Electric energy management system and method

Abstract

The embodiment of the invention provides an electric energy management system and method, and the system comprises a power supply unit which is coupled with at least one power generation device, and is used for supplying power to a ship and electric equipment in at least one power utilization region on the ship; the at least one monitoring unit is used for monitoring environment information in the power utilization area; when the power supply unit is powered by the power generation device, the main control unit adjusts the power consumption of electric equipment in the power utilization area according to the environment information of the power utilization area under the constraint that the power supply requirement of ship operation is met and the carbon emission corresponding to the power generation amount meets the preset carbon emission requirement, and the power consumption of the electric equipment in the power utilization area is adjusted according to the environment information of the power utilization area. And enabling the environment in the power utilization area to reach a preset user comfort standard. The power consumption of the electric equipment can be dynamically adjusted by comprehensively considering factors such as environmental comfort, energy consumption level and carbon emission limitation on the premise of meeting the power supply requirement of ship operation.

Description

Technical Field

[0001] The present disclosure relates to the technical field of ship energy management, and in particular to an electric energy management system and method. Background Art

[0002] With the growing adoption of green shipping concepts and increasingly stringent global requirements for carbon emission control, intelligent, energy-efficient, and low-carbon ship energy management systems have become a key industry trend. Traditional ship power management systems primarily focus on the stability and continuity of power supply, lacking comprehensive consideration of multiple factors such as energy consumption optimization, environmental comfort regulation, and carbon emission control. These systems are unable to meet the energy conservation, emission reduction, comfort improvement, and intelligent control requirements of modern ships. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present disclosure is to provide an electric energy management system and method to solve the problems in the related art.

[0004] A first aspect of the present disclosure provides an electric energy management system, which is applied to ships and includes:

[0005] a power supply unit coupled to at least one power generation device, configured to supply power to the ship and electrical equipment within at least one power consumption area on the ship; wherein the power generation of the power generation device is positively correlated with the total power demand of the ship;

[0006] At least one monitoring unit, used to monitor environmental information within the power consumption area;

[0007] A main control unit is communicatively connected to the power supply unit and at least one of the monitoring units, and is used to obtain the power generation of the power generation device and the environmental information. When the power supply unit is powered by the power generation device, the main control unit adjusts the power consumption of the electrical equipment in the power consumption area according to the environmental information of the power consumption area, subject to the constraints that the power supply requirements for the operation of the ship are met and the carbon emissions corresponding to the power generation meet the preset carbon emission requirements, so that the environment in the power consumption area meets the preset user comfort standard.

[0008] In an embodiment of the first aspect, the monitoring unit includes at least one of the following sensors: a temperature sensor, a humidity sensor, a lighting sensor, an air quality sensor, a noise sensor; and / or the electrical equipment includes at least one of the following: air conditioning equipment, air purification equipment, lighting equipment, and audio-visual equipment.

[0009] In an embodiment of the first aspect, the preset user comfort standard includes a preset threshold range of at least one of the following environmental parameters: temperature range, humidity range, lighting range, air quality index range, and noise decibel range.

[0010] In an embodiment of the first aspect, the monitoring unit includes a user monitoring module, the monitoring range of the user monitoring module covers at least one power consumption area, and is used to monitor user information in the power consumption area; wherein the user information includes a occupied state or an unoccupied state;

[0011] The main control unit is also communicatively connected to the user monitoring module. Under the constraints of meeting the power supply requirements for the operation of the ship and the carbon emissions corresponding to the power generation meeting the preset carbon emission requirements, in response to the user information being in an occupied state, the power consumption of the electrical equipment is adjusted according to the environmental information in the power consumption area to meet the preset user comfort standards.

[0012] In an embodiment of the first aspect, the monitoring unit is further configured to monitor power consumption values ​​of electrical devices in at least one power consumption area;

[0013] The main control unit is further configured to adjust the power consumption of the power-consuming devices according to the power consumption values ​​of all the power-consuming devices in the power-consuming area according to a preset adjustment mechanism, so that the power consumption in the power-consuming area does not exceed the preset power consumption value.

[0014] In an embodiment of the first aspect, the user monitoring module includes at least one of the following: a camera, an infrared sensor, and an induction sensor.

[0015] In an embodiment of the first aspect, an alarm unit is further included, which is used to obtain the total power consumption value in at least one power consumption area, and generate an alarm message when the power supply unit is powered by shore power and the total power consumption value of the power-consuming equipment in the power consumption area exceeds a preset power consumption value.

