CN118232422A - Load adjusting method and device for generator set - Google Patents

Abstract

The disclosure provides a load adjusting method and device for a generator set, and relates to the technical field of automatic power generation control of the generator set. The method comprises the following steps: acquiring the unit capacity and the minimum load threshold of each of the N generator sets, and acquiring the current automatic power generation control AGC load target total value; determining a current first load target value of each generator set based on the AGC load target total value and the set capacity of each generator set; and determining the current AGC load target value of each generator set based on the current first load target value, the minimum load threshold value and the last AGC load target value of each generator set, and carrying out load adjustment according to the current AGC load target value of each generator set. The method and the device can keep the stability of the output and the smoothness of the output change, meet the requirements of the response time, the adjustment speed and the adjustment precision of AGC load adjustment, enable the generator set to keep the stability of the output and the smoothness of the output change, and improve the operation efficiency of the generator set.

Description

Load adjusting method and device for generator set

Technical Field

The disclosure relates to the technical field of automatic power generation control of generator sets, in particular to a load adjusting method and a load adjusting device of a generator set.

Background

In the related art, the load adjustment of the generator set can adjust the output power of the generator set according to the actual load demand of the power system, so that the power supply can meet the user demand and balance with the load is maintained. When the load increases, the generator set needs to increase the output power; when the load decreases, the generator set needs to reduce the output power. By means of load regulation, power supply and demand balance of a power grid can be ensured, overload or underload conditions are avoided, and stable operation of a power system is maintained. The load adjustment of the generator set can also adjust the frequency and voltage of the power system. The frequency and voltage of the power system will decrease as the system load increases, and will increase as the system load decreases. Through load adjustment, the output power of the generator set can be adjusted in time, so that the frequency and the voltage are kept in a reasonable range, and the stability of power supply and the normal operation of electrical equipment are ensured.

How to meet the response time, the adjustment speed and the adjustment precision of AGC load adjustment, so that the generator set keeps the stability of output and the smoothness of output change, and the operation efficiency of the generator set is improved, and the method has become one of important research directions.

Disclosure of Invention

The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art. To this end, it is an object of the present disclosure to propose a method of load regulation of a generator set.

A second object of the present disclosure is to propose a load adjusting device of a generator set.

A third object of the present disclosure is to propose an electronic device.

A fourth object of the present disclosure is to propose a non-transitory computer readable storage medium.

A fifth object of the present disclosure is to propose a computer programme product.

To achieve the above object, an embodiment of a first aspect of the present disclosure provides a load adjustment method for a generator set, including:

acquiring the unit capacity and the minimum load threshold of each of N generator sets, and acquiring the current automatic power generation control AGC load target total value, wherein N is an integer greater than 2;

Determining a current first load target value of each generator set based on the AGC load target total value and the set capacity of each generator set;

And determining the current AGC load target value of each generator set based on the current first load target value, the minimum load threshold value and the last AGC load target value of each generator set, and carrying out load adjustment according to the current AGC load target value of each generator set.

In the embodiment of the disclosure, based on the AGC load target total value and the unit capacity of each generator unit, the current first load target value of each generator unit is determined, based on the current first load target value, the minimum load threshold and the last AGC load target value of each generator unit, the current AGC load target value of each generator unit is determined, and load adjustment is performed according to the current AGC load target value of each generator unit, so that the stability of output and the smoothness of output change can be maintained, the response time, the adjustment rate and the adjustment precision of AGC load adjustment are met, the stability of output and the smoothness of output change are maintained for the generator units, and the operation efficiency of the generator unit is improved.

To achieve the above object, a second aspect of the present disclosure provides a load adjustment device for a generator set, including:

The acquisition module is used for acquiring the unit capacity and the minimum load threshold value of each of the N generator sets and acquiring the current automatic power generation control AGC load target total value, wherein N is an integer greater than 2;

The determining module is used for determining a current first load target value of each generator set based on the AGC load target total value and the set capacity of each generator set;

And the adjusting module is used for determining the current AGC load target value of each generator set based on the current first load target value, the minimum load threshold value and the last AGC load target value of each generator set, and carrying out load adjustment according to the current AGC load target value of each generator set.

