CN110907678A - Rate electric energy compensation metering method for IR46 multi-core modular intelligent electric energy meter - Google Patents
Rate electric energy compensation metering method for IR46 multi-core modular intelligent electric energy meter Download PDFInfo
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/56—Special tariff meters
- G01R11/57—Multi-rate meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
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Abstract
The invention discloses a charge rate electric energy compensation metering method of an IR46 multi-core modular intelligent electric energy meter. The method comprises the steps that a current management module rate electric energy data block is synchronized once by the management module at each rate time period switching point or a daily fixed time point of the management module, and a clock at each rate time period switching point or a daily fixed time point of the management module is sent to the metering module and stored. The invention can carry out the compensation metering on the rate electric energy which is continuously consumed by the site and is not metered in the abnormal period of the IR46 multi-core modular intelligent electric energy meter management module, thereby ensuring that the rate electric energy which is not metered in the abnormal management module can be traced and metered in the absence of the abnormal management module after the IR46 multi-core modular intelligent electric energy meter management module which is operated in the site is reinstalled or replaced by a new management module, and ensuring that the respective benefits of an electric power supplier and an electric power user are not lost.
Description
Technical Field
The invention relates to the technical field of electric energy metering and multi-rate metering of electric energy instruments and meters, in particular to an IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method.
Background
The IR46 is a technical standard document drafted by technical Committee TC12 under the International legal metering Organization (OIML), provides a general suggestion for newly designed and produced electric energy meters, and is currently accepted by most member countries in the organization. The IR46 multi-core modular intelligent electric energy meter is composed of a metering module, a management module, a communication module and an expansion module, and realizes functions of electric energy metering, data processing, real-time monitoring, automatic control, information interaction and the like. And the management module obtains second increment electric energy by using the difference between the base electric energy of the synchronous metering module per second and the base electric energy of the synchronous metering module in the previous second, and accumulates the second increment electric energy into the rate electric energy corresponding to the current running rate number to finally obtain the rate electric energy. An IR46 multi-core modular intelligent electric energy meter system is shown in FIG. 6. When the IR46 multi-core modular intelligent electric energy meter management module is pulled out, damaged, abnormally powered down and reset in the normal electricity utilization process on site, the IR46 multi-core modular intelligent electric energy meter is in abnormal working state, at this time, the basic electric energy of the metering module is still normally metered, but the management module is in an abnormal working state or in a pulled-out state, the rate electric energy is not accumulated normally any more, when the management module is reinserted, recovered to normal or replaced with a new one, according to the current rate electric energy metering flow, during the period when the management module is not working, the Δ E generated by the metering module is added to the rate electric energy corresponding to the current running rate number of the management module, and the non-accumulation is carried out in the electric energy of each rate obtained after the management module executes the normal time zone table, the public holiday and the weekly holiday judgment strategy in the abnormal time period, so that the respective benefits of the power supplier or the power consumer are damaged.
Disclosure of Invention
The invention aims to provide a tariff electric energy compensation metering method of an IR46 multi-core modular intelligent electric energy meter, so as to solve the problems in the background technology.
In order to achieve the above object, the present invention provides a method for rate and electric energy compensation metering of an IR46 multi-core modular intelligent electric energy meter, comprising the following steps:
s1, the management module actively pushes the rate electric energy data block and the T0 time of the current management module to the metering module and stores the data block and the T0 time at the time of T0, and the time of T0 is a switching point clock of each rate time period or a daily fixed time point clock of the management module;
s2, the management module monitors the running state of the management module in real time and judges whether an abnormal working condition occurs or not;
s3, if the management module detects that the management module is abnormal or pulled out, the abnormal occurrence time T1 is saved, and if the management module detects that the management module is abnormal or pulled out, the synchronous metering of the module electric energy per second and the accumulation of the management module rate electric energy are stopped;
s4, when the management module is reinserted, recovered to normal or replaced with a new management module, the management module is synchronized to the management module at the latest time when the rate electric energy data block and the T0 time stored in the metering module are synchronized after the management module operates normally;
s5, the management module synchronously measures the current clock Tn of the module;
s6, the management module calculates the abnormal time interval of the management module, when the management module recovers the normal working state again and judges that the T1 is valid, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T1 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s7, the management module calculates the abnormal time interval of the management module, when the management module detects that the management module is inserted and judges the effective T1, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T1 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s8, the management module calculates the abnormal time interval of the management module, when the management module detects that the management module is inserted and judges invalid T1, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T0 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s9, the management module sends the calculated rate switching time points to the metering module to obtain the frozen electric energy of each rate switching time point;
and S10, after the management module acquires the electric energy of each rate switching time point in the abnormal time period of the module, calculating the increment delta e in each rate execution time period, and accumulating the delta e into the rate electric energy.
