of the single-phase electricity is calculated according to the phase voltage and the phase current, and the power consumption of the single-phase electricity is obtained according to a formula 3;
equation 3: KWh = UIh, where h is a unit time.
Further, the active power of the three-phase power of the symmetrical load is obtained according to a formula 4, the reactive power is obtained according to a formula 5, and the power consumption of the three-phase power of the symmetrical load is obtained according to a formula 6;
equation 4: p3=√3UIIICOSPhi, wherein UIIs line voltage, IIFor line current, P3Active power of three-phase electricity of a symmetrical load; equation 5: q3=√3UIIIsinPhi, wherein Q3Reactive power of three-phase power of a symmetrical load; equation 6: KWh3=P3KWh+Q3KWh; wherein, KWh3The power consumption of three-phase electricity is symmetrically loaded; p3KWh=P3h，P3KWh is active electric energy; q3KWh=Q3h，Q3KWh is reactive power.
Further, the power consumption of the asymmetric load three-phase power = a-phase active power consumption + B-phase active power consumption + C-phase active power consumption + a-phase reactive power consumption + B-phase reactive power consumption + C-phase reactive power consumption.
Further preferably, the method further comprises the steps of obtaining phase active power consumption and phase inactive power consumption before obtaining the power consumption of the three-phase power of the asymmetric load;
the phase active power consumption is obtained according to a formula PKWh = Ph, wherein PKWh is the phase active power consumption; the phase reactive power consumption is obtained according to the formula QKWh = Qh, where QKWh is the phase reactive power consumption.
In step S103, storing or sending the electrical parameters to a remote server or a mobile terminal;
in the embodiment of the invention, the electric parameters comprise the active power, the power factor, the reactive power, the electricity consumption of single-phase electricity, the active power and the reactive power of symmetrical load three-phase electricity, the phase active electricity consumption and the phase reactive electricity consumption and the electricity consumption of asymmetrical load three-phase electricity; the electrical parameters also comprise the electrical frequency of the phase A, the phase B and the phase C; displaying the electrical frequency of the phase A, the phase B and the phase C;
further, the electrical parameters are sent to a remote server or a mobile terminal in a wired or wireless manner;
it is further preferred that one or more of the electrical parameters are displayed, wherein the display may be in the form of numbers, graphs, statistical figures, graphs, and the like.
In step S104, sending out an alarm prompt according to the electrical parameter;
in the embodiment of the present invention, it is further preferable that the alarm trigger values of one or more of the electrical parameters are preset, and when the one or more of the electrical parameters reach the corresponding alarm trigger values, the corresponding alarm prompt is issued.
Example two:
fig. 2 shows a structure of an adjustable mobile energy consumption monitoring device according to a second embodiment of the present invention, and for convenience of description, only the parts related to the second embodiment of the present invention are shown, which are detailed as follows:
a wireless communication unit 101 for performing wireless communication with a remote server or with a mobile terminal;
a wired communication unit 102 for performing wired communication with a remote server or with a mobile terminal;
a current monitoring unit 201 for monitoring the phase current of the single-phase power or the phase currents and the line currents of the A phase, the B phase and the C phase of the three-phase power;
the voltage monitoring unit 202 is used for monitoring phase voltage of single-phase electricity or phase voltage and line voltage of A phase, B phase and C phase of three-phase electricity;
the electric frequency monitoring unit 203 is used for monitoring the electric frequency of single-phase electricity or the electric frequency of A phase, B phase and C phase of three-phase electricity;
an analog-to-digital conversion unit 301, configured to convert analog signals output by the current monitoring unit and the voltage monitoring unit or the electrical frequency monitoring unit into digital signals;
the processing unit 401 is configured to perform corresponding processing according to the digital signal output by the analog-to-digital conversion unit to generate an electrical parameter; the electric parameters comprise the active power, the power factor, the reactive power, the electricity consumption of single-phase electricity, the active power and the reactive power of symmetrical load three-phase electricity, the phase active electricity consumption and the phase reactive electricity consumption and the electricity consumption of asymmetrical load three-phase electricity; the electrical parameters also comprise the electrical frequency of the phase A, the phase B and the phase C; displaying the electrical frequency of the phase A, the phase B and the phase C; further, the processing unit 401 has an analog-to-digital conversion function, so that the analog-to-digital conversion unit 301 can be omitted;
a setting unit 501, configured to forcibly set an alarm trigger value of one or more parameters of a load power factor and a preset electrical parameter;
