CN115639395B - Electronic load parallel operation current echo algorithm, parallel operation system and electronic equipment - Google Patents
Electronic load parallel operation current echo algorithm, parallel operation system and electronic equipment Download PDFInfo
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Abstract
The invention discloses an electronic load parallel operation current echo algorithm, a parallel operation system and electronic equipment, which comprise: acquiring a target current value, wherein the target current value is an output current value required by the parallel operation system; acquiring a parallel operation system linear relation, wherein the parallel operation system linear relation is a linear relation between a target DAC input value and a target current value, the target DAC input value is a DAC input value corresponding to the target current, and the target DAC input value is obtained according to the parallel operation system linear relation and the target current value; acquiring a host linear relation, wherein the host linear relation is the linear relation between the DAC input value of the host and the output current value of the host, the target DAC input value is used as the DAC input value of the host, and the output current value of the host is obtained according to the host linear relation; and acquiring the reproduction current value of the host, and acquiring the total reproduction current value of the parallel operation system according to the output current value of the host and the proportional relation between the reproduction current value of the host and the target current value as well as the total reproduction current value of the parallel operation system.
Description
Technical Field
The invention relates to the technical field of electronic load parallel operation, in particular to an electronic load parallel operation current echo algorithm, a parallel operation system and electronic equipment.
Background
The output power, current and voltage of single equipment such as electronic load are limited, if high power or large current needs to be provided, the power of the single equipment cannot be increased infinitely, and parallel operation between the equipment is needed to meet the requirement. Due to the parallel operation characteristic, the current after parallel operation is the sum of all parallel operation equipment currents. In the prior art, the parallel operation system comprises a host and slave machines, the host obtains the number of the slave machines, and the total echo current is obtained by multiplying the current of the host by the number of the slave machines.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an electronic load parallel operation current echo algorithm, a parallel operation system and electronic equipment, which can solve the problem that the conventional parallel operation current echo algorithm cannot obtain accurate total echo current.
The parallel operation current echo algorithm of the electronic load according to the embodiment of the first aspect of the present invention is applied to a parallel operation system, the parallel operation system includes a master and a slave connected in parallel, and includes: acquiring a target current value, wherein the target current value is an output current value required by the parallel operation system; acquiring a parallel operation system linear relation, wherein the parallel operation system linear relation is a linear relation between a target Digital-to-analog converter (DAC) input value and a target current value, the target DAC input value is a DAC input value corresponding to the target current, and the target DAC input value is obtained according to the parallel operation system linear relation and the target current value; acquiring a host linear relation, wherein the host linear relation is the linear relation between the DAC input value of the host and the output current value of the host, the target DAC input value is used as the DAC input value of the host, and the output current value of the host is obtained according to the host linear relation; and acquiring the echo current value of the host, and acquiring the total echo current value of the parallel operation system according to the output current value of the host and the proportional relation between the echo current value of the host and the target current value as well as the total echo current value of the parallel operation system.
The electronic load parallel operation current echo algorithm according to the embodiment of the first aspect of the present invention has at least the following beneficial effects:
the method comprises the steps of obtaining a target current value which is an output current value required by a parallel system, obtaining a linear relation of the parallel system, obtaining a target DAC input value according to the linear relation of the parallel system and the target current value, obtaining a linear relation of a host, obtaining an output current value of the host by taking the target DAC input value as the DAC input value of the host and according to the linear relation of the host, obtaining a playback current value of the host, obtaining a total playback current value of the parallel system according to the proportional relation of the output current value of the host and the playback current value of the host to the target current value and the total playback current value of the parallel system, correcting the output current value of the host through the linear relation of the parallel system because the ratio of the output current value of the host to the playback current value of the host is equal to the ratio of the target current value to the total playback current value of the parallel system, overcoming a current error caused by the host, and combining the playback current value of the host and the target current value, so as to accurately obtain the total playback current value of the parallel system.
