Multi-source power supply vehicle power supply system and method integrating unit and UPS (Uninterrupted Power Supply)

Abstract

The invention relates to the technical field of emergency power supply, in particular to a multi-source power supply vehicle power supply system and method of an integrated unit and a UPS, and the system comprises a frequency stability regulation and control module, a voltage distribution module, a battery time sequence module, an energy flow regulation module and an overload pre-judgment module. According to the invention, by establishing a real-time correlation adjustment mechanism of frequency and excitation current, frequency stability and voltage synchronous correction of a power generation end are realized, a voltage change rate determination strategy is adopted to dynamically adjust the power ratio of a unit to a UPS, and a self-adaptive double-source energy distribution logic is formed. Balanced operation in an energy storage unit is realized by utilizing voltage difference layered rearrangement and time sequence allocation of a battery core, closed-loop coordination of an energy flow direction is realized by calculating and controlling a conduction angle ratio of a main channel and an auxiliary channel in combination with a current phase difference, and current distribution is synchronously corrected by introducing a temperature rise variation trend and branch power relation judgment mechanism. A power generation, energy storage and transmission integrated energy cooperative control system is constructed, and the power supply continuity and the system stability are improved.

Description

Technical Field

[0001] This invention relates to the field of emergency power supply technology, and in particular to a multi-source power supply system and method for integrated units and UPS. Background Technology

[0002] Emergency power supply technology encompasses technologies that ensure critical equipment and facilities can continuously receive power support in the event of a main power outage or grid failure. This includes power generation and supply, energy storage, power conversion, automatic switching, and power supply safety protection. Its overall technical system covers mobile power supply equipment, battery energy storage systems, generator drive structures, inverters and voltage stabilizers, and power line safety management structures. This field, through research on power redundancy configuration, energy switching logic, and safety monitoring methods, has developed a power supply system capable of handling various sudden power outage scenarios. This system ensures the continuity and stability of power supply in critical locations such as communications, healthcare, transportation, and emergency rescue. Among these systems, the traditional integrated generator set and UPS multi-source vehicle power supply system refers to a device that uses a vehicle as a carrier to combine a generator set with an uninterruptible power supply (UPS) system for temporary or emergency power supply. Addressing the intermittent issues in the connection between independent generator set power supply and separate UPS energy storage during continuous power supply, the generator set outputs electrical energy, which is then rectified and regulated to supply the load. The UPS utilizes its internal battery bank to store energy to maintain short-term power supply during main power switching. The generator set uses a diesel or gasoline engine to drive an AC generator for energy conversion. The UPS converts the input AC power to DC power through a rectifier circuit for charging and then outputs stable AC power through an inverter circuit. It features multiple input and output wiring methods to connect to external power sources or electrical equipment and is equipped with battery temperature detection, charge / discharge control, and power switching actuators to complete the energy connection and power supply management between generator set power generation and UPS energy storage.

[0003] Traditional integrated power supply technology for multi-source power vehicles in UPS systems relies on fixed power distribution and static voltage control during the connection between power generation and energy storage. It cannot make real-time adjustments based on dynamic changes in unit speed, load fluctuations, and energy storage status. This results in the frequency and voltage stability being greatly affected by sudden changes in external load during power supply. The unit's response lag causes transient voltage deviations. When UPS energy storage units are running in parallel, there is a problem of asynchronous energy release. The accumulation of voltage differences between series cells can easily lead to overcharging or undervoltage. Uneven energy flow distribution in the dual-channel feedback loop causes current phase misalignment and energy loss. Cable temperature rise monitoring relies on fixed threshold triggers, making it difficult to identify potential overload risks in advance. Summary of the Invention

[0004] To address the technical problems existing in the prior art, embodiments of the present invention provide a multi-source power supply system and method integrating a generator set and a UPS. The technical solution is as follows: On the one hand, it provides a multi-source power supply system for vehicles that integrates generator sets and UPS, the system including: The frequency stability control module calls the unit's operating status monitoring data, calculates the frequency stability coefficient and analyzes the trend of change based on the diesel unit's speed and load power, adjusts the excitation coil current in conjunction with the output voltage offset based on the corresponding relationship between the frequency stability coefficient change rate and the direction of the electric excitation current adjustment, synchronously corrects the excitation current and establishes control feedback, and generates the frequency stability electric excitation adjustment configuration. The voltage distribution module uses the frequency-stabilized electric excitation regulation configuration to analyze the voltage difference between the UPS and the unit output terminals, determine the direction of voltage change and adjust the power supply ratio synchronously, optimize the UPS power rise and fall range and compensate for the unit response delay, and generate dual-source power dynamic distribution information. The battery timing module compares the difference between the terminal voltage of each UPS cell and the average voltage based on the dual-source power dynamic allocation information, sorts the cells in layers, rearranges the action sequence in combination with the charging and discharging stage identifiers, adjusts the charging and discharging cycle, and generates the series battery pack charging and discharging configuration. Based on the charging and discharging configuration of the series battery pack, the power flow regulation module compares the phase signals of the UPS and the unit channel current, calculates the phase angle difference, adjusts the conduction angle ratio of the main and auxiliary channels, synchronizes the current waveform, and generates a dual-path phase difference synchronization result. Based on the dual-path phase difference synchronization results, the overload prediction module analyzes the cable temperature sampling sequence, calculates the temperature rise change, compares the temperature rise change trend with the corresponding relationship of power changes in multiple branches, adjusts the inverter current distribution ratio according to the direction and duration of the temperature rise, and generates a line temperature control coordination record.

[0005] As a further embodiment of the present invention, the frequency-stabilized electric excitation regulation configuration includes excitation current correction parameters, frequency stability feedback coefficient, and voltage offset compensation factor; the dual-source power dynamic allocation information includes UPS power regulation ratio, unit load allocation ratio, and output voltage balance parameters; the series battery pack charging and discharging configuration includes cell grouping order, charging and discharging time parameters, and energy flow direction identification; the dual-path phase difference synchronization result specifically includes conduction angle matching parameters, energy flow phase synchronization identification, and current waveform matching coefficient; and the line temperature control coordination record includes temperature rise trend parameters, heat load allocation ratio, and current shunting coordination amount.

[0006] As a further aspect of the present invention, the frequency stability control module includes: The status analysis submodule acquires the unit's operating status monitoring data, analyzes the diesel engine speed change data and load power change data, and correlates the speed data and load power data according to the period to generate periodic status comparison parameters. Based on the periodic state comparison parameters, the trend determination submodule calculates the frequency stability coefficient for each cycle according to the speed and load data, analyzes the rate of change of the frequency stability coefficient, and makes corresponding determinations according to the direction of the electric excitation current adjustment to generate frequency stability trend matching parameters. The synchronous correction submodule adjusts the excitation coil current adjustment range according to the frequency stability trend matching parameters and the offset between the output voltage and the rated voltage, performs synchronous correction on the excitation current, establishes control feedback quantity based on the degree of matching between the corrected current and the frequency stability trend, and generates a frequency stability electric excitation adjustment configuration.

