TWI558052B - Regenerative energy control methods and systems - Google Patents

Description

Renewable energy control method and system

The invention relates to an energy control method and system, in particular to a renewable energy control method and system.

Faced with the increasing depletion of fossil fuels, the development of renewable energy has become the trend and trend of the world. Renewable energy is defined as the energy generated by direct use or treatment of solar energy, biomass energy, geothermal energy, ocean energy, wind power, water power, etc., and is recognized as a sustainable energy source, among which hydropower, wind power, solar energy, etc. Has development potential.

Existing wind turbines are devices that recycle wind power and convert them into electricity, while using a single battery to conserve electricity for power supply to the load. However, due to the simultaneous charging and discharging of the battery, it is easy to cause the power storage effect to be ineffective, and the battery life is reduced, so the overall energy management practice still needs to be improved.

Accordingly, it is an object of the present invention to provide a method of controlling a renewable energy source.

Thus, the regenerative energy control method of the present invention is implemented by a regenerative energy control system including a first power storage system a bottle, a second storage battery, and a control unit electrically connected to the first and second storage batteries, the regenerative energy control system electrically connecting a load and a regenerative energy generator to receive a power generation from the regenerative energy generator The electric power, and the regenerative energy control method comprises a step (A), a step (B), a step (C), a step (D), and a step (E).

The step (A) is that the control unit compares whether the voltage of the first battery is greater than the voltage of the second battery.

The step (B) is that if the result of the comparison in the step (A) is YES, the control unit compares whether the voltage of the first battery is greater than a predetermined voltage value.

The step (C) is that if the result of the comparison in the step (B) is YES, the control unit supplies the electric power of the first battery to the load.

The step (D) is that the control unit determines whether the regenerative energy generator is turned on.

In the step (E), if the result of the determination in the step (D) is YES, the control unit supplies the generated electric power to the second electric storage battery.

Further, another object of the present invention is to provide a regenerative energy control system.

Therefore, the regenerative energy control system of the present invention electrically connects a regenerative energy generator to receive a generated electric power, and includes a first storage battery, a second storage battery, a relay module, and a control unit.

The relay module is adapted to electrically connect a load, and the relay module is electrically connected to the first and second storage batteries and is controlled to supply one of the electric power of the first and second storage batteries to the load.

The control unit compares whether the voltage of the first battery is greater than the voltage of the second battery. If the result of the comparison is yes, it is determined whether the voltage of the first battery is greater than a predetermined voltage value, and if the comparison result is If yes, controlling the relay module to supply the power of the first battery to the load, and determining whether the regenerative energy generator is turned on, and if it is determined to be on, controlling the relay module to supply the generated power to the The second battery.

The utility model has the advantages of: saving the generated electricity from the renewable energy generator by using the double battery, and controlling one of the power supply to the load, and the other is continuously charged by the generated power to improve the overall energy utilization efficiency and the service life of the battery. .

1‧‧‧ battery group

11‧‧‧First battery

12‧‧‧Second storage battery

2‧‧‧Relay module

3‧‧‧Control unit

31‧‧‧Power Tracking Module

32‧‧‧ Analog Digital Converter Module

33‧‧‧Programmable logic control module

100‧‧‧Renewable energy generator

200‧‧‧mains power supply

300‧‧‧load

A~Q’‧‧‧ steps

Other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is a system block diagram illustrating an embodiment of the regenerative energy control system of the present invention; FIG. 2 is a flow chart An embodiment of the method for managing renewable energy of the present invention; FIG. 3 is a flowchart, and FIG. 2 is a third mode of the embodiment; and FIG. 4 is a flowchart, and FIG. A variant.

Referring to FIG. 1, the regenerative energy control system of the present invention electrically connects a regenerative energy generator 100 to receive a generated electric power and includes a power storage device. Bottle set 1, a relay module 2, and a control unit 3. In this example, the renewable energy generator 100 is a wind power generator.

The battery pack 1 includes a first battery 11 and a second battery 12 .