[0016] In an embodiment of the first aspect, the power consumption area is functionally divided into a living cabin area, an operating cabin area, and a public cabin area; it also includes multiple monitoring units for separately monitoring the environmental information of each cabin area; wherein each cabin area is provided with a corresponding user comfort standard.

[0017] In an embodiment of the first aspect, the power supply unit includes:

[0018] At least one battery energy storage module for storing shore power or electrical energy generated by the power generation device;

[0019] The power regulation module is respectively coupled to the battery energy storage module, the power-consuming device and the main control unit, and is configured to adjust the output power of the battery energy storage module to the corresponding power-consuming device according to the adjustment information generated by the main control unit for adjusting the power consumption of the power-consuming device.

[0020] A second aspect of the present disclosure provides an electric energy management method, which is applied to any one of the above-mentioned electric energy management systems and includes:

[0021] In response to a switching operation of switching the power supply state to a power generation device, obtaining power generation of the power generation device and environmental information of at least one power consumption area; wherein the power generation device is used to supply power to power-consuming equipment and ship operations in the power consumption area;

[0022] Based on the constraints of meeting the power supply requirements for the operation of the ship and the carbon emissions corresponding to the power generation meeting the preset carbon emission requirements, the power consumption of the electrical equipment in the power consumption area is adjusted according to the environmental information of the power consumption area, so that the environment in the power consumption area meets the preset user comfort standards.

[0023] Beneficial effects of the present disclosure: This application not only considers the balance of power supply and demand and user comfort when regulating power consumption equipment, but also introduces a carbon emission control strategy. The main control unit obtains the power generation of the power generation device and the environmental information of each power consumption area in real time, and dynamically adjusts the power output of the power consumption equipment based on the environmental parameters, thereby avoiding energy waste and improving the overall power utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of an electric energy management system in one embodiment of the present disclosure is shown.

[0025] Figure 2 A schematic structural diagram of an electric energy management system in another embodiment of the present disclosure is shown.

[0026] Figure 3 A schematic structural diagram of a power supply unit in a real-time power management system of the present disclosure is shown.

[0027] Figure 4 A schematic diagram showing the overall flow of a power management method in another embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0028] The following describes the embodiments of the present disclosure through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present disclosure from the information disclosed in this disclosure. The present disclosure can also be implemented or applied through different specific embodiments. The details of the present disclosure can also be modified or changed according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments and features in the embodiments of the present disclosure can be combined with each other unless there is a conflict.

[0029] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0030] Throughout the present disclosure, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, as described in the present disclosure, without conflicting requirements.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this disclosure, "a group" means two or more, unless otherwise specifically defined.

[0032] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same or similar components throughout the specification are denoted by the same reference numerals.

[0033] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0034] Although the terms first, second, etc. are used in this document to represent various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are represented. Furthermore, as used in this document, the singular forms "one", "an", and "the" are intended to also include the plural forms, unless there is a contrary indication in the context. It should be further understood that the terms "comprise" and "include" indicate the presence of features, steps, operations, elements, modules, projects, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or a group of other features, steps, operations, elements, modules, projects, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0035] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form unless the statement explicitly indicates otherwise. The term "comprising" as used in this specification is intended to specify specific features, regions, integers, steps, operations, elements, and / or components and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and / or components.

[0036] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the current message. Unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0037] With growing global awareness of environmental protection and increasingly stringent requirements for ship carbon emissions management, green shipping has become a mainstream trend in the industry. Cruise ships, as large mobile structures at sea, consume significant amounts of energy, making carbon emissions a particularly prominent issue. Therefore, while ensuring navigation safety and operational efficiency, achieving energy conservation and emission reduction, and improving energy efficiency, have become critical issues that need to be addressed in cruise ship power system design.

[0038] In related technologies, ships' main control systems often fail to dynamically adjust power usage strategies based on passengers' actual usage habits and personalized needs, resulting in significant energy waste and impacting living comfort. In the pursuit of energy conservation and consumption reduction, a one-size-fits-all approach to power rationing fails to account for the diverse needs of different passenger groups for environmental parameters such as temperature, lighting, and ventilation, ultimately reducing service quality.