[0007] As a further aspect of the present invention, the voltage distribution module includes: The voltage monitoring submodule uses the frequency-stabilized electric excitation regulation configuration to obtain real-time voltage data and set rated voltage data of the parallel output terminals of the UPS and the unit, analyzes the numerical difference between the two, determines the direction of change based on the voltage changes in multiple sampling periods, and establishes voltage change trend parameters. The trend adjustment submodule calls the voltage change trend parameters, analyzes the rate and direction of voltage change, and, in conjunction with the real-time load status, adjusts the power supply ratio of the UPS and the generator set, dynamically corrects the UPS output power, and establishes dual-source power adjustment parameters. The delay compensation submodule optimizes the UPS power increase / decrease range based on the dual-source power adjustment parameters, the percentage changes over multiple time periods, and the actual response results. It also performs compensation and correction based on the unit's response delay characteristics to generate dynamic dual-source power allocation information.

[0008] As a further aspect of the present invention, the battery timing module includes: The cell stratification submodule compares the difference between the terminal voltage of each series cell in the UPS and the average voltage of the battery pack based on the dual-source power dynamic allocation information, and sorts the cells according to the difference between the terminal voltage of the cells and the average voltage to establish cell stratification parameters. The sequential arrangement submodule calls the cell layering parameters, combines them with the charging and discharging stage identification information, determines the energy flow direction, and rearranges the action sequence of multiple layered cells to obtain the grouped action sequence; The timing configuration submodule adjusts the charging and discharging time sequence and duration of multiple groups according to the group action sequence, and establishes a timing allocation table based on the current energy flow stage information to generate the charging and discharging configuration of the series battery pack.

[0009] As a further aspect of the present invention, the process of stratifying and sorting according to the difference between the cell terminal voltage and the average voltage specifically involves the following steps: Within the same sampling period, the terminal voltage of each series-connected cell is collected. The average voltage of the battery pack is determined based on the arithmetic mean of the terminal voltages of each series-connected cell. The absolute value of the difference between the terminal voltage of each series-connected cell and the average voltage of the battery pack is used as the difference amplitude. The cells are arranged in descending order of difference amplitude to form a rank queue. The upper limit threshold of the stratification is set by the difference magnitude corresponding to the upper quantile in the rank queue, and the lower limit threshold of the stratification is set by the difference magnitude corresponding to the lower quantile in the rank queue. If the difference magnitude is greater than the upper limit threshold of the layer, it is determined to be in the priority layer; if the difference magnitude is between the upper limit threshold and the lower limit threshold of the layer, it is determined to be in the intermediate layer; and if the difference magnitude is less than the lower limit threshold of the layer, it is determined to be in the subsequent layer.

[0010] As a further aspect of the present invention, the energy flow regulation module includes: The phase detection submodule acquires the current phase signals of the UPS channel and the unit channel based on the charging and discharging configuration of the series battery pack, analyzes the sinusoidal period data of the current in the main channel and the auxiliary channel, calculates the phase angle difference between the two channels, and establishes the energy flow phase difference parameter. The angle adjustment submodule calls the energy flow phase difference parameter to determine the dominant energy direction, adjusts the scaling ratio according to the angular relationship between the main channel conduction angle and the secondary channel conduction angle, and performs reverse matching of the conduction angles of the main and secondary channels to obtain conduction angle matching data. Based on the conduction angle ratio data, the waveform synchronization submodule continuously corrects the current waveforms of the main channel and the secondary channel. By comparing the current matching characteristics in real time, it records the synchronization status during the feedback process, establishes a dual-channel coordination table, and generates dual-path phase difference synchronization results.

[0011] As a further aspect of the present invention, the overload prediction module includes: Based on the dual-path phase difference synchronization results, the temperature rise detection submodule analyzes the temperature sampling sequence of the cable monitoring node, calculates the temperature rise change between adjacent samples, determines the growth trend of the temperature rise change, and establishes temperature rise trend parameters. The trend correlation submodule calls the temperature rise trend parameter, compares the correspondence between the power change of each branch and the temperature rise trend, analyzes the impact of power distribution on temperature rise, and obtains the temperature rise and power correlation factor. The current shunting coordination submodule adjusts the distribution ratio of the inverter output current based on the temperature rise and power correlation factor, coordinates the power shunting status of the main branch and the auxiliary branch, establishes thermal load control parameters, and generates line temperature control coordination records.

[0012] On the other hand, the multi-source power supply method for integrated units and UPS, which is based on the aforementioned multi-source power supply system for integrated units and UPS, includes the following steps: S1: Call the unit operation status monitoring data, calculate the frequency stability coefficient and analyze the trend of change based on the diesel unit speed and load power, adjust the excitation coil current in combination with the output voltage offset according to the corresponding relationship between the frequency stability coefficient change rate and the direction of electric excitation current adjustment, synchronously correct the excitation current and establish control feedback, and generate frequency stability electric excitation adjustment configuration. S2: Using the frequency-stabilized electric excitation regulation configuration, analyze the voltage difference between the UPS and the unit output terminals, determine the direction of voltage change and adjust the power supply ratio synchronously, optimize the UPS power rise and fall range and compensate for the unit response delay, and generate dual-source power dynamic allocation information. S3: Based on the dual-source power dynamic allocation information, compare the difference between the terminal voltage of each UPS cell and the average voltage, sort the cells in layers, rearrange the action sequence in combination with the charging and discharging stage identifiers, adjust the charging and discharging cycle, and generate the series battery pack charging and discharging configuration. S4: Based on the charging and discharging configuration of the series battery pack, compare the phase signals of the UPS and the unit channel current, calculate the phase angle difference and adjust the conduction angle ratio of the main and auxiliary channels, synchronize the current waveform, and generate the dual-path phase difference synchronization result. S5: Based on the dual-path phase difference synchronization results, analyze the cable temperature sampling sequence, calculate the temperature rise change, compare the temperature rise change trend with the corresponding relationship of power changes in multiple branches, adjust the inverter current distribution ratio according to the temperature rise direction and duration, and generate line temperature control coordination records.

[0013] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: By establishing a real-time correlation adjustment mechanism between frequency and excitation current, frequency stability and voltage synchronous correction at the generation end are achieved. A voltage change rate judgment strategy is adopted to dynamically adjust the power ratio of the generator and UPS, forming an adaptive dual-source energy distribution logic. The layered rearrangement and timing allocation of cell voltage differences are used to achieve balanced operation within the energy storage unit. The current phase difference calculation is combined with the control of the conduction angle ratio of the main and auxiliary channels to achieve closed-loop coordination of energy flow direction. Furthermore, a temperature rise change trend and branch power relationship judgment mechanism is introduced to synchronously correct the current distribution, thus constructing an integrated energy collaborative control system for power generation, energy storage and transmission, improving power supply continuity and system stability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the multi-source power supply system for integrated units and UPS provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the system framework of the present invention; Figure 3 This is a flowchart of the frequency stability control module in this invention; Figure 4 This is a flowchart of the voltage distribution module in this invention; Figure 5 This is a flowchart of the battery timing module in this invention; Figure 6 This is a flowchart of the energy flow regulation module in this invention; Figure 7 This is a flowchart of the overload prediction module in this invention; Figure 8 This is a flowchart of the multi-source power supply method for integrated units and UPS provided in the embodiments of the present invention. Detailed Implementation

[0016] The technical solution of the present invention will now be described with reference to the accompanying drawings.