According to some embodiments of the invention, the linear relationship of the parallel operation system is calculated by the formula:
wherein, in the process,
in order to target the DAC input value,
in order to obtain the target current value,
is the slope of the parallel-operation system,
the compensation value of the parallel operation system; the linear relationship of the host is calculated by the formula:
wherein, in the step (A),
is the DAC input value of the host computer,
is the output current value of the main machine,
is the slope of the host computer and,
is the compensation value of the host.
According to the inventionIn some embodiments, in the formula for calculating the linear relationship of the parallel operation system,
and
the calculation method comprises the following steps: acquiring slave linear relations which correspond to the slave units one by one to obtain slopes and compensation values of the slave units, wherein the slave linear relations are linear relations between DAC input values of the slave units and output current values of the slave units; calculating the slope of the parallel operation system according to the slopes of the master machine and the slaves; and calculating the compensation value of the parallel operation system according to the slope and the compensation value of the master and each slave.
According to some embodiments of the present invention, the obtaining of slave linear relationships corresponding to the slaves in a one-to-one manner to obtain slopes and compensation values of the slaves includes: inputting different DAC input values to each slave to obtain output current values corresponding to different DAC input values; and obtaining the slope and the compensation value of the slave according to the linear relation of the slave, different DAC input values and output current values corresponding to the different DAC input values.
According to some embodiments of the present invention, the calculation formula for calculating the slope of the parallel computer system according to the slopes of the master and the slaves is:
wherein, in the step (A),
and n is the sum of the number of the slaves corresponding to each slave.
According to some embodiments of the present invention, the calculation formula for calculating the compensation value of the parallel operation system according to the slope and the compensation value of the master and each slave is as follows:
wherein, in the step (A),
for each one isThe corresponding compensation value of the slave is set,
and n is the sum of the number of the slaves corresponding to each slave.
According to some embodiments of the present invention, the obtaining a total echoing current value of the parallel operation system according to a proportional relation between an output current value of the host and a proportional relation between a echoing current value of the host and a target current value and a total echoing current value of the parallel operation system includes: according to the formula:
and calculating to obtain the total echoing current value of the parallel operation system, wherein,
the total echogenicity current value,
The reproduction current value of the main machine,
A target current value,
Is the output current value of the host.
The parallel operation system according to the second aspect of the invention comprises: a host; a slave connected in parallel with the master; and the control module obtains a total echoing current value by adopting the electronic load parallel current echoing algorithm.
The parallel operation system according to the embodiment of the second aspect of the invention has at least the following advantages:
the method comprises the steps of obtaining a target current value which is an output current value required by a parallel system, obtaining a linear relation of the parallel system, obtaining a target DAC input value according to the linear relation of the parallel system and the target current value, obtaining a linear relation of a host, obtaining an output current value of the host by taking the target DAC input value as the DAC input value of the host and according to the linear relation of the host, obtaining a playback current value of the host, obtaining a total playback current value of the parallel system according to the proportional relation of the output current value of the host and the playback current value of the host to the target current value and the total playback current value of the parallel system, correcting the output current value of the host through the linear relation of the parallel system because the ratio of the output current value of the host to the playback current value of the host is equal to the ratio of the target current value to the total playback current value of the parallel system, overcoming a current error caused by the host, and combining the playback current value of the host and the target current value, so as to accurately obtain the total playback current value of the parallel system.
An electronic device according to an embodiment of the third aspect of the invention includes: at least one processor; at least one memory for storing at least one program; when at least one of the programs is executed by at least one of the processors, the electronic load parallel current echo algorithm is realized.
