CN114356832A - Special calculator for electric quantity compensation - Google Patents
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Abstract
A special calculator for electric quantity compensation relates to the technical field of electric power metering, and comprises a hardware system and a software system, wherein the hardware system comprises a singlechip, a key unit, a display unit and a power supply; the software system comprises display software, keyboard software, mathematical operation software, trigonometric function operation software, wrong wiring mode database software, anti-interference software and monitoring software. The invention has the beneficial effects that: the invention applies intelligent control technology, and the traditional complicated calculation work manually completed by workers is completed by a special calculator, so that the workload of field workers is reduced; the application of the special calculator for the electric energy metering can greatly improve the working efficiency; normalizing the electric quantity compensation work; the working capacity of workers is improved; the method is suitable for electric energy measurement major, electricity utilization major, electric charge major and other major, and has good popularization and application prospects.
Description
Technical Field
The invention relates to the technical field of electric power metering, in particular to a special calculator for electric quantity compensation.
Background
The electric quantity compensation work of the electric energy metering device under the fault condition is an important work. The method has the characteristics of high normative requirement and high requirements on the tightness and the rigor of a calculation method; therefore, the electric quantity compensation worker is required to have higher correction coefficient derivation and wrong electric quantity calculation capacity required by the electric quantity compensation worker.
In most cases, when the electric energy metering device is found to be in the field work of the electric energy metering device of the electric power customer, the derivation of the electric quantity compensation correction coefficient and the calculation of the error electric quantity of the electric quantity compensation work are finished under the condition that both the on-site electricity supply and utilization parties approve and confirm, the working efficiency is low, if the corresponding working capacity of the working personnel is low, the possibility of great derivation and calculation errors exists, and the correctness, authority and seriousness of the technical basis of the compensation electric quantity compensation are questioned.
Due to various supervisors and objective reasons, in the current actual field electricity quantity compensation operation, because the professionals who correctly master the electricity quantity compensation method are fewer, and the professionals only work in the electric energy metering professional department, the electricity management professional, the reading, the checking, the receiving professional, the electricity inspection professional and other professionals related to the electric energy metering device of the marketing professional are fewer, and the personnel who master the correct electricity quantity compensation correction coefficient derivation and the wrong electricity quantity compensation calculation method and skill are fewer.
Through investigation, in the electric quantity compensation operation in the field actual work, due to the relationship of non-electric energy metering specialties, workers such as a power consumption management specialty, a reading and checking specialty, a power consumption inspection specialty and the like do not have corresponding electric quantity compensation skills, in the electric quantity compensation operation in the field actual work, the phenomenon of naturally and imaginarily compensating the electric quantity exists, the compensated electric quantity is severely distorted, and the working efficiency is low.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a special calculator for electric quantity compensation.
The invention provides a special calculator for electric quantity compensation, which comprises a hardware system and a software system, wherein the hardware system comprises a singlechip (central processing unit), a key unit, a display unit and a power supply; the software system is integrated in the memory of the single chip microcomputer and comprises display software, keyboard software, mathematical operation software, wrong wiring mode database software, wrong electric quantity compensation calculation software, anti-interference software and monitoring software.
The single chip microcomputer (central processing unit) is combined with keyboard input software, output display software, error electric quantity correction coefficient solving software and error electric quantity compensation calculating software, and performs parameter input and calculation result output according to the input mode, the output mode and the requirement of the error electric quantity compensation calculating special requirement to complete the error electric quantity compensation calculating function.
The key unit is used for completing input of a wrong wiring mode, input of a wrong electric quantity value during wrong wiring and calculation, display and calling of a power factor angle phi required by power factor calculation and a correction coefficient K in a wrong wiring mode correction coefficient solving process.
The key unit is designed with a dual-function key, and the first function and the second function of the dual-function key are switched, so that the automatic switching is realized by combining software and hardware; manual switching is not required.