To achieve the above object, an embodiment of a third aspect of the present disclosure provides an electronic device, including:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of load regulation of a generator set provided in an embodiment of the first aspect of the present disclosure.

To achieve the above object, an embodiment of a fourth aspect of the present disclosure proposes a computer-readable storage medium having stored thereon computer instructions for causing a computer to execute a load adjustment method of a generator set according to the embodiment of the first aspect of the present disclosure.

To achieve the above object, an embodiment of a fifth aspect of the present disclosure proposes a computer program product comprising a computer program which, when executed by a processor, implements a load adjustment method for a generator set provided in an embodiment of the first aspect of the present disclosure.

Drawings

FIG. 1 is a flow chart of a method of load regulation of a genset in accordance with one embodiment of the disclosure;

FIG. 2 is a flow chart of a method of load regulation of a genset according to one embodiment of the disclosure;

FIG. 3 is a flow chart of a method of load regulation of a genset according to one embodiment of the disclosure;

FIG. 4 is a block diagram of a load regulation device of a generator set according to one embodiment of the present disclosure;

Fig. 5 is a schematic structural view of an electronic device according to an embodiment of the present disclosure.

Detailed Description

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

The following terms in the embodiments of the present disclosure are presented:

The automatic power generation control AGC (Automatic Generation Control) is an important function in the energy management system EMS, which controls the output of the fm unit to meet the changing customer power requirements and to bring the system to an economical operating state. In an electrical power system, AGC is a system that adjusts the active outputs of multiple generators of different power plants in response to changes in load.

A load adjusting method of a generator set and an apparatus thereof according to an embodiment of the present disclosure are described below with reference to the accompanying drawings.

FIG. 1 is a flow chart of a method of load regulation of a genset according to one embodiment of the present disclosure, as shown in FIG. 1, the method comprising the steps of:

s101, acquiring the unit capacity and the minimum load threshold of each of the N generator sets, and acquiring the current automatic power generation control AGC load target total value.

The generator set in the embodiment of the disclosure is an AGC generator set, that is, a generator set capable of automatically adjusting output power. Wherein N is an integer greater than 2, and the AGC load target total value is a sum of the monitored power system load demands.

In the embodiment of the disclosure, the minimum load threshold refers to a set minimum limit value, that is, a single machine minimum load limit, and optionally, in the embodiment of the disclosure, the unit capacity and the minimum load threshold are in positive correlation, that is, for each generator unit, the larger the unit capacity, the larger the corresponding minimum load threshold.

Taking N as 4 as an example for illustration, the unit capacity of the No. 1 generator set is 300MW, the minimum load threshold is 12MW, the unit capacities of the No. 2,3 and 4 generator sets are 250MW, and the minimum load threshold is 10MW.

S102, determining a current first load target value of each generator set based on the AGC load target total value and the set capacity of each generator set.

In some embodiments, the AGC load target total value is equally proportioned based on the unit capacity of each genset to determine a current first load target value for each genset. Taking the total AGC load value of 830MW and the unit capacities of 300MW,2, 3 and 4 of the No.1 generator set as an example for explanation, after the equal proportion distribution of the total AGC load value according to the unit capacities, the first load target value of 237.14MW of the No.1 generator set and the first load target value of 197.62MW of the No. 2, 3 and 4 generator set can be determined.

S103, determining the current AGC load target value of each generator set based on the current first load target value, the minimum load threshold value and the last AGC load target value of each generator set, and carrying out load adjustment according to the current AGC load target value of each generator set.

And distributing the target value of the AGC unit through the single-machine minimum load threshold limit, if the difference between the current AGC load target value and the last AGC load target value of one or more generator units is smaller than the minimum load threshold, selecting 1 generator unit with the smallest difference value of the AGC load target values, keeping the last AGC load target value unchanged, and not regulating, and distributing other generator units according to the unit capacity in equal proportion again until the difference between the current AGC load target value and the last AGC load target value of the generator units is larger than the minimum load threshold.