[0039] In order to solve the above problems, an embodiment of the present disclosure provides an electric energy management system. Figure 1 In this embodiment, the power management system includes a power supply unit 100, a monitoring unit 400, and a main control unit 500. Monitoring units 400, deployed in each power consumption area 310, collect environmental data such as temperature, humidity, and air quality. Based on preset user comfort standards, the main control unit 500 automatically adjusts the operating status of key equipment such as air conditioning, lighting, and ventilation, ensuring the cabin environment is always optimal, significantly enhancing the passenger accommodation experience. Furthermore, by adjusting the power consumption equipment 301, the power generation output of the power generation device 200 is adjusted so that the corresponding carbon emissions meet preset carbon emission requirements.

[0040] Specifically, the power supply unit 100 is coupled to at least one power generation device 200, which is used to supply power to the vessel 300 and electrical equipment 301 within at least one power consumption area 310 on the vessel 300. The power generation output of the power generation device 200 varies in a positive correlation with power consumption. The power generation device 200, which can be a diesel generator or a fuel cell, is used to supply power to the entire vessel 300 and electrical equipment 301 (such as air conditioning systems, lighting, ventilation, and audio-visual entertainment systems) within at least one power consumption area 310 (such as a passenger cabin, wheelhouse, or rest area). When the power load increases, the power generation output is automatically increased, and when it decreases, the power generation output is reduced, thereby achieving intelligent matching between energy supply and demand and improving energy utilization efficiency.

[0041] The monitoring unit 400 is used to monitor environmental information within the power consumption area 310. Optionally, the monitoring unit 400 includes at least one of the following sensors: a temperature sensor, a humidity sensor, a lighting sensor, an air quality sensor, and a noise sensor. Specifically, the monitoring unit 400 can be deployed in at least one power consumption area 310 on the vessel 300 (such as a cabin, a wheelhouse, a rest area, a restaurant, etc.) to collect environmental parameters of the corresponding area in real time. For example, a temperature sensor is used to detect the air temperature in the current area, a humidity sensor is used to sense the relative humidity level in the air, a lighting sensor is used to measure the ambient light intensity, an air quality sensor is used to monitor the concentration of pollutants such as PM2.5, CO2, and VOCs in the air, and a noise sensor is used to detect noise within the space. By collecting multi-dimensional environmental data, the system can fully understand the comfort level of the user's space.

[0042] Optionally, the electrical equipment 301 includes at least one of the following: air conditioning equipment, air purification equipment, lighting equipment, and audio-visual equipment. The main control unit 500 dynamically adjusts the working status of the above equipment based on the collected environmental information and the preset user comfort standard. For example, when the temperature sensor detects that the temperature of a certain cabin is higher than the set threshold, the main control unit 500 will send a control signal to the corresponding air conditioning equipment to increase its cooling power; if the lighting sensor feedback indicates that the current ambient illumination is low, the brightness output of the lighting equipment will be automatically increased; in the case of poor air quality, the ventilation frequency of the air purification equipment will be started or increased; and in non-peak hours or when carbon emissions are restricted, the energy consumption of non-critical loads such as audio-visual equipment can be reduced first to achieve energy-saving goals and ensure core comfort needs.

[0043] exist Figure 1In an embodiment, the main control unit 500 is communicatively connected to the power supply unit 100 and at least one of the monitoring units 400, respectively, and is used to obtain the power generation of the power generation device 200 and the environmental information. When the power supply unit 100 is powered by the power generation device 200, the power consumption of the electrical equipment 301 in the power consumption area 310 is adjusted according to the environmental information of the power consumption area 310, subject to the constraints that the power supply requirements for the operation of the ship 300 are met and the carbon emissions corresponding to the power generation meet the preset carbon emission requirements, so that the environment in the power consumption area 310 meets the preset user comfort standard.

[0044] Specifically, the main control unit 500 can be communicatively connected to the power generation device 200 or a device capable of obtaining the power parameters of the power generation device 200. In some embodiments, the main control unit 500 obtains the power generation capacity, voltage, frequency, and other power parameters of the power generation device 200 in real time through a preset communication interface. Based on the navigation status of the vessel 300 (e.g., docked, sailing, or moored), the main control unit 500 determines whether the power generation device 200 is currently in a standalone power supply mode. Upon confirming that the power supply unit 100 is being powered by the power generation device 200, the main control unit 500 determines whether the current power generation capacity meets the basic power supply requirements of the vessel 300, including the stable operation of critical loads such as the propulsion system, navigation equipment, and emergency lighting. Secondly, based on the type of power generation device 200 (e.g., diesel generator, gas turbine, or fuel cell), the main control unit 500 estimates the current carbon emissions value based on the actual power generation capacity and compares it with a preset carbon emission cap to ensure that the power generation process complies with the Carbon Intensity Index (CII) requirements set by the International Maritime Organization (IMO) or other regulatory agencies.

