TW201119182A - Renewable energy power supply system and power supply method - Google Patents

Abstract

A renewable energy power supply system includes an energy generating module for generating a renewable energy; a first converter coupled to the energy generating module for converting the renewable energy into a first power; a storage module coupled to the first converter for storing a backup power in response to the renewable energy; a second converter coupled to the first converter and the storage module for converting the first power and/or the backup power into a second power, which is supplied to a load; a feedback controlling module coupled to the second converter and the load for detecting an inputting power transmitted to the load and comparing a detecting value with a default value. Moreover, the feedback controlling module uses to control the magnitude of the second power generated from the second converter in response to the comparing result. Furthermore, a power supply method is also disclosed.

Description

201119182 VI. Technical Description: The invention relates to a regenerative silk power supply and a power supply method thereof, and particularly relates to a regenerative energy supply system which is connected in parallel with a non-renewable energy supply system and which is powered by a load and Its power supply method. '° f prior art】 According to the definition of UNEP (CUNEP), “Renewable Energy” (ReneWableenergy) refers to the inexhaustible natural resources that Wang Li said: “, “There will be no pollutants in the pull” For example, solar energy, wind energy, geothermal energy, hydropower, tidal sand energy, biomass energy, etc., all convert energy into natural energy and can be regenerated in a short time. In addition, conventional direct current (DC) power is obtained in two ways. The first system is converted from an AC power source (mains), and the second system is converted from a DC power source by step-up or step-down conversion. In recent years, with the rise of renewable energy sources such as solar energy, direct current provided by solar panels has become a new trend. However, direct current, whether converted from AC power, DC power, or solar energy, uses a separate method of supplying DC loads. Therefore, DC loads typically acquire power in a single manner. In the above single power supply mode, when the direct current is directly from the solar panel, the direct current supplied to the DC load will be unstable due to weather and environmental influences. In addition, when the direct current is from an AC power source or a DC power source, the purpose of environmental protection cannot be achieved. SUMMARY OF THE INVENTION In view of the above, the present invention provides a renewable energy power supply system and a power supply method thereof. The invention mainly connects the DC power source and the non-regeneration power source power supply system converted from the renewable energy source in parallel to supply power to a load. Moreover, 201119182 prioritizes the power distribution control to prioritize the regenerative energy to maximize the power usage effectiveness of the load, so that the non-renewable energy supply system can supply the load with minimal power utilization. 'To achieve the purpose of green environmental protection. The regenerative energy supply system provided by the embodiment of the present invention is used for supplying power to a load, which includes a power generation module, a first conversion module, an energy storage module, a second conversion module, and a Feedback control module. The power generation module is configured to receive the natural renewable energy and convert it into a regenerative power. The first conversion module is coupled in parallel to the power generation device for receiving the regenerative electric energy and converting into the first supply electric power. The energy storage module is connected in parallel to the first-rotating surface group to reduce the first-supply electric energy surface storage and standby power. The second conversion module is coupled in parallel to the first conversion module and the energy storage module for receiving the first supply power and/or the backup power and converting into the second supply power supply load. The feedback control module is connected to the second conversion module and the load, and is used for detecting the input power of the non-renewable energy supply system to supply the load, and controlling the second conversion mode according to the result of the comparison of the input power with a preset value. The group adjusts the amount of power supplied by the second supply of electricity. The regenerative power supply method provided by the embodiment of the invention includes the steps of: first, determining whether an input power supplied to the load exceeds a preset power, and then, if the determination result is yes, regenerating the power supply load required The amount of power is such that the wheeled power supplied to the load does not exceed the preset amount; conversely, if the result of the determination is no, the amount of the regenerative power supply is maintained. In summary, the embodiment of the present invention connects the DC power supply provided by the renewable energy source and the DC power supply provided by the non-renewable energy power supply system in parallel "at the same time, through the detection of the load current, the control of the renewable energy source and the non-201119182 The energy supply system prioritizes the power distribution of the load power supply, so that the renewable energy source preferentially supplies power to the load with maximum power utilization, and enables the non-renewable energy power supply system to supply power to the load with minimum power utilization, thereby achieving green environmental protection. The detailed description of the present invention and the accompanying drawings are to be understood by the accompanying drawings, [Embodiment] Please refer to the first figure. The first figure is a functional block diagram of a regenerative energy supply system according to an embodiment of the present invention. The regenerative energy supply system 1 of the present embodiment is connected in parallel with a non-renewable energy supply system 2, And for the same power supply to use - load 3. The aforementioned load 3 can A DC load, instead of the regenerative energy supply system 2, may be an electric adapter application system of the power adapter (ADApTER). In this embodiment, the regenerative energy supply of the embodiment: a system 1 includes a power generation module 1第一, a first conversion module 12, -: the 杈 group 4 4, a second conversion module 16 and a feedback control module Η. & complex reference --. The power generation module 1G is used to receive large Naturally regenerated and regenerated electric energy P1. The electric power generation module 1〇 can be - too other can receive large self-financial power to convert into electric electricity, and a conversion module 12 is connected in parallel to the electric power generating device 10, :攸" The generating module 10 receives the regenerative electric energy ρι, and the group 12 can be a step-down dc/dc conversion module.