The relay module 2 is adapted to electrically connect a utility power supply 200 and a load 300, and the relay module 2 is electrically connected to the battery storage group 1 and is controlled to control the utility power, the power of the first storage battery 11, One of the electric power of the second battery 12 is supplied to the load, and is controlled to supply the mains power to the battery pack 1 to charge the first battery 11 and the second battery 12.

The control unit 3 includes a power tracking module 31, an analog digital conversion module 32, and a programmable logic controller (PLC) 33.

The power tracking module 31 is electrically connected to the regenerative energy generator 100 to receive the generated power, and is electrically connected to the battery pack 1 to supply the generated power to the battery pack 1 through the switching of the relay module 2 Charge one of the two batteries. In this embodiment, the power tracking module 31 is driven by receiving power supply of one of the first battery 11 and the second battery 12, and utilizes maximum power point tracking (Maximum Power Point Tracking, MPPT) functions to detect the generated power to capture a generated voltage value.

The analog digital conversion module 32 is electrically connected to the first battery 11 and the second battery 12 to receive the voltage from the first battery 11 and the voltage of the second battery, and respectively convert the first battery 11 electric The voltage applied to the second battery 12 becomes a first digit value and a second digit value.

The programmable logic control module 33 is electrically connected to the power tracking module 31 and the analog digital conversion module 32, and receives the generated voltage value from the power tracking module 31 at intervals of a predetermined time, and from the analogy. The first digit value and the second digit value of the digital conversion module 32 are used to control the power supply of the relay module 2 according to comparison and judgment. In this embodiment, the programmable logic control module 33 and the power tracking module 31 transmit data once every one minute through the RS-232 interface.

Referring to Figures 2 and 3, an embodiment of the regenerative energy control method of the present invention is implemented in the regenerative energy control system shown in Figure 1. The steps A to Q of the method are described in detail below, wherein the regenerative energy control method has a first mode in which the first battery 11 is powered and the second battery 12 is charged, and the first battery 11 is A second mode of supplying power and discharging the second battery 12, and a third mode of being powered by the mains power and both the first battery 11 and the second battery 12 are charged. In detail, the step B to the step G are the first mode, the step H to the step M are the second mode, and the step N to the step Q are the third mode.

First, in step A, the programmable logic control module 33 compares whether the voltage of the first battery 11 is greater than the voltage of the second battery 12 . In more detail, the programmable logic control module 33 compares whether the first digit value from the analog digital conversion module 32 is greater than the second digit value.

In step B, if the result of the comparison in step A is YES, then The programmable logic control module 33 operates in the first mode and compares whether the first digit value is greater than a predetermined voltage value. If yes, proceed to step C; if not, proceed to step N of the third mode. In this embodiment, the preset voltage value is 12.2 volts.

In step C, the programmable logic control module 33 controls the relay module 2 to supply the power of the first battery 11 to the load 300.

In step D, the programmable logic control module 33 determines whether the regenerative energy generator 100 is turned on (operating) to determine whether the second battery 12 can be charged by the generated power. In detail, the programmable logic control module 33 determines whether the generated voltage value from the power tracking module 31 is greater than a predetermined value, and if so, determines to be on, and vice versa. In the present embodiment, the predetermined value is 3 volts.

In step E, if the result of the determination in step D is YES, the programmable logic control module 33 switches the power generated by the power tracking module 31 by controlling the relay module 2, and supplies the power to the second The battery 12 is charged to charge the second battery 12 .

In step F, if the result of the determination in step D is no, the programmable logic control module 33 controls the relay module 2 to supply the utility power to the second battery 12 to the second battery 12 Charging.

In step G, the programmable logic control module 33 continues to compare whether the first digit value is greater than the preset voltage value to determine a voltage drop caused by the first battery 11 to supply power to the load 300, and is not suitable for continuing to supply power. . If the result of the comparison is yes, repeat step C, that is, the process The logic control module 33 continuously controls the relay module 2 to supply the power of the first battery 11 to the load 300. If not, proceed to step H of the second mode.