After determining the current AGC load target value of each generator set, an adjusting instruction can be generated according to the current AGC load target value of each generator set and sent to the generator set, and the output power of the generator set can be correspondingly adjusted after the generator set receives the adjusting instruction.

In the embodiment of the disclosure, based on the AGC load target total value and the unit capacity of each generator unit, the current first load target value of each generator unit is determined, based on the current first load target value, the minimum load threshold and the last AGC load target value of each generator unit, the current AGC load target value of each generator unit is determined, and load adjustment is performed according to the current AGC load target value of each generator unit, so that the stability of output and the smoothness of output change can be maintained, the adjustment rate and the adjustment precision of AGC load adjustment are met, the stability of output and the smoothness of output change are maintained for the generator units, and the operation efficiency of the generator unit is improved.

FIG. 2 is a flow chart of a method of load regulation of a genset according to one embodiment of the present disclosure, as shown in FIG. 2, including the steps of:

S201, obtaining the unit capacity and the minimum load threshold of each of N generator sets, and obtaining the current automatic power generation control AGC load target total value, wherein N is an integer greater than 2.

S202, determining a current first load target value of each generator set based on the AGC load target total value and the set capacity of each generator set.

The description of step S201 to step S202 may be referred to the relevant content in the above embodiment, and will not be repeated here.

S203, determining the absolute value of the difference between the current first load target value and the last AGC load target value of each generator set as a first difference.

In some embodiments, taking the current automatic power generation control AGC load target total value of 830MW, the current first load target value of No. 1 generator set of 237.14MW, the current first load target value of No. 2, 3, and No. 4 generator set of 197.62MW as an example, if the last AGC load target value of No. 1 generator set is 228.57MW,2, 3, and No. 4 generator set is 190.48MW, the first difference value of No. 1 generator set is 237.14-228.57 =8.57 MW, and the first difference value of No. 2, 3, and No. 4 generator set is 197.62-190.48 =7.14 MW.

S204, if the first difference value of each generator set is greater than or equal to the minimum load threshold value of the generator set, determining that the current first load target value of each generator set is the current AGC load target value.

Taking the minimum load threshold of the No. 1 generator set as 6MW, the minimum load threshold of the No. 2 generator set and the minimum load threshold of the No. 3 generator set as 5MW as an example, the No. 1 generator set has 8.57MW >6MW, the No. 2 generator set, the No. 3 generator set and the No. 4 generator set have 7.14MW >5MW, that is, the first difference value of each generator set is larger than the minimum load threshold of the No. 2 generator set, the current first load target value of each generator set is determined to be the current AGC load target value, that is, the current AGC load target value of the No. 1 generator set is determined to be 237.14MW, and the current AGC load target values of the No. 2 generator set, the No. 3 generator set and the No. 4 generator set are determined to be 197.62MW.

S205, if the first difference value of the generator set is smaller than the minimum load threshold of the generator set, determining a first generator set with the minimum first difference value from the generator sets, determining the current AGC load target value of the first generator set as the last AGC load target value of the first generator set, and determining that the first generator set does not participate in current load adjustment.

Taking the unit capacity of the No. 1 generator set as 300MW, the minimum load threshold as 12MW, the unit capacities of the No. 2,3 and 4 generator sets as 250MW, and the minimum load threshold as 10MW as an example for illustration, the No. 1 generator set has 8.57MW <12MW, the No. 2,3 and 4 generator sets have 7.14MW <10MW, that is, the first difference value of each generator set is smaller than the minimum load threshold of the generator set, and the first generator set with the minimum first difference value is determined in the generator sets.

In other embodiments, the adjustment direction of the generator set may also be obtained, and the generator set with the adjustment direction opposite to that of other generator sets in the whole plant may be determined as the first generator set.

In this embodiment of the disclosure, the first differences of the No. 2, 3, and 4 power generating sets are the same, that is, there are a plurality of power generating sets with the smallest first difference, in some embodiments, one power generating set may be selected randomly as the first power generating set, in some embodiments, priority is provided between each power generating set, and one power generating set may be selected as the first power generating set according to the priority.

Taking the No. 4 generator set as the first generator set for illustration, determining the current AGC load target value of the No. 4 generator set as the last AGC load target value, namely 190.48MW, and determining that the No. 4 generator set does not participate in current load adjustment.