The key adopts a 'one-way channel' type operation mode, namely: the method specifically comprises the following steps that the current input parameter is only valid, the next step of input parameter prompt and the shielding input of other keys are invalid: when the current parameter key needing to be input is pressed down effectively, the current key value parameter can be effectively input, and the other keys are invalid, the operation of the step is completed, the next step of inputting the parameter content is automatically prompted immediately, the keyboard required by the next step of inputting the parameter content is pressed down, the corresponding key value parameter can be effectively input, and other keys are shielded.
The keyboard software can automatically control and guide, automatically complete the automatic conversion of a wrong wiring mode, Arabic numbers, a correction coefficient, the electric quantity to be retreated and compensated and the like according to the calculation flow and step requirements of the electric quantity to be retreated and compensated, and does not need to consider the complex conversion relation and operation among the wrong wiring mode, the Arabic numbers, the correction coefficient, the electric quantity to be retreated and compensated and the like by a worker.
The mathematical operation software completes the work of algebraic operation, floating point number operation, function operation, logarithm operation and exponential operation. The method mainly comprises the operation work of addition, subtraction, multiplication, division and squaring, cubic, evolution, logarithm, exponent and trigonometric functions, and the intermediate operation of calculating the back-compensation electric quantity is completed.
The method for calculating the electric quantity back compensation by adopting the calculator adopts the special calculator of the claim, and comprises the following steps:
the first step is as follows: turning on a power switch, and enabling the calculator to enter an initial state, namely an input mode of a wrong wiring type;
the second step is that: inputting a wrong wiring type; inputting A, C two-phase wrong wiring types, pressing an equal-number key, and judging the input wrong wiring types by wrong wiring mode database software;
the third step: solving a wrong wiring correction coefficient; inputting a power factor angle measured on site, pressing a K key, calling a corresponding K solving formula of wrong wiring mode database software, and calculating a K value;
the fourth step: solving the power quantity to be withdrawn and compensated; pressing down an error electric quantity solving key W, inputting error electric quantity, pressing down an equal sign key, and calculating to obtain the electric quantity to be returned and compensated.
In the second step, before the input is finished, the input is wrong in the input process and cannot be changed, and the input is required to be restarted and then input again; after the input is finished, pressing an equal-number key, judging the input wrong wiring type by wrong wiring mode database software, calling the wrong wiring mode data if the input is correct, and automatically restoring the calculator to the initial state if the input wrong wiring type does not exist, and inputting again; if the input wrong wiring type exists but is not the type which is required to be input, the input is in an input completion state, a clear key can be pressed, the initial state of the power-on is recovered, and the input can be performed again; when the input is finished, only the equal-sign key is pressed to be effective and can be operated, and other keys are shielded and are pressed to be ineffective;
in the third step, after the power factor angle is input, only the K key of the correction coefficient is pressed to be valid, other keys are shielded, and the keys are pressed to be invalid; after a correction coefficient solving key K is pressed, if the display displays Erorr, the wrong wiring mode is shown, and the electric energy meter stops running;
and in the fourth step, when the correction coefficient K is obtained by solving and is displayed on a display, only the W key of the error electric quantity solving key is valid, the W key is pressed down, the error electric quantity solution which needs to be retreated and compensated is carried out, and other keys are shielded and pressed down to be invalid.
The clearing key C can be cleared only under two conditions of the input of A, C two-phase error wiring types and the calculation of the amount of error power to be compensated, the clearing key C is restored to the initial state after the clearing operation, other links are shielded and pressed to be invalid, and the clearing key C needs to be shut down, restarted and input again when modification is needed.
The invention has the beneficial effects that:
1. the intelligent and information technology is applied, the intelligent control technology of a single chip microcomputer is applied, hardware and software are combined, and the conventional complicated correction coefficient solving work and error electric quantity calculating work which are manually finished by workers are finished by a special calculator.