the adjusting unit 502 is used for correcting and adjusting basic parameters of the voltage monitoring unit, the current monitoring unit and the electrical frequency monitoring unit;
a display unit 601 for displaying electrical parameters;
the alarm unit 701 is used for sending out corresponding alarm reminding when one or more parameters in the electrical parameters reach corresponding alarm trigger values;
a positioning unit 801, configured to perform satellite positioning and base station positioning on the adjustable mobile energy consumption monitoring device;
the standby battery 901 is used for providing power supply after the adjustable mobile energy consumption monitoring device is disconnected from the power supply of the power grid; the remote management personnel can conveniently obtain the field information in time;
further preferably, the wired communication unit includes an RS485 communication unit (not shown), an RS232 communication unit (not shown), an I2C communication unit (not shown), a TTL communication unit (not shown), an ethernet communication unit (not shown), a power line carrier communication unit (not shown), and the like; to accommodate different applicable requirements;
further preferably, the wireless communication unit includes a WiFi communication unit (not shown), a bluetooth communication unit (not shown), a GPRS communication unit (not shown), and the like; to accommodate different applicable requirements;
further preferably, the satellite positioning unit comprises a base station positioning unit and a satellite positioning unit;
furthermore, the alarm unit is also used for sending out a corresponding alarm prompt when the position of the adjustable mobile energy consumption monitoring device deviates from the initial position, and sending out a corresponding alarm prompt after the adjustable mobile energy consumption monitoring device is disconnected from the power grid; and theft prevention is realized.
In the embodiment of the present invention, each unit of the adjustable mobile energy consumption monitoring apparatus may be implemented by a corresponding hardware or software unit, and each unit may be an independent software or hardware unit, or may be integrated into a software or hardware unit, which is not limited herein.
Example three:
fig. 3 shows a structure of an adjustable mobile energy consumption monitoring device provided by a third embodiment of the present invention, and for convenience of description, only the parts related to the third embodiment of the present invention are shown.
The adjustable mobile energy consumption monitoring equipment provided by the embodiment of the invention comprises:
one or more processors 110 and a memory 120, where one processor 110 is illustrated in fig. 3, the processor 110 and the memory 120 may be connected by a bus or other means, and the connection by the bus is illustrated in fig. 3.
Processor 110 is operative to implement various control logic for device 10, which may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), a single chip microcomputer, an ARM (Acorn RISC machine) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. Also, the processor 110 may be any conventional processor, microprocessor, or state machine. Processor 110 may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
The memory 120, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions corresponding to the energy consumption monitoring method in the embodiments of the present invention. The processor 110 executes various functional applications and data processing of the device 10 by executing nonvolatile software programs, instructions and units stored in the memory 120, namely, implements the energy consumption monitoring method in the above method embodiment.
The memory 120 may include a storage program area and a storage data area, wherein the storage program area may store an application program required to operate the device, at least one function; the storage data area may store data created according to the use of the device 10, and the like. Further, the memory 120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 120 optionally includes memory located remotely from processor 110, which may be connected to device 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more units are stored in the memory 120, which when executed by the one or more processors 110, perform the energy consumption monitoring method in any of the above-described method embodiments, e.g. performing the above-described method steps S101 to S104 in fig. 1.
Example four:
a fourth embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer-executable instructions for execution by one or more processors, for example, to perform steps S101 to S104 of the method of fig. 1 described above.
By way of example, non-volatile storage media can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), electrically erasable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in many forms such as Synchronous RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The disclosed memory components or memory of the operating environment described herein are intended to comprise one or more of these and/or any other suitable types of memory.
Example five:
fifth embodiment of the present invention provides a computer program product, where the computer program product includes a computer program stored on a non-volatile computer-readable storage medium, and the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is caused to execute the energy consumption monitoring method of the above method embodiment. For example, the method steps S101 to S104 in fig. 1 described above are performed.
