TWI631747B - Electric energy management system - Google Patents

Abstract

A power management system includes: a power supply module configured to provide a power supply to a charging module, the charging module being configured to be based on the power source and in response to the first and second charging from a power management module The first power detecting device is coupled to the first power storage device and the charging module, and the first power detecting module is configured to Detecting the electrical energy of the first electrical energy storage device, and generating a first detection result to the electrical energy management module according to the electrical energy. The power management module generates a first path control signal and determines an operating state of the first power storage device according to the first detection result.

Description

Power management system

The present invention relates to a management system, and more particularly to a power management system.

The conventional electric energy charging system is mainly used for charging a single type of electric energy storage device, which cannot detect a current voltage of the electric energy storage device and determine an operating state of the electrical energy storage device (for example, a state of charge, A plurality of different electrical energy charging systems are used when a plurality of electrical energy storage devices having different types are required to be charged. Therefore, for a conventional electric energy charging system, how to achieve detection, charging and discharging of a plurality of electric energy storage devices having different types is an important issue.

Accordingly, it is an object of the present invention to provide a power management system that can detect and charge a plurality of electrical energy storage devices having different types.

Therefore, the power management system of the present invention comprises a power supply module, a charging module, a first power detecting module and a power management module.

The power supply module is configured to provide a power supply to the charging module, the charging module being configured to provide a first according to the power source and the first and second charging control signals from the power management module Charging power with the second target.

The first power detecting module is coupled to a first electrical energy storage device and the charging module, and the first electrical energy detecting module is configured to detect the electrical energy of the first electrical energy storage device and to respond to the electrical energy A first detection result is generated to the power management module.

The power management module generates a first path control signal and determines an operating state of the first power storage device according to the first detection result.

11‧‧‧First electrical energy storage device

12‧‧‧Second electrical energy storage device

2‧‧‧Input module

3‧‧‧Power supply module

31‧‧‧Renewable energy supplier

32‧‧‧Power supply

4‧‧‧Charging module

41‧‧‧First charging circuit

42‧‧‧Second charging circuit

401‧‧‧ first output

402‧‧‧second output

5‧‧‧First energy detection module

51‧‧‧First connection interface

52‧‧‧First detection unit

53‧‧‧First path switching unit

6‧‧‧Second energy detection module

61‧‧‧Second connection interface

62‧‧‧Second detection unit

63‧‧‧Second path switching unit

7‧‧‧Power Management Module

8‧‧‧Energy recovery module

801‧‧‧ input

9‧‧‧Display module

C11‧‧‧First charge control signal

C12‧‧‧Second charge control signal

C21‧‧‧First path control signal

C22‧‧‧Second path control signal

D1‧‧‧ first detection result

D2‧‧‧ second detection result

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: Figure 1 is a block diagram illustrating a first embodiment of the power management system of the present invention; and Figure 2 is a block BRIEF DESCRIPTION OF THE DRAWINGS A second embodiment of a power management system of the present invention is illustrated.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

<First Embodiment>

Referring to FIG. 1, a first embodiment of the power management system of the present invention is adapted to charge and discharge at least one of the first and second electrical energy storage devices 11, 12, wherein the first and second electrical energy storage devices 11, 12 different types of electrical energy storage Device. For example, the first electrical energy storage device 11 is used by a smart phone, and the second electrical energy storage device 12 is used by a household appliance device. In this embodiment, the power management system includes an input module 2, a power supply module 3, a charging module 4, first and second power detecting modules 5, 6, and a power management module 7. An energy recovery module 8 and a display module 9.

The input module 2 is operable to generate an input signal.

The power supply module 3 is electrically connected to the input module 2 to receive the input signal, and includes a regenerative energy supply 31 and a power supply 32. The power supply module 3 determines that one of the renewable energy supplier 31 and the power supply 32 supplies a power source according to the input signal.