S206, determining the difference value between the AGC load target total value and the AGC load target value of the last time of the first generator set as a first load target total value.

Since the No. 4 generator set does not participate in current load adjustment, the first load target total value of the No. 1,2 and 3 generator sets needs to be determined again, that is, the difference between the AGC load target total value and the last AGC load target value of the first generator set is taken as the first load target total value, in the embodiment of the present disclosure, the first load target total value of the No. 1,2 and 3 generator sets is 830MW-190.48 = 639.52MW.

S207, determining a current second load target value of each second generator set based on the first load target total value and the unit capacity of the second generator set, and determining the current AGC load target value of each second generator set based on the current second load target value, the minimum load threshold value and the last AGC load target value of each second generator set until the absolute value of the difference between the current load target value and the last AGC load target value of each second generator set is greater than or equal to the minimum load threshold value of the second generator set, so as to obtain the current AGC load target value of each generator set.

The second generator set is one of the N generator sets participating in current load adjustment. Because No. 4 generating set does not participate in current load adjustment, the second generating set includes No. 1, no. 2, no. 3 generating sets.

In the embodiment of the disclosure, the first load target total value is subjected to equal proportion distribution based on the unit capacity of the second generator set, and the current second load target value of each second generator set is determined, because the unit capacity of the No. 1 generator set is 300MW, the unit capacities of the No. 2 and 3 generator sets are 250MW, the remaining 639.52MW load is used for adjusting the No. 1, 2 and 3 generator sets after equal proportion distribution, the current second load target value of the No. 1 generator set is 239.82mw, the current second load target value of the No. 2 and 3 generator sets is 199.85MW, in addition, because the No. 1 generator set has 239.82-228.57 =11.25 MW, the difference absolute value between the current second load target value of the No. 1 generator set and the last AGC load target value is smaller than the minimum load threshold of the No. 2, that is, the current second load target value of the No. 3 generator sets is larger than the current load target value of the No. 2, that is larger than the current load target value of the No. 35, that is larger than the current load of the No. 2, and No. 3 generator sets are continuously determined, that the difference absolute value between the current second load target value of the No. 1 and the last AGC load target value of the No. 3 is smaller than the current load threshold value of the No. 35, and No. 2 and No. 35 is continuously higher than the current load of the generator set is determined. The method comprises the steps of distributing the set capacity of the No. 1 and the set capacity of the No. 2 set in equal proportion to 449.04MW, wherein the second load target value of the No. 1 set after distribution is 244.93MW, and the second load target value of the No. 2 set is 204.11MW, and the distribution condition is met because the No. 1 set has 244.93-228.57 =16.36 MW,16.36MW >12MW, that is, the absolute value of the difference value between the current second load target value and the last AGC load target value of the No. 1 set is larger than the minimum load threshold of the No. 1 set, and the No. 2 set has 204.11-190.48 =13.63 MW,13.63MW >10MW, that is, the absolute value of the difference value between the current second load target value and the last AGC load target value of the No. 2 set is larger than the minimum load threshold of the No. 2 set.

Finally, the current AGC load target value of the generator set No.1 is 244.93MW, the current AGC load target value of the generator set No. 2 is 204.11MW, and the current AGC load target value of the generator set No. 3 and 4 is 190.48MW.

And S208, carrying out load adjustment according to the current AGC load target value of each generator set.

The description of step S208 may be referred to the relevant content in the above embodiment, and will not be repeated here.

In the embodiment of the disclosure, the absolute value of the difference between the current first load target value and the last AGC load target value of each generator set is determined to be the first difference, and if the first difference of each generator set is greater than or equal to the minimum load threshold of the generator set, the current first load target value of each generator set is determined to be the current AGC load target value, so that the stability of output and the smoothness of output change can be maintained, and the adjustment speed and the adjustment precision of AGC load adjustment are met.