The above-described embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that the embodiments may be implemented by software plus a general hardware platform, and may also be implemented by hardware. With this in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer electronic device (which may be a personal computer, a server, or a network electronic device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
Conditional language such as "can," "might," or "may" is generally intended to convey that a particular embodiment can include (yet other embodiments do not include) particular features, elements, and/or operations, among others, unless specifically stated otherwise or otherwise understood within the context as used. Thus, such conditional language is not generally 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 necessarily include logic for deciding, with or without student input or prompting, whether such features, elements, and/or operations are included or are to be performed in any particular embodiment.
What has been described herein in the specification and drawings includes examples that enable the provision of an adjustable mobile energy consumption monitoring apparatus and monitoring method. It will, of course, not be possible to describe every conceivable combination of components and/or methodologies for purposes of describing the various features of the disclosure, but it can be appreciated that many further combinations and permutations of the disclosed features are possible. It is therefore evident that various modifications can be made to the disclosure without departing from the scope or spirit thereof. In addition, or in the alternative, other embodiments of the disclosure may be apparent from consideration of the specification and drawings and from practice of the disclosure as presented herein. It is intended that the examples set forth in this specification and the drawings be considered in all respects as illustrative and not restrictive. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A method of monitoring energy consumption, the method comprising the steps of:
obtaining phase voltage and phase current of a monitored load in unit time and phase difference of the phase voltage and the phase current, and calculating an electrical parameter according to the phase voltage, the phase current and the phase difference;
storing the electrical parameters or sending the electrical parameters to a remote server or a mobile terminal;
and sending out an alarm prompt according to the electrical parameter.
2. The energy consumption monitoring method according to claim 1, characterized in that: the method further comprises the following steps:
calculating active power according to the phase voltage and the phase current, wherein the active power is obtained according to a formula 1;
equation 1: p = UICOSPhi, where P is the active power, U is the phase voltage, I is the phase current, cos is the cosine, phi is the phase difference,COSphi is the load power factor.
3. The energy consumption monitoring method according to claim 1, characterized in that: the method further comprises the following steps:
calculating reactive power according to the phase voltage and the phase current, wherein the reactive power is obtained according to a formula 2;
equation 2: q = UIsinPhi where Q is reactive power and sin is sine.
4. The energy consumption monitoring method according to claim 1, characterized in that: the method further comprises the following steps:
calculating the power consumption of single-phase electricity according to the phase voltage and the phase current, wherein the power consumption of the single-phase electricity is obtained according to a formula 3;
equation 3: KWh = UIh, wherein h is the unit time.
5. The energy consumption monitoring method according to claim 1, characterized in that: the method further comprises the following steps:
the active power and the reactive power of the three-phase electricity of the symmetrical load are obtained according to a formula 4 and a formula 5 respectively, and the power consumption of the three-phase electricity of the symmetrical load is obtained according to a formula 6;
equation 4: p3=√3UIIICOSPhi, wherein UIIs line voltage, IIFor line current, P3Active power of three-phase electricity of a symmetrical load;
equation 5: q3=√3UIIIsinPhi, wherein Q3Reactive power of three-phase power of a symmetrical load;
equation 6: KWh3=P3KWh+Q3KWh; wherein, KWh3The power consumption of three-phase electricity is symmetrically loaded;
P3KWh=P3h，P3KWh is active electric energy; q3KWh=Q3h，Q3KWh is reactive power.
6. The energy consumption monitoring method according to claim 1, characterized in that:
the power consumption of the asymmetric load three-phase power = a-phase active power consumption + B-phase active power consumption + C-phase active power consumption + a-phase reactive power consumption + B-phase reactive power consumption + C-phase reactive power consumption.
7. The energy consumption monitoring method according to claim 1, characterized in that:
obtaining phase active power consumption and phase inactive power consumption before obtaining the power consumption of the asymmetric load three-phase power;
the phase active power consumption is obtained according to a formula PKWh = Ph, wherein PKWh is the phase active power consumption;
the phase reactive power consumption is obtained according to a formula QKWh = Qh, where QKWh is the phase reactive power consumption.