In step H, the programmable logic control module 33 operates in the second mode and compares whether the second digit value is greater than the preset voltage value. If yes, proceed to step I; if not, proceed to step N of the third mode.

In step I, if the result of the step H comparison is yes, the programmable logic control module 33 controls the relay module 2 to supply the power of the second battery 12 to the load 300.

In step J, the programmable logic control module 33 determines whether the regenerative energy generator 100 is turned on.

In step K, if the result of the determination in step J is YES, the programmable logic control module 33 controls the relay module 2 to supply the generated power to the first battery 11 to the first battery 11 Charging.

In step L, if the result of the determination in step J is no, the programmable logic control module 33 controls the relay module 2 to supply the commercial power to the first battery 11 to the first battery 11 Charging.

In step M, the programmable logic control module 33 continues to compare whether the second digit value is greater than the preset voltage value to determine whether the second battery 12 is suitable for continuing to supply power to the load 300. If the result of the comparison is yes, step I is repeated, that is, the programmable logic control module 33 continuously controls the relay module 2 to supply the power of the second battery 12 to the load 300. If not, return to step B of the first mode.

In step N, the programmable logic control module 33 operates in the third mode, that is, the first digit value and the second digit value are both lower than the preset voltage value. At this time, the programmable logic The control module 33 controls the relay module 2 to supply the commercial power to the load 300 and the first battery 11 to supply power to the load 300 from the commercial power, and to charge the first battery 11 .

In step O, the programmable logic control module 33 determines whether the renewable energy generator 100 is turned on. If yes, proceed to step P; if not, proceed directly to step Q.

In step P, if the programmable logic control module 33 determines that the regenerative energy generator 100 is turned on, the relay module 2 is controlled to supply the generated power to the second battery 12 to store the second power storage. Bottle 12 is charged.

In step Q, the programmable logic control module 33 determines whether the first digit value is greater than a predetermined charging value, and if not, returns to step N. If so, step C is repeated, that is, the load 300 is powered by the first battery 11 . In this example, the predetermined charge value is 13.5 volts.

It should be noted that, in step N, the programmable logic control module 33 can also control the mains power to charge the second battery 12, and in step P, the generated power can also be controlled. The first battery 11 is charged, and is not limited to that described in the embodiment.

Referring to Figure 4, a variation of an embodiment of the regenerative energy control method of the present invention differs in step Q'.

In step Q', the programmable logic control module 33 determines Whether the charging time of the first battery 11 reaches a predetermined time, and if not, returns to step N. If so, step C is repeated, that is, the load 300 is powered by the first battery 11 . In this example, the predetermined time is 6 hours of charging.

In summary, the present invention utilizes a dual battery to save power generated by the regenerative energy generator 100, and operates the programmable logic control module 33 in one of the three modes to control one of the power supplies to the load 300. The other is continuously charged by the utility power or the generated power; in addition, the dual battery can be charged and used, and the utility power supply 200 is used to supply power to the load 300, thereby improving the overall energy utilization efficiency and the battery. The service life of the present invention is indeed achieved.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

1‧‧‧ battery group

11‧‧‧First battery

12‧‧‧Second storage battery

2‧‧‧Relay module

3‧‧‧Control unit

31‧‧‧Power Tracking Module

32‧‧‧ Analog Digital Converter Module

33‧‧‧Programmable logic control module

100‧‧‧Renewable energy generator

200‧‧‧mains power supply

300‧‧‧load

Claims (10)