Preferably, in S2, the abnormal condition includes being pulled out, abnormal reset, abnormal power down, and abnormal damage.
Preferably, in S3, when the storage abnormality management module is pulled out of the occurrence time T1, the EEPROM memory current clock T1 is added.
Preferably, in S3, the storage management module adds the RAM buffer current clock T1 after the abnormal reset, the abnormal damage, or the abnormal power failure occurs at time T1.
Preferably, in S6, the formula calculated by the management module is: Δ T — Tn-T1.
Preferably, in S7, the formula calculated by the management module is: Δ T — Tn-T1.
Preferably, in S8, the formula calculated by the management module is: Δ T — Tn-T0.
Preferably, in S9, each rate switching time point is accurate to the time of year, month, day.
Preferably, the method for detecting the operating state of the management module comprises the following steps: the MVCC is connected to an IO port of a clock signal receiving end of the management module after passing through the R221 resistor for monitoring, the POWER failure signal POWER-D state sent to the management module by the metering module is used for judging the respective running states of the metering module and the management module.
Preferably, the method for managing the access circuit monitored by the module comprises the following steps: and accessing the clock synchronization second signal of the metering module into an IO port of a clock signal receiving end of the management module for monitoring, sending a POWER failure signal POWER-D state to the management module by the metering module, and judging the respective running states of the metering module and the management module.
Compared with the prior art, the invention has the beneficial effects that: the method for rate and electric energy compensation metering of the IR46 multi-core modular intelligent electric energy meter is mainly used for performing compensation metering on rate and electric energy which is continuously consumed by electricity on site and lacks in metering during the abnormal period of the management module of the IR46 multi-core modular intelligent electric energy meter, so that the loss of rate and electric energy which is not metered by an abnormal management module can be traced and metered after the management module of the IR46 multi-core modular intelligent electric energy meter which is operated on site is reinstalled or replaced by a new management module, and the respective benefits of an electric power supplier and an electric power user are not lost.
Drawings
FIG. 1 is one of the overall flow diagrams of the present invention;
FIG. 2 is a second block diagram of the overall process of the present invention;
FIG. 3 is a third block diagram of the overall process of the present invention;
FIG. 4 is a circuit diagram of an MVCC test port of the metrology module of the present invention;
FIG. 5 is a circuit diagram of a clock signal detection port of the metering module according to the present invention;
FIG. 6 is a block diagram of an IR46 multi-core modular intelligent electric energy meter system of the present invention;
fig. 7 is a block diagram of a conventional tariff electric energy metering algorithm according to 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.
Referring to fig. 1-7, the present invention provides a technical solution:
the existing rate electric energy metering algorithm flow is shown in fig. 7:
A. through a specific communication interface, the management module synchronously measures the basic electric energy E _ now of the module every second, and the method comprises the following steps: forward active power, reverse active power, I/II/III/IV quadrant reactive total electric energy and the like;
B. the management module uses the basic electric energy E _ now of the synchronous metering module to be different from the basic electric energy E _ last of the synchronous metering module in the last second to obtain delta E;
C. if the delta E is larger than 0, the basic electric energy synchronous management module of the metering module accumulates the delta E to the electric energy of the rate corresponding to the current running rate number N;
D. if delta E is less than or equal to 0, the electric energy synchronization and accumulation operation is not carried out.
Note 1: e _ last: measuring the basic electric energy of the module in the last second;
note 2: e _ now: measuring the basic electric energy of the module at the current second;
note 3: Δ E: the difference value of the current second metering module basic electric energy and the previous second metering module basic electric energy is obtained;
note 4: n: the current operation rate number is obtained after executing the time zone table, the time period table, the public holiday and the weekly holiday judgment strategies.
For example, the following steps are carried out:
the management module of the IR46 multi-core modular intelligent electric energy meter is inserted again after being pulled out for 24 hours in the normal electricity utilization process on site, and the newly-added positive active total electric energy of the metering module is 1000Kwh within 24 hours after the management module is pulled out. According to the preset configuration time interval rate parameter of the management module, under the normal condition, the rate electric energy should normally be the rate electric energy of the word-running rate within 24 hours when the management module is pulled out:
electric energy with sharp charge rate: 200 Kwh;
peak rate electrical energy: 200 Kwh;
flat rate electric energy: 200 Kwh;
valley rate electric energy: 200 Kwh;
electricity rate according to current performance rate:
tip rate electricity rate: 0.8800 yuan;
peak rate electricity rate: 0.6800 yuan;
flat rate electricity price: 0.4800 yuan;
valley rate electricity rate: 0.2800 yuan;
normally, the total amount of electricity generated by the electricity consumer in the first 24 hours is: 200 (0.8800+0.6800+0.4800+0.6800) ═ 464 parts;
normally, the electricity consumer will be charged a 464 dollar electricity fee for normal usage.