2. By applying a software design technology, a standard database with a wrong wiring form is developed as a standard, so that the possibility of calculation errors is eliminated, and major marketing accidents are eliminated; starting from the practical use of marketing professional production, the keyboard is designed into the dual-function key by using a software design technology, so that the number of keys is reduced, the cost is reduced, and the use and the operation are convenient; the wrong wiring type judgment software and the wrong wiring correction coefficient calculation software are creatively designed into a special database, so that a good foundation is laid for further development, new function addition, convenience and application and modification in the future; the wrong wiring type display software and the wrong wiring correction coefficient display software are creatively designed into a special database, so that the application and modification are facilitated, and a good foundation is laid for further development and new function addition in the future; the applicability of the single chip microcomputer to floating point operation is verified and realized by creatively calculating mathematical operation and adopting a floating point calculation method, and valuable experience is accumulated for further application in the future; and combining software such as monitoring software, functional calculation software, anti-interference software and the like to realize functions of error electric quantity correction coefficient solving, error electric quantity compensation calculation and the like. The software design adopts a modular design, and is convenient for improvement, function upgrade and version change.
3. The calculation method is provided for non-electric energy metering professionals who do not know the error electric quantity correction coefficient calculation and the error electric quantity calculation method; the electric energy metering device improves the field working efficiency for electric energy metering professionals. The complicated process of manual calculation is shortened to tens of seconds to several seconds from several minutes to tens of minutes, and the working efficiency is improved by dozens of times. And the standard electric quantity compensation operation is realized by restricting and standardizing the conventional electric quantity compensation method and possibility which possibly depend on the idea through the calculation method of a special calculator for electric energy metering. The calculation method of the calculator is used, the phenomenon that the amount of electricity to be returned and supplemented is calculated in a small amount is avoided by using a correct calculation method, and the economic loss of a power supply enterprise is reduced.
Drawings
FIG. 1 is a diagram of the hardware connection of the present invention;
FIG. 2 is a key diagram of the present invention.
Detailed Description
The embodiment 1 provides a special calculator for electric quantity compensation, which comprises a hardware system and a software system, wherein the hardware system comprises a single chip microcomputer (central processing unit), a key unit, a display unit and a power supply, the key unit and the display unit are both connected with the single chip microcomputer, the power supply is connected with the display unit and the single chip microcomputer, and the single chip microcomputer is also connected with a software upgrading port; the software system is integrated in the memory of the single chip microcomputer and comprises display software, keyboard software, mathematical operation software, wrong wiring mode database software, wrong electric quantity compensation calculation software, anti-interference software and monitoring software.
The single chip microcomputer (central processing unit) is combined with keyboard input software, output display software, error electric quantity correction coefficient solving software and error electric quantity compensation calculation software, and performs parameter input and calculation result output according to the input mode, the output mode and the requirement of the error electric quantity compensation calculation special requirement to complete the error electric quantity compensation calculation.
The key unit is used for completing input of an error wiring mode (such as Uab-Ia and Ucb-Ic), input of an error electric quantity value during error wiring (such as 5768 kWh), input of a power factor angle phi required by power factor calculation in an error wiring mode correction coefficient solving process, and calculation and display calling of a correction coefficient (K).
The key is designed as a dual-function key, and the first function and the second function of the dual-function key are switched, so that automatic switching is realized by combining software and hardware. For example: after the machine is started, the wrong wiring type input mode is entered, the input mode is automatically the second function key mode, the equal-sign key is pressed after the input is finished, the input of the equal-sign key is automatically input according to the first function key, and then the input of the power factor angle, the input of the K key, the input of the W key and the input of the wrong circuit numerical value are automatically input according to the first function key without manual switching.
The key unit is provided with 18 keys, and the first function key comprises: a 0 key, a 1 key, a 2 key, a 3 key, a 4 key, a 5 key, a 6 key, a 7 key, an 8 key, a 9 key, a phi key, = key, a K key, a W key, a C key, a dot key, Uab =0 key, Ucb =0 key.
The second function key includes:
the second functional key of the 0 bond is a Uab bond; the second function key of the 1-key is the Ubc key; the second function key of the 2-key is the Uca key; the second function key of the 3 keys is the Uba key; 4-key the second function key is the Ucb key; 5 key the second function key is the Uac key; key 6 the second function key is the Ua' b key; 7 keys the second function key is the Uba' key; 8-key second function key is Uca' key; 9 key the second function key is the Ua' c key; the second function key of the phi key is the Ubc' key; = key second function key is Uc' b key; the second function key of the K key is a Uc' a key; the W key second function key is a Uac' key; c bond the second functional bond is a Ia bond; decimal key the second functional key is-Ia key; uab =0 key the second functional key is an Ic key; ucb =0 key the second functional key is the-Ic key.