According to the electronic device of the embodiment of the third aspect of the invention, at least the following beneficial effects are achieved:
the method comprises the steps of obtaining a target current value which is an output current value required by a parallel system, obtaining a linear relation of the parallel system, obtaining a target DAC input value according to the linear relation of the parallel system and the target current value, obtaining a linear relation of a host, obtaining an output current value of the host by taking the target DAC input value as the DAC input value of the host and according to the linear relation of the host, obtaining a playback current value of the host, obtaining a total playback current value of the parallel system according to the proportional relation of the output current value of the host and the playback current value of the host to the target current value and the total playback current value of the parallel system, correcting the output current value of the host through the linear relation of the parallel system because the ratio of the output current value of the host to the playback current value of the host is equal to the ratio of the target current value to the total playback current value of the parallel system, overcoming a current error caused by the host, and combining the playback current value of the host and the target current value, so as to accurately obtain the total playback current value of the parallel system.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a flow chart of an electronic load parallel current echo algorithm of the present invention;
FIG. 2 is a schematic diagram of a calculation formula of the parallel system linear relationship in the parallel current echo algorithm of the electronic load according to the present invention,
and
a flowchart of the calculation method of (2);
fig. 3 is a flowchart of obtaining slave linear relationships corresponding to slave units one to one in the electronic load parallel machine current echo algorithm of the present invention to obtain slopes and compensation values of the slave units;
fig. 4 is a schematic structural diagram of the parallel operation system of the present invention.
Reference numerals:
a host 100,
A slave 200.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to 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, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
As shown in fig. 1, the electronic load parallel current echo algorithm according to the embodiment of the first aspect of the present invention includes:
s100, obtaining a target current value, wherein the target current value is an output current value required by a parallel operation system;
s200, obtaining a parallel operation system linear relation, wherein the parallel operation system linear relation is a linear relation between a target DAC input value and a target current value, the target DAC input value is a DAC input value corresponding to the target current, and the target DAC input value is obtained according to the parallel operation system linear relation and the target current value;
s300, obtaining a host linear relation, wherein the host linear relation is a linear relation between the DAC input value of the host 100 and the output current value of the host 100, the target DAC input value is used as the DAC input value of the host 100, and the output current value of the host 100 is obtained according to the host linear relation;
s400, obtaining the reproduction current value of the host 100, and obtaining the total reproduction current value of the parallel operation system according to the output current value of the host 100 and the proportional relation between the reproduction current value of the host 100 and the target current value as well as the total reproduction current value of the parallel operation system.
It should be noted that the echo current value of the host 100 is acquired by an analog-to-digital converter in the host 100.
The method comprises the steps of obtaining a target current value which is an output current value required by a parallel system, obtaining a linear relation of the parallel system, obtaining a target DAC input value according to the linear relation of the parallel system and the target current value, obtaining a linear relation of a host, obtaining an output current value of the host 100 by taking the target DAC input value as the DAC input value of the host 100 and according to the linear relation of the host, obtaining a playback current value of the host 100, obtaining a total playback current value of the parallel system according to the proportional relation between the output current value of the host 100 and the playback current value of the host 100 and the target current value and the total playback current value of the parallel system, correcting the output current value of the host 100 through the linear relation of the parallel system, overcoming a current error caused by the host 100, and combining the playback current value of the host 100 and the target current value, so as to accurately obtain the total playback current value of the parallel system.
In step S200, the linear relationship of the parallel operation system is calculated as:
wherein, in the process,
for the target DAC input value(s),
in order to obtain the target current value,
is the slope of the parallel-operation system,
the compensation value of the parallel operation system;
in step S300, the calculation formula of the host linear relationship is:
wherein, in the step (A),
is the DAC input value of the host 100,
is the value of the output current of the host 100,
is the slope of the host 100 and,
is the compensation value of the host 100.
As shown in fig. 2, in step S200, in the calculation formula of the linear relationship of the parallel system,
and
the calculation method comprises the following steps:
s210, acquiring slave linear relations corresponding to the slave machines 200 one to obtain slopes and compensation values of the slave machines 200, wherein the slave linear relations are linear relations between DAC input values of the slave machines 200 and output current values of the slave machines 200;
s220, calculating the slope of the parallel operation system according to the slopes of the master 100 and the slaves 200;
and S230, calculating a compensation value of the parallel machine system according to the slope and the compensation value of the master machine 100 and each slave machine 200.