[0017] In embodiments of the present invention, words such as "exemplarily," "for example," etc., are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" in the present invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present the concept in a concrete manner. Furthermore, in embodiments of the present invention, the meaning expressed by "and / or" can be both, or either one.

[0018] In the embodiments of this invention, the terms "image" and "picture" may sometimes be used interchangeably. It should be noted that, without emphasizing the distinction between them, they convey the same meaning. Similarly, the terms "of," "corresponding (relevant)," and "corresponding" may sometimes be used interchangeably. It should be noted that, without emphasizing the distinction between them, they convey the same meaning.

[0019] In this embodiment of the invention, sometimes a subscript such as W1 may be written in a non-subscript form such as W1. When the difference is not emphasized, the meaning they express is the same.

[0020] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0021] This invention provides a multi-source power supply system integrating generator sets and UPS, such as... Figure 1-2The diagram shown illustrates a multi-source power supply system for integrated units and UPS systems. This system includes: The frequency stability control module calls the unit's operating status monitoring data, calculates the frequency stability coefficient and analyzes the trend of change based on the diesel unit's speed and load power, adjusts the excitation coil current in conjunction with the output voltage offset based on the corresponding relationship between the frequency stability coefficient change rate and the direction of the electric excitation current adjustment, synchronously corrects the excitation current and establishes control feedback, and generates the frequency stability electric excitation adjustment configuration. The voltage distribution module uses frequency-stabilized electric excitation regulation configuration to analyze the voltage difference between the UPS and the unit output terminals, determine the direction of voltage change and adjust the power supply ratio synchronously, optimize the UPS power rise and fall range and compensate for the unit response delay, and generate dual-source power dynamic distribution information. The battery timing module compares the difference between the terminal voltage of each cell in the UPS and the average voltage based on the dual-source power dynamic allocation information, sorts the cells in layers, rearranges the action sequence in combination with the charging and discharging stage identifiers, adjusts the charging and discharging cycle, and generates the charging and discharging configuration of the series battery pack. The power flow regulation module is based on the charging and discharging configuration of the series battery pack. It compares the phase signals of the UPS and the unit channel current, calculates the phase angle difference, adjusts the conduction angle ratio of the main and auxiliary channels, synchronizes the current waveform, and generates the dual-path phase difference synchronization result. The overload prediction module analyzes the cable temperature sampling sequence based on the dual-path phase difference synchronization results, calculates the temperature rise change, compares the temperature rise change trend with the power change of multiple branches, adjusts the inverter current distribution ratio according to the direction and duration of the temperature rise, and generates a line temperature control coordination record.

[0022] The frequency-stabilized electric excitation regulation configuration includes excitation current correction parameters, frequency stability feedback coefficient, and voltage deviation compensation factor. The dual-source power dynamic allocation information includes UPS power regulation ratio, unit load allocation ratio, and output voltage balance parameters. The series battery pack charging and discharging configuration includes cell grouping order, charging and discharging time parameters, and energy flow direction identification. The dual-path phase difference synchronization results specifically include conduction angle matching parameters, energy flow phase synchronization identification, and current waveform matching coefficient. The line temperature control coordination record includes temperature rise trend parameters, heat load allocation ratio, and current shunting coordination amount.

[0023] Specifically, such as Figure 2 , 3 As shown, the frequency stability control module includes: The status analysis submodule acquires the unit's operating status monitoring data, analyzes the diesel engine speed change data and load power change data, and correlates the speed data and load power data according to the period to generate periodic status comparison parameters. The system acquires operational status monitoring data from the diesel generator set controller, updated 100 times per second. This data includes timestamps, diesel engine speed, and output load power. In an emergency power supply scenario, when a mobile CT scanner starts scanning, the system detects a sudden increase in load power from 80 kW to 130 kW within one second. 100 data points are extracted from this one-second interval (one analysis cycle) to process the diesel generator set speed and load power change data. First, the speed data from these 100 data points are collected... With load power data set To correspond, among which and These are sampled values ​​at the same timestamp. For example, at the beginning of period T1. The measured rotational speed was 1500.0 rpm and the power was 80.1 kW; At that moment, the power reached 130.0kW, and the speed dropped to 1495.5RPM due to the load impact; at the end of the cycle... At that moment, the engine speed initially recovered to 1497.0 RPM, and the power stabilized at 129.8 kW. Subsequently, based on these two data sets, state comparison parameters for this cycle were generated. These parameters are a structured dataset, specifically including: the initial engine speed of the cycle. (Pick The value is 1500.0 RPM), and the rotational speed at the end of the cycle. (Pick The value is 1497.0 RPM), and the minimum speed of the cycle is... (Obtained by traversing set N, the value is 1495.5 RPM), periodic average rotational speed (Calculate the arithmetic mean of set N, which is 1497.8 RPM); Periodic starting power (Pick The value is 80.1kW), and the power at the end of the cycle is... (Pick The value is 129.8kW), with the highest power per cycle. (Obtained by traversing set P, the power is 130.0kW), periodic average power. (The arithmetic mean of set P is calculated to be 105.3 kW). Finally, the eight calculated values ​​are combined to generate periodic state comparison parameters: {period number: T1, 1500.0, 1497.0, 1495.5, 1497.8, 80.1, 129.8, 130.0, :105.3}.

[0024] The trend determination submodule calculates the frequency stability coefficient for each cycle based on the periodic state comparison parameters and the speed and load data. It analyzes the rate of change of the frequency stability coefficient and makes corresponding determinations based on the direction of the electric excitation current adjustment, thereby generating frequency stability trend matching parameters. Based on the periodic state comparison parameters generated in the previous period (T1) {period number:T1, 1500.0, 1497.0, 1495.5, 1497.8, 80.1, 129.8, 130.0, :105.3}, calculate the frequency stability coefficient for this period. The calculation process for the frequency stability coefficient is as follows: First, calculate the absolute amount of power change within the period. Then calculate the absolute change in rotational speed within the cycle. Assume the rated speed of the unit 1500 RPM, rated power The power rating is 150kW. The frequency stability coefficient is defined as the reciprocal of the change in relative speed caused by a unit change in relative power. Specifically, it is calculated as: Frequency stability coefficient = The system stores the frequency stability coefficient of the previous cycle (T0) as 125.60. Therefore, the rate of change of the frequency stability coefficient is... This negative value indicates that the unit's frequency stability is declining. The system recorded that the direction of the excitation current adjustment in the previous cycle was "decreasing" (quantized as -1). Current analysis results show that the "decreasing" adjustment action led to a deterioration in the frequency stability coefficient. Therefore, the system makes a corresponding judgment, matching the current adjustment direction with the frequency stability coefficient change trend, and the judgment result is "negative correlation". This judgment means that the subsequent adjustment direction should be opposite to that of the previous cycle. Based on this judgment, the frequency stability trend matching parameters are generated: {Cycle number: T1, Frequency stability coefficient: 110.43, Change rate: -15.17 / second, Previous cycle adjustment direction: -1, Matching result: Negative correlation}.

