CN114142752A - Power self-adaptive adjustment method of energy storage inverter power supply and computer readable storage medium - Google Patents
Power self-adaptive adjustment method of energy storage inverter power supply and computer readable storage medium Download PDFInfo
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- 230000009467 reduction Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000012216 screening Methods 0.000 abstract description 2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Dc-Dc Converters (AREA)
Abstract
The invention discloses a power self-adaptive adjustment method of an energy storage inverter power supply and a computer readable storage medium, and relates to the technical field of electrical variable adjustment. And then in the power slow loop regulation, a first alternative value is calculated through PI regulation, product operation and amplitude limiting treatment. In the power fast loop adjustment, a second alternative value is calculated by reducing the PWM duty ratio in a step-by-step manner through power comparison, or a third alternative value is calculated by reducing or increasing the PWM duty ratio through voltage comparison. And comparing the results of the power slow loop regulation and the power fast loop regulation, and screening out a smaller value as the actual output PWM duty ratio, so that the power regulation speed is accelerated, the reliability is ensured, and the purposes of regulating the output power and improving the load carrying capacity are achieved.
Description
Technical Field
The invention relates to the technical field of electrical variable adjustment, in particular to a power self-adaptive adjustment method of an energy storage inverter power supply and a computer readable storage medium.
Background
The conventional energy storage inverter power supply is generally in constant power output, when the energy storage inverter power supply supplies power for impact loads such as air conditioners, refrigerators and ice makers, or supplies power for ultra-high power loads, the condition that the output power is greater than the rated power easily occurs when the energy storage inverter power supply inverts the output power for supplying power, so that the energy storage inverter power supply can start an overload protection function, the energy storage inverter power supply can not drive the loads, the loads can not work, and inconvenience is brought to life of people. In order to overcome the over-high instantaneous output power and improve the loading capacity of the energy storage inverter power supply, a power self-adaptive adjustment scheme for the energy storage inverter power supply needs to be designed.
Disclosure of Invention
The invention provides a power self-adaptive adjusting method of an energy storage inverter power supply and a computer readable storage medium, and aims to solve the problems in the prior art.
The invention adopts the following technical scheme:
a power self-adaptive adjustment method of an energy storage inverter power supply comprises the steps of sampling output parameters of the energy storage inverter power supply after the inversion output of the energy storage inverter power supply is started; if the output power is larger than or equal to M1 times of rated power within the first preset continuous time T, performing a power regulation mode, wherein T, M1 are constant parameters which are larger than zero, and the power regulation mode comprises the following steps:
carrying out PI (proportional integral) regulation operation on the output parameter and the rated parameter, multiplying the output parameter by a coefficient, and carrying out amplitude limiting treatment to obtain a first alternative value of the inverter output PWM duty ratio;
if the output power is larger than or equal to M1 times of rated power within the first preset continuous time T, wherein M1 is a constant parameter, and M1 is greater than 0, a second alternative value of the inverter output PWM duty ratio is obtained by the following method: taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a preset percentage as a second alternative value of the inversion output PWM duty ratio;
and then, comparing the first alternative value with the second alternative value, and taking the smaller value of the first alternative value and the second alternative value as the actual inversion output PWM duty ratio for inversion output.
Further, in the power regulation mode, when the output power is less than or equal to the rated power, a third alternative value of the inverter output PWM duty ratio is obtained by the following method:
if the output voltage is less than or equal to (the rated voltage-the second voltage deviation value) and less than or equal to (the rated voltage + the first voltage deviation value), taking the inversion output PWM duty ratio of the current energy storage inverter power supply as the third alternative value;
if the output voltage is greater than or equal to (the rated voltage + the first voltage deviation value), taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a fourth preset percentage A4 as the third alternative value;
if the output voltage is less than or equal to (the rated voltage-second voltage deviation value), taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is increased according to a fifth preset percentage A5 as the third alternative value; wherein, A4 and A5 are constant parameters which are larger than zero, and 0% < A4< 100%, and 0% < A5< 100%;
and then, comparing the first alternative value with the third alternative value, and taking the smaller value of the first alternative value and the third alternative value as the actual inversion output PWM duty ratio for inversion output.
Further, in calculating the second selected value, the greater the difference between the output power and the rated power, the greater the percentage of reduction in the inverter output PWM duty cycle.