[0045] The above two constraints must be met first, and their fulfillment is continuously monitored. If not, the related power generation and consumption behaviors will be adjusted. In some embodiments, the basic power supply requirements for vessel 300's operation take precedence over environmental requirements for carbon emissions. Only when these two constraints are met will the main control unit 500 increase power consumption in power-consuming area 310 for user comfort. Specifically, the main control unit 500 analyzes and determines environmental information (such as temperature, humidity, air quality, and noise level) obtained from the monitoring unit 400. For example, if the temperature sensor in a cabin area indicates that the indoor temperature is above a preset comfort threshold (e.g., 26°C), and the air quality sensor detects that the CO2 concentration is within a normal range, the main control unit 500 will prioritize increasing the cooling power of the air conditioning system. If the lighting is also too dim, the main control unit 500 will simultaneously adjust the brightness output of the lighting in the corresponding area.

[0046] Conversely, if power generation approaches the upper limit or carbon emissions approach the limit threshold, the main control unit 500 activates a priority management mechanism. While ensuring the power consumption of high-priority loads such as the propulsion system and cab equipment, it appropriately reduces the power consumption of non-critical equipment (such as the audio-visual entertainment system and background lighting) or temporarily shuts down some low-priority equipment to free up energy resources for maintaining user comfort. Furthermore, the system supports user-defined comfort standards, such as allowing passengers to set personalized temperature control preferences through smart terminals. The main control unit 500 then generates personalized control strategies for the power-consuming equipment 301 based on these preferences.

[0047] Furthermore, in some embodiments, the main control unit 500 is further configured with a priority management module that can set different control priorities based on the importance of device functions based on preset user comfort standards. For example, when power supply is tight, priority is given to ensuring the operation of basic comfort equipment such as air conditioning and ventilation, while appropriately limiting the power consumption of auxiliary equipment such as lighting and audio-visual equipment. This optimizes overall power efficiency while meeting basic user comfort needs and ensuring the achievement of carbon emission control targets.

[0048] Optionally, the preset user comfort standard includes a preset threshold range of at least one of the following environmental parameters: temperature range, humidity range, lighting range, air quality index range, and noise decibel range.

[0049] Specifically, the temperature range is typically set between 22°C and 26°C, which is suitable for the living and working needs of most passengers. For example, during high summer temperatures, if the monitoring unit 400 detects that the cabin temperature exceeds 26°C, the main control unit 500 will automatically increase the cooling power of the air conditioning system until the temperature returns to the set range. Conversely, during low winter temperatures, when the temperature falls below 22°C, the heating power is increased accordingly. The humidity range is generally controlled between 40% and 60% to prevent excessive dryness or humidity from affecting passenger health. If the humidity sensor indicates that the current humidity exceeds this range, the main control unit 500 will adjust the ventilation system or humidification / dehumidification equipment to restore the humidity to a suitable level. Lighting intensity may vary depending on the functional area (such as bedrooms, dining rooms, and conference rooms). For example, the recommended illumination level in bedrooms is 100 to 300 lux, while the dining room may require higher illumination (approximately 300 to 500 lux). If the lighting sensor detects that the actual illumination level is lower than the set value, the main control unit 500 will appropriately increase the brightness output of the lighting system. Considering that poor air circulation within enclosed spaces onboard the vessel 300 may lead to elevated CO2 concentrations or other excessive pollutants, this system sets the air quality index (AQI) to no more than 50. If the air quality sensor detects CO2 concentrations exceeding 1000 ppm or other harmful substances exceeding the standard, the main control unit 500 will activate or increase the frequency of the air purification equipment to ensure that air quality meets standards. To provide a quiet and comfortable resting and working environment, noise levels should be kept to no more than 60 dB(A) during the day and no more than 45 dB(A) at night. If noise sensors detect excessive noise levels in a specific area, the main control unit 500 may take measures to reduce the operating power of noise-generating equipment (such as machinery and entertainment facilities) or activate physical isolation measures such as sound barriers.