[0025] The synchronous correction submodule adjusts the adjustment range of the excitation coil current according to the frequency stability trend matching parameters and the offset between the output voltage and the rated voltage, performs synchronous correction on the excitation current, establishes control feedback based on the degree of matching between the corrected current and the frequency stability trend, and generates a frequency stability electric excitation adjustment configuration. Based on the frequency stability trend matching parameter {matching result: negative correlation}, the direction of the excitation current adjustment is determined to be "increase". Simultaneously, the system monitors the generator output voltage as 396 volts (V), with a deviation of -4V from the rated voltage of 400V. The calculation of the adjustment amplitude is divided into two parts: the base amplitude and the trend correction amplitude. The base amplitude is proportional to the voltage deviation, with a proportionality coefficient... If the value is 0.2 amperes per volt (A / V), then the basic adjustment range = The magnitude of the trend correction depends on the matching result of the frequency-stable trend. When the matching result is "negatively correlated," a correction multiplier is applied. Its value is 1.5, used to accelerate the correction of erroneous trends. Final adjustment range = Base adjustment range Modified multipliers = Assuming the current excitation coil current is 14.5A, the new current value after synchronization correction is... .Should and The coefficients were obtained through calibration experiments on a test platform: the power supply vehicle was connected to a programmable load, simulating 10 typical load steps (such as a sudden increase from 20% to 80%), and for each step, 50 different sets of tests were performed. , Combined parameters ( From 0.05 to 0.5, increments of 0.05; From 1.0 to 2.0 (in increments of 0.2), record the time and frequency overshoot for voltage recovery to within ±1% of the rated value for each parameter group. Select the parameter group that minimizes the weighted sum of the average recovery time and average overshoot as the configuration value. In the next cycle (T2), the system will operate with an excitation current of 15.7A and recalculate the frequency stability coefficient for cycle T2. If the frequency stability coefficient of T2 rises above 120.0, the correction is considered effective, and the matching degree of this correction is high. This "matching degree" is used as a control feedback quantity (e.g., quantified as the rate of change of the frequency stability coefficient) for subsequent adjustments to the correction multiplier. Fine-tuning was performed. The final frequency-stabilized electric excitation regulation configuration was generated: {target excitation current: 15.7A, feedback quantity: {-15.17 / sec}}.

[0026] Specifically, such as Figure 2 , 4 As shown, the voltage distribution module includes: The voltage monitoring submodule uses frequency-stabilized electric excitation regulation configuration to obtain real-time voltage data and set rated voltage data at the parallel output terminals of the UPS and the unit, analyzes the numerical difference between the two, determines the direction of change based on voltage changes over multiple sampling periods, and establishes voltage change trend parameters. Using a frequency-stabilized excitation regulation configuration, the system has adjusted the generator excitation current to 15.7A. However, due to the unit's inertia, there is a delay in the stabilization of its output voltage. Real-time voltage data at the parallel output terminals of the UPS and the generator unit are acquired using a high-frequency voltage sensor at the parallel connection point, with a sampling frequency of 10kHz. Within a 100-millisecond monitoring window, 1000 voltage sample points are collected. The set rated voltage is 400V. The system calculates the arithmetic mean of these 1000 sample points, obtaining a real-time average voltage of 397.2V. Therefore, the difference from the set rated voltage is [missing value]. The system continuously records the average voltage value over multiple 100-millisecond monitoring windows, forming a time series. For example, the average voltage over the past five windows is [396.5V, 396.8V, 397.0V, 397.1V, 397.2V]. By performing a first-order difference on this series, the voltage change is obtained as [+0.3V, +0.2V, +0.1V, +0.1V]. All difference values ​​are positive, indicating that the voltage is continuously rising, but the rate of rise is slowing down. Based on this, the current voltage change direction is determined to be "positive rise". Combining the absolute value of the voltage difference and the direction of change, the voltage change trend parameters are established as: {Current voltage: 397.2V, Voltage difference: -2.8V, Direction of change: positive rise, Rate of change sequence: [+0.3, +0.2, +0.1, +0.1]V / 100ms}.

[0027] The trend adjustment submodule calls the voltage change trend parameters, analyzes the rate and direction of voltage change, and, in conjunction with the real-time load status, adjusts the power supply ratio of the UPS and the generator set, dynamically corrects the UPS output power, and establishes dual-source power adjustment parameters. The voltage change trend parameters {current voltage: 397.2V, voltage difference: -2.8V, ...} are used to analyze the voltage. Although the voltage is recovering, a -2.8V difference still exists, and the recovery rate shows signs of slowing down. To quickly compensate for this voltage difference, the power supply ratio between the UPS and the generator set needs to be adjusted. The system obtains the real-time total load status of the parallel points as 130kW. Before adjustment, the default power supply ratio is 90% (117kW) for the generator set and 10% (13kW) for the UPS. Now, this ratio is dynamically corrected based on the voltage difference and the change trend. The correction amount is calculated based on a two-dimensional lookup table, which is established through offline simulation. Its inputs are the voltage difference and the voltage change rate, and the output is the increment of the UPS power ratio. For example, when the voltage difference is in the range of [-3V, -2V] and the change rate is slowing down, the increment obtained from the lookup table is +15%. Therefore, the new UPS power supply ratio = original ratio + increment = Correspondingly, the power supply ratio of the generator set is adjusted to 75%. At this time, the UPS output power is dynamically adjusted to... The unit's output power target was adjusted to This approach leverages the UPS's rapid power response capability to proactively compensate for voltage dips caused by unit delays, while simultaneously reducing the instantaneous load pressure on the unit. Based on this, the dual-source power regulation parameters are established: {UPS target power: 32.5kW, unit target power: 97.5kW, UPS power supply ratio: 25%}.