12, the second round junction energy storage module 14 is connected to the first conversion module ...,: the younger-converted (four) and 12 obtained the first - supply electric energy W 201119182 ^ sub-conversion = power Vp. The energy storage module 14 can be a secondary battery: a 'first-old age group 16 and a shaft-connected to the first-conversion module ^ month drain group ... is used to receive the first supply power V1 A / or spare = P 'Asian brother--supply power V1 and/or backup power Vp is converted into second supply power V2 to supply load 3 to convert n+, ^ into a first % can be - system C / DC turn brother: conversion module! 6 test Figure. The feedback control module 17 is connected to the second conversion module

The human load 3' is used to detect an input power Va (e.g., current) of the non-regenerative power supply system 2 for carrying 曰3, wherein the input power % may be - direct current power. As shown in the first figure, the feedback control module 17 includes a = sample unit m, a power distribution unit 172, and a control unit m. The 'sampling unit no' in the basin is used to sample the size of the input power Va. The size of the power Ja corresponds to the generated-sampled signal Vs. Please refer to the diagram of the internal circuit of the implementation of the touch power distribution unit. The power distribution unit 172 internally includes an amplification unit Ο· and an error amplification unit OPA2. As shown in the second figure, the amplification unit 〇pAi of the power distribution unit 172 is connected to the sample unit 17Q, which is used to reverse the sampling signal %, and then the inversely amplified sampling signal Vs, It is sent to the error amplification single OPA2 error Q7, the sampling signal Vs' and the preset value Vref (for example, 5V), and a comparison result = the number Vr. The error amplifying unit 0PA2 sends the comparison result signal Vr to the control unit 174'. The control unit 174 controls the second conversion module 16 to control the conduction period of the power transistor (not shown) according to the comparison result signal Vr, = And controlling the second conversion module 16 to adjust the amount of power output by the second supply power ¥2. 201119182 Refer to the first and second figures. When the power supplied by the non-renewable energy power supply system 2 to the load 3 exceeds a predetermined power amount, for example, w, at this time, the control unit 174 sends the second conversion module 16 a low level comparison result. The signal Vr' is used to increase the on-time of the power transistor in the second conversion module 16, thereby increasing the power supplied by the power generation module 10 and/or the energy storage module 14 to the load 3, so that the load 3 can be completely The power generation module 10 and/or the energy storage module 14 obtains electrical energy to achieve environmental protection. Refer to the first figure. The regenerative power supply system of the present embodiment provides the DC power generation by the power generation module 10? After the step-down process of the first conversion module 12, the energy storage module 14 is charged to perform regenerative energy storage. In addition, the decompressed regenerative electric energy P1 is further connected to the non-renewable energy supply system 2 in parallel by the boosting process of the second conversion module 16 to supply power to the load 3. + 1 her example of the energy supply system 1 to the non-regenerative power supply system 2 to the input power of the load 3 Va (current signal. Intake = sampling 'this sampling signal Vs is processed by the power distribution unit 172, ^ : The second conversion module makes the transistor driver (not shown), the transistor s = controls the power transistor on-time, and then controls the power) f 〇 and / / reads the percentage of energy supplied to the load 3总 中 总 Ϊ 中 , , 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二,,.,. The percentage of the energy occupied by the load 3 is higher, and the percentage of the power supplied from the non-re-energized system 2 to the load 3 is smaller. /~ The thundering power supply system 1 of the present embodiment will be able to be connected to the load 3 in parallel with the solar system, and adjusted according to the wheeled power Va supplied to the load 3 by the non-regenerative (4) 201119182 power supply system 2. The power generation module 10 and/or the energy storage module 4 provide a percentage of the power of the load 3 to achieve priority control of the load 3 power distribution and balance. For the first and second figures, please refer to the third figure. The third figure is a schematic flow chart of the operation method of the renewable energy power supply system of the embodiment. As shown in the third figure, the regenerative power supply method of the present embodiment includes the following steps: First, it is determined whether the wheel-in power Va supplied from the non-renewable energy power supply system 2 to the load 3 exceeds a predetermined power amount (sl00), that is, The inversely amplified sampling signal Vs' and the preset value Vref are compared. Then, 'when the judgment result is YES, the regenerative electric energy P1 increases the electric quantity of the supply load 3' so that the input electric power Va supplied to the load 3 does not exceed: the preset electric quantity (S102) 'meaning that the control unit 174 gives the The second conversion