The keyboard software completes the functions of Arabic number input, wrong wiring mode input, intermediate calculation type and content input and calculation result required input.
The keyboard software comprises digital input (0-9) software, wrong wiring mode input software (such as Uab-Ia and Ucb Ic), power factor angle phi input software, calculation result output "=" software, k "value calculation input software, power quantity W calculation input software to be replaced and the like.
The keyboard software is used for completely inputting 0-9 Arabic numerals; inputting all (324) wrong wiring modes completely; inputting the value of a power factor angle (0-90 degrees) completely; the operation functions corresponding to the decimal point key, = key, K key, W key, and C key are input comprehensively.
The input method comprises the steps of setting an I/O PA port of a central processing unit as an input port through initialization setting of monitoring software, inputting operation numbers, inputting wrong wiring modes, inputting decimal points, inputting = key, inputting K keys, inputting W keys and inputting C keys, inputting the parameters to the input port of the PA port of the central processing unit in a unified mode, and completing input of all keyboard functions.
In order to make the operation sequence of the calculator during the operation of the wrong electric quantity compensation calculation meet the requirements of the wrong electric quantity compensation calculation work flow and regulations, the key adopts a one-way operation mode, namely: the method specifically comprises the following steps that the current input parameter is only valid, the next step of input parameter prompt and the shielding input of other keys are invalid: when the current parameter key needing to be input is pressed down effectively, the current key value parameter can be effectively input, and the other keys are invalid, the operation of the step is completed, the next step of inputting the parameter content is automatically prompted immediately, the keyboard required by the next step of inputting the parameter content is pressed down, the corresponding key value parameter can be effectively input, and other keys are shielded.
Because the wrong electric quantity compensation calculation work needs professional analysis capability and a special calculation flow program, the professional requirement is high, and the parameter input error is easily caused by adopting non-one-way-type random input operation, so that the calculation result, the halt, the calculation result error and the like cannot be obtained.
The single-lane parameter input mode is convenient for a user to operate and use according to the requirement of the wrong electric quantity compensation calculation workflow, and particularly for personnel unfamiliar with the wrong electric quantity compensation calculation work, the method can be rapidly mastered according to the single-lane parameter input requirement and prompt, so that the wrong electric quantity compensation calculation work is completed.
The keyboard software can automatically control and guide, automatically complete the automatic conversion of a wrong wiring mode, Arabic numbers, a correction coefficient, the electric quantity to be retreated and compensated and the like according to the calculation flow and step requirements of the electric quantity to be retreated and compensated, and does not need to consider the complex conversion relation and operation among the wrong wiring mode, the Arabic numbers, the correction coefficient, the electric quantity to be retreated and compensated and the like by a worker. The operation complexity of the calculator is greatly reduced, various input errors are thoroughly avoided, and the applicability and the usability of the calculator special for electric energy metering are greatly improved.
The display unit is composed of a display and a corresponding configuration circuit and is used for outputting and displaying the following contents in a specific display format:
(1) wrong wiring (e.g., Uab-Ia, Ucb Ic);
(2) wrong charge value during wrong wiring (e.g., 5768 kWh);
(3) a power factor angle phi required for power factor calculation;
(4) the calculation result of the correction coefficient K and the calling display of the calculation formula are displayed;
(5) the calculation result of the electric quantity should be cancelled and compensated.
The power supply circuit consists of a dry battery (3V) and a boosting and voltage stabilizing circuit. The power supply is used for providing working power supply for the electric energy metering special calculator. The voltage boosting and stabilizing circuit boosts the 3V voltage of the dry battery to 5V and stabilizes the voltage, and the design of selecting the 3V dry battery and boosting the voltage to 5V is designed, so that the power circuit of the special calculator for electric energy metering is simple, applicable and reliable, and is convenient to use on site.
The display software completes the output display of the input quantity, the calculated quantity and the calculated result quantity. The system consists of software such as display content, display mode, display format, self-built character library and the like.