The slope of the parallel operation system is calculated through the slopes of the master 100 and the slaves 200, the compensation value of the parallel operation system is calculated through the slope and the compensation value of the master 100 and the slaves 200, and a linear relation of the parallel operation system is obtained.
As shown in fig. 3, in step S210, obtaining the slave linear relationship corresponding to each slave 200 one to obtain the slope and the compensation value of each slave 200 includes:
s211, inputting different DAC input values to each slave 200 to obtain output current values corresponding to different DAC input values;
s212, the slope and the compensation value of the slave 200 are obtained according to the linear relation of the slave, different DAC input values and output current values corresponding to the different DAC input values.
It is understood that the slope and compensation value of the master 100 are obtained in the same manner as those of the slave 200.
In step S220, the calculation formula for calculating the slope of the parallel computer system according to the slopes of the master 100 and the slaves 200 is:
wherein, in the step (A),
for the slope corresponding to each slave 200, n is the sum of the number of each slave 200.
In step S230, a calculation formula for calculating the compensation value of the parallel operation system according to the slope and the compensation value of the master 100 and each slave 200 is as follows:
wherein, in the step (A),
for the compensation value corresponding to each slave 200,
for the slope corresponding to each slave 200, n is the sum of the number of each slave 200.
In step S400, obtaining a total echo current value of the parallel operation system according to a proportional relationship between the output current value of the host 100 and the echo current value of the host 100 and the target current value and the total echo current value of the parallel operation system, includes:
according to the formula:
and calculating to obtain a parallel operation systemThe total echographic current value of (a), wherein,
the total echographic current value,
The reproduction current value of the main unit 100,
A target current value,
Is the output current value of the host 100.
As shown in fig. 4, the parallel operation system according to the second embodiment of the present invention includes: the system comprises a host 100, a slave 200 and a control module, wherein the slave 200 is connected with the host 100 in parallel, and the control module adopts the electronic load parallel machine current echo algorithm to obtain the total echo current value.
The method comprises the steps of obtaining a target current value which is an output current value required by a parallel system, obtaining a linear relation of the parallel system, obtaining a target DAC input value according to the linear relation of the parallel system and the target current value, obtaining a linear relation of a host, obtaining an output current value of the host 100 by taking the target DAC input value as the DAC input value of the host 100 and according to the linear relation of the host, obtaining a playback current value of the host 100, obtaining a total playback current value of the parallel system according to the proportional relation between the output current value of the host 100 and the playback current value of the host 100 and the target current value and the total playback current value of the parallel system, correcting the output current value of the host 100 through the linear relation of the parallel system, overcoming a current error caused by the host 100, and combining the playback current value of the host 100 and the target current value, so as to accurately obtain the total playback current value of the parallel system.
An electronic device according to an embodiment of the third aspect of the invention includes: at least one processor; at least one memory for storing at least one program; the at least one program, when executed by the at least one processor, implements an electronic load parallel current echo algorithm as described above.