Further, the second alternative value is obtained by specifically:
when the output power is larger than or equal to M1 times of rated power within a first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a first preset percentage A1 as the second alternative value of the inversion output PWM duty ratio;
when the output power is larger than or equal to M2 times of rated power within the first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a second preset percentage A2 as the second alternative value of the inversion output PWM duty ratio;
when the output power is larger than or equal to M3 times of rated power within the first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a third preset percentage A3 as the second alternative value of the inversion output PWM duty ratio;
wherein, M1, M2, M3, A1, A2, A3, A4 and A5 are constant parameters which are all larger than zero, and 0< M1< M2< M3, 0% < A4, A5< A1< A2< A3< 100%.
As a specific design of the relevant parameters, T is 2(s), M1 is 1.1, a1 is 10%; m2 ═ 2, a2 ═ 20%; m3 ═ 4, A3 ═ 50%; u1 ═ U2 ═ 1(v), a4 ═ a5 ═ 2%.
Specifically, when the output power is larger than or equal to M1 times of rated power, the first timer of the energy storage inverter power supply starts to time, and the second timer is cleared; when the continuous duration of the timer I is larger than or equal to the first preset continuous duration T, the timing flag position of the energy storage inverter power supply is set to be 1, and a power regulation mode is entered; when the output power is less than or equal to the rated power, the first timer is cleared, and the second timer starts to time; and when the continuous duration of the second timer is greater than or equal to the first preset continuous duration T, the timing flag position of the energy storage inverter power supply is set to be 0, and the power regulation mode is exited.
Specifically, the output parameters include output voltage, output current, and output power; performing PI regulation operation on the output power and the rated power, multiplying the obtained value by a coefficient K1, and performing amplitude limiting treatment to obtain an output voltage given value; and performing PI regulation operation on the given value of the output voltage and the output voltage of the energy storage inverter power supply, multiplying the obtained value by a coefficient K2, performing amplitude limiting treatment to obtain a given value of current, performing PI regulation operation on the given value of the current and the output current of the energy storage inverter power supply, multiplying the obtained value by a coefficient K3, and performing amplitude limiting treatment to obtain the first alternative value.
A computer readable storage medium having stored thereon a computer program for implementing a power adaptive adjustment method for an energy storage inverter power supply as described in any one of the above.
From the above description of the structure of the present invention, it can be seen that the present invention has the following advantages:
firstly, the invention delays the first preset continuous time T to enter the power regulation mode after the energy storage inverter power supply is started, can well transit the instant impact during the starting of the impact type load, enables the impact type load or the high-power load exceeding the rated power to be normally started, and improves the loading capacity. In the power slow loop regulation mode, a first alternative value is obtained through PI regulation, product operation and amplitude limiting processing; in the power fast loop regulation mode, a second alternative value is calculated by reducing the PWM duty ratio in a stepped mode through power comparison, and power regulation speed is provided. And comparing the results of the power slow loop regulation and the power fast loop regulation, and screening out a smaller value as the actual output PWM duty ratio, so that the reliability is ensured while the power regulation speed is increased, the purposes of regulating the output power, considering the regulation speed and accuracy and improving the loading capacity are achieved.
Secondly, when the output power is lower than the rated power, a third alternative value is calculated by a power fast loop adjusting mode of reducing or improving the PWM duty ratio through voltage comparison, and then the third alternative value is compared with the first alternative value to screen out a smaller value as the actually output PWM duty ratio, so that the power adjusting process is further perfected and refined, and the reliability is improved.
Thirdly, according to the difference between the output power Pout and the rated power Prate, different adjusting ranges are set, and the adjusting efficiency is improved on the premise of ensuring effective adjustment.
Drawings
FIG. 1 is a block flow diagram of the present invention.
FIG. 2 is a flow chart of the power identification subsystem of the present invention.
FIG. 3 is a flow chart of the power slow loop throttling subsystem of the present invention.
FIG. 4 is a block diagram of the power fast loop adjustment subsystem according to the present invention.
Fig. 5 is a block diagram of a power adaptive adjustment system of an energy storage inverter according to the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 5, a power adaptive adjustment method for an energy storage inverter power supply includes the following steps:
step S1: and after the inversion output of the energy storage inverter power supply is started, sampling the output parameters of the energy storage inverter power supply. The output parameters mainly include output voltage Uinv, output current Iinv and output power Pout.
Step S2: and if the output power Pout is larger than or equal to M1 times of rated power Prate within the first preset continuous time T, the energy storage inverter power supply performs a power regulation mode, wherein T, M1 are constant parameters larger than zero.