In the embodiment of the disclosure, if the first difference value of the generator set is smaller than the minimum load threshold of the generator set, determining that the current AGC load target value of the first generator set with the minimum first difference value is the last AGC load target value of the first generator set from the generator sets, determining that the first generator set does not participate in current load adjustment, determining that the difference value between the AGC load target total value and the last AGC load target value of the first generator set is the first load target total value, continuously determining the current second load target value of each second generator set based on the first load target total value and the unit capacity of the second generator set, and determining the current AGC load target value of each second generator set based on the current second load target value, the minimum load threshold and the last AGC load target value of each second generator set until the absolute value of the difference value between the current load target value of each second generator set and the last AGC load target value is greater than or equal to the minimum load threshold of the second generator set, and obtaining the current AGC load target value of each second generator set. The method has the advantages that the method has various load distribution modes such as proportional distribution according to capacity, optimal distribution according to equal consumption and micro-increment rate, and the like, the unit adjustment times are minimum under the condition of guaranteeing the overall adjustment performance, the generator unit can keep the stability of output and the smoothness of output change, and the operation efficiency of the generator unit is improved.

FIG. 3 is a flow chart of a method of load regulation of a genset according to one embodiment of the present disclosure, as shown in FIG. 3, including the steps of:

s301, acquiring the unit capacity and the minimum load threshold of each of N generator sets, and acquiring the current automatic power generation control AGC load target total value, wherein N is an integer greater than 2.

S302, determining a current first load target value of each generator set based on the AGC load target total value and the set capacity of each generator set.

S303, determining the current AGC load target value of each generator set based on the current first load target value, the minimum load threshold value and the last AGC load target value of each generator set.

The description of step S301 to step S303 may refer to the relevant content in the above embodiment, and will not be repeated here.

S304, determining the load adjusting direction of each generator set according to the second difference value of the current AGC load target value and the last AGC load target value of each generator set.

In some embodiments, AGC genset adjustment direction must be consistent when no AGC genset passes through the vibration region in order to reduce unwanted fluctuations in plant load.

In the embodiment of the disclosure, the load adjustment direction of the generator set is determined according to the second difference value between the current AGC load target value and the last AGC load target value of the generator set, the load adjustment direction of the generator set is determined to be positive in response to the second difference value of the generator set being a positive number, and the load adjustment direction of the generator set is determined to be opposite in response to the second difference value of the generator set being a negative number.

S305, in response to the opposite load adjustment directions in the generator sets, correcting the current AGC load target value of each generator set according to the AGC load target total value, the last AGC load target value of each generator set and the set capacity.

And in response to the fact that the load adjusting directions of the N generator sets simultaneously exist in the positive direction and the negative direction, determining the first number of third generator sets with the load adjusting directions being the positive direction and the second number of fourth generator sets with the load adjusting directions being the negative direction in the N generator sets, and determining the generator set corresponding to the minimum value in the first number and the second number as the fifth generator set.

And for a sixth generator set with the largest absolute value of the second difference value in the fifth generator set, updating the current AGC load target value of the sixth generator set to the AGC load target value of the last time, and determining the difference value between the AGC load target total value and the AGC load target value of the last time of the sixth generator set to be the second load target total value.

And determining a current third load target value of each seventh generator set based on the second load target total value and the set capacity of each seventh generator set, continuously determining a load adjustment direction of each seventh generator set according to a third difference value between the third load target value of each seventh generator set and the last AGC load target value, and executing correction of the AGC load target value of the seventh generator set until no opposite load adjustment direction exists in the generator sets.

The seventh generator set is a generator set except the sixth generator set in the N generator sets.

That is, in the embodiment of the disclosure, if there is a generator set adjusting direction opposite to the adjusting direction of other generator sets in the whole plant, 1 generator set with the largest reverse deviation amount is selected to keep the last AGC load target value unchanged, the adjustment is not performed, other generator sets continue to calculate new target values again according to the capacity equal proportion distribution principle, and so on, the above process is repeated until all the AGC generator set adjusting directions are consistent with or not adjusted with the adjusting directions of other generator sets in the whole plant, then the current AGC load target value of each generator set is effective, and load adjustment is performed according to the current AGC load target value of each generator set.

S306, load adjustment is carried out according to the current AGC load target value of each generator set.