The method comprises the steps of obtaining a target current value which is an output current value required by a parallel system, obtaining a linear relation of the parallel system, obtaining a target DAC input value according to the linear relation of the parallel system and the target current value, obtaining a linear relation of a host, obtaining an output current value of the host 100 by taking the target DAC input value as the DAC input value of the host 100 and according to the linear relation of the host, obtaining a playback current value of the host 100, obtaining a total playback current value of the parallel system according to the proportional relation between the output current value of the host 100 and the playback current value of the host 100 and the target current value and the total playback current value of the parallel system, correcting the output current value of the host 100 through the linear relation of the parallel system, overcoming a current error caused by the host 100, and combining the playback current value of the host 100 and the target current value, so as to accurately obtain the total playback current value of the parallel system.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and variations can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. Electronic load parallel operation current echo algorithm is applied to a parallel operation system, the parallel operation system comprises a host (100) and a slave (200) which are connected in parallel, and the parallel operation current echo algorithm is characterized by comprising the following steps:
acquiring a target current value, wherein the target current value is an output current value required by the parallel operation system;
acquiring a parallel operation system linear relation, wherein the parallel operation system linear relation is a linear relation between a target DAC input value and a target current value, the target DAC input value is a DAC input value corresponding to a target current, and a calculation formula of the parallel operation system linear relation is as follows:
wherein, in the step (A),
for the target DAC input value(s),
in order to obtain the target current value,
is the slope of the parallel-operation system,
obtaining a target DAC input value for the compensation value of the parallel system according to the linear relation of the parallel system and the target current value;
acquiring a host linear relation, wherein the host linear relation is a linear relation between a DAC (digital-to-analog converter) input value of the host (100) and an output current value of the host (100), and a calculation formula of the host linear relation is as follows:
wherein, in the step (A),
is the DAC input value of the host (100),
is the output current value of the main machine (100),
is the slope of the host (100),
taking the target DAC input value as the DAC input value of the host (100) as the compensation value of the host (100) and obtaining the output current value of the host (100) according to the host linear relation;
obtaining the reproduction current value of the host (100), and obtaining the reproduction current value of the host (100) according to the output current value of the host (100) and the reproduction current value of the host (100)Proportional relationship with target current value and total reproduction current value of parallel system:
and calculating to obtain the total echo current value of the parallel operation system, wherein,
the total echographic current value,
Is the reproduction current value of the main machine (100),
A target current value,
Is the output current value of the host machine (100).
2. The electronic load parallel current echo algorithm according to claim 1, wherein in the calculation formula of the linear relation of the parallel system,
and
the calculation method comprises the following steps:
acquiring slave linear relations corresponding to the slave machines (200) one by one to obtain the slope and the compensation value of each slave machine (200), wherein the slave linear relations are linear relations between DAC input values of the slave machines (200) and output current values of the slave machines (200);
calculating the slope of the parallel operation system according to the slopes of the master (100) and the slaves (200);
and calculating the compensation value of the parallel machine system according to the slope and the compensation value of the master machine (100) and each slave machine (200).
3. The electronic load parallel operation current echo algorithm according to claim 2, wherein the obtaining slave linear relations corresponding to the slaves (200) one to obtain the slope and the compensation value of each slave (200) comprises:
inputting different DAC input values to each slave (200) to obtain output current values corresponding to different DAC input values;
and obtaining the slope and the compensation value of the slave (200) according to the linear relation of the slave, different DAC input values and output current values corresponding to the different DAC input values.
4. The electronic load parallel current echo algorithm according to claim 2, wherein:
the calculation formula for calculating the slope of the parallel operation system according to the slopes of the master (100) and the slaves (200) is as follows:
wherein, in the step (A),
the slope corresponding to each slave (200) is defined, and n is the sum of the number of the slaves (200).
5. The electronic load parallel current echo algorithm according to claim 2, wherein:
the calculation formula for calculating the compensation value of the parallel machine system according to the slope and the compensation value of the master machine (100) and each slave machine (200) is as follows:
wherein, in the step (A),
a compensation value corresponding to each slave (200),
the slope corresponding to each slave (200) is n, which is the sum of the number of each slave (200).
6. Parallel machine system, its characterized in that includes:
a host (100);
a slave (200), said slave (200) being connected in parallel with said master (100);
the control module obtains a total echoed current value by adopting the electronic load parallel current echoing algorithm according to any one of claims 1 to 5.
7. An electronic device, comprising:
at least one processor;
at least one memory for storing at least one program;
the electronic load parallel current echo algorithm according to any one of claims 1 to 5 is implemented when at least one of the programs is executed by at least one of the processors.
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