As shown in fig. 1 to 5, specifically, the energy storage inverter power supply includes an inverter output module and a power identification subsystem, where the power identification subsystem mainly includes a data acquisition module iii, a data processing module iii, a timer i, a timer ii, and a control management module. And the third data acquisition module acquires the output parameters from the inversion output module and compares the output parameters with the rated parameters by the third data processing module. When the output power Pout is larger than or equal to M1 times of the rated power Prate, the first timer of the energy storage inverter power supply starts timing, and the second timer is cleared; when the continuous duration T1 of the first timer is greater than or equal to a first preset continuous duration T, a timing flag position P _ flag of the energy storage inverter power supply is set to be '1'; when the output power Pout is less than or equal to the rated power Prate, clearing the first timer and starting timing by the second timer; and when the continuous time length T2 of the second timer is greater than or equal to the first preset continuous time length T, setting a timing flag position P _ flag of the energy storage inverter power supply to be 0. Wherein T is a constant parameter greater than zero. Therefore, the rated power Prate of the output power Pout which is more than or equal to M1 times in the first preset continuous time T is the rated power Prate of the output power Pout which is more than or equal to M1 times, the timing flag bit P _ flag is set to be '1', and when the condition is met, the control and management module sends out an enabling signal to enable the energy storage inverter power supply to enter the power regulation mode.
For impact type loads such as ice machines, air conditioners, refrigerators and the like, 2-3 times of impact current can be generated instantly when the loads are started, and if the inverter power supply is started and then enters a power regulation mode, normal use of the loads can be influenced. In contrast, the energy storage inverter power supply starts, times are counted and the power regulation mode is delayed through designing the 'first preset continuous time T', instant impact during starting of an impact type load can be well transited, the impact type load or a high-power load exceeding the rated power can be started normally, and the loading capacity of the energy storage power supply is greatly improved.
As shown in fig. 1 to 5, after the energy storage inverter power supply enters the power adjustment mode, the power adaptive adjustment is mainly realized by the following method:
and (1) carrying out PI (proportion integration) regulation operation on the output parameters and the rated parameters, multiplying the output parameters by the coefficients, and carrying out amplitude limiting treatment to obtain a first alternative value of the inverter output PWM duty ratio.
As shown in fig. 1 to 5, specifically, the energy storage inverter power supply includes an inverter output module and a power slow-loop regulation subsystem, and the power slow-loop regulation subsystem mainly includes an inverter output module, a first data acquisition module, and three sets of PI regulation modules, product operation modules, and amplitude limiting modules, which are sequentially electrically connected. And acquiring output parameters including output voltage, output current and output power Pout (namely the signal P _ Fbc) from the inversion output module by the first data acquisition module. And the three groups of PI regulating modules, the product operation module and the amplitude limiting module are respectively a first group, a second group and a third group which are electrically connected in sequence. (a) Firstly, inputting output power Pout (namely a signal P _ Fbc) and rated power Prate (namely a signal P _ Ref) into a first group, carrying out PI regulation operation by a PI regulation module PI (P), multiplying the obtained value by a coefficient K1 by a product operation module, and carrying out amplitude limiting treatment by an amplitude limiting module F1 to obtain an output voltage given value (namely a signal U _ Ref); (b) inputting an output voltage given value (namely a signal U _ Ref) and an output voltage Uinv (namely a signal U _ Fbc) into a second group, carrying out PI regulation operation by a PI regulation module PI (U), multiplying the obtained value by a coefficient K2 by a product operation module, and carrying out amplitude limiting treatment by an amplitude limiting module F2 to obtain a current given value (namely a signal I _ Ref); (c) inputting a given current value (i.e. a signal I _ Ref) and an output current Iinv (i.e. a signal I _ Fbc) into a third group, carrying out PI regulation operation by a PI regulation module PI (I), multiplying the obtained value by a coefficient K3 by a product operation module, and carrying out amplitude limiting treatment by an amplitude limiting module F3 to obtain the first alternative value. Wherein, K1, K2 and K3 are constant parameters.