The display content software is used for calculating and displaying a power factor angle phi and a correction coefficient (K) required by power factor calculation in the process of solving the correction coefficient of the wrong wiring mode (such as Uab-Ia and Ucb-Ic), the numerical value of the wrong electric quantity (such as 5768 kWh) during the wrong wiring mode and the correction coefficient of the wrong wiring mode which need to be displayed.
The display mode software is set by the calculation requirements of input parameters and output parameters and the calculation results.
The display format software carries out special setting according to the calculation result and the requirement of the back-up power calculation work.
The self-built character library software needs to establish a special character library because no special characters required by the back-up electric quantity calculation work exist in the display character library, and the calculator establishes the special character library.
The display software is used for completely displaying all contents of the compensation electric quantity calculation work; completely displaying specified flows and relations required by the back-compensation electric quantity calculation work; completely displaying formats and contents which accord with the operation of calculating the back-compensation electric quantity; correctly displaying correct results of the input parameters, the calculation parameters and the calculation result parameters; and synchronously displaying the calculation relationship and the result between the input parameters and the calculation result parameters of the calculation parameters.
The method comprises the steps of setting an I/O PD port of a central processing unit as an output port through initialization setting of monitoring software, uniformly inputting a display format, display contents and a display mode into a display port of the PD port of the central processing unit, and performing calculation output of parameter input, parameter output, k value operation, W value operation, equal-sign key operation results and the like.
The mathematical operation software completes the work of algebraic operation, floating point number operation, function operation, logarithm operation and exponential operation. The intermediate operation of calculating the back-compensation electric quantity is mainly completed by the operation work of addition, subtraction, multiplication, division and squaring, cubic, evolution, logarithm, exponent and trigonometric function.
The mathematical operation software comprehensively supports algebraic operation of the back-compensation electric quantity calculation work; trigonometric function operation for the calculation work of the back compensation electric quantity is comprehensively supported; the correction coefficient operation of the compensation electric quantity calculation work is comprehensively supported; the operation of the compensation electric quantity calculation work is comprehensively supported.
The wrong wiring mode database software comprises a wrong wiring mode database, wrong wiring correction coefficient calculation software and a wrong wiring mode display database. The operation work of judging the category type of all the wrong wiring modes is comprehensively completed; the correct solving operation work of all the wrong wiring mode category correction coefficients is completed comprehensively; and the display of the solving results of the correction coefficients of all the wrong wiring modes and the output display of the correction coefficient formula are completed comprehensively.
And the wrong electric quantity compensation calculation software calculates the compensation electric quantity according to a wrong electric quantity compensation calculation formula, the input accumulated wrong electric quantity numerical value and the calculated K value.
The anti-interference software can prevent the problems of software and hardware such as dead halt, calculation errors and the like caused by internal and external interference of the special calculator for electric energy metering, and ensure that the special calculator for electric energy metering runs well, the calculation function is normal and the calculation result is correct.
The anti-interference software mainly comprises watchdog software and redundant software. The whole process is completed with anti-interference operation function; the filter has good filtering effect on key input interference and external electromagnetic interference.
The monitoring software completes management, coordination and organization work of the software of the special calculator for electric energy metering, and ensures normal realization and operation of each computing function, input/output function and display function of the special calculator for electric energy metering.
The monitoring software comprises initialization software, condition calling software, condition returning software, function setting software and the like.
The initialization software completes the setting and the stipulation of the initial function of the I/O port of the special calculator for electric energy metering; the condition calling software and the condition returning software finish the setting and the constraint of the calling and returning conditions among the softwares, ensure the correctness and the completion of the calling and returning functions, ensure the normal operation of the calculation softwares, and the function setting software finishes the setting and the main and auxiliary calling relations of the functional relations among the softwares, thereby ensuring the normal realization of the providing and receiving functions of the softwares.
The monitoring software comprehensively performs real-time and reasonable relationship organization and coordination control on parameter input, parameter output and intermediate calculation software; performing special calculation under special parameters, and performing special monitoring and organization; for inputting non-one-way parameters, comprehensive management and processing are required.