[0050] Optionally, in Figure 2 In the embodiment, the power management system further includes a user monitoring module 401, the monitoring range of the user monitoring module 401 covers at least one power consumption area 310, and is used to monitor user information within the power consumption area 310; wherein the user information includes a state of being occupied or unoccupied,

[0051] The main control unit 500 is also communicatively connected to the user monitoring module 401. Under the constraints of meeting the power supply requirements for the operation of the ship 300 and the carbon emissions corresponding to the power generation meeting the preset carbon emission requirements, in response to the user information being in an occupied state, the power consumption of the electrical equipment 301 is adjusted according to the environmental information within the power consumption area 310 to meet the preset user comfort standard.

[0052] In some embodiments, the user monitoring module 401 includes at least one of the following: a camera, an infrared sensor, and an induction sensor to accurately determine whether there is a person in the area and their activities.

[0053] Specifically, when the user monitoring module 401 detects the presence of a person in a power-consuming area 310 (e.g., the passenger cabin), the main control unit 500 obtains environmental information (e.g., temperature, humidity, air quality, noise level, etc.) from the monitoring unit 401. For example, if the temperature sensor reports an indoor temperature of 28°C, and the preset comfort level is between 24°C and 26°C, the main control unit 500 will increase the cooling power of the air conditioning equipment until the temperature returns to the set range. When occupied, the main control unit 500 prioritizes the normal operation of key comfort equipment (e.g., air conditioning, ventilation, and lighting) to ensure a comfortable passenger experience. At the same time, to balance energy conservation and carbon emission control goals, the main control unit 500 may appropriately reduce the power consumption of non-critical loads (e.g., background music systems and decorative lighting) to avoid unnecessary energy waste.

[0054] When the user monitoring module 401 detects that a power consumption area 310 has been unoccupied for an extended period, the main control unit 500 switches to energy-saving mode, automatically shutting down or reducing the power output of all non-essential equipment in that area. For example, in an unoccupied meeting room or corridor, the main control unit 500 might turn off lighting, reduce air conditioning power, or even temporarily stop the ventilation system, resuming normal operation upon reentry. This strategy not only helps conserve energy but also effectively reduces carbon emissions, aligning with the development trend of modern green shipping.

[0055] Optionally, in some embodiments, the monitoring unit 400 is further configured to monitor the power consumption value of the power-consuming equipment 301 in at least one power-consuming area 310 .

[0056] The main control unit 500 is further configured to adjust the power consumption of all the power-consuming devices 301 in the power-consuming area 310 according to a preset adjustment mechanism based on the power consumption values ​​of all the power-consuming devices 301 in the power-consuming area 310, so that the power consumption in the power-consuming area 310 does not exceed the preset power consumption value.

[0057] In another preferred embodiment, the monitoring unit 400 is not only used to collect environmental information (such as temperature, humidity, and air quality) within the power consumption area 310, but also to monitor the power consumption of each power-consuming device 301 within at least one power consumption area 310. For example, smart meters or power sensors are deployed in passenger cabins, restaurants, or office areas to obtain real-time power consumption data for loads such as air conditioning equipment, lighting systems, audio-visual equipment, and ventilation devices, and transmit this information to the main control unit 500.

[0058] Based on the real-time power consumption data of each power-consuming device 301, the main control unit 500 calculates the total power consumption of the entire power-consuming area 310 and compares it with a preset power consumption upper limit. If the current consumption value approaches or exceeds the set threshold, the energy-saving adjustment mechanism is triggered. When the power consumption value is detected to be approaching the preset upper limit, the main control unit 500 prioritizes reducing the power consumption of low-priority devices, such as dimming the lighting in non-critical areas and turning off the background music system. If power consumption continues to increase, the operating time or power of medium-priority devices (such as some audio and video equipment) is gradually reduced. The normal operation of high-priority devices (such as propulsion auxiliary systems, navigation equipment, and basic air conditioning and ventilation systems) is always guaranteed. The device priority is determined based on preset user comfort standards and the normal operation of the vessel 300.

[0059] In some embodiments, after obtaining the real-time power consumption data of all power-consuming devices 301 in the power consumption area 310, the main control unit 500 sorts them from high to low according to power consumption, and formulates corresponding power consumption control strategies based on the sorting results, thereby achieving orderly management and optimized allocation of overall energy consumption.