The description of step S306 may be referred to the relevant content in the above embodiment, and will not be repeated here.

In the embodiment of the disclosure, the load adjustment direction of each generator set is determined according to the second difference value between the current AGC load target value and the last AGC load target value of each generator set, the opposite load adjustment direction exists in the generator set, and the current AGC load target value of each generator set is corrected according to the AGC load target total value, the last AGC load target value and the unit capacity of each generator set, so that the load fluctuation of the generator set caused by two adjacent load adjustments can be reduced, the stability of output and the smoothness of output change are maintained, and the adjustment speed and the adjustment precision of AGC load adjustment are met.

In some embodiments, for ease of understanding, the method of load adjustment of the genset is strategically deduced in the form of a table, where the genset capacity No. 1 is 300MW, the genset capacity No. 2-4 is 250MW, the genset minimum load threshold No. 1 (stand-alone minimum load limit) is 12MW, and the genset minimum load threshold No. 2-4 (stand-alone minimum load limit) is 10MW, and the specific adjustment procedure is as follows:

TABLE 1

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Fig. 4 is a block diagram of a load adjustment device of a generator set according to an embodiment of the present disclosure, and as shown in fig. 4, a load adjustment device 400 of a generator set includes:

the acquiring module 410 is configured to acquire a unit capacity and a minimum load threshold of each of the N generator units, and acquire a current automatic power generation control AGC load target total value, where N is an integer greater than 2;

A determining module 420, configured to determine a current first load target value of each generator set based on the AGC load target total value and the set capacity of each generator set;

The adjusting module 430 is configured to determine a current AGC load target value of each generator set based on the current first load target value, the minimum load threshold value, and the last AGC load target value of each generator set, and perform load adjustment according to the current AGC load target value of each generator set.

In some implementations, the adjustment module 430 is further configured to:

Determining the absolute value of the difference between the current first load target value and the last AGC load target value of each generator set as a first difference;

And if the first difference value of each generator set is greater than or equal to the minimum load threshold value of the generator set, determining that the current first load target value of each generator set is the current AGC load target value.

In some implementations, the adjustment module 430 is further configured to:

If the first difference value of the generator set is smaller than the minimum load threshold of the generator set, determining that the current AGC load target value of the first generator set with the minimum first difference value is the last AGC load target value of the first generator set from the generator set, and determining that the first generator set does not participate in current load adjustment;

Determining the difference value between the AGC load target total value and the AGC load target value last time of the first generator set as a first load target total value;

determining a current second load target value of each second generator set based on the first load target total value and the unit capacity of the second generator set, and determining the current AGC load target value of each second generator set based on the current second load target value, the minimum load threshold value and the last AGC load target value of each second generator set until the absolute value of the difference between the current load target value and the last AGC load target value of each second generator set is greater than or equal to the minimum load threshold value of the second generator set, so as to obtain the current AGC load target value of each generator set;

the second generator set is one of the N generator sets participating in current load adjustment.

In some implementations, the adjustment module 430 is further configured to:

Determining the load adjusting direction of each generator set according to the second difference value between the current AGC load target value and the last AGC load target value of each generator set;

And in response to the opposite load adjustment directions in the generator sets, correcting the current AGC load target value of each generator set according to the AGC load target total value, the last AGC load target value of each generator set and the set capacity.

In some implementations, the adjustment module 430 is further configured to:

determining that the load adjustment direction of the generator set is a positive direction in response to the second difference value of the generator set being a positive number;

and determining that the load adjusting direction of the generator set is the opposite direction in response to the second difference value of the generator set being negative.

In some implementations, the adjustment module 430 is further configured to:

In response to the simultaneous existence of the positive direction and the negative direction of the load adjustment directions of the N generator sets, determining the first number of third generator sets with the positive direction of the load adjustment directions and the second number of fourth generator sets with the negative direction of the load adjustment directions in the N generator sets;

Determining the generator set corresponding to the minimum value in the first quantity and the second quantity as a fifth generator set;

aiming at a sixth generator set with the largest absolute value of the second difference value in the fifth generator set, updating the current AGC load target value of the sixth generator set into the last AGC load target value, and determining the difference value between the AGC load target total value and the last AGC load target value of the sixth generator set as the second load target total value;

Determining a current third load target value of each seventh generator set based on the second load target total value and the set capacity of each seventh generator set, continuing to determine a load adjustment direction of each seventh generator set according to a third difference value between the third load target value of each seventh generator set and the last AGC load target value, and executing correction of the AGC load target value of the seventh generator set until no opposite load adjustment direction exists in the generator sets;

the seventh generator set is a generator set except the sixth generator set in the N generator sets.