The method for calculating the electric quantity back compensation by adopting the calculator comprises the following steps:
the first step is as follows: turning on a power switch, and enabling the calculator to enter an initial state, namely an input mode of a wrong wiring type;
the second step is that: inputting a wrong wiring type; inputting A, C two-phase wrong wiring type, pressing equal-number key, and judging the input wrong wiring type by the wrong wiring mode database software.
The third step: solving a wrong wiring correction coefficient; inputting a power factor angle measured on site, pressing a K key, calling a corresponding K solving formula of wrong wiring mode database software, and calculating a K value;
the fourth step: solving the power quantity to be withdrawn and compensated; pressing down an error electric quantity solving key W, inputting error electric quantity, pressing down an equal sign key, and calculating to obtain the electric quantity to be returned and compensated.
In the second step, before the input is finished, the input is wrong in the input process and cannot be changed, and the input is required to be restarted and then input again; after the input is finished, pressing an equal-number key, judging the input wrong wiring type by wrong wiring mode database software, calling the wrong wiring mode data if the input is correct, and automatically restoring the calculator to the initial state if the input wrong wiring type does not exist, and inputting again; if the input wrong wiring type exists but is not the type which is required to be input, the input completion state is the input completion state, a clear key can be pressed, the power-on initial state is recovered, and the input can be performed again.
In the third step, when the equal-sign key is pressed, only the equal-sign key is pressed to be effective and can be operated, and other keys are shielded and are pressed to be ineffective; similarly, after the power factor angle is input, only the correction coefficient key K is pressed effectively, and other keys are shielded, and the key is pressed inefficiently.
And in the fourth step, when the correction coefficient K is obtained by solving and is displayed on a display, only the W key of the error electric quantity solving key is valid, the W key is pressed down, the error electric quantity solution which needs to be retreated and compensated is carried out, and other keys are shielded and pressed down to be invalid.
The clearing key C can be cleared only under two conditions of the input of A, C two-phase error wiring types and the calculation of the amount of error power to be compensated, the clearing key C is restored to the initial state after the clearing operation, other links are shielded and pressed to be invalid, and the clearing key C needs to be shut down, restarted and input again when modification is needed.
When the input of the wrong wiring type is finished, the equal-sign key is pressed, and if the display displays that the calculator is recovered to the initial input state, the input wrong wiring type does not exist.
After the correction coefficient solving key K is pressed, the display displays Erorr to show the wrong wiring mode, and the electric energy meter stops running.
the first step is as follows: turning on the power switch, the calculator enters the wrong wiring type input mode
The second step is that: inputting a wrong wiring type; inputting wrong wiring according to the actual wrong wiring type of the electric energy meter, wherein two groups of wrong wiring types need to be input.
Such as: and if the wrong wiring types of the electric energy meter are Uab-Ia and Ucb-Ic, inputting the wiring types of the Uab-Ia and the Ucb-Ic twice on the keyboard of the special calculator for the electric energy metering. The input method comprises the following steps: pressing the Uab key and pressing the-Ia key, and finishing the input of the first group of wrong wiring types. Pressing down the Ucb key, pressing down the Ic key, and finishing the input of the second group of wrong wiring types. Pressing the equal number key to solve the correction coefficient of the wrong wiring type.
The third step: solving wrong wiring correction coefficients
After pressing the equal sign key in the second step, the display screen displays the requirement of inputting the power factor angle at the moment. Sixthly, if the power factor angle is input, if 30 degrees, then 30 degrees are input on the keyboard, then the power factor angle displayed by the display is equal to 30, then the correction coefficient solving key K is pressed, the first row of the display displays the correction coefficient value K =3, and the second row displays the correction coefficient solving formula, namely, under the wrong wiring types of Uab-Ia and Ucb Ic, the correction coefficient calculated according to the corresponding correction coefficient solving formula is K = 3.
