CN220374738U - Energy management system, propulsion system and water area movable equipment - Google Patents

Abstract

The application provides an energy management system, a propulsion system and water area movable equipment. The energy management system is installed on movable equipment in a water area, and the movable equipment in the water area is provided with a power device. The energy management system includes: at least two energy storage devices for supplying power to the power device; at least two energy supply devices for charging the energy storage devices; the control device is connected between the energy storage device and the energy supply device, at least part of electric energy of the energy storage device is transmitted to the power device through the control device, at least part of electric energy of the energy supply device is transmitted to the energy storage device through the control device, and the control device is used for starting the energy supply device matched with the state and the energy storage device matched with the state based on the current state of the energy management system. By using the energy management system to enable the adaptive energy supply device and the energy storage device, the cruising ability of the movable equipment in the water area can be improved.

Description

Energy management system, propulsion system and water area movable equipment

Technical Field

The application relates to the field of energy management, in particular to an energy management system, a propulsion system and water area movable equipment.

Background

In the related art, the boat mainly uses the traditional diesel engine as a power source, however, dirty oil and tail gas can be generated by combusting diesel oil, noise and pollution are high, and serious pollution is caused to surrounding air, environment and water quality. In one solution, the diesel engine may be replaced with an electric propulsion system to achieve clean power. However, the electric propulsion method is prone to have a problem of insufficient cruising ability.

Disclosure of Invention

In view of the foregoing, the present application provides an energy management system, a propulsion system, and a water-area mobile device.

Specifically, the application is realized through the following three technical schemes:

in a first aspect, the present application provides an energy management system for installation in a water area mobile device having a power unit, the energy management system comprising:

at least two energy storage devices for supplying power to the power device;

at least two energy supply devices for charging the energy storage devices;

the control device is connected between the energy storage device and the energy supply device, at least part of electric energy of the energy storage device is transmitted to the power device through the control device, at least part of electric energy of the energy supply device is transmitted to the energy storage device through the control device, and the control device is used for starting the energy supply device matched with the state and the energy storage device matched with the state based on the current state of the energy management system.

In a second aspect, the present application provides a propulsion system comprising a power plant and the energy management system of the first aspect described above.

In a third aspect, the present application provides a water area mobile device comprising a mobile body and a propulsion system in the second aspect, the propulsion system being provided to the mobile body.

After the technical scheme is applied, the application has at least the following beneficial effects:

through setting up two at least energy supply devices and two at least energy memory, diversified energy supply device is favorable to the make full use of various energy to come for the energy memory power supply, and a plurality of energy memory are favorable to increasing the duration, also can realize redundancy simultaneously, reduce the mobile equipment in waters and can't navigate because of lacking electric power's probability. Further, through the current state of the energy management system, the control device can enable the energy supply device and the energy storage device which are matched with the current state, and therefore effective distribution and utilization of various energy sources by the energy management system can be improved.

Drawings

Fig. 1 is a block diagram of an energy management system according to an exemplary embodiment of the present application.

Fig. 2 is a block diagram of an energy management system with a bus switch according to an exemplary embodiment of the present application.

FIG. 3 is a block diagram illustrating an energy management system when the number of energy storage devices and power devices are different in accordance with an exemplary embodiment of the present application.

FIG. 4 is a block diagram of an energy management system when the number of energy storage devices is the same as the number of power devices, as illustrated in an exemplary embodiment of the present application.

Fig. 5 is a block diagram of an energy management system with a control device and a display device connected thereto according to an exemplary embodiment of the present application.

Fig. 6 is a block diagram of an energy management system including a plurality of energy delivery devices according to an exemplary embodiment of the present application.

Fig. 7 is a block diagram of an energy management system with remaining electrical devices connected thereto, as shown in an exemplary embodiment of the present application.

Fig. 8 is a block diagram of a propulsion system according to an exemplary embodiment of the present application.

Fig. 9 is a block diagram of a water area mobile device according to an exemplary embodiment of the present application.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

In the related art, an electric propulsion system can be used for pushing movable equipment in a water area to navigate instead of a diesel engine so as to realize clean power. However, the electric propulsion method is prone to have a problem of insufficient cruising ability.