The charging module 4 is electrically connected to the power supply module 3 to receive the power, and has a first output end 401 and a second output end 402. The charging module 4 is configured to output a first target charging power source at the first output end 401 according to the power source and in response to a first charging control signal C11, and in response to a second charging control signal C12 The second output 402 outputs a second target charging power source. In detail, in this embodiment, the charging module 4 includes a first charging circuit 41 and a second charging circuit 42. The first charging circuit 41 has the first output terminal 401, and generates the first target charging power source according to the power source and the first charging control signal C11, and outputs the first target charging power source via the first output terminal 401. The second charging circuit 42 has the second output terminal 402, and generates the current according to the power source and the second charging control signal C12. The second target charging power source and outputting the second target charging power source via the second output terminal 402. It should be noted that, in this embodiment, the first and second target charging power sources are each one of a certain current power source and a certain voltage power source.

The first power detecting module 5 includes a first connecting interface 51 , a first detecting unit 52 and a first path switching unit 53 .

The first connection interface 51 allows electrical connection to the first electrical energy storage device 11 in a detachable manner. The first detecting unit 52 is electrically connected to the first connecting interface 51, and when the first electrical energy storage device 11 is electrically connected to the first connecting interface 51, the electrical energy of the first electrical energy storage device 11 is detected and The first detection result D1 includes a current voltage of the first electrical energy storage device 11 and its current estimated life (eg, according to the first electrical energy storage device 11 The current voltage estimates the time at which the first electrical energy storage device 11 can be charged by the smart phone. The first path switching unit 53 is electrically connected to the first and second output ends 401 and 402 of the charging module 4 and the first connection interface 51, and performs a path switching operation according to a first path control signal C21.

The second power detecting module 6 includes a second connecting interface 61, a second detecting unit 62 and a second path switching unit 63.

The second connection interface 61 allows electrical connection to the second electrical energy storage device 12 in a detachable manner. The second detecting unit 62 is electrically connected to the second connecting interface 61, and when the second electrical energy storage device 12 is electrically connected to the second connecting interface 61, the detecting Detecting the electrical energy of the second electrical energy storage device 12, and generating a second detection result D2 according to the electrical energy, the second detection result D2 including a current voltage of the second electrical energy storage device 12 and its current estimated The lifetime (e.g., the time at which the second electrical energy storage device 12 is available for charging by the household appliance device based on the current voltage of the second electrical energy storage device 12). The second path switching unit 63 is electrically connected to the first and second output ends 401, 402, the second connection interface 61, and the first path switching unit 53 of the charging module 4, and is controlled according to a second path. Signal C22 is used to perform the path switching operation.

The power management module 7 is electrically connected to the first and second detecting units 52 and 62, the first and second path switching units 53 and 63, and the charging module 4, and receives the first and second receiving units respectively. And the first and second detection results D1, D2 of the second detecting unit 52, 62. The power management module 7 generates the first path control signal C21 according to the current voltage of the first power storage device 11 of the first detection result D1, and determines an operating state of the first power storage device 11, and One of the first and second charging control signals C11, C12 is generated according to the current voltage of the first electrical energy storage device 11 of the first detection result D1. The power management module 7 generates the second path control signal C22 according to the current voltage of the second power storage device 12 of the second detection result D2, and determines an operating state of the second power storage device 12, and One of the first and second charging control signals C11, C12 is generated according to the current voltage of the second electrical energy storage device 12 of the second detection result D2. In this embodiment, each of the first and second electrical energy storage devices 11, 12 The operational state of one is one of a state of charge, a state of discharge, and a state of standby.

The energy recovery module 8 has an input end 801 electrically connected to the first path switching unit 53. The input end 801 serves as a power receiving end. When any one of the first and second electrical energy storage devices 11 and 12 is discharged, the energy recovery module 8 receives the first and second electrical energy storage devices 11 and 12 through the input terminal 801. The discharge of one of the corresponding ones.

The display module 9 is electrically connected and controlled by the power management module 7. In this embodiment, the power management module 7 includes an electrical energy including the first and second detection results D1, D2, and the operational states of the first and second electrical energy storage devices 11, 12. The management information is output to the display module 9, and the display module 9 displays the power management information.