module 16 has a low level comparison result signal Vi for increasing the on-time of the power transistor in the second conversion module 16, thereby allowing the power generation module 10 and/or energy storage. The power supply provided by the module 14 to the load 3 is increased, so that the load 3 can obtain power from the power generation module 10 and/or the energy storage module 14 as much as possible to achieve the purpose of environmental protection. In addition, when the determination result is "NO", the amount of power of the regenerative electric energy p丨 supply load 3 is maintained (S104), that is, the power generation module 1 and/or the energy storage module 14 is continuously supplied to the load 3 The electric energy enables the load 3 to completely obtain electric energy from the power generation module 10 and/or the energy storage module 14 to achieve the purpose of environmental protection. [S 1 in step S104, 'the regenerative electric energy pi will also charge the energy storage module 14 to store the backup electric power Vp in the energy storage module 4', and then determine whether the regenerative electric energy Ρ1 is sufficient to supply the electric power required by the load 3. (S106), when the determination result of step S106 is "YES", the regenerative electric energy is maintained? 1 supply load 3 9 201119182 =, the required electricity $ (sl 〇 4). Further, when the judgment result of the step is ', ', the amount of power required for the load 3 will be supplied together with vp (S108). After the electric knife, it is then determined whether the regenerative electric energy ρι cannot be supplied. When the result of the determination in step S110 is YES, ', the amount of power required to supply the load 3 is prepared by the preparation (S112). When the result of the step S10 is "NO", the amount of power required to recharge the regenerative electric energy P1 and the standby electric power i (sl 〇 8) is maintained. ^ After step S112, it is then determined whether the standby electric power Vp is sufficient for =,,,, 3 required power (SU4). When the full result of step MM is "= the amount of power required to supply load 3 with standby power Vp (su2). If the result of the determination of (10) 14 is "No", the amount of power required for the load 3 is supplied from the outside of the standby power to the input force Va (S116). After the step S116, "following whether the standby power is not = handsome" is performed. The result of the judgment of the coffee is,,,,,, the amount of electric power (s 12 0 ) required to supply the load 3 by the second Y V V. When the result of the step S118 is NO, the standby electric power Vp is supplied together with the input electric power Va. The power required by the load 3 (S116). Referring to the fourth figure, the fourth figure is a schematic diagram of the first power supply according to an embodiment of the present invention. As shown in the fourth figure, when the sun is relatively strong, the present is The regeneration of the embodiment is also the power generation module in the source power supply system i, which can be used to regenerate the Wei P1. The regenerative power ρι is used to store the energy storage module, and 14 to regenerate the stored electrical energy. On the other hand, the regenerative electric energy P1 is supplied with power to the load 3 via the second conversion module 16. Thus, in the case of strong sunlight, the surface energy can hardly provide power to the load 3, while the load 3 The electricity to be consumed is completely powered by solar energy 201119182 The generation module ίο is preferentially provided, and the + line is shown. The power flow direction is as shown in the fourth figure in the virtual reference five picture, and the fifth picture is the y road called _ flow diagram. As shown in the fifth figure, the free example of the application In the case of the second-generation power supply system, the solar energy is not strong, the power P1 is regenerated by the second conversion module (f), and at this time, the energy is supplied to provide the load 3 Need to eliminate part of the power to the load 3 using ^ ^ Le two conversion module 16 will mention this, in the case of solar light is not strong second, her insufficient regenerative energy P1. Also does not provide power to the load 3, (four) 1 renewable energy supply system 2 The power required to generate the mode, the group i0 and the energy storage surface 14 f 3 is represented by the electric line as indicated by the broken line in the fifth figure. At this time, the electric energy flow refers to the sixth picture, and the sixth picture is *^ The schematic diagram of the process. As shown in the sixth embodiment, the third power supply of the regenerative energy supply system 1 is free of sunlight, and the power enthalpy of the embodiment is used for the load 3, and the knife generation module 10 cannot be used at this time. Provided by the regenerative energy storage module 14. Storage mode: 14 ^ 3 required The electric energy will be completely from the second conversion module 16 to the standby power VP pre-stored to the load 3f via the non-regenerative energy. The same τ is in the rainy day, and the required power is completely consumed by the energy storage module 14. := As shown in the dotted line of the sixth figure t. ^Electricity of this continent · Yingliu = the fourth power supply of the second embodiment of the renewable energy supply line