Step (2), if the output power Pout is larger than or equal to the rated power Prate which is M1 times within the first preset continuous time T, wherein M1 is a constant parameter, and M1 is larger than 0, obtaining a second alternative value of the inverter output PWM duty ratio by the following method: and taking the value obtained after the inversion output PWM duty ratio of the current energy storage inversion power supply is reduced according to the preset percentage as a second alternative value of the inversion output PWM duty ratio, wherein the larger the difference value between the output power Pout and the rated power Prate is, the larger the percentage of reduction of the inversion output PWM duty ratio is. The method specifically comprises the following substeps:
when the output power Pout is larger than or equal to M1 times of rated power Prate within a first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a first preset percentage A1 as the second alternative value of the inversion output PWM duty ratio;
when the output power Pout is larger than or equal to M2 times of rated power Prate within a first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a second preset percentage A2 as the second alternative value of the inversion output PWM duty ratio;
and (2.3) when the output power Pout is greater than or equal to M3 times of rated power Prate within the first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a third preset percentage A3 as the second alternative value of the inversion output PWM duty ratio.
And (3) in the power regulation mode, when the output power Pout is less than or equal to the rated power Prate, obtaining a third alternative value of the inverter output PWM duty ratio by the following method.
In the substep (3.1), if the (rated voltage Urate-second voltage deviation value U2) is less than or equal to the output voltage Uinv (rated voltage Urate + first voltage deviation value U1), taking the inversion output PWM duty ratio of the current energy storage inverter power supply as the third candidate value;
if the output voltage Uinv is greater than or equal to (the rated voltage Urate + the first voltage deviation value U1), taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a fourth preset percentage A4 as a third alternative value;
and (3.3) if the output voltage Uinv is less than or equal to (rated voltage Urate-second voltage deviation value U2), taking a value obtained by increasing the inversion output PWM duty ratio of the current energy storage inverter power supply according to a fifth preset percentage A5 as the third alternative value.
Wherein, A1, A2, A3, A4 and A5 are constant parameters which are larger than zero, 0< M1< M2< M3, 0% < A4, A5< A1< A2< A3< 100%.
As shown in fig. 1 to 5, specifically, the energy storage inverter power supply includes an inverter output module and a power fast loop adjusting subsystem, and the power fast loop adjusting subsystem mainly includes a second data processing module and a second data acquisition module, and is configured to perform step (2) and step (3).
Step (4) comparing the first alternative value with the second alternative value, and taking the smaller value of the first alternative value and the second alternative value as the actual inversion output PWM duty ratio for inversion output; or comparing the first alternative value with the third alternative value, and taking the smaller value of the first alternative value and the third alternative value as the actual inversion output PWM duty ratio for inversion output. Specifically, the energy storage inverter power supply comprises a PWM signal control module which performs comparison and outputs a smaller value.
As shown in fig. 1 to 5, in the present invention, power identification (i.e., a power identification subfunction) is mainly performed in step S2, and the energy storage inverter power supply is delayed to enter a power adjustment mode after being started, so as to better transition the transient impact during the start of the impact load, and enable the impact load or the high-power load exceeding the rated power to be started normally. Mainly forming slow loop regulation (namely a power slow loop regulation subfunction) in a power regulation mode in the step (1), mainly forming fast loop regulation (namely a power fast loop regulation subfunction) in the power regulation mode in the steps (2) and (3), and setting different regulation amplitudes according to the difference between output power Pout and rated power Prate to improve regulation efficiency; and then, a smaller value is screened out from two results of power slow loop regulation and power fast loop regulation by comparison, so that the reliability is ensured.
Wherein, T1, M1, M2, M3, A1, A2, A3, A4, A5, U1 and U2 are constant parameters which are all larger than zero, and 0< M1< M2< M3, 0< A4, A5< A1< A2< A3< 100.
As shown in fig. 1 to fig. 5, in a specific embodiment of a power adaptive adjustment method for an energy storage inverter power supply, T is 2(s), M1 is 1.1, and a1 is 10%; m2 ═ 2, a2 ═ 20%; m3 ═ 4, A3 ═ 50%; u1 ═ U2 ═ 1(v), a4 ═ a5 ═ 2%.
Furthermore, in an implementation, a computer-readable storage medium is provided, on which a computer program is stored, the computer program being configured to implement a power adaptive adjustment method for an energy storage inverter power supply as any of the above.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (8)
1. A power self-adaptive adjustment method of an energy storage inverter power supply is characterized in that after the inversion output of the energy storage inverter power supply is started, the output parameters of the energy storage inverter power supply are sampled; if the output power is larger than or equal to M1 times of rated power within the first preset continuous time T, performing a power regulation mode, wherein T, M1 are constant parameters which are larger than zero, and the power regulation mode comprises the following steps:
carrying out PI (proportional integral) regulation operation on the output parameter and the rated parameter, multiplying the output parameter by a coefficient, and carrying out amplitude limiting treatment to obtain a first alternative value of the inverter output PWM duty ratio;
obtaining a second alternative value of the inverter output PWM duty cycle by: taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a preset percentage as a second alternative value of the inversion output PWM duty ratio;
and then, comparing the first alternative value with the second alternative value, and taking the smaller value of the first alternative value and the second alternative value as the actual inversion output PWM duty ratio for inversion output.