[0028] The delay compensation submodule optimizes the UPS power increase / decrease range based on the dual-source power adjustment parameters, the percentage changes over multiple time periods, and the actual response results. It also performs compensation and correction based on the unit's response delay characteristics to generate dynamic dual-source power allocation information. Based on the dual-source power regulation parameters {UPS target power: 32.5kW,…}, the UPS needs to increase its output power from 13kW to 32.5kW, an increment of 19.5kW. During this power increase, the system records the actual voltage response. For example, after issuing the command, it may take 50 milliseconds for the parallel point voltage to rise back to 399.5V, indicating a response delay. The system records paired data of "power percentage change commands" and "actual voltage response results" over multiple time periods. By analyzing this historical data, the system identifies the unit's response delay characteristic under current operating conditions as approximately 150 milliseconds. To compensate for this, the system introduces a time lead when calculating the UPS power increase / decrease range. When the load is predicted to increase in the next cycle, the system will instruct the UPS to increase power 150 milliseconds in advance. Simultaneously, the UPS power increase / decrease range is optimized; its rate of increase / decrease is not linear but an optimized curve, with a faster rate at the beginning of the operation to gain time, and a slower rate as it approaches the target power to prevent overshoot. For example, for this 19.5kW power increase, the system will not issue a step command directly, but will decompose it into a non-linear power ramp-up sequence completed within 100 milliseconds: an increase of 10kW in the first 20 milliseconds, an increase of 6kW in the next 30 milliseconds, and an increase of 3.5kW in the last 50 milliseconds. This power allocation strategy, which compensates for delay characteristics and optimizes the ramp-up / downward range, ultimately generates dual-source dynamic power allocation information: {UPS power allocation command sequence: [t0, 13kW; t+20ms, 23kW; t+50ms, 29kW; t+100ms, 32.5kW], unit power allocation command: [synchronous reduction], compensation lead time: 150ms}.

[0029] Specifically, such as Figure 2 , 5 As shown, the battery timing module includes: The cell stratification submodule compares the difference between the terminal voltage of each series cell in the UPS and the average voltage of the battery pack based on the dual-source power dynamic allocation information, and sorts the cells according to the difference between the terminal voltage of the cells and the average voltage to establish cell stratification parameters. Based on the dual-source power dynamic allocation information, the UPS is currently discharging, with an output power of 32.5kW. The system collects the terminal voltages of all 96 series-connected cells in the UPS battery pack. Within a certain sampling period, the collected voltage values ​​form an array. By calculating the arithmetic mean of this array, the average battery pack voltage is obtained as 3.682V. Subsequently, the absolute value of the difference between the terminal voltage of each series-connected cell and this average voltage is calculated as the difference magnitude. For example, the voltage of cell number 1 is 3.701V, and the difference magnitude is... Cell #2's voltage is 3.660V, with a difference of [missing value]. Cell #3's voltage is 3.683V, with a difference of [missing value]. The system arranges all 96 cells by their difference magnitude from largest to smallest, forming a positional queue. The system takes the difference magnitude corresponding to the upper quartile (position 24) of this queue, for example, 0.015V, as the upper threshold for layering; and takes the difference magnitude corresponding to the lower quartile (position 72), for example, 0.005V, as the lower threshold for layering. Then, layering is determined: cell 2, with a difference magnitude of 0.022V, is greater than the upper threshold of 0.015V and is determined to be in the priority layer; cell 1, with a difference magnitude of 0.019V, is also greater than the upper threshold and is also in the priority layer; cell 3, with a difference magnitude of 0.001V, is less than the lower threshold of 0.005V and is determined to be in the subsequent layer. All cells with difference magnitudes between 0.005V and 0.015V are determined to be in the middle layer. Finally, the cell layering parameters are established as follows: {Priority layer cell ID:[2,1,…], Middle layer cell ID:[…], Subsequent layer cell ID:[3,…], Upper threshold:0.015V, Lower threshold:0.005V}.

[0030] The sequential arrangement submodule calls the cell layering parameters, combines the charging and discharging stage identification information, determines the energy flow direction, and rearranges the action sequence of multiple layered cells to obtain the grouped action sequence; The system calls the cell tiering parameters {priority cell ID:[2,1,…],…} and retrieves the current UPS charging / discharging stage identifier, which is "discharging". The energy flow direction is from the battery to the inverter. Based on this direction, the operation sequence of multiple tiered cells needs to be rearranged. During the discharging stage, the goal is to allow cells with higher voltages to undertake more discharging tasks, so that their voltages approach the average value. Therefore, cells in the priority tier whose initial voltage is higher than the average voltage (e.g., cell 1 voltage 3.701V > 3.682V) should be discharged first. Conversely, cells whose initial voltage is lower than the average voltage (e.g., cell 2 voltage 3.660V < 3.682V) should be placed later in the discharging sequence, even if the difference is large. The system traverses all tiers and sorts each cell based on a comprehensive consideration of "energy flow direction" and "relative relative voltage to the average value". The specific arrangement rule is as follows: During the discharge phase, cells with voltages higher than the average value in the priority layer are placed first, followed by those in the middle layer, and then those in the subsequent layers; then cells in the subsequent layers with voltages lower than the average value are placed next, followed by those in the middle layer, and finally those in the priority layer with voltages lower than the average value. Based on this rule, the action sequence of all cells is rearranged to obtain the following grouped action sequence: {First Discharge Group: [Priority Layer and High Voltage Cells], Second Discharge Group: [Middle Layer and High Voltage Cells], ..., Sixth Discharge Group: [Priority Layer and Low Voltage Cells]}.

[0031] The timing configuration submodule adjusts the charging and discharging time sequence and duration of multiple groups according to the group action sequence, and establishes a timing allocation table based on the current energy flow stage information to generate the charging and discharging configuration of the series battery pack. Based on the group action sequence, the discharge time order and duration of different groups are adjusted. Within a macroscopic discharge control cycle (e.g., 2 seconds), the system does not discharge all cells simultaneously, but rather employs time-sharing control. First, the charging and discharging time sequence is determined according to the group action sequence, with the first discharge group acting first and the sixth discharge group acting last. Second, the duration of each group is adjusted. The allocation of the duration is proportional to the average difference in voltage between the cells in that group; the larger the difference, the longer the duration of the action, to accelerate the return of voltage. For example, if the average difference in voltage between the first discharge group is 0.020V and that between the second discharge group and 0.010V, then within a total cycle of 2 seconds, the duration allocated to the first discharge group could be 400 milliseconds, while that to the second group could be 200 milliseconds. By configuring different start times and durations for each group, the system establishes a refined timing allocation table. Combined with the current energy flow stage information as "discharge," this table clarifies which cells will bear more discharge current through the bypass balancing circuit in the next 2 seconds and during which time slice. Finally, the series battery pack charge / discharge configuration is generated as follows: {Timing Allocation Table: [{Group: First Discharge Group, Action: Discharge, Start Time: t0, Duration: 400ms}, {Group: Second Discharge Group, Action: Discharge, Start Time: t0+400ms, Duration: 200ms}, ...]}.

[0032] Specifically, such as Figure 2 , 6 As shown, the energy flow regulation module includes: The phase detection submodule is based on the charging and discharging configuration of the series battery pack. It acquires the current phase signal of the UPS channel and the unit channel, analyzes the sinusoidal period data of the current in the main channel and the auxiliary channel, calculates the phase angle difference between the two channels, and establishes the energy flow phase difference parameter. Based on the series battery pack charging and discharging configuration, the UPS system is operating stably according to a preset timing sequence. High-precision current transformers are used to acquire current signals from the UPS inverter output channel (secondary channel) and the diesel generator output channel (primary channel), with a sampling rate of 1MHz. Within a complete 50Hz AC cycle (20 milliseconds), 20,000 current samples are collected from each channel. The system performs a Fourier transform on these two sets of sinusoidal periodic data to extract the phase angle of the fundamental component. For example, the current phase angle of the generator channel is analyzed. The current phase angle of the UPS channel is -15.2 degrees. The value is -16.1 degrees. Calculate the phase angle difference between the two channels. This negative value indicates that the current phase of the secondary channel lags behind that of the primary channel. The system continuously calculates the phase angle difference over multiple cycles and performs low-pass filtering to eliminate glitches and noise. For example, the phase differences for the most recent five cycles are [-0.88, -0.91, -0.90, -0.92, -0.89] degrees, and the stable phase difference after filtering is -0.9 degrees. Based on this, the energy flow phase difference parameters are established as follows: {Primary channel phase angle: -15.2 degrees, Secondary channel phase angle: -16.1 degrees, Instantaneous phase difference: -0.9 degrees, Stable phase difference: -0.9 degrees}.