The fourth step: solving electric quantity to be withdrawn and compensated
Pressing an error electric quantity solving key W, displaying and requiring the input of the error electric quantity (namely the error accumulated electric quantity displayed by the electric energy meter during the wrong wiring period) by a display, if the accumulated error electric quantity is 5000kWh, inputting the error electric quantity 5000kWh on a keyboard, displaying W =5000 on the second line of the display, pressing a key with the same sign, displaying a compensation electric quantity calculation formula on the first line of the display, displaying delta W =10000 on the second line, and calculating the electric quantity to be compensated by the calculator, namely the compensation electric quantity 10000 kWh. And when the error electric quantity solving calculation is finished, a clear key C can be pressed to restore to the initial state, and the next group of calculation is carried out.
In order to better guide the operation of returning and supplementing the electric quantity and test whether the equipment meets the target requirement, the calculation result of the special calculator for electric energy metering is compared with the calculation result of a formula calculation method for testing.
Selected power factor angle equals 30, cumulative error charge W =5000 kWh. Respectively calculating by using a formula calculation method and a special calculator for electric energy metering, and comparing two obtained results, wherein the comparison results are shown in the following table:
from the above table, it can be known that the electric quantity to be compensated can be accurately calculated only by inputting the existing wrong wiring type into the calculator in a standard manner, the accuracy rate reaches 100%, and the set target is completely realized.
Claims (10)
1. A special calculator for electric quantity compensation is characterized by comprising a hardware system and a software system, wherein the hardware system comprises a single chip microcomputer, a key unit, a display unit and a power supply; the software system is integrated in the memory of the single chip microcomputer and comprises display software, keyboard software, mathematical operation software, wrong wiring mode database software, wrong electric quantity compensation calculation software, anti-interference software and monitoring software.
2. The special calculator for electric quantity compensation according to claim 1, wherein the single chip microcomputer is combined with keyboard input software, output display software, error electric quantity correction coefficient solving software and error electric quantity compensation calculating software, and performs parameter input and calculation result output according to input mode, output mode and requirement of special requirement of error electric quantity compensation calculation, thereby completing the function of error electric quantity compensation calculation.
3. The special calculator of claim 2, wherein the key unit is configured to perform the input of a wrong connection mode, the input of a wrong electric quantity value during the wrong connection, the input of a power factor angle phi required for power factor calculation during the solving process of the correction coefficient of the wrong connection mode, and the calculation and display of the correction coefficient K.
4. The special calculator for electric quantity compensation according to claim 3, wherein the key unit is designed as a dual-function key, and the conversion between the first function and the second function of the dual-function key is realized by combining software and hardware; manual switching is not required.
5. The special calculator of claim 4, wherein the key is operated in a "one-way" manner, that is: the method specifically comprises the following steps that the current input parameter is only valid, the next step of input parameter prompt and the shielding input of other keys are invalid: when the current parameter key needing to be input is pressed down effectively, the current key value parameter can be effectively input, and the other keys are invalid, the operation of the step is completed, the next step of inputting the parameter content is automatically prompted immediately, the keyboard required by the next step of inputting the parameter content is pressed down, the corresponding key value parameter can be effectively input, and other keys are shielded.
6. The special calculator of claim 5, wherein the keyboard software is capable of automatically controlling and guiding to automatically perform automatic conversion of wrong wiring mode, Arabic numbers, correction coefficients, power to be removed and supplemented, and the like according to the power to be removed and supplemented calculation process and steps without considering complicated conversion relationships and operations among the wrong wiring mode, the Arabic numbers, the correction coefficients, the power to be removed and supplemented, and the like by a worker.
7. The special calculator for decreasing and supplementing electric quantity according to claim 6, wherein the mathematical operation software is used for performing algebraic operation, floating-point operation, function operation, logarithm operation and exponential operation;
the method mainly comprises the operation work of addition, subtraction, multiplication, division and squaring, cubic, evolution, logarithm, exponent and trigonometric functions, and the intermediate operation of calculating the back-compensation electric quantity is completed.