In some implementations, the determining module 420 is further configured to:

And carrying out equal proportion distribution on the AGC load target total value based on the unit capacity of each generator unit so as to determine the current first load target value of each generator unit.

In some embodiments, the unit capacity and the minimum load threshold are in positive correlation.

In the embodiment of the disclosure, based on the AGC load target total value and the unit capacity of each generator unit, the current first load target value of each generator unit is determined, based on the current first load target value, the minimum load threshold and the last AGC load target value of each generator unit, the current AGC load target value of each generator unit is determined, and load adjustment is performed according to the current AGC load target value of each generator unit, so that the stability of output and the smoothness of output change can be maintained, the response time, the adjustment rate and the adjustment precision of AGC load adjustment are met, the stability of output and the smoothness of output change are maintained for the generator units, and the operation efficiency of the generator unit is improved.

Based on the same application conception, the embodiment of the disclosure also provides electronic equipment.

Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. As shown in fig. 5, the electronic device 500 includes a memory 501, a processor 502, and a computer program product stored in the memory 501 and executable on the processor 502, and when the processor executes the computer program, the aforementioned method for adjusting the load of the generator set is implemented.

In order to implement the above-described embodiments, the present disclosure also proposes a computer-readable storage medium in which computer-executable instructions are stored, which when executed by a processor are configured to implement the load adjustment method of the generator set provided in the foregoing embodiments.

In order to implement the above embodiments, the present disclosure also proposes a computer program product comprising a computer program which, when executed by a processor, implements the load adjustment method of a generator set provided by the foregoing embodiments.

The processes of collecting, storing, using, processing, transmitting, providing, disclosing and the like of the personal information of the user involved in the present disclosure all conform to the regulations of the relevant laws and regulations and do not violate the public order colloquial.

It should be noted that personal information from users should be collected for legitimate and reasonable uses and not shared or sold outside of these legitimate uses. In addition, such collection/sharing should be performed after receiving user informed consent, including but not limited to informing the user to read user agreements/user notifications and signing agreements/authorizations including authorization-related user information before the user uses the functionality. In addition, any necessary steps are taken to safeguard and ensure access to such personal information data and to ensure that other persons having access to the personal information data adhere to their privacy policies and procedures.

The present disclosure contemplates embodiments that may provide a user with selective prevention of use or access to personal information data. That is, the present disclosure contemplates that hardware and/or software may be provided to prevent or block access to such personal information data. Once personal information data is no longer needed, risk can be minimized by limiting data collection and deleting data. In addition, personal identification is removed from such personal information, as applicable, to protect the privacy of the user.

In the foregoing descriptions of embodiments, descriptions of the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present disclosure in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.

Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.

It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.

Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.

Furthermore, each functional unit in the embodiments of the present disclosure may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present disclosure.

Claims (9)

1. A method of load regulation of a generator set, comprising:

Acquiring the unit capacity and the minimum load threshold of each of N generator sets, and acquiring the current automatic power generation control AGC load target total value, wherein N is an integer greater than 2;

Determining a current first load target value for each of the gensets based on the AGC load target total value and the set capacity for each of the gensets;

determining a current AGC load target value of each generator set based on the current first load target value, the minimum load threshold and the last AGC load target value of each generator set, and carrying out load adjustment according to the current AGC load target value of each generator set;

wherein after determining the current AGC load target value of each generator set, the method further comprises:

Determining the load adjusting direction of each generator set according to a second difference value between the current AGC load target value and the last AGC load target value of each generator set;

And in response to the opposite load adjustment directions in the generator sets, correcting the current AGC load target value of each generator set according to the AGC load target total value, the AGC load target value last time of each generator set and the set capacity.