Under the abnormal condition, if the IR46 multi-core modularized intelligent electric energy meter management module is unplugged for 24 hours and then is plugged again, and the current running rate number is a sharp rate, the rate electric energy should be normal running rate electric energy respectively as follows:
electric energy with sharp charge rate: 1000 Kwh;
peak rate electrical energy: 0 Kwh;
flat rate electric energy: 0 Kwh;
valley rate electric energy: 0 Kwh;
the total amount of the electricity generated by the electricity consumer in the previous 24 hours is as follows: 1000 × 0.8800 ═ 880 yuan;
in this case, the power consumer will charge 880 yuan of electricity fee, which is 416 yuan higher than the normal charge fee, and the power consumer will be seriously impaired in his interest.
Under the abnormal condition, if the management module of the IR46 multi-core modularized intelligent electric energy meter is unplugged for 24 hours and then is plugged again, and the current running rate number is the valley rate, the rate electric energy should be normal running rate electric energy respectively as follows:
electric energy with sharp charge rate: 0 Kwh;
peak rate electrical energy: 0 Kwh;
flat rate electric energy: 0 Kwh;
valley rate electric energy: 1000 Kwh;
the total amount of the electricity generated by the electricity consumer in the previous 24 hours is as follows: 1000 × 0.2800 ═ 280 yuan;
in this case, the power operator will charge the electricity consumer for 280 yuan, which is 600 yuan lower than the normal charge, and the power operator will be seriously impaired.
The invention provides a charge rate and electric energy compensation metering method of an IR46 multi-core modularized intelligent electric energy meter, which comprises the following steps:
s1, the management module actively pushes the rate electric energy data block and the T0 time of the current management module to the metering module and stores the data block and the T0 time at the time of T0, and the time of T0 is a switching point clock of each rate time period or a daily fixed time point clock of the management module;
s2, the management module monitors the running state of the management module in real time and judges whether abnormal working conditions such as pulling-out, abnormal resetting, abnormal power failure, abnormal damage and the like occur;
s3, if the management module detects that the management module is abnormal or pulled out, the abnormal occurrence time T1 is saved, and if the management module detects that the management module is abnormal or pulled out, the synchronous metering of the module electric energy per second and the accumulation of the management module rate electric energy are stopped;
in addition, if the management module detects the self abnormality, the abnormal occurrence time T1 is saved; in order to prevent the management module from being pulled out abnormally, an EEPROM is additionally added to store a current clock T1; if the management module detects that the management module is pulled out, the pulled-out clock T1 is saved, and then the synchronous metering of the module electric energy per second and the accumulation of the management module rate electric energy are stopped;
s4, when the management module is reinserted, recovered to normal or replaced with a new management module, the management module is synchronized to the management module at the latest time when the rate electric energy data block and the T0 time stored in the metering module are synchronized after the management module operates normally;
s5, the management module synchronously measures the current clock Tn of the module; when the management module resumes the normal working state and determines that the T1 is valid, the management module calculates according to the following formula: Δ T-Tn-T1;
the management module synchronously measures the current clock Tn of the module; when the management module detects that the management module is inserted and judges that the T1 is valid, the management module calculates according to the following calculation formula: Δ T-Tn-T1;
the management module synchronously measures the current clock Tn of the module; when the management module detects that the management module is inserted and judges that no effective T1 exists, the management module calculates according to the following formula: Δ T-Tn-T0;
s6, the management module calculates the abnormal time interval of the management module, when the management module recovers the normal working state again and judges that the T1 is valid, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T1 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s7, the management module calculates the abnormal time interval of the management module, when the management module detects that the management module is inserted and judges the effective T1, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T1 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s8, the management module calculates the abnormal time interval of the management module, when the management module detects that the management module is inserted and judges invalid T1, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T0 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s9, the management module sends the calculated rate switching time points to the metering module to obtain the frozen electric energy of each rate switching time point;
and S10, after the management module acquires the electric energy of each rate switching time point in the abnormal time period of the module, calculating the increment delta e in each rate execution time period, and accumulating the delta e into the rate electric energy.
The table below shows the electrical interface between the metering module and the management module of the IR46 multi-core modular intelligent electric energy meter, which includes the power supply (5V ± 0.15, load maximum current 150mA) provided by the MVCC for the metering module to the management module.