To this end, the present application proposes an energy management system, referring to fig. 1, the energy management system 10 may be installed on a water area mobile device 11, the water area mobile device 11 further has a power unit 12, and the energy management system 10 may include:

at least two energy storage devices 101 for powering the power plant 12;

at least two energy supply devices 102 for charging the energy storage device 101;

the control device 103 is connected between the energy storage device 101 and the energy supply device 102, at least part of the electric energy of the energy storage device 101 is transmitted to the power device 12 via the control device 103, at least part of the electric energy of the energy supply device 102 is transmitted to the energy storage device 101 via the control device 103, and the control device 103 is used for enabling the energy supply device 102 adapted to the state and the energy storage device 101 adapted to the state based on the current state of the energy management system 10.

The energy storage device may be, but not limited to, a lithium battery, a sodium battery, a hydrogen fuel cell, etc. The water area movable equipment can be any of various water equipment with the size of ships, boats, warships and the like, and can comprise, but is not limited to, various water equipment such as fishing, transportation, cruising and the like, and when the water equipment is suitable for the application of the energy management system 10, the water equipment falls into the protection scope of the application.

Through installing a plurality of energy storage device, when one of them energy storage device energy depletes, still can supply power through other energy storage device of controlling means control, extra increase energy storage device has brought the promotion on the continuation of the journey, has improved the continuation of the journey problem.

Further, the at least two energy supply devices may be two or more of a photovoltaic charging device, a generator, a wind power charging device, an inverse charging device or a shore charging interface; the shore charging interface can be connected with shore charging equipment and receives electric energy from the shore charging equipment. Because the main energy of the movable equipment in the current water area is mainly propelled by a traditional diesel engine, along with the increasing severity of environmental pollution, the application of new energy on boats is gradually increased, and more of the new energy is stored by a storage battery, and the driving performance is improved by adopting electric propulsion, so that noise pollution and air pollution are reduced.

The wind power charging device can generate power by using natural wind, and can also generate power by using air flow generated by relative movement of movable equipment and air in a water area. The back-charging may rely on the flow of water relative to the power plant to drive the power plant to effect the back-charging. The shore charging equipment can be high-voltage quick charging equipment, also can be commercial power slow charging equipment, and specific charging power, charging voltage and type of shore charging interface are all not limited in the application.

It can be understood that the installation position of the different kinds of energy supply devices can be changed according to actual requirements, for example, the photovoltaic charging device needs a large area and long-time sunlight irradiation, so when the photovoltaic charging device is selected as one of the energy supply devices, the photovoltaic charging device can be installed at a higher position (such as the top) on the movable equipment in the water area, around (such as the side plate of the movable equipment in the water area), and the like. Correspondingly, when the wind power charging device is selected as one of the energy supply devices, the wind power charging device can be arranged on a place with better ventilation on movable equipment in a water area. The installation of other energy supply devices is based on the characteristics and installation requirements of the energy supply devices, and is not described in detail herein, and the given installation modes are only exemplary and are not intended to limit the present application.

The ship carries renewable or convertible energy, so that the energy variety of the ship is richer, the energy can be timely supplemented when the ship is moored when the ship is provided with an onshore charging interface, and the ship can be further charged rapidly by arranging corresponding charging piles, charging stations and the like.

Based on the above scheme, the state of the energy management system may include whether the energy storage device is powered. The state in which the energy storage device is powered may be understood as the state in which the energy storage device has sufficient power to power the power device or other electrical devices that may be present, and is in communication with the power device or other electrical devices that may be present. The condition that the energy storage device is not capable of supplying power may include one or more of low electric quantity, user operation to shut down the energy storage device, failure, etc., and it may be understood that the energy storage device cannot supply enough electric power under the control of the control device.

Referring to fig. 2, the control device 103 may include a bus 201 and at least one bus switch 202 connected to the bus, at least two energy storage devices 101 are connected to the bus 201, a plurality of power devices 12 are connected to the bus 201, and the bus switch 202 is connected between points where two adjacent power devices 12 are connected to the bus 201.

By way of example, fig. 2 shows only two portions of a bus bar where both the energy storage device and the power device are located separated by a bus bar switch. In the above scheme, if the number of the bus-bar switches is N, the bus may be divided into n+1 parts, one or more of the energy storage device and the power device may be selected, and the selected device is divided into n+1 parts connected to n+1 parts of the corresponding bus bar, so that the control device 103 may enable the energy storage device adapted to the energy management system based on whether the energy management system can be powered in a plurality of ways.

Specifically, the following description will be given by way of examples.