The operating state of the first electrical energy storage device 11 (ie, the charging state, the standby state, and the discharging state) is exemplified in the following, and in the charging state, the power management module 7 controls the first charging circuit. The first electric energy storage device 11 is charged as an example, but is not limited thereto. In other embodiments, the power management module 7 can also control the second charging circuit 42 to charge the first electrical energy storage device 11 according to the following operational logic.

The state of charge: The power management module 7 determines, according to the first detection result D1, that the current voltage of the first electrical energy storage device 11 is less than a predetermined first threshold voltage (the predetermined first threshold voltage is less than a predetermined first full voltage) The operating state of the first electrical energy storage device 11 is determined by the power management module 7 as the charging state, and the first path switching unit 53 first responds to the first path control signal from the power management module 7. C21, a first charging path is established by itself, the first charging path is formed by the first connection interface 51, the first path switching unit 53 and the first output end 401 (ie, the first and second The power management module 7 generates the first charging control signal according to the current voltage of the first electrical energy storage device 11 of the first detection result D1. C11 (ie, one of the first and second charging control signals C11, C12) such that the first target charging power source (ie, a corresponding one of the first and second target charging power sources) passes through the First charging path to the first An electrical energy storage device 11 is charged, and the first target charging power source is the constant current power source (ie, the first charging circuit 41 charges the first electrical energy storage device 11 in a certain current mode).

In addition, when the power management module 7 determines that the current voltage of the first electrical energy storage device 11 is between the predetermined first full voltage and the predetermined first threshold voltage, the operation of the first electrical energy storage device 11 The state is the state of charge, and the first target charging power source charges the first electrical energy storage device 11 via the first charging path. And the first target charging power source is the constant voltage power source (ie, the first charging circuit 41 charges the first electrical energy storage device 11 in a certain voltage manner).

The standby state: when the power management module 7 determines that the current voltage of the first electrical energy storage device 11 reaches the predetermined first full voltage, the operating state of the first electrical energy storage device 11 is used by the power management module 7 determining the standby state (for example, the first electrical energy storage device 11 is available for use by the smart phone), and the first path switching unit 53 disconnects the first charging path according to the first path control signal C21 (ie, The first path switching unit 53 switches to a bypass mode.

The discharge state: when the power management module 7 determines that the current voltage of the first electrical energy storage device 11 is greater than a predetermined first discharge voltage (the predetermined first discharge voltage is greater than the predetermined first full voltage), the first The operating state of an electrical energy storage device 11 is determined by the power management module 7 as the discharge state, and the first electrical energy storage device 11 is discharged through a first discharge path, the first electrical discharge path is connected by the first connection interface. The first path switching unit 53 and the input end 801 (ie, the power receiving end) are jointly defined by the first path control signal C21, so that the energy recovery module 8 can pass the input terminal 801. A discharge from the first electrical energy storage device 11 is received. In other embodiments, the first discharge path may be jointly defined by the first connection interface 51, the first and second path switching units 53, 63, and the second connection interface 61. When the second electrical energy storage device 12 is electrically connected to the second connection interface 61, the second electrical energy storage device 12 can receive the discharge from the first electrical energy storage device 11.

The operating state of the second electrical energy storage device 12 (ie, the charging state, the standby state, and the discharging state) is exemplified below, and in the charging state, the power management module 7 controls the second charging circuit. The charging of the second electric energy storage device 12 is exemplified, but is not limited thereto. In other embodiments, the power management module 7 can also control the first charging circuit 41 to charge the second electrical energy storage device 12 according to the following operational logic.

The charging state: when the power management module 7 determines, according to the second detection result D2, the current voltage of the second electrical energy storage device 12 is less than a predetermined second threshold voltage (the predetermined second threshold voltage is less than a predetermined number) When the voltage is full, the operating state of the second electrical energy storage device 12 is determined by the power management module 7 as the charging state, and the second path switching unit 63 first responds to the first from the power management module 7. The second path control signal C22 establishes a second charging path by itself, the second charging path is formed by the second connection interface 61, the second path switching unit 63 and the second output end 402 (ie, the first The first and second output terminals 401, 402 are jointly defined, and then the power management module 7 generates the first voltage according to the current voltage of the second electrical energy storage device 12 of the second detection result D2. Two charging control signals C12 (ie, one of the first and second charging control signals C11, C12) such that the second target The charging power source (ie, a corresponding one of the first and second target charging power sources) charges the second electrical energy storage device 12 via the second charging path, and the second target charging power source is the constant current power source.