8. The method for calculating the electric quantity compensation by adopting the calculator is characterized in that the special calculator for calculating the electric quantity compensation according to any one of claims 1 to 7 is adopted, and comprises the following steps:
the first step is as follows: turning on a power switch, and enabling the calculator to enter an initial state, namely an input mode of a wrong wiring type;
the second step is that: inputting a wrong wiring type; inputting A, C two-phase wrong wiring types, pressing an equal-number key, and judging the input wrong wiring types by wrong wiring mode database software;
the third step: solving a wrong wiring correction coefficient; inputting a power factor angle measured on site, pressing a K key, calling a corresponding K solving formula of wrong wiring mode database software, and calculating a K value;
the fourth step: solving the power quantity to be withdrawn and compensated; pressing down an error electric quantity solving key W, inputting error electric quantity, pressing down an equal sign key, and calculating to obtain the electric quantity to be returned and compensated.
9. The method of claim 8, wherein in the second step, before the input is completed, the input is incorrect and can not be changed, and the input is restarted after shutdown; after the input is finished, pressing an equal-number key, judging the input wrong wiring type by wrong wiring mode database software, calling the wrong wiring mode data if the input is correct, and automatically restoring the calculator to the initial state if the input wrong wiring type does not exist, and inputting again; if the input wrong wiring type exists but is not the type which is required to be input, the input is in an input completion state, a clear key can be pressed, the initial state of the power-on is recovered, and the input can be performed again;
when the input is finished, only the equal-sign key is pressed to be effective and can be operated, and other keys are shielded and are pressed to be ineffective;
in the third step, after the power factor angle is input, only the K key of the correction coefficient is pressed to be valid, other keys are shielded, and the keys are pressed to be invalid; after a correction coefficient solving key K is pressed, if the display displays Erorr, the wrong wiring mode is shown, and the electric energy meter stops running;
and in the fourth step, when the correction coefficient K is obtained by solving and is displayed on a display, only the W key of the error electric quantity solving key is valid, the W key is pressed down, the error electric quantity solution which needs to be retreated and compensated is carried out, and other keys are shielded and pressed down to be invalid.
10. The method of claim 9, wherein the clear key C can be cleared only after the A, C two-phase wrong connection type is input and after the wrong power to be cleared is calculated, the clear key C returns to the original state after the clear key C is cleared, other links are invalid by being pressed, and the power is shut down, restarted and re-input if the links need to be modified.
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| CN202111640209.0A CN114356832A (en) | 2021-12-30 | 2021-12-30 | Special calculator for electric quantity compensation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111640209.0A CN114356832A (en) | 2021-12-30 | 2021-12-30 | Special calculator for electric quantity compensation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116775731A (en) * | 2023-08-25 | 2023-09-19 | 安徽南瑞中天电力电子有限公司 | Sliding window-based calculation method for fault-connection trace-back electric quantity of three-phase electric energy meter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103870432A (en) * | 2013-11-27 | 2014-06-18 | 国家电网公司 | Special computer for electric energy metering |
| CN104991152A (en) * | 2015-06-24 | 2015-10-21 | 国家电网公司 | Method and device for analyzing wrong wiring of three-phase three-wire electric energy metering device |
| CN113655430A (en) * | 2021-08-19 | 2021-11-16 | 国网湖北省电力有限公司随州供电公司 | Method for monitoring and automatically judging three-phase three-wire wrong wiring in batch |
-
2021
- 2021-12-30 CN CN202111640209.0A patent/CN114356832A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103870432A (en) * | 2013-11-27 | 2014-06-18 | 国家电网公司 | Special computer for electric energy metering |
| CN104991152A (en) * | 2015-06-24 | 2015-10-21 | 国家电网公司 | Method and device for analyzing wrong wiring of three-phase three-wire electric energy metering device |
| CN113655430A (en) * | 2021-08-19 | 2021-11-16 | 国网湖北省电力有限公司随州供电公司 | Method for monitoring and automatically judging three-phase three-wire wrong wiring in batch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116775731A (en) * | 2023-08-25 | 2023-09-19 | 安徽南瑞中天电力电子有限公司 | Sliding window-based calculation method for fault-connection trace-back electric quantity of three-phase electric energy meter |
| CN116775731B (en) * | 2023-08-25 | 2023-11-03 | 安徽南瑞中天电力电子有限公司 | Sliding window-based calculation method for fault-connection trace-back electric quantity of three-phase electric energy meter |
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Application publication date: 20220415 |