As an example, the plurality of energy storage devices 101 and the plurality of power devices 12 are each divided into a plurality of portions connected to corresponding portions of the bus, and when at least two energy storage devices 101 are each capable of supplying power, at least two energy storage devices 101 may be activated, and all of the bus switches 202 are turned off, so that each energy storage device 101 supplies power to a corresponding power device 12;

as an example, on the basis of the above example, when the number of the energy storage devices 101 is greater than two and there is at least one energy storage device 101 to suspend power supply, at least two energy storage devices 101 capable of power supply may be activated, and the partial bus switch 202 is closed so that at least two energy storage devices 101 capable of power supply all the power devices 12, wherein the power device 12 corresponding to the energy storage device 101 suspending power supply is supplied by the energy storage device 101 adjacent to the energy storage device 101 capable of power supply suspending power supply;

as an example, when only one energy storage device 101 is capable of powering, that energy storage device 101 may be activated, closing all of the bus switches 202, to enable that energy storage device 101 to power all of the power devices 12.

As an example, the energy supply device may be further divided into a plurality of parts (not shown in fig. 2, reference may be made to the connection relationship between the energy storage device 101 and the bus 201), and the parts are respectively connected to n+1 parts of the bus, so that when a part of the energy supply device fails, a part of the bus switch 202 can be closed to enable the energy supply device capable of supplying power to charge a part or all of the energy storage device 101.

In the above scheme, the number of the energy storage devices may be the same as or different from that of the power devices. As an embodiment may refer to fig. 3, the energy management system 30 may include three energy storage devices, two power devices, and a control device 304, and the specific connection relationship refers to fig. 3.

When the first energy storage device 301 fails and the second energy storage device 302 has low electric quantity, the control device 304 controls the first bus switch 3041 and the second bus switch 3042 to be closed, so that the third energy storage device 303 is connected to the bus 3043, and the first power device 305 and the second power device 306 acquire electric power from the third energy storage device 303 from the bus 3043, so that the third energy storage device 303 supplies electric power to all the power devices simultaneously.

When both the first energy storage device 301 and the second energy storage device 302 are capable of supplying power, the first bus switch 3043 and the second bus switch 3042 may be turned off, so that the first energy storage device 301 supplies power to the first power device 305 and the second energy storage device 302 supplies power to the second power device 306.

When the first energy storage device 301 and the third energy storage device 303 are both capable of supplying power, the second energy storage device 302 cannot supply power (such as failure, low electric quantity, etc.), the first bus switch 3041 may be opened, and the second bus switch 3042 may be closed, so that the first energy storage device 301 supplies power to the first power device 305, and the third energy storage device 303 supplies power to the second power device 306.

As an example, referring to fig. 4, for an energy management system 40 comprising three energy storage devices and three power devices, the connection relationships are as follows:

when the first energy storage device 401, the second energy storage device 402, and the third energy storage device 403 are all capable of supplying power, the three energy storage devices may be started and the first bus switch 4041 and the second bus switch 4042 are all turned off, so that the three energy storage devices and the three power devices form a one-to-one power supply relationship, and each energy storage device supplies power for the corresponding power device. It will be appreciated that this situation may be used as a control strategy when the energy storage devices are all operating properly.

When any one of the three energy storage devices pauses power supply, if the first energy storage device 401 pauses power supply due to insufficient electric quantity, the other energy storage devices can normally supply power, the second energy storage device 4041 and the third energy storage device 4042 can be started, the first bus switch 4041 is closed, the second bus switch 4042 is opened, so that the second energy storage device 402 supplies power to the first power device 405 and the second power device 406 at the same time, and the third energy storage device 403 supplies power to the third power device 407 only. It will be appreciated that in other examples the bus may be closed end to end, and thus a third bus switch (not shown) may be provided between the bus portion to which the first energy storage device is connected and the bus portion to which the third energy storage device is connected.

When only one energy storage device can supply power, for example, only the first energy storage device 401 can supply power normally, the first energy storage device 401 can be started, and the first bus switch 4041 and the second bus switch 4042 are closed, so that the first energy storage device 401 can supply power to all power devices.

In this application, waters mobile device still can include a plurality of controlling means and display device, and the controller is used for outputting power device's start-up, stop, signal such as direction of rotation, and display device is used for power device and energy storage device's real-time running state parameter display, waters mobile device's operation information display, trouble information display etc. can also be used for user input control command when display device is the touch-sensitive screen.

Referring to fig. 5, the water movable apparatus 11 includes a first control unit 506 and a second control unit 507 connected to a first power unit 504 and a second power unit 505, and a display unit 508 connected to the first power unit 504 and the second power unit 505.