2. The method of claim 1, wherein said determining the current AGC load target value for each of said gensets based on the current first load target value, said minimum load threshold value, and a last AGC load target value for each of said gensets comprises:

Determining the absolute value of the difference value between the current first load target value and the last AGC load target value of each generator set as a first difference value;

and if the first difference value of each generator set is greater than or equal to the minimum load threshold value of the generator set, determining that the current first load target value of each generator set is the current AGC load target value.

3. The method as recited in claim 2, further comprising:

If the first difference value of the generator set is smaller than the minimum load threshold of the generator set, determining a first generator set with the minimum first difference value from the generator sets, determining the current AGC load target value of the first generator set as the AGC load target value of the first generator set last time, and determining that the first generator set does not participate in current load adjustment;

Determining a difference value between the AGC load target total value and the AGC load target value last time of the first generator set as a first load target total value;

Continuing to determine a current second load target value of each second generator set based on the first load target total value and the unit capacity of the second generator set, and determining the current AGC load target value of each second generator set based on the current second load target value, the minimum load threshold and the last AGC load target value of each second generator set until the absolute value of the difference between the current load target value of each second generator set and the last AGC load target value is greater than or equal to the minimum load threshold of the second generator set, so as to obtain the current AGC load target value of each generator set;

the second generator set is the generator set participating in current load adjustment in the N generator sets.

4. The method of claim 1, wherein said determining a load adjustment direction for each of said gensets based on a second difference between a current AGC load target value and a last AGC load target value for each of said gensets comprises:

determining that the load adjustment direction of the generator set is a positive direction in response to the second difference value of the generator set being a positive number;

And determining that the load adjustment direction of the generator set is the opposite direction in response to the second difference value of the generator set being negative.

5. The method of any of claims 1-4, wherein said modifying the current AGC load target value for each of said gensets in response to the presence of an opposite load adjustment direction in said gensets based on said AGC load target total value, the last AGC load target value for each of said gensets, and said set capacity, comprises:

Determining a first number of third generator sets with the load adjusting direction being the positive direction and a second number of fourth generator sets with the load adjusting direction being the opposite direction in the N generator sets in response to the load adjusting directions of the N generator sets simultaneously having the positive direction and the opposite direction;

Determining the generator set corresponding to the minimum value in the first number and the second number as a fifth generator set;

updating the current AGC load target value of the sixth generator set to the AGC load target value of the last time aiming at a sixth generator set with the largest absolute value of the second difference value in the fifth generator set, and determining that the difference value between the AGC load target total value and the AGC load target value of the last time of the sixth generator set is the second load target total value;

Determining a current third load target value of each seventh generator set based on the second load target total value and the set capacity of each seventh generator set, continuing to determine a load adjustment direction of each seventh generator set according to a third difference value of the third load target value of each seventh generator set and the last AGC load target value, and performing correction of the AGC load target value of the seventh generator set until no opposite load adjustment direction exists in the generator sets;

Wherein the seventh generator set is the generator set other than the sixth generator set of the N generator sets.

6. The method of any of claims 1-4, wherein said determining a current first load target value for each of said gensets based on said AGC load target total value and said set capacity for each of said gensets comprises:

And carrying out equal proportion distribution on the AGC load target total value based on the unit capacity of each generator unit so as to determine the current first load target value of each generator unit.

7. The method of any of claims 1-4, wherein the unit capacity and the minimum load threshold are in positive correlation.

8. A load adjustment device for a generator set, comprising:

The acquisition module is used for acquiring the unit capacity and the minimum load threshold value of each of N generator sets and acquiring the current automatic power generation control AGC load target total value, wherein N is an integer greater than 2;

A determining module, configured to determine a current first load target value of each of the generator sets based on the AGC load target total value and the set capacity of each of the generator sets;

And the adjusting module is used for determining the current AGC load target value of each generator set based on the current first load target value, the minimum load threshold and the last AGC load target value of each generator set, and carrying out load adjustment according to the current AGC load target value of each generator set.

9. An electronic device, comprising:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-7.