[0060] For example, in a cabin or public area, the main control unit 500 collects the current power and cumulative power consumption of each electrical device 301 through the smart metering module deployed on it, calculates the real-time power consumption value of each device, and ranks these devices from high to low according to power consumption. Based on this, the main control unit 500 implements the following control logic: when it detects that the total power consumption of the area is approaching or exceeds the preset power consumption limit, the main control unit 500 first limits the power of the top-ranked high-energy-consuming devices (such as high-power audio and video systems, decorative lighting, electric curtains, etc.) that are non-critical loads, such as reducing operating power, shortening operating hours, or temporarily shutting down.

[0061] If the above measures still fail to restore electricity consumption to a safe range, further moderate reductions will be made to medium-energy-consuming equipment (such as some lighting fixtures, background music systems, small appliances, etc.) to ensure that energy-saving goals are achieved without affecting the basic comfort experience of users.

[0062] For low-energy but functionally important equipment such as air-conditioning controllers, ventilation systems, basic lighting, and emergency equipment, the main control unit 500 always maintains their normal operation without being affected to ensure the safe operation of the ship 300 and the comfort of users.

[0063] Optionally, it also includes an alarm unit for obtaining the total power consumption value in at least one power consumption area 310, and generating an alarm message when the power supply unit 100 is powered by shore power and the total power consumption value of the power-consuming equipment 301 in the power consumption area 310 exceeds a preset power consumption value.

[0064] Specifically, after the vessel 300 docks and connects to an external shore power source, the main control unit 500 automatically detects the change in power source and switches to shore power mode. In this mode, while no longer relying on the generator 200 for energy, effective monitoring of power usage in each power-consuming area 310 is still required to prevent safety hazards such as shore power system tripping and line overheating due to power overload, while also meeting the port's energy management requirements.

[0065] The alarm unit, through data exchange with the monitoring unit 400 and the main control unit 500, obtains the total power consumption of the power consumption area 310 in real time and compares it with the preset power consumption limit. For example, the maximum allowable power of a cabin area in shore power mode is 3kW. When multiple power-consuming devices 301 (such as air conditioning, lighting, and audio-visual systems) are running simultaneously, causing the total power to reach or exceed this limit, the alarm unit immediately triggers an alarm mechanism, which may include but is not limited to: sending a visual / audio alarm to the crew console; pushing alarm information to mobile terminals via the shipboard communication system; displaying an indication of the exceeding equipment and suggesting adjustment measures on the local display interface; and linking the main control unit 500 to implement an automatic power-limiting strategy, prioritizing the shutdown of non-critical equipment to reduce the load.

[0066] Optionally, the power consumption area 310 is functionally divided into a living cabin area, an operating cabin area and a public cabin area; it also includes multiple monitoring units 400 for separately monitoring the environmental information of each cabin area; each cabin area is provided with a corresponding user comfort standard.

[0067] Specifically, the living quarters area includes passenger cabins, crew rest rooms, and other spaces used for long-term stays. This area requires high levels of environmental comfort, and therefore its preset user comfort standards typically include strict temperature and humidity ranges, air quality index, noise levels, and appropriate lighting intensity. Monitoring unit 400 deploys various sensors in this area, such as temperature and humidity sensors, CO2 concentration sensors, noise sensors, and illumination sensors, to ensure the system can sense and adjust environmental conditions in real time, ensuring a high-quality rest and living experience for users.

[0068] The operating cabin area includes spaces with a high degree of work intensity, such as the driver's cab, engine control room, and maintenance room. These areas prioritize operational stability and safety, so user comfort standards focus on temperature control, ventilation efficiency, and localized lighting intensity, while requirements for humidity and noise levels are relatively relaxed. Furthermore, the main control unit 500 can dynamically adjust the equipment's operating mode based on the work period. For example, it can maintain high-power operation during on-duty hours and switch to energy-saving mode during off-duty hours to reduce energy consumption.

[0069] Public areas include dining rooms, meeting rooms, recreational halls, corridors, and other areas where multiple people gather or pass through for short periods. Comfort standards in these areas must balance the needs of the group and energy conservation goals, typically employing flexible parameter settings. For example, dining rooms should maintain good air circulation and appropriate lighting during meal times, while air conditioning output and lighting levels can be appropriately reduced during off-peak hours. Corridors should primarily ensure basic lighting and safe passage conditions to avoid unnecessary energy waste.