A regenerative energy control method is implemented by a regenerative energy control system including a first storage battery, a second storage battery, and a control unit electrically connected to the first and second storage batteries, the regeneration The energy control system electrically connects a load and a regenerative energy generator to receive a generated electric power from the regenerative energy generator, the regenerative energy control method comprising: (A) the control unit comparing whether the voltage of the first storage battery is greater than the The voltage of the second battery; (B) if the result of the comparison in step (A) is YES, the control unit compares whether the voltage of the first battery is greater than a predetermined voltage value; (C) if step (B) is compared As a result, the control unit supplies power of the first battery to the load; (D) the control unit determines whether the regenerative energy generator is turned on; and (E) if the judgment result of the step (D) is And the control unit supplies the generated electric power to the second storage battery. The method for controlling a regenerative energy according to claim 1, further comprising: (G) the control unit comparing whether the voltage of the first battery is greater than the preset voltage value, and if so, repeating step (C); (H) if If the result of the comparison in step (G) is no, the control unit compares whether the voltage of the second battery is greater than the preset voltage value; (I) if the result of the comparison in step (H) is YES, the control unit makes the first The power of the two storage batteries is supplied to the load; (J) the control unit determines whether the regenerative energy generator is turned on; and (K) if the determination result of the step (J) is YES, the control unit supplies the generated electric power to the first battery. The regenerative energy control method according to claim 1, wherein the regenerative energy control system further receives a mains power, further comprising: (N) if the result of the step (B) comparison is no, the control unit supplies the mains power to The load and the first storage battery; (O) the control unit determines whether the regenerative energy generator is turned on; and (P) if the result of the step (O) is YES, the control unit controls the control unit to generate the generated electric power Supply to the second storage battery. The method for controlling a regenerative energy according to claim 3, further comprising: (Q) if the result of the step (0) is no, the control unit determines whether the voltage of the first battery is greater than a predetermined charging value, and if not, Then return to step (N), and if yes, repeat step (C). The method for controlling a regenerative energy according to claim 3, further comprising: (Q') if the result of the step (0) is no, the control unit determines whether the charging time of the first battery reaches a predetermined time, and if not Then, return to step (N), and if yes, repeat step (C). The regenerative energy control method according to claim 3, further comprising: (F) if the determination result of the step (D) is negative, the control unit supplies the mains power to the second battery. A regenerative energy control system electrically connected to a renewable energy generator Receiving a generated electric power, comprising: a first storage battery; a second storage battery; a relay module adapted to electrically connect a load, and the relay module is electrically connected to the first and second storage batteries and controlled Supplying one of the electric power of the first and second storage batteries to the load; and a control unit comparing whether the voltage of the first storage battery is greater than the voltage of the second storage battery; if the comparison result is yes, Determining whether the voltage of the first battery is greater than a predetermined voltage value, and if the result of the comparison is also yes, controlling the relay module to supply the power of the first battery to the load, and determining that the renewable energy is generated Whether the motor is turned on, and if it is determined to be on, the relay module is controlled to supply the generated power to the second battery. The regenerative energy control system of claim 7, wherein the control unit comprises: a power tracking module electrically connected to the regenerative energy generator to receive the generated electric power, and detecting the generated electric power to capture a generated voltage An analog-to-digital conversion module electrically connecting the first and second battery cells to receive voltages from the first and second battery batteries, and respectively converting the voltages of the first and second battery batteries to become a first a digital value and a second digital value, and a programmable logic control module electrically connected to the power tracking module and the analog digital conversion module to receive the power tracking mode respectively The generated voltage value of the group, and the first and second digit values from the analog digital conversion module, and the power supply of the relay module is controlled according to the comparison judgment. The regenerative energy control system of claim 8, wherein the programmable logic control module compares whether the first digit value from the analog digital conversion module is greater than the preset voltage value, and if the comparison result is yes, The programmable logic control module continuously controls the relay module to supply the power of the first battery to the load. If the comparison result is no, the programmable logic control module compares the analog digital conversion module from the analog digital conversion module. Whether the second digit value is greater than the preset voltage value, and if the comparison result is yes, the programmable logic control module controls the relay module to supply the power of the second battery to the load, and determines the renewable energy source Whether the generator is turned on, and if it is determined to be turned on, the programmable logic control module controls the relay module to supply the generated power to the first battery. The regenerative energy control system of claim 8, wherein the relay module further receives a mains power, wherein if the programmable logic control module compares the first digit value to be greater than the preset voltage value, The programmable logic control module controls the relay module to supply the utility power to the load and the first storage battery, and if the programmable logic control module determines that the regenerative energy generator is not turned on, the programmable logic control module Group control the relay module will The utility power is supplied to the second battery.