[0033] The angle adjustment submodule calls the energy flow phase difference parameter to determine the dominant energy direction, adjusts the scaling ratio according to the angular relationship between the main channel conduction angle and the secondary channel conduction angle, and performs reverse matching of the conduction angles of the main and secondary channels to obtain conduction angle matching data. Calling the energy flow phase difference parameter {stable phase difference: -0.9 degrees}, the first step is to determine the dominant energy direction. Since the current power ratio of the generator set (75%) is greater than that of the UPS (25%), the generator set channel is determined to be the dominant energy direction, i.e., the main channel. A phase difference of -0.9 degrees means that the conduction angles of the main and auxiliary channels need to be adjusted to achieve phase synchronization. The goal of the adjustment is to bring the phase difference close to zero. The conduction angle is the angle that controls the conduction time of a power electronic switch (such as an IGBT) within one cycle. The basic principle of adjustment is: to compensate for the lag of the auxiliary channel, the conduction angle of the auxiliary channel needs to be slightly increased, while the conduction angle of the main channel is proportionally decreased (in some parallel topologies, or by adjusting the phase of its control signal) to maintain a constant total output power. Assume that the current conduction angle of the main channel is 165 degrees and that of the auxiliary channel is 160 degrees. According to the preset relationship between the phase difference and the conduction angle adjustment (this relationship is obtained through calibration experiments before the equipment leaves the factory and stored as a lookup table), the conduction angle adjustment of the auxiliary channel corresponding to a phase difference of -0.9 degrees is +0.3 degrees. The scaling ratio of the conduction angle between the primary and secondary channels is not 1:1; it depends on the impedance of the two channels and the current power distribution. The scaling ratio is set such that 80% of the adjustment amount for the secondary channel needs to be reverse-matched by the primary channel. Therefore, the conduction angle adjustment amount for the primary channel is... The new conduction angle ratio is: main channel Secondary passage Based on this, the following conduction angle ratio data is obtained: {Main channel target conduction angle: 164.76 degrees, secondary channel target conduction angle: 160.3 degrees}.

[0034] Based on the conduction angle ratio data, the waveform synchronization submodule continuously corrects the current waveforms of the main channel and the secondary channel. By comparing the current matching characteristics in real time, it records the synchronization status during the feedback process, establishes a dual-channel coordination table, and generates dual-path phase difference synchronization results. Based on the conduction angle ratio data, the inverter control system immediately updates the conduction angles of the primary and secondary channels to 164.76 degrees and 160.3 degrees, respectively. In the first AC cycle after the update, the effect of continuous correction to the current waveforms of the primary and secondary channels is evaluated. By comparing the current waveforms of the two channels in real time, their normalized cross-correlation coefficient is calculated as a current matching characteristic. Before adjustment, the cross-correlation coefficient was 0.9985; in the first cycle after adjustment, this coefficient increased to 0.9992, indicating improved waveform synchronization. The system continues this closed-loop process of "detection-adjustment-comparison" until the phase difference is less than a preset dead zone threshold (e.g., ±0.1 degrees) or the cross-correlation coefficient is greater than 0.9999. Under certain special operating conditions, such as when the load is a large motor and it brakes suddenly, energy feedback occurs, and the current direction reverses. The system specifically records the synchronization state during this feedback process, for example, recording the specific conduction angle ratio required to achieve synchronization at this time. These records are stored to optimize the initial response when encountering similar operating conditions in the future. Through continuous correction and recording, the system establishes a dynamically updated dual-channel coordination table, which stores the optimal conduction angle coordination synchronization state under different load levels and power factors. Finally, the dual-path phase difference synchronization result is generated: {Current phase difference: -0.15 degrees, cross-correlation coefficient: 0.9998, synchronization status: synchronized, dual-channel coordination table: updated}.

[0035] Specifically, such as Figure 2 , 7 As shown, the overload prediction module includes: The temperature rise detection submodule analyzes the temperature sampling sequence of the cable monitoring node based on the dual-path phase difference synchronization result, calculates the temperature rise change between adjacent samples, judges the growth trend of the temperature rise change, and establishes temperature rise trend parameters. Based on the dual-path phase difference synchronization results, the system confirmed that the generator set and UPS were in a stable parallel operation state. The temperature sampling sequence of the monitoring node located at the branch of the main output cable of the power supply vehicle was continuously analyzed. This node integrates a PT100 temperature sensor, sampling the temperature every 5 seconds. The system acquired 12 temperature sampling points from the past minute, forming a temperature sequence T=[45.1,45.2,45.2,45.3,45.4,45.6,45.8,46.1,46.4,46.8,47.2,47.7]°C. First, the temperature rise change between adjacent samples was calculated, i.e., the first-order difference of the sequence T was performed to obtain the temperature rise rate sequence. =[0.1,0.0,0.1,0.1,0.2,0.2,0.3,0.3,0.4,0.4,0.5]°C / 5s. Then, determine the growth trend of the temperature rise, that is, the temperature rise rate sequence. Perform the first-order difference again (calculate the second derivative) to obtain the trend sequence. =[-0.1,0.1,0.0,0.1,0.0,0.1,0.0,0.1,0.0,0.1,0.0,0.1]. The predominance of positive values ​​in this trend sequence indicates that the rate of temperature rise is accelerating. Based on this, the system determines that a significant growth trend exists. The final temperature rise trend parameters are: {Current temperature: 47.7°C, Temperature rise rate: 0.5°C / 5s, Growth trend: Accelerating upward}.