8. The energy consumption monitoring method according to any one of claims 1 to 7, characterized by:
the electric parameters comprise the active power, the power factor, the reactive power, the electricity consumption of the single-phase electricity, the active power and the reactive power of the symmetrical load three-phase electricity, the phase active electricity consumption and the phase reactive electricity consumption and the electricity consumption of the asymmetrical load three-phase electricity;
the method further comprises the following steps: presetting an alarm trigger value of one or more parameters in the electrical parameters, and sending out the corresponding alarm prompt when the one or more parameters in the electrical parameters reach the corresponding alarm trigger value;
and displaying one or more of the electrical parameters;
and sending the electrical parameters to the remote server or to the mobile terminal using wired or wireless means;
the electrical parameters also comprise the acquired electrical frequency of the phase A, the phase B and the phase C;
and displaying the electrical frequency of the A phase, the B phase and the C phase.
9. An adjustable mobile energy consumption monitoring device, the device comprising:
the wireless communication unit is used for carrying out wireless communication with a remote server or a mobile terminal;
the wired communication unit is used for carrying out wired communication with a remote server or a mobile terminal;
the current monitoring unit is used for monitoring the phase current of single-phase electricity or the phase currents and the line currents of the A phase, the B phase and the C phase of three-phase electricity;
the voltage monitoring unit is used for monitoring phase voltage of single-phase electricity or phase voltage and line voltage of A phase, B phase and C phase of three-phase electricity;
the electric frequency monitoring unit is used for monitoring the electric frequency of single-phase electricity or the electric frequency of A phase, B phase and C phase of three-phase electricity;
the analog-to-digital conversion unit is used for converting analog signals output by the current monitoring unit and the voltage monitoring unit or the electrical frequency monitoring unit into digital signals;
the processing unit is used for carrying out corresponding processing according to the digital signals output by the analog-to-digital conversion unit to generate electrical parameters;
the setting unit is used for forcibly setting a load power factor and presetting an alarm trigger value of one or more parameters in the electrical parameters;
the adjusting unit is used for correcting and adjusting basic parameters of the voltage monitoring unit, the current monitoring unit and the electrical frequency monitoring unit;
a display unit for displaying the electrical parameter;
the alarm unit is used for sending out corresponding alarm prompt when one or more parameters in the electrical parameters reach corresponding alarm trigger values;
the positioning unit is used for performing satellite positioning and base station positioning on the adjustable mobile energy consumption monitoring device;
the standby battery is used for providing power supply after the power supply of the power grid is cut off by the adjustable mobile energy consumption monitoring device;
the wired communication unit comprises an RS485 communication unit, an RS232 communication unit, an I2C communication unit, a TTL communication unit, an Ethernet communication unit and a power line carrier communication unit;
the wireless communication unit comprises a WiFi communication unit, a Bluetooth communication unit and a GPRS communication unit;
the satellite positioning unit comprises a base station positioning unit and a satellite positioning unit;
the alarm unit is also used for sending out corresponding alarm prompt when the position of the adjustable movable energy consumption monitoring device deviates from the initial position, and sending out corresponding alarm prompt after the adjustable movable energy consumption monitoring device is disconnected from the power grid.
10. An adjustable mobile energy consumption monitoring device comprising at least one processor;
and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the energy consumption monitoring method of any one of claims 1-8.
CN202011102332.2A 2020-10-15 2020-10-15 Adjustable mobile energy consumption monitoring device and monitoring method Pending CN112433089A (en)

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CN104659908A (en) * 2014-06-19 2015-05-27 吴春刚 Comprehensive automation device
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CN106786644A (en) * 2016-12-20 2017-05-31 北京金风科创风电设备有限公司 Reactive power control method, device and system

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Publication number Priority date Publication date Assignee Title
CN201750220U (en) * 2010-07-28 2011-02-16 开平市莱福电气设备有限公司 Smart terminal for power distribution measurement and control
CN103439614A (en) * 2013-09-03 2013-12-11 苏州太谷电力股份有限公司 Electric power monitoring device and monitoring method
CN103439613A (en) * 2013-09-03 2013-12-11 苏州太谷电力股份有限公司 Electric power security integrated monitoring device and analyzing method thereof
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