Electrical interface meter for metering module and management module
In this embodiment, the management board operation state monitoring scheme is as follows:
the detection method of the operation state of the management module is as the circuit shown in fig. 4, the MVCC is connected to a management module clock signal receiving terminal IO port (5V Check) for monitoring after passing through a R221 resistor, a POWER failure signal POWER-D (open-drain mode, POWER failure is low level) state sent to the management module by the metering module is integrated, and the respective operation states of the metering module and the management module are judged, wherein the MVCC is connected to the management module clock signal receiving terminal IO port through a R221, the management module clock signal receiving terminal IO port is connected to a GND terminal through a R222, the management module clock signal receiving terminal IO port is connected to a C235 and is connected to the GND terminal, wherein the R221 is 10K Ω, the R222 is 10K Ω, the C235 is 100nF, and the management module state monitoring and judging logic is shown in the following table:
management module state monitoring and judging logic table
Wherein, the detection method of the operation state of the management module is as the circuit shown in FIG. 5, the clock synchronous SECOND Signal (SECOND) of the metering module is connected to the IO port of the clock signal receiving terminal (MCU IO) of the management module for monitoring, the POWER-down signal POWER-D (open-drain mode, POWER-down is low level) state sent to the management module by the metering module is synthesized, the respective operation states of the metering module and the management module are judged,
as shown in the following table:
management module state monitoring and judging logic table
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An IR46 multi-core modularized intelligent electric energy meter rate electric energy compensation metering method is characterized in that: the method comprises the following steps:
s1, the management module actively pushes the rate electric energy data block and the T0 time of the current management module to the metering module and stores the data block and the T0 time at the time of T0, and the time of T0 is a switching point clock of each rate time period or a daily fixed time point clock of the management module;
s2, the management module monitors the running state of the management module in real time and judges whether an abnormal working condition occurs or not;
s3, if the management module detects that the management module is abnormal or pulled out, the abnormal occurrence time T1 is saved, and if the management module detects that the management module is abnormal or pulled out, the synchronous metering of the module electric energy per second and the accumulation of the management module rate electric energy are stopped;
s4, when the management module is reinserted, recovered to normal or replaced with a new management module, the management module is synchronized to the management module at the latest time when the rate electric energy data block and the T0 time stored in the metering module are synchronized after the management module operates normally;
s5, the management module synchronously measures the current clock Tn of the module;
s6, the management module calculates the abnormal time interval of the management module, when the management module recovers the normal working state again and judges that the T1 is valid, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T1 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s7, the management module calculates the abnormal time interval of the management module, when the management module detects that the management module is inserted and judges the effective T1, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T1 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s8, the management module calculates the abnormal time interval of the management module, when the management module detects that the management module is inserted and judges invalid T1, the management module uses the normal time zone table, the public holiday and the weekend execution logic in the abnormal time interval of the management module (T0 to Tn) to find out the rate switching time points in sequence: tx, T (x +1) to T (x + n);
s9, the management module sends the calculated rate switching time points to the metering module to obtain the frozen electric energy of each rate switching time point;
and S10, after the management module acquires the electric energy of each rate switching time point in the abnormal time period of the module, calculating the increment delta e in each rate execution time period, and accumulating the delta e into the rate electric energy.
2. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: in S2, the abnormal condition includes being pulled out, abnormal reset, abnormal power down, and abnormal damage.
3. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: in S3, when the storage exception management module is pulled out of the occurrence time T1, the EEPROM is added to store the current clock T1.
4. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: in S3, the storage management module adds the RAM buffer current clock T1 after abnormal reset, abnormal damage, or abnormal power failure at time T1.
5. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: in S6, the formula calculated by the management module is: Δ T — Tn-T1.
6. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: in S7, the formula calculated by the management module is: Δ T — Tn-T1.
7. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: in S8, the formula calculated by the management module is: Δ T — Tn-T0.
8. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: in S9, each rate switching time point is accurate to the time of year, month, day.
9. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: the running state detection method of the management module comprises the following steps: the MVCC is connected to an IO port of a clock signal receiving end of the management module after passing through the R221 resistor for monitoring, the POWER failure signal POWER-D state sent to the management module by the metering module is used for judging the respective running states of the metering module and the management module.
10. The IR46 multi-core modular intelligent electric energy meter rate electric energy compensation metering method of claim 1, wherein: the method for accessing the circuit monitored by the management module comprises the following steps: and accessing the clock synchronization second signal of the metering module into an IO port of a clock signal receiving end of the management module for monitoring, sending a POWER failure signal POWER-D state to the management module by the metering module, and judging the respective running states of the metering module and the management module.
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| CN112946562A (en) * | 2021-02-07 | 2021-06-11 | 南方电网数字电网研究院有限公司 | Power failure protection method and device for double-core intelligent electric meter and double-core intelligent electric meter |
| CN112946562B (en) * | 2021-02-07 | 2023-02-24 | 南方电网数字电网研究院有限公司 | Power failure protection method and device for double-core intelligent electric meter and double-core intelligent electric meter |
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