[0036] The trend correlation submodule calls the temperature rise trend parameter, compares the correspondence between the power change of each branch and the temperature rise trend, analyzes the impact of power distribution on temperature rise, and obtains the temperature rise and power correlation factor. By calling the temperature rise trend parameter {growth trend: accelerating increase}, the system simultaneously monitors the power changes of three main branches leading to different load areas. Within the same time period, the power of branch 1 (supplying the CT equipment) increased from 120kW to 130kW, the power of branch 2 (supplying the lighting system) remained stable at 20kW, and the power of branch 3 (supplying the life support system) remained stable at 30kW. The system compares the power changes of each branch with the overall cable temperature rise trend. By calculating the Pearson correlation coefficient, it was found that the correlation coefficient between the power change sequence and the temperature rise rate sequence of branch 1 was 0.92, while the correlation coefficients between the power and temperature rise rate of branches 2 and 3 were both below 0.1. This indicates that the accelerated temperature rise of the cable is highly correlated with the power distribution of branch 1. To quantify this effect, the system defines a temperature rise and power correlation factor, calculated as: Correlation Factor = Temperature Rise Rate / Corresponding Branch Power Change. In this example, the correlation factor for branch 1 is (0.5°C / 5s) / (130kW-120kW) = 0.05°C / (5s·kW). The physical meaning of this factor is that for every 1kW increase in power in this branch, the cable temperature will rise by an additional 0.05°C every 5 seconds. This factor is dynamically changing, and the system continuously calculates and updates it. Therefore, the temperature rise and power correlation factor is: {Dominant temperature rise branch: 1, Correlation factor: 0.05°C / (5s·kW)}.

[0037] The current shunting coordination submodule adjusts the distribution ratio of the inverter output current based on the temperature rise and power correlation factor, coordinates the power shunting status of the main branch and the auxiliary branch, establishes thermal load control parameters, and generates line temperature control coordination records. Based on the temperature rise and power correlation factor {dominant temperature rise branch: 1, correlation factor: 0.05…}, branch 1 is identified as having a thermal overload risk. To mitigate this risk, the inverter output current distribution ratio needs to be adjusted to shunt the power. The current total load is… The generator set outputs 97.5kW, and the UPS outputs 32.5kW. The UPS output power is provided by the inverter and has flexible allocation capabilities. Previously, most of the UPS's 32.5kW power likely flowed to branch 1. Now, the system instructs the inverter to adjust the proportion of its output current to each branch. Specifically, the adjustment is to reduce the current output to branch 1 and transfer this current to branch 2 or 3, which is then converged to the load end through on-site physical wiring or intelligent power distribution units. For example, the system instructs the inverter to reduce the power flowing to branch 1 by 5kW and increase the power flowing to branch 2 by 5kW. In this way, the total power of branch 1 is reduced to 125kW, while the total power of branch 2 is increased to 25kW. This coordinated power distribution between the main and secondary branches can proactively reduce the thermal load on high-risk branches without affecting the overall load power supply. To ensure the effectiveness and safety of this regulation, the system established a set of heat load control parameters, which defined the maximum allowable correlation factor and maximum shunt power ratio for each line (e.g., not exceeding 20% ​​of the branch's rated capacity). Finally, the successful intervention was recorded, generating a line temperature control coordination record: {Risk Branch: 1, Action: 5kW shunt from 1 to 2, New correlation factor value for branch 1: 0.045, Control parameters: Meets requirements}.

[0038] Please see Figure 8 The multi-source power supply method for integrated units and UPS is implemented based on the aforementioned multi-source power supply system for integrated units and UPS, and includes the following steps: S1: Call the unit operation status monitoring data, calculate the frequency stability coefficient and analyze the trend of change based on the diesel unit speed and load power, adjust the excitation coil current in combination with the output voltage offset according to the corresponding relationship between the frequency stability coefficient change rate and the direction of electric excitation current adjustment, synchronously correct the excitation current and establish control feedback, and generate frequency stability electric excitation adjustment configuration. S2: Utilize frequency-stabilized electric excitation regulation configuration to analyze the voltage difference between the UPS and the unit output terminals, determine the direction of voltage change and synchronously adjust the power supply ratio, optimize the UPS power rise and fall range and compensate for the unit response delay, and generate dual-source power dynamic allocation information. S3: Based on the dual-source power dynamic allocation information, compare the difference between the terminal voltage of each UPS cell and the average voltage, sort the cells in layers, rearrange the action sequence in combination with the charging and discharging stage identifiers, adjust the charging and discharging cycle, and generate the series battery pack charging and discharging configuration. S4: Based on the series battery pack charging and discharging configuration, compare the UPS and unit channel current phase signals, calculate the phase angle difference and adjust the main and auxiliary channel conduction angle ratio, synchronize the current waveform, and generate dual-path phase difference synchronization results; S5: Based on the dual-path phase difference synchronization results, analyze the cable temperature sampling sequence, calculate the temperature rise change, compare the temperature rise change trend with the corresponding relationship of power changes in multiple branches, adjust the inverter current distribution ratio according to the temperature rise direction and duration, and generate line temperature control coordination records.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A multi-source power supply system integrating generator sets and UPS, characterized in that, The system includes: The frequency stability control module calls the unit's operating status monitoring data, calculates the frequency stability coefficient and analyzes the trend of change based on the diesel unit's speed and load power, adjusts the excitation coil current in conjunction with the output voltage offset based on the corresponding relationship between the frequency stability coefficient change rate and the direction of the electric excitation current adjustment, synchronously corrects the excitation current and establishes control feedback, and generates the frequency stability electric excitation adjustment configuration. The voltage distribution module uses the frequency-stabilized electric excitation regulation configuration to analyze the voltage difference between the UPS and the unit output terminals, determine the direction of voltage change and adjust the power supply ratio synchronously, optimize the UPS power rise and fall range and compensate for the unit response delay, and generate dual-source power dynamic distribution information. The battery timing module compares the difference between the terminal voltage of each UPS cell and the average voltage based on the dual-source power dynamic allocation information, sorts the cells in layers, rearranges the action sequence in combination with the charging and discharging stage identifiers, adjusts the charging and discharging cycle, and generates the series battery pack charging and discharging configuration. Based on the charging and discharging configuration of the series battery pack, the power flow regulation module compares the phase signals of the UPS and the unit channel current, calculates the phase angle difference, adjusts the conduction angle ratio of the main and auxiliary channels, synchronizes the current waveform, and generates a dual-path phase difference synchronization result.

2. The multi-source power supply system for the integrated unit and UPS as described in claim 1, characterized in that, The frequency-stabilized electric excitation regulation configuration includes excitation current correction parameters, frequency stability feedback coefficient, and voltage offset compensation factor. The dual-source power dynamic allocation information includes UPS power regulation ratio, unit load allocation ratio, and output voltage balance parameters. The series battery pack charging and discharging configuration includes cell grouping order, charging and discharging time parameters, and energy flow direction identification. The dual-path phase difference synchronization result specifically includes conduction angle matching parameters, energy flow phase synchronization identification, and current waveform matching coefficient.

3. The multi-source power supply system for the integrated unit and UPS as described in claim 1, characterized in that, The frequency stability control module includes: The status analysis submodule acquires the unit's operating status monitoring data, analyzes the diesel engine speed change data and load power change data, and correlates the speed data and load power data according to the period to generate periodic status comparison parameters. Based on the periodic state comparison parameters, the trend determination submodule calculates the frequency stability coefficient for each cycle according to the speed and load data, analyzes the rate of change of the frequency stability coefficient, and makes corresponding determinations according to the direction of the electric excitation current adjustment to generate frequency stability trend matching parameters. The synchronous correction submodule adjusts the excitation coil current adjustment range according to the frequency stability trend matching parameters and the offset between the output voltage and the rated voltage, performs synchronous correction on the excitation current, establishes control feedback quantity based on the degree of matching between the corrected current and the frequency stability trend, and generates a frequency stability electric excitation adjustment configuration.