As an example, the control device may include a dc power distribution board, which may perform dc power distribution and information conversion, and may be used as a communication hub for mobile devices in the whole water area; the power device can comprise a motor and a motor controller, and can be an outboard motor, an inboard motor, a pod propeller and the like; the energy storage device may include a battery system and a BMS (Battery Manage System, battery management system); the control device can be one or a combination of a plurality of hardware such as a tiller, a remote control box and a steering wheel, and can be in communication connection with a motor controller so as to control the starting, stopping, forward rotation, reverse rotation and the like of the motor. In order to enable the energy management system to stably operate, the energy management system can further comprise a control system power supply, wherein the control system power supply can comprise a main power supply, a standby power supply and an emergency power supply, and can form a three-loop with the control device. When the main power supply fails, the main power supply can be switched to the standby power supply, and the emergency power supply is connected with the control device at any time, so that the uninterrupted power of the control system is ensured in the switching process of the main power supply and the standby power supply. In practical applications, the primary power source and the backup power source may be replaced by a plurality of energy storage devices.

On the basis of the above scheme, the first control device 506 and the second control device 507 can respectively control the first power device 505 and the second power device 506, or any control device can perform control on all power devices, so as to control all power devices at the same time, or cope with the fault condition of any control device. A control mode changeover switch may be provided on at least one of the control devices, and when the changeover switch is pressed by a user, a changeover may be made between a mode in which the two power devices are controlled by the dual control device and a mode in which the two power devices are controlled by the single control device, respectively.

In addition to any of the embodiments of the energy management system described above, the water area mobile device may further include a sail arrangement; the control device is also used for informing the sail device to work when the at least two energy storage devices comprise at least one energy storage device which stops supplying power, so that the movable equipment in the water area can drive by taking wind as power.

In the present application, the sail device may be a structure for controlling the sails to lift or shrink, so that the water area movable device can be switched to the working state of the sails, and at this time, the water area movable device may be a single sailboat, a double sailboat, a triple sailboat, or other sailboats. Accordingly, in the present application, the sail may also be a manually activated or deactivated device, the control means being used to inform the operation of the sail device, or alternatively the control means being used to inform the rudder (person handling the sail) of the sail.

When the power supply of part of the energy storage devices is suspended, the power devices can be powered by the energy storage devices capable of being powered, and meanwhile, the sail devices are started to work, so that the movable equipment in the water area can sail under the condition that the electric power and the sails simultaneously provide driving force. When all of the energy storage devices are powered down, the sail device may be activated to operate so that the water area mobile device may sail with the propulsion provided by the sail.

The energy management system is arranged on the movable water area equipment with the sails, so that power can be provided for sailing when the energy storage device is partially or completely invalid, and when the sail device is arranged on the movable water area equipment, the control operation can be realized through the control device according to whether the energy storage device is powered or not, so that the manpower is saved.

The control means is further adapted to limit the power of the power means such that the power of the power means does not exceed the power that can be provided by the energy storage means for powering the power means when the at least two energy storage means comprise energy storage means for partly suspending the power supply.

After the scheme is applied, when the energy storage device is partially suspended from power supply, the control device can limit the power so that the energy storage device is not overloaded under the condition that the power device has power input, so that the stability of the energy management system is improved, and the possibility of further faults of the energy storage device in operation is reduced. If the power-suspended energy storage device is caused by a fault, limiting the power of the working energy storage device can also slow down the power loss so that personnel on movable equipment in the water area have enough time to react to the fault.

Further, for the movable water area equipment provided with the control device, the control device can be informed of the limited power through the control device, so that the maximum throttle value output by the control device is limited to a preset value, and the power of the power device does not exceed the power provided by the energy storage device for supplying power to the power device.

In one aspect of the present application, the status of the energy management system may include a navigational status of the energy management system as the water area mobile device navigates. Correspondingly, the purposes of the control device can be as follows: based on the sailing state, an energy supply device matched with the sailing state and an energy storage device matched with the sailing state are started.

On the basis of the above scheme, referring to fig. 6, in the energy management system, the energy supply device 102 may include a photovoltaic charging device 601, a generator 602, a wind power charging device 603, an inverse charging device 604, and a shore charging interface 605; the navigational state may include position information of the movable equipment in the body of water and the operating state of the power plant.

When the position information is on shore and the working state is off (for example, when the shore is berthed), the shore charging interface 605, the photovoltaic charging device 601 or the generator 602 is started to charge at least one energy storage device 101;

when the position information is on the shore and the working state is on (for example, when going in and out of the harbor), the photovoltaic charging device 601 or the generator 602 is started to charge at least one energy storage device 101;

when the location information is offshore and the operating state is off (e.g., when off-shore berthing), the photovoltaic charging device 601 or the generator 602 is activated to charge the at least one energy storage device 101;

when the location information is offshore and the operating state is on (e.g., while sailing at sea), the photovoltaic charging device 601, the wind charging device 603 or the generator 602 is activated to charge the at least one energy storage device 101;

the sailing state further includes an enabling state fed back by the sail device of the movable apparatus in the water, and when the position information is offshore, the working state is on, and the enabling state is enabled (for example, when sailing a sailing boat, the photovoltaic charging device 601, the wind charging device 603, the anti-charging device 604 or the generator 602 is enabled to charge the at least one energy storage device 101.

It is understood that the onshore and offshore in the location information are of relative concept. In the present application, by shore may be meant a range having a distance from the shore of less than a predetermined distance _， Or the body of water within the port, including the body of water required for mooring. The predetermined distance or port range may be defined based on the body of water and the specific situation of the movable equipment in the body of water. While offshore may refer to distances from the shore that are greater than a predetermined distance or ranges in the body of water other than offshore.

The above mentioned activation of the energizing means may be realized by the control means. The power device can be opened or closed in the working state, and proper monitoring means such as rotating speed, voltage, power and the like can be selected according to actual conditions, and different specific means fall into the protection scope of the application.

After the scheme is applied, the control device can learn four navigation states of the movable equipment in the water area according to the difference of the position information and the difference of the working states, and can charge the energy storage device according to the available energy supply devices controlled by the control device under each working condition because the available states of the different energy supply devices are different, and the control can be completed without the state of the energy supply devices fed back. The energy storage device can be guaranteed to supplement electric energy in each state of the movable equipment in the water area, energy sources in different sailing states can be fully utilized, and the cruising ability of the movable equipment in the water area is improved.

On the basis that the state of the energy management system can comprise a scheme of the navigation state of the energy management system along with the navigation of the movable equipment in the water area, the navigation state is determined when the control device receives the position information and the working state fed back by the power device; or, the navigation state is determined when the control device receives the instruction input by the user.

The navigation state is a variable according to which the control device is based, so the navigation state can be understood as a key factor for controlling the energy storage device and the energy supply device, and therefore, when the power device or other devices do not have the capability of feeding back the position information and the working state, or the navigation state cannot be obtained accurately, the user can input a command to intervene.

When the sailing state can be determined by the information fed back by the power device or according to the instruction input by the user, the application range of the energy management system is increased, and the control scheme of the sailing state can be implemented for the mobile equipment configured in different water areas. Correspondingly, the two control schemes can be performed alternatively, or the two control modes can be applied to the same energy management system with the priority of the scheme of inputting the instruction by the user.

On the basis of the scheme that the state of the energy management system can comprise the navigation state of the energy management system along with the navigation of the movable equipment in the water area, the energy supply device can comprise a photovoltaic charging device, a generator, a wind power charging device and a reverse charging device:

when the position information is offshore and the working state is on, the photovoltaic charging device, the wind power charging device and the generator respectively feed back the charging power of the photovoltaic charging device, the wind power charging device and the generator to the control device, and the control device is also used for starting an energy supply device corresponding to the maximum charging power to charge at least one energy storage device;

the sailing state further comprises an enabling state fed back by the sail device of the movable equipment in the water area, when the position information is offshore, the working state is on, and the enabling state is on, the photovoltaic charging device, the wind power charging device, the anti-charging device and the generator respectively feed back self charging power to the control device, and the control device is further used for enabling an energy supply device corresponding to the maximum charging power to charge at least one energy storage device.

After the scheme is applied, when a plurality of energy supply devices are in an available state, the power can be used as a judging condition, and the energy supply device with larger power is selected for supplying power, so that the energy storage device can supplement electric energy more quickly.

On the basis that the state of the energy management system can comprise a scheme of the sailing state of the energy management system along with the sailing of the movable equipment in the water area, the energy supply device can also comprise a photovoltaic charging device, a generator, a wind power charging device and a reverse charging device; the sailing state also comprises an enabling state fed back by the sail device of the movable equipment in the water area:

when the position information is offshore, the working state is on, and the starting state is on, the control device obtains the current navigational speed of the movable equipment in the water area, and under the condition that the current navigational speed reaches the preset speed, the inverse charging device is started to charge at least one energy storage device; starting a photovoltaic charging device, a generator or a wind power charging device to charge at least one energy storage device under the condition that the current navigational speed does not reach the preset speed; as an example, when the speed reaches the preset speed, the inverse charging device may be directly used to charge the energy storage device, and when the speed is lower than the preset speed, the charging mode with the highest charging power of the photovoltaic charging device, the generator and the wind power charging device may be used to charge the energy storage device; or (b)

When the position information is offshore, the working state is on, the starting state is on, the control device obtains the current navigational speed of the movable equipment in the water area, and under the condition that the current navigational speed reaches the preset speed, the photovoltaic charging device, the wind power charging device, the inverse charging device or the generator is started to charge at least one energy storage device; under the condition that the current navigational speed is smaller than the preset speed, a photovoltaic charging device, a generator or a wind power charging device is started to charge at least one energy storage device; as an example, when the speed reaches the preset speed, the energy storage device may be charged by a charging mode with the highest charging power in the photovoltaic charging device, the wind power charging device, the reverse charging device and the generator, and when the speed is lower than the preset speed, the energy storage device may be charged by a charging mode with the highest charging power in the photovoltaic charging device, the generator and the wind power charging device.

The preset speed in this scheme is, for example, 10Km/h, 12Km/h, 15Km/h, etc., and is not limited thereto.

After the scheme is applied, the energy management system can determine which energy supply device is started to charge the energy storage device according to the speed, so that the energy storage device can be charged more efficiently when the sail device is powered.

It should be noted that, in one example, in any of the foregoing embodiments in which the generator or other charging device selects a charging mode to charge the energy storage device, even though the charging power of the generator is highest among multiple charging modes, because the generator needs to consume a corresponding energy source, such as diesel oil, to generate electricity, other types of charging modes may be used to charge the energy storage device preferentially from the environmental protection perspective, and in some special cases, such as other charging modes cannot provide the required electric energy for the operation of the movable device in the water in time, other charging device faults, and the like, the generator is used to charge.

On the basis of the scheme that the state of the energy management system can comprise the sailing state of the energy management system sailing along with the movable equipment in the water, referring to fig. 7, the movable equipment in the water 11 can further comprise other power utilization devices 13, and the energy management system 10 further comprises a mains supply charging interface 104;

when the position information is on the shore and the working state is off, the energy supply device 102 or the mains supply charging interface 104 is started to supply power for the rest of the power utilization devices 13;

when the position information is on the shore and the working state is on, the energy storage device 101 is started to supply power for the rest of the power utilization devices 13;

when the location information is offshore, the energy storage device 101 is started to supply power for the rest of the power utilization devices 111;

the energy management system 10 further includes an emergency battery 105, which enables the emergency battery 105 to power the remaining powered devices 13 when at least two of the energy storage devices 101 fail;

when the counter-charging means 604 is enabled, the counter-charging means 604 is controlled to supply the remaining power consuming means 13.

After the scheme is applied, when the navigation states of the energy management system are different, the energy supply device or the energy storage device corresponding to the navigation states is started to provide guarantee for the electric energy sources of the other electric devices 13, and the other electric devices 13 can be understood to be household appliances (such as refrigerators, illuminating lamps, sound equipment and the like) on movable equipment in a water area, communication equipment (such as very high frequency communication navigation equipment, automatic ship identification systems and the like) and the like. Through the scheme, when the mains supply charging interface and the energy supply device are available, the mains supply charging interface and the energy supply device are preferentially used, so that the energy consumption of the energy storage device can be reduced, and the energy storage device is in a state with sufficient electric energy when the power device needs to supply power.

On the basis of any one of the above embodiments, the control device may be further configured to notify the energy supply device to charge at least two energy storage devices with the same electric quantity based on the electric quantity of the at least two energy storage devices;

or the control device is used for informing the energy supply device to charge the at least two energy storage devices based on the electric quantity of the at least two energy storage devices, wherein the lower the electric quantity is, the earlier the energy storage device is charged;

or the control device is used for informing the energy storage device to charge the energy storage device which stops supplying power based on the power supply state of at least two energy storage devices so as to enable the rest energy storage devices to supply power to the power device.

One of the three control schemes can be selected or can be applied simultaneously. In an embodiment, the energy storage device is two sets of storage batteries, and the comparison may be performed according to the electric quantities fed back by the two sets of storage batteries respectively (for example, the control device obtains and compares the voltage values). When the electric quantity is consistent, the control device can simultaneously switch on two groups of storage batteries to be charged simultaneously. When the electric quantity is inconsistent, the controller can firstly inform the energy supply device to charge a group of storage batteries with low electric quantity, and starts the storage batteries with high electric quantity to supply power to the power device or other electric equipment. It can be seen that the scheme of controlling the energy storage device to charge the energy storage device and controlling the energy storage device to supply power to the power device according to the state of the energy storage device can be integrated in the embodiment.

In another embodiment, when the electric quantity is inconsistent, the controller may first notify the energy supply device to charge a group of storage batteries with low electric quantity, and enable the storage batteries with high electric quantity to supply power to the power device or other electric equipment, and when the electric quantity of the two groups of storage batteries is consistent along with the increase of the electric quantity of the group of storage batteries with low electric quantity, charge the two groups of storage batteries simultaneously, and enable the two groups of storage batteries to supply power to the power device or other electric equipment simultaneously.

According to the scheme, the energy management system can control the energy storage device and the working state of the energy supply device according to the state of the energy storage device on the basis of the scheme, so that the charging and power supply processes of the energy storage device are balanced, and the charging efficiency and the service life of the energy storage device are improved.

Accordingly, referring to fig. 8, a propulsion system 80 is also provided, the propulsion system 80 including a power plant 12 and the energy management system 10 described in any of the previous embodiments.

Correspondingly, referring to fig. 9, the application further provides a water area movable device 90, where the water area movable device 90 includes a movable body 901 and the propulsion system 80, and the propulsion system 80 is disposed on the movable body 901.

While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any utility model or of what may be claimed, but rather as descriptions of features of specific embodiments of particular utility models. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. On the other hand, the various features described in the individual embodiments may also be implemented separately in the various embodiments or in any suitable subcombination. Furthermore, although features may be acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.

Claims (14)

1. An energy management system for installation in a water area mobile device having a power plant, the energy management system comprising:

at least two energy storage devices for powering the power devices;

at least two energy supply devices for charging the energy storage devices;

the control device is connected between the energy storage device and the energy supply device, at least part of electric energy of the energy storage device is transmitted to the power device through the control device, at least part of electric energy of the energy supply device is transmitted to the energy storage device through the control device, and the control device is used for:

based on the electric quantity of the at least two energy storage devices, notifying the energy supply device to charge the at least two energy storage devices with the same electric quantity at the same time;

or, based on the electric quantity of the at least two energy storage devices, notifying the energy supply device to charge the at least two energy storage devices, wherein the energy storage devices with lower electric quantity are charged first;

or, based on the power supply states of the at least two energy storage devices, notifying the energy supply device to charge the energy storage devices with power supply suspended so as to enable the rest energy storage devices to supply power to the power device.

2. The energy management system of claim 1, wherein the at least two energy providing devices comprise at least two of:

photovoltaic charging device, generator, wind power charging device, reverse charging device or bank charging interface; the shore charging interface is used for being connected with shore charging equipment and receiving electric energy from the shore charging equipment.

3. The energy management system of claim 2, wherein the power state includes whether the energy storage device is powered.

4. The energy management system according to claim 3, wherein the control device comprises a bus and at least one bus-bar switch connected to the bus, the at least two energy storage devices are connected to the bus, the plurality of power devices are connected to the bus, and the bus-bar switch is connected between the points where two adjacent power devices are connected to the bus;

when the at least two energy storage devices can supply power, the at least two energy storage devices are started, the at least one bus-tie switch is disconnected, and each energy storage device supplies power for the corresponding power device;

when the number of the energy storage devices is greater than two and at least one energy storage device is in power supply suspension, enabling the at least two energy storage devices capable of supplying power, closing a part of the bus-tie switch so that the at least two energy storage devices capable of supplying power supply all the power devices, wherein the power device corresponding to the energy storage device in power supply suspension is powered by the energy storage device which is adjacent to the energy storage device in power supply suspension and capable of supplying power;

when only one of the energy storage devices is capable of supplying power, the energy storage device is started, and the at least one bus-tie switch is closed, so that the energy storage device can supply power for all the power devices.

5. An energy management system according to claim 3, wherein the water area mobile device comprises a sail arrangement;

when the at least two energy storage devices comprise at least one energy storage device which stops supplying power, the control device is also used for informing the sail device to work so that the movable equipment in the water area can drive by taking wind as power.

6. The energy management system of claim 3 wherein the control means is further adapted to limit the power of the power plant such that the power of the power plant does not exceed the power available from the energy storage means that powers the power plant when the at least two energy storage means comprise energy storage means that partially suspend the power supply.

7. An energy management system according to claim 3, wherein the control means is further adapted to enable the energy supply means adapted to the navigational state and the energy storage means adapted to the navigational state based on the navigational state of the energy management system along with the water area mobile device.

8. The energy management system of claim 7, wherein the energy supply device comprises the photovoltaic charging device, the generator, the wind charging device, the counter-charging device, and the shore charging interface; the navigation state comprises the position information of the movable equipment in the water area and the working state of the power device;

when the position information is on the shore and the working state is off, starting the shore charging interface, the photovoltaic charging device or the generator to charge at least one energy storage device;

when the position information is on the shore and the working state is on, starting the photovoltaic charging device or the generator to charge at least one energy storage device;

when the position information is offshore and the working state is closed, starting the photovoltaic charging device or the generator to charge at least one energy storage device;

when the position information is offshore and the working state is on, starting the photovoltaic charging device, the wind power charging device or the generator to charge at least one energy storage device;

the sailing state further comprises an enabling state fed back by a sail device of the movable water area equipment, and when the position information is offshore, the working state is on, and the enabling state is on, the photovoltaic charging device, the wind power charging device, the anti-charging device or the generator is enabled to charge at least one energy storage device.

9. The energy management system according to claim 8, wherein the sailing state is determined when the control device receives the position information and the working state fed back by the power device;

or the navigation state is determined when the control device receives an instruction input by a user.

10. The energy management system of claim 7, wherein the energy supply device comprises the photovoltaic charging device, the generator, the wind charging device, and the counter charging device; the navigation state comprises the position information of the movable equipment in the water area and the working state of the power device;

when the position information is offshore and the working state is on, the photovoltaic charging device, the wind power charging device and the generator respectively feed back the charging power of the photovoltaic charging device, the wind power charging device and the generator to the control device, and the control device is further used for starting an energy supply device corresponding to the maximum charging power to charge at least one energy storage device;

the sailing state further comprises an enabling state fed back by the sail device of the movable water area equipment, when the position information is offshore, the working state is on, and the enabling state is on, the photovoltaic charging device, the wind power charging device, the anti-charging device and the generator respectively feed back self charging power to the control device, and the control device is further used for enabling an energy supply device corresponding to the maximum charging power to charge at least one energy storage device.

11. The energy management system of claim 7, wherein the energy supply device comprises the photovoltaic charging device, the generator, the wind charging device, and the counter charging device; the sailing state comprises position information of the movable equipment in the water area, the working state of the power device and the starting state fed back by the sail device of the movable equipment in the water area;

when the position information is offshore, the working state is on, and the starting state is on, the control device obtains the current navigational speed of the movable equipment in the water area, and under the condition that the current navigational speed reaches the preset speed, the anti-charging device is started to charge at least one energy storage device; starting the photovoltaic charging device, the generator or the wind power charging device to charge at least one energy storage device under the condition that the current navigational speed does not reach the preset speed; or (b)

When the position information is offshore, the working state is on, the starting state is on, the control device obtains the current navigational speed of the movable equipment in the water area, and the photovoltaic charging device, the wind power charging device, the inverse charging device or the generator is started to charge at least one energy storage device under the condition that the current navigational speed reaches the preset speed; and under the condition that the current navigational speed is smaller than the preset speed, starting the photovoltaic charging device, the generator or the wind power charging device to charge at least one energy storage device.

12. The energy management system of claim 7, wherein the water area mobile device further comprises a remaining power utility, the energy management system further comprising a utility charging interface; the navigation state comprises the position information of the movable equipment in the water area and the working state of the power device;

when the position information is on the shore and the working state is off, the energy supply device or the commercial power charging interface is started to supply power for the other power utilization devices;

when the position information is on the shore and the working state is on, starting the energy storage device to supply power for the other power utilization devices;

when the position information is offshore, enabling the energy storage device to supply power for the rest power utilization devices;

the energy management system further comprises an emergency battery, and when the at least two energy storage devices are in failure, the emergency battery is started to supply power for the other power utilization devices;

and when the anti-charging device is started, controlling the anti-charging device to supply power for the rest power utilization devices.

13. A propulsion system comprising a power plant and the energy management system of any one of claims 1-12.

14. A water mobile device comprising a mobile body and the propulsion system of claim 13, the propulsion system being disposed on the mobile body.