In addition, when the power management module 7 determines that the current voltage of the second power storage device 12 is between the predetermined second full voltage and the predetermined second threshold voltage, the operation of the second electrical energy storage device 12 The state is the state of charge, the second target charging power source charges the second electrical energy storage device 12 via the second charging path, and the second target charging power source is the constant voltage power source.

The standby state: when the power management module 7 determines that the current voltage of the second electrical energy storage device 12 reaches the predetermined second full voltage, the operating state of the second electrical energy storage device 12 is used by the power management module 7 determining the standby state (for example, the second electrical energy storage device 12 is available for use by the household appliance device), and the second path switching unit 63 disconnects the second charging path according to the second path control signal C22 (ie, The second path switching unit 63 switches to a bypass mode).

The discharge state: when the power management module 7 determines that the current voltage of the second electrical energy storage device 12 is greater than a predetermined second discharge voltage (the predetermined second discharge voltage is greater than the predetermined second full voltage), the first The operating state of the two electrical energy storage devices 12 is determined by the power management module 7 as the discharging state, and the second electrical energy storage device 12 is a second discharge path is discharged from the second connection interface 61, the second and first path switching units 63 respectively corresponding to the second and first path control signals C22, C21, 53 and the input terminal 801 are jointly defined such that the energy recovery module 8 can receive the discharge from the second electrical energy storage device 12 via the input terminal 801. In other embodiments, the second discharge path may be jointly defined by the second connection interface 61, the second and first path switching units 63, 53 and the first connection interface 51, and thus the first electrical energy When the storage device 11 is electrically connected to the first connection interface 51, the first electrical energy storage device 11 can receive the discharge from the second electrical energy storage device 12.

It should be noted that when only the first electrical energy storage device 11 (or the second electrical energy storage device 12) needs to be charged by the constant current and the constant voltage mode, the power management module 7 can control the first And one of the second charging circuits 41, 42 charges the first electrical energy storage device 11 in the constant current mode, and controls the other of the first and second charging circuits 41, 42 to the first The electrical energy storage device 11 is charged in the constant voltage mode. In addition, the power management module 7 can also control the first charging circuit 41 (or the second charging circuit 42) to first charge the first electrical energy storage device 11 in the constant current mode, and then control the first charging circuit. The first electrical energy storage device 11 is charged in the constant voltage mode. The first and second electrical storage devices 11 and 12 are electrically connected to the first and second connection interfaces 51 and 61, respectively, and the power management module 7 is configured according to the first and second detection results D1. D2 determines the first and second connection interfaces When the current voltages of the 51 and 61 are less than the predetermined first threshold voltage and the predetermined second threshold voltage, the power management module 7 can control the first and second charging circuits 41 and 42 respectively. The first and second electrical energy storage devices 11, 12 are charged in the constant current mode.

In addition, the power management system can be implemented as a rack of management systems. In this embodiment, only the power management system charges and discharges the first and second electrical energy storage devices 11 and 12 as an example, but is not limited thereto. In other embodiments, the power management system of the present invention may be configured with more power detection modules respectively corresponding to different types of electrical energy storage devices according to the foregoing connection manner and operation logic, and the different types of electrical energy storage devices. Charge and discharge.

Referring to FIG. 2, the second embodiment of the power management system of the present invention is similar to the first embodiment, except that in this embodiment, the input end 801 of the energy recovery module 8 is electrically connected to the second Path switching unit 63. Therefore, the first discharge path is defined by the first connection interface 51, the first and second path switching units 53, 63 and the input end 801, and the second discharge path is determined by the second The connection interface 61, the second path switching unit 63, and the input terminal 801 are collectively defined.

It should be noted that the connection manner and operation logic of the second embodiment are similar to those of the first embodiment, and details are not described herein again.