When Vp is insufficient to provide the backup power of the subscriber via the second conversion module 16, the non-renewed wire uses the supply unit (4) = horsepower 201119182 to compensate for insufficient backup power Vp. Thus, in the foregoing case, the electric energy required for the load 3 is supplied by the energy storage module 14 together with the non-renewable energy supply system 2, and at this time, the electric energy flows as indicated by the broken line in the seventh figure. Referring to the eighth embodiment, an eighth diagram is a schematic diagram of a fifth power supply flow according to an embodiment of the present invention. As shown in the eighth figure, the standby power Vp prestored in the energy storage module 14 in the absence of sunlight and the regenerative power supply system 1 of the present embodiment is very weak, 'when the load 3 cannot be re-powered, the load 3 is required. The electrical energy will be provided entirely by the non-renewable energy supply system 2, at which point the electrical energy flow is as indicated by the dashed line in Figure 8. In summary, the embodiment of the present invention mainly connects a solar-converted DC power source and a non-renewable energy power supply system in parallel to supply power to a load and control solar energy and non-renewable energy through 'measurement of load current'. The power supply system prioritizes the power supply to the load, so that the solar power can supply the load with maximum power utilization, and at the same time, the non-renewable energy supply system is minimized. Load power supply, so as to achieve the purpose of environmental protection. The above description is only the preferred embodiment of the present invention, but the features of the present invention are not limited to the 'any variation or modification that can be easily considered in the field of the present invention. , can be covered in the following patent scope of this case. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a functional block diagram of a regenerative energy supply system according to an embodiment of the present invention; a first diagram of an internal circuit of a power distribution unit according to an embodiment of the present invention; 12 201119182 The schematic diagram of the operation method of the regenerative power supply system of the present embodiment; the fourth diagram is a schematic diagram of the first power supply flow according to the embodiment of the present invention; and the fifth figure is a schematic diagram of the second power supply flow according to the embodiment of the present invention; FIG. 7 is a schematic diagram of a fourth power supply flow according to an embodiment of the present invention; FIG. 7 is a schematic diagram of a fourth power supply flow according to an embodiment of the present invention; and FIG. 8 is a schematic diagram of a fifth power supply flow according to an embodiment of the present invention. [Main component symbol description] Renewable energy supply system 1 Power generation module 10 First conversion module 12 Energy storage module 14 Second conversion module 16 Feedback control module 17 Non-renewable energy supply system 2 Load 3 Regenerative power P1 First supply power VI Second supply power V2 Input power Va Sample signal Vs 201119182 Backup power Vp Sampling unit 170 Power distribution unit Π2 Control unit 174 Amplification unit OPA1 Error amplification unit OPA2 Reverse amplified sample signal Vs' Preset value Vref Alignment result signal Vr

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Claims (1)

201119182 VII. Patent application scope: 1. A kind of renewable energy power supply system, which is jointly supplied with a non-renewable energy supply system to a load, including: a power generation group, receiving natural renewable energy, and converting into a regenerative energy; The first conversion module is coupled in parallel to the power generation device, and the first conversion module receives the regenerative electric energy and converts it into a first supply power; - an energy storage module, which is supplemented in parallel with the first conversion The first energy conversion module is coupled to the first conversion module and the energy storage group, and the second conversion module receives the energy storage. The second conversion module is coupled in parallel to the first conversion module and the energy storage group. The first supply power and/or the backup power is converted into a second supply power to supply the load; and a feedback control module is coupled to the second conversion module and the load, and the feedback control module detects the non- The regenerative energy supply system supplies an input power to the load, and controls the second conversion module to adjust the second supply according to the result of the input power being compared with a preset value Power power output. 2'7 Renewable energy power supply system according to item 1 of the patent scope, wherein the power generation module is a solar power supply module. /, V 3. For example, please refer to the renewable energy power supply system described in the patent _ 丨 ,, wherein the conversion module is a step-down DC/DC conversion module. 4. The application of the renewable energy supply system described in claim 4, wherein the second conversion module is a boost type Dc/Dc conversion module. " ^ 5. The regenerative energy supply system as described in claim 4, wherein the 15 201119182 load is a DC load. 6. The regenerative power supply system as described in claim 5, wherein the input power 7. The regenerative power supply system of claim 1, wherein the feedback control module comprises: a sampling unit that samples the input power and generates a sampling signal; a power distribution unit, Coupled in the sampling unit, the sampling signal is compared with the preset value 'and generates a comparison result signal; and °; * a control unit coupled to the power distribution unit, the control unit is based on the comparison The result signal is used to control the second conversion module to adjust the power output of the second supply power. 8. A method for regenerative energy supply, the steps comprising: μ-a Dan-