[0070] Furthermore, the monitoring unit 400 in each cabin independently collects its corresponding environmental information and transmits the data to the main control unit 500 for analysis and processing. Based on the user comfort standards of each cabin, the main control unit 500 formulates personalized control strategies for electrical equipment 301. For example, when power generation is limited or carbon emissions are approaching the upper limit, priority is given to ensuring the operation of core equipment in the operating cabin, followed by meeting the basic comfort needs of the living cabin, and finally considering the power supply of auxiliary equipment in the public cabin.

[0071] Optionally, in Figure 3 In an embodiment, the power supply unit 100 includes:

[0072] At least one battery energy storage module 101 is used to store electricity generated by an external power source (such as shore power or a photovoltaic system) or a power generation device 200 (such as a diesel generator, gas turbine, or fuel cell). This battery energy storage module 101 can be composed of lithium-ion batteries, lead-acid batteries, or other high-energy-density energy storage units and is equipped with a battery management system (BMS) to monitor battery status (such as voltage, current, and SOC (State of Charge)), balance the charge and discharge process, and prevent safety hazards such as overcharging and over-discharging.

[0073] The power regulation module 102 is respectively coupled to the battery energy storage module 101, the power-consuming device 301 and the main control unit 500, and is configured to adjust the output power of the battery energy storage module 101 to the corresponding power-consuming device 301 according to the adjustment information generated by the main control unit 500 for adjusting the power consumption of the power-consuming device 301.

[0074] When the ship 300 is docked and connected to shore power, the power generation device 200 has excess output power during navigation, or there is renewable energy input, the main control unit 500 controls the battery energy storage module 101 to store electrical energy, temporarily storing the excess electrical energy in the battery for subsequent use.

[0075] The power regulation module 102 receives power allocation instructions from the main control unit 500 and dynamically adjusts output power based on the environmental conditions of the power consumption area 310, user comfort standards, device priorities, and energy consumption constraints. For example, when the air conditioning equipment in the living area needs to increase cooling power, the power regulation module 102 can prioritize the allocation of stored energy to support it. During off-peak hours in the public cabin area, the lighting output power is reduced to save energy.

[0076] In another embodiment of the present disclosure, a power management method is provided, which is applied to any of the power management systems described above. Figure 4 In an embodiment, the power management method includes:

[0077] Step S1: In response to the switching operation of switching the power supply state to the power generation device, the power generation amount of the power generation device and the environmental information of at least one power consumption area are obtained; wherein the power generation device is used to supply power to the power-consuming equipment and ship operation in the power consumption area.

[0078] Step S2: Based on the constraints of meeting the power supply requirements for the operation of the ship and the carbon emissions corresponding to the power generation meeting the preset carbon emission requirements, adjust the power consumption of the electrical equipment in the power consumption area according to the environmental information of the power consumption area, so that the environment in the power consumption area meets the preset user comfort standards.

[0079] Specifically, when the ship switches from external power supply mode (such as using shore power when docked) to power supply mode of power generation device (such as activating diesel generators or gas turbines after leaving the port), the main control unit obtains the real-time power generation of the power generation device: by collecting the output power and total power generation of the current power generation device; obtaining environmental information of each power consumption area: including temperature, humidity, air quality index (AQI), light intensity and other parameters. These data are uploaded in real time by monitoring units deployed in different functional areas such as living cabin area, operation cabin area, and public cabin area.

[0080] The main control unit first assesses whether current power generation is sufficient to support the normal operation of critical loads such as the ship's propulsion system, navigation equipment, emergency lighting, and ventilation systems. If power generation capacity is insufficient, priority is given to ensuring the continued operation of critical equipment, while limiting the power consumption of non-critical equipment. The system then uses a pre-established power generation-carbon emissions mapping table to calculate the total carbon emissions under the current power generation mode based on the type of generator (e.g., the CO2 emission coefficient per unit of power generated by a diesel generator) and compares this to a preset carbon emission cap. If carbon emissions approach or exceed a set threshold, the main control unit implements power rationing based on the priority of each power consumer. For example, it reduces the power of non-essential lighting; adjusts the set temperature range for air conditioners; and shuts down high-energy-consuming, low-priority devices such as electric curtains and entertainment systems. While ensuring power supply security and environmental compliance, the main control unit further dynamically adjusts the operating status of relevant power consumers based on environmental information from each power consumption area to maintain or enhance user comfort. For example: if the indoor temperature in the living cabin is detected to be too high, the main control unit can appropriately increase the air conditioning cooling power; when the flow of people in the public area decreases, the system automatically dims the lights to save energy; if the user of a room sets a personalized temperature preference (such as 24°C), the system will give priority to meeting the set value while minimizing additional energy consumption.