2. The adaptive power regulation method for the energy storage inverter power supply as claimed in claim 1, wherein in the power regulation mode, when the output power is less than or equal to the rated power, the third alternative value of the inverter output PWM duty ratio is obtained by the following method:
if the output voltage is less than or equal to (the rated voltage-the second voltage deviation value) and less than or equal to (the rated voltage + the first voltage deviation value), taking the inversion output PWM duty ratio of the current energy storage inverter power supply as the third alternative value;
if the output voltage is greater than or equal to (the rated voltage + the first voltage deviation value), taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a fourth preset percentage A4 as the third alternative value;
if the output voltage is less than or equal to (the rated voltage-second voltage deviation value), taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is increased according to a fifth preset percentage A5 as the third alternative value; wherein, A4 and A5 are constant parameters which are larger than zero, and 0% < A4< 100%, and 0% < A5< 100%;
and then, comparing the first alternative value with the third alternative value, and taking the smaller value of the first alternative value and the third alternative value as the actual inversion output PWM duty ratio for inversion output.
3. The adaptive power regulation method for the energy storage inverter power supply according to claim 1 or 2, wherein in the calculating of the second selected value, the larger the difference between the output power and the rated power is, the larger the percentage of reduction of the inverter output PWM duty ratio is.
4. The adaptive power regulation method of an energy storage inverter power supply according to claim 3, wherein the second alternative value is obtained by:
when the output power is larger than or equal to M1 times of rated power within a first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a first preset percentage A1 as the second alternative value of the inversion output PWM duty ratio;
when the output power is larger than or equal to M2 times of rated power within the first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a second preset percentage A2 as the second alternative value of the inversion output PWM duty ratio;
when the output power is larger than or equal to M3 times of rated power within the first preset continuous time T, taking a value obtained after the inversion output PWM duty ratio of the current energy storage inverter power supply is reduced according to a third preset percentage A3 as the second alternative value of the inversion output PWM duty ratio;
wherein, M1, M2, M3, A1, A2, A3, A4 and A5 are constant parameters which are all larger than zero, and 0< M1< M2< M3, 0< A4, A5< A1< A2< A3< 100.
5. The adaptive power regulation method for the energy storage inverter power supply as claimed in claim 4, wherein: t2(s), M1 1.1, a1 10%; m2 ═ 2, a2 ═ 20%; m3 ═ 4, A3 ═ 50%; u1 ═ U2 ═ 1(v), a4 ═ a5 ═ 2%.
6. The self-adaptive power regulation method of the energy storage inverter power supply as claimed in claim 1, wherein when the output power is greater than or equal to M1 times of rated power, the energy storage inverter power supply starts timing at the first time, and the second time is cleared; when the continuous duration of the timer I is larger than or equal to the first preset continuous duration T, the timing flag position of the energy storage inverter power supply is set to be 1, and a power regulation mode is entered; when the output power is less than or equal to the rated power, the first timer is cleared, and the second timer starts to time; and when the continuous duration of the second timer is greater than or equal to the first preset continuous duration T, the timing flag position of the energy storage inverter power supply is set to be 0, and the power regulation mode is exited.
7. The adaptive power regulation method for the energy storage inverter power supply according to claim 1, characterized in that: the output parameters comprise output voltage, output current and output power; performing PI regulation operation on the output power and the rated power, multiplying the obtained value by a coefficient K1, and performing amplitude limiting treatment to obtain an output voltage given value; and performing PI regulation operation on the given value of the output voltage and the output voltage of the energy storage inverter power supply, multiplying the obtained value by a coefficient K2, performing amplitude limiting treatment to obtain a given value of current, performing PI regulation operation on the given value of the current and the output current of the energy storage inverter power supply, multiplying the obtained value by a coefficient K3, and performing amplitude limiting treatment to obtain the first alternative value.
8. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program is used for implementing the power adaptive adjustment method of the energy storage inverter power supply as claimed in any one of claims 1 to 7.
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