4. The multi-source power supply system for the integrated unit and UPS as described in claim 3, characterized in that, The voltage distribution module includes: The voltage monitoring submodule uses the frequency-stabilized electric excitation regulation configuration to obtain real-time voltage data and set rated voltage data of the parallel output terminals of the UPS and the unit, analyzes the numerical difference between the two, determines the direction of change based on the voltage changes in multiple sampling periods, and establishes voltage change trend parameters. The trend adjustment submodule calls the voltage change trend parameters, analyzes the rate and direction of voltage change, and, in conjunction with the real-time load status, adjusts the power supply ratio of the UPS and the generator set, dynamically corrects the UPS output power, and establishes dual-source power adjustment parameters. The delay compensation submodule optimizes the UPS power increase / decrease range based on the dual-source power adjustment parameters, the percentage changes over multiple time periods, and the actual response results. It also performs compensation and correction based on the unit's response delay characteristics to generate dynamic dual-source power allocation information.

5. The multi-source power supply system for integrated units and UPS as described in claim 4, characterized in that, The battery timing module includes: The cell stratification submodule compares the difference between the terminal voltage of each series cell in the UPS and the average voltage of the battery pack based on the dual-source power dynamic allocation information, and sorts the cells according to the difference between the terminal voltage of the cells and the average voltage to establish cell stratification parameters. The sequential arrangement submodule calls the cell layering parameters, combines them with the charging and discharging stage identification information, determines the energy flow direction, and rearranges the action sequence of multiple layered cells to obtain the grouped action sequence; The timing configuration submodule adjusts the charging and discharging time sequence and duration of multiple groups according to the group action sequence, and establishes a timing allocation table based on the current energy flow stage information to generate the charging and discharging configuration of the series battery pack.

6. The multi-source power supply system for integrated units and UPS as described in claim 5, characterized in that, The process of stratifying and sorting according to the difference between the cell terminal voltage and the average voltage is as follows: Within the same sampling period, the terminal voltage of each series-connected cell is collected. The average voltage of the battery pack is determined based on the arithmetic mean of the terminal voltages of each series-connected cell. The absolute value of the difference between the terminal voltage of each series-connected cell and the average voltage of the battery pack is used as the difference amplitude. The cells are arranged in descending order of difference amplitude to form a rank queue. The upper limit threshold of the stratification is set by the difference magnitude corresponding to the upper quantile in the rank queue, and the lower limit threshold of the stratification is set by the difference magnitude corresponding to the lower quantile in the rank queue. If the difference magnitude is greater than the upper limit threshold of the layer, it is determined to be in the priority layer; if the difference magnitude is between the upper limit threshold and the lower limit threshold of the layer, it is determined to be in the intermediate layer; and if the difference magnitude is less than the lower limit threshold of the layer, it is determined to be in the subsequent layer.

7. The multi-source power supply system for integrated units and UPS as described in claim 5, characterized in that, The energy flow regulation module includes: The phase detection submodule acquires the current phase signals of the UPS channel and the unit channel based on the charging and discharging configuration of the series battery pack, analyzes the sinusoidal period data of the current in the main channel and the auxiliary channel, calculates the phase angle difference between the two channels, and establishes the energy flow phase difference parameter. The angle adjustment submodule calls the energy flow phase difference parameter to determine the dominant energy direction, adjusts the scaling ratio according to the angular relationship between the main channel conduction angle and the secondary channel conduction angle, and performs reverse matching of the conduction angles of the main and secondary channels to obtain conduction angle matching data. Based on the conduction angle ratio data, the waveform synchronization submodule continuously corrects the current waveforms of the main channel and the secondary channel. By comparing the current matching characteristics in real time, it records the synchronization status during the feedback process, establishes a dual-channel coordination table, and generates dual-path phase difference synchronization results.

8. The multi-source power supply system for the integrated unit and UPS as described in claim 1, characterized in that, The system also includes: Based on the dual-path phase difference synchronization results, the overload prediction module analyzes the cable temperature sampling sequence, calculates the temperature rise change, compares the temperature rise change trend with the corresponding relationship of power changes in multiple branches, adjusts the inverter current distribution ratio according to the direction and duration of the temperature rise, and generates a line temperature control coordination record. The line temperature control coordination record includes temperature rise trend parameters, heat load distribution ratio, and current shunting coordination amount.

9. The multi-source power supply system for integrated units and UPS as described in claim 8, characterized in that, The overload prediction module includes: Based on the dual-path phase difference synchronization results, the temperature rise detection submodule analyzes the temperature sampling sequence of the cable monitoring node, calculates the temperature rise change between adjacent samples, determines the growth trend of the temperature rise change, and establishes temperature rise trend parameters. The trend correlation submodule calls the temperature rise trend parameter, compares the correspondence between the power change of each branch and the temperature rise trend, analyzes the impact of power distribution on temperature rise, and obtains the temperature rise and power correlation factor. The current shunting coordination submodule adjusts the distribution ratio of the inverter output current based on the temperature rise and power correlation factor, coordinates the power shunting status of the main branch and the auxiliary branch, establishes thermal load control parameters, and generates line temperature control coordination records.

10. A multi-source power supply method integrating integrated units and UPS, characterized in that, The multi-source power supply system for integrated units and UPS as described in any one of claims 1-9 includes the following steps: S1: Call the unit operation status monitoring data, calculate the frequency stability coefficient and analyze the trend of change based on the diesel unit speed and load power, adjust the excitation coil current in combination with the output voltage offset according to the corresponding relationship between the frequency stability coefficient change rate and the direction of electric excitation current adjustment, synchronously correct the excitation current and establish control feedback, and generate frequency stability electric excitation adjustment configuration. S2: Using the frequency-stabilized electric excitation regulation configuration, analyze the voltage difference between the UPS and the unit output terminals, determine the direction of voltage change and adjust the power supply ratio synchronously, optimize the UPS power rise and fall range and compensate for the unit response delay, and generate dual-source power dynamic allocation information. S3: Based on the dual-source power dynamic allocation information, compare the difference between the terminal voltage of each UPS cell and the average voltage, sort the cells in layers, rearrange the action sequence in combination with the charging and discharging stage identifiers, adjust the charging and discharging cycle, and generate the series battery pack charging and discharging configuration. S4: Based on the charging and discharging configuration of the series battery pack, compare the phase signals of the UPS and the unit channel current, calculate the phase angle difference and adjust the conduction angle ratio of the main and auxiliary channels, synchronize the current waveform, and generate the dual-path phase difference synchronization result. S5: Based on the dual-path phase difference synchronization results, analyze the cable temperature sampling sequence, calculate the temperature rise change, compare the temperature rise change trend with the corresponding relationship of power changes in multiple branches, adjust the inverter current distribution ratio according to the temperature rise direction and duration, and generate line temperature control coordination records.

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