[0081] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, any equivalent modifications or alterations made by a person skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the scope of protection of this disclosure.

Claims

1. An electric energy management system, characterized in that: Applicable to ships; including: a power supply unit coupled to at least one power generation device, configured to supply power to the ship and electrical equipment within at least one power consumption area on the ship; wherein the power generation of the power generation device is positively correlated with the total power demand of the ship; At least one monitoring unit, used to monitor environmental information within the power consumption area; A main control unit is communicatively connected to the power supply unit and at least one of the monitoring units, and is used to obtain the power generation of the power generation device and the environmental information. When the power supply unit is powered by the power generation device, the main control unit adjusts the power consumption of the electrical equipment in the power consumption area according to the environmental information of the power consumption area, subject to the constraints that the power supply requirements for the operation of the ship are met and the carbon emissions corresponding to the power generation meet the preset carbon emission requirements, so that the environment in the power consumption area meets the preset user comfort standard.

2. The power management system according to claim 1, characterized in that: The monitoring unit includes at least one of the following sensors: a temperature sensor, a humidity sensor, a lighting sensor, an air quality sensor, a noise sensor; and / or, The electrical equipment includes at least one of the following: air conditioning equipment, air purification equipment, lighting equipment and audio-visual equipment.

3. The power management system according to claim 1, characterized in that: The preset user comfort standard includes a preset threshold range of at least one of the following environmental parameters: temperature range, humidity range, lighting range, air quality index range, and noise decibel range.

4. The power management system according to claim 1, characterized in that: The monitoring unit includes a user monitoring module, the monitoring range of which covers at least one power consumption area and is used to monitor user information in the power consumption area; wherein the user information includes a user state or an unuser state; The main control unit is also communicatively connected to the user monitoring module. Under the constraints of meeting the power supply requirements for the operation of the ship and the carbon emissions corresponding to the power generation meeting the preset carbon emission requirements, in response to the user information being in an occupied state, the power consumption of the electrical equipment is adjusted according to the environmental information in the power consumption area to meet the preset user comfort standards.

5. The power management system according to claim 4, characterized in that: The monitoring unit is further used to monitor the power consumption value of the power-consuming equipment in at least one power-consuming area; The main control unit is further configured to adjust the power consumption of the power-consuming devices according to the power consumption values ​​of all the power-consuming devices in the power-consuming area according to a preset adjustment mechanism, so that the power consumption in the power-consuming area does not exceed the preset power consumption value.

6. The power management system according to claim 5, characterized in that: The user monitoring module includes at least one of the following: a camera, an infrared sensor, and an induction sensor.

7. The power management system according to claim 1, characterized in that: It also includes an alarm unit for obtaining the total power consumption value in at least one power consumption area, and generating an alarm message when the power supply unit is powered by shore power and the total power consumption value of the power-consuming equipment in the power consumption area exceeds a preset power consumption value.

8. The power management system according to claim 1, characterized in that: The power consumption area is divided into a living cabin area, an operating cabin area and a public cabin area according to function; it also includes multiple monitoring units for separately monitoring the environmental information of each cabin area; each cabin area is respectively provided with a corresponding user comfort standard.

9. The power management system according to claim 1, characterized in that: The power supply unit includes: At least one battery energy storage module for storing shore power or electrical energy generated by the power generation device; The power regulation module is respectively coupled to the battery energy storage module, the power-consuming device and the main control unit, and is configured to adjust the output power of the battery energy storage module to the corresponding power-consuming device according to the adjustment information generated by the main control unit for adjusting the power consumption of the power-consuming device.

10. A method for electric energy management, characterized in that: The power management system according to any one of claims 1 to 9 comprises: In response to a switching operation of switching the power supply state to a power generation device, obtaining power generation of the power generation device and environmental information of at least one power consumption area; wherein the power generation device is used to supply power to power-consuming equipment and ship operations in the power consumption area; Based on the constraints of meeting the power supply requirements for the operation of the ship and the carbon emissions corresponding to the power generation meeting the preset carbon emission requirements, the power consumption of the electrical equipment in the power consumption area is adjusted according to the environmental information of the power consumption area, so that the environment in the power consumption area meets the preset user comfort standards.

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