In summary, the first and second detection units D1 and D2 are respectively generated by the first and second detection units 52 and 62, so that the power management module 7 can be based on the first The second detection results D1, D2 respectively generate the first and second path control signals C21, C22, and determine the respective operating states of the first and second electrical energy storage devices 11, 12, respectively. Therefore, the power management system of the present invention can detect and charge a plurality of different energy storage devices having different types, and when the first and second electrical energy storage devices 11 and 12 are in comparison with the conventional electrical energy charging system. When the operating state of any one of the operating states is the discharging state, it can be discharged to the energy recovery module 8 by one of the first and second discharging paths, so that the object of the present invention can be achieved. .

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

Claims (13)

A power management system includes: a power supply module configured to provide a power supply to a charging module, the charging module being constructed to be based on the power source and in response to the first and second from a power management module The charging control signal is configured to provide the first and second target charging power sources respectively; and a first power detecting module is coupled to the first power storage device and the charging module, wherein the first power detecting module is constructed Detecting the power of the first electrical energy storage device, and generating a first detection result to the power management module according to the electrical energy; wherein the power management module generates a first one according to the first detection result The path control signal determines an operational state of the first electrical energy storage device. The power management system of claim 1, wherein the first power detecting module comprises: a first connection interface electrically connected to the first electrical energy storage device in a detachable manner; The measuring unit electrically connects the first connection interface with the power management module, and when the first electrical energy storage device is electrically connected to the first connection interface, detecting the electrical energy of the first electrical energy storage device to generate the first detection And measuring the result, and outputting the first detection result to the power management module, where the first detection result includes a current voltage of the first electrical energy storage device, wherein the power management module determines the current voltage according to the current voltage The operational state of the first electrical energy storage device; and A first path switching unit electrically connects the charging module and the first connection interface, and performs a path switching operation according to the first path control signal. The power management system of claim 2, wherein the first path switching unit is adapted to be from the power management module when the power management module determines that the operating state of the first power storage device is a charging state The first path control signal is configured to establish a first charging path, where the first charging path includes the first connection interface, the first path switching unit, and the charging module are jointly defined, and the power management module responds The current voltage of the first electrical energy storage device of the first detection result to generate one of the first and second charging control signals, such that one of the first and second target charging power sources Corresponding to charging the first electrical energy storage device via the first charging path; wherein, when the power management module determines that the operating state of the first electrical energy storage device is a standby state, the first path switching unit responds to The first path control signal from the power management module disconnects the first charging path; and wherein the power management module determines the first power storage device When the operating state is a discharge state, the first electrical energy storage device is discharged through a first discharge path, the first discharge path including the first connection interface, the first path switching unit, and a power receiving end are jointly defined . The power management system of claim 3, further comprising: a second power detection module, including a second connection interface electrically connected to a second electrical energy storage device in a detachable manner, a second detection unit electrically connecting the second connection interface and the power management module, and the second electrical energy When the storage device is electrically connected to the second connection interface, detecting the power of the second electrical energy storage device to generate a second detection result, and outputting the second detection result to the power management module, the second detection The measurement result includes a current voltage of the second electrical energy storage device, and a second path switching unit electrically connecting the charging module, the second connection interface, and the first path switching unit of the first power detecting module And performing a path switching operation according to a second path control signal; and an energy recovery module having an input electrically connected to one of the first and second path switching units, the input being the The power management module further generates the second path control signal according to the second detection result and determines an operating state of the second power storage device, the operation of the second power storage device State is the state of charge, the discharge state and the standby state is one of those. The power management system of claim 4, wherein when the power management module determines that the operating state of the second electrical energy storage device is the charging state, the second path switching unit is adapted to be from the power management module The second path control signal establishes a second charging path by itself, the second charging path is jointly defined by the second connection interface, the second path switching unit and the charging module, and the electric energy is Management module according to the The current voltage of the second electrical energy storage device of the second detection result, one of the first and second charging control signals being generated, such that a corresponding one of the first and second target charging power sources is via The second charging path charges the second electrical energy storage device; wherein when the power management module determines that the operating state of the second electrical energy storage device is the standby state, the second path switching unit responds to the second The path control signal is disconnected from the second charging path; and when the power management module determines that the operating state of the second electrical energy storage device is the discharging state, the second electrical energy storage device is via a second discharging path Discharging to the energy recovery module, the second discharge path is defined by at least the second connection interface, the second path switching unit, and the input end of the energy recovery module. The power management system of claim 5, wherein: when the input end of the energy recovery module is electrically connected to the first path switching unit, the first discharging path is the first connection interface, the first path The switching unit and the input end of the energy recovery module are jointly defined, and the second discharge path is the second connection interface, the second and first path switching units, and the input of the energy recovery module The first discharge path is defined by the first connection interface, the first and second path switching units, when the input end of the energy recovery module is electrically connected to the second path switching unit And the input end of the energy recovery module is jointly defined, and the second discharge path is formed by the second connection interface, The second path switching unit and the input end of the energy recovery module are jointly defined. The power management system of claim 4, wherein: when the power management module determines that the current voltage of the first power storage device is greater than a predetermined first discharge voltage according to the first detection result, the The operation of the first electrical energy storage device when the operating state of the electrical energy storage device is determined by the electrical energy management module to be the discharge state and the current voltage of the first electrical energy storage device is determined to reach a predetermined first full voltage. When the state is determined by the power management module as the standby state, and the current voltage of the first electrical energy storage device is determined to be less than the predetermined first full voltage, the operating state of the first electrical energy storage device is controlled by the power management mode. The group determines the state of charge, the predetermined first discharge voltage is greater than the predetermined first full voltage; and when the power management module determines, according to the second detection result, the current voltage of the second power storage device is greater than one When the second discharge voltage is predetermined, the operating state of the second electrical energy storage device is determined by the power management module as the discharge state, and the When the current voltage of the second electrical energy storage device reaches a predetermined second full voltage, the operating state of the second electrical energy storage device is determined by the power management module as the standby state, and the second electrical energy storage device is determined When the current voltage is less than the predetermined second full voltage, the operating state of the second electrical energy storage device is determined by the power management module to be the charging state, and the predetermined second discharging voltage is greater than the predetermined second full voltage. The power management system of claim 7, wherein: Each of the first and second target charging power sources is one of a certain current power source and a certain voltage power source; and the power management module determines the first power storage device according to the first detection result When the current voltage is less than a predetermined first threshold voltage less than the predetermined first full voltage, the corresponding one of the first and second target charging power sources for charging the first electrical energy storage device is the constant current And determining, by the power source, the first and the first charging of the first electrical energy storage device when the current voltage of the first electrical energy storage device is between the predetermined first full voltage and the predetermined first threshold voltage The corresponding one of the two target charging power sources is the constant voltage power source; and when the power management module determines, according to the second detection result, the current voltage of the second power storage device is less than a predetermined second full voltage When the second threshold voltage is predetermined, the corresponding one of the first and second target charging power sources for charging the second electrical energy storage device is the constant current power source, and it is determined The current voltage of the second electrical energy storage device is between the predetermined second full voltage and the predetermined second threshold voltage, and the first and second target charging power sources for charging the second electrical energy storage device The corresponding one is the constant voltage power supply. The power management system of claim 4, further comprising a display module electrically connected to and controlled by the power management module, wherein the power management module includes one of the first and second detection results And the power management information of the operating states of the first and second electrical energy storage devices are output to the display module, and the display module displays the power management information. The power management system of claim 4, wherein the first detection result further includes a life estimated by the first electrical energy storage device, and the second detection result further includes that the second electrical energy storage device is currently Estimated life. The power management system of claim 1, wherein the charging module comprises: a first charging circuit having a first output, and configured to pass the power according to the power supply and the first charging control signal The first output terminal outputs the first target charging power source; and a second charging circuit has a second output terminal, and is configured to output the current via the second output terminal according to the power source and the second charging control signal The second target charging power source. The power management system of claim 1, wherein the power supply module comprises a regenerative energy supply and a power supply, and the power supply module determines the regenerative energy supply and the power supply according to an input signal. One of the suppliers provides the power. The power management system of claim 12, further comprising an input module electrically connected to the power supply module, the input module operable to generate the input signal, and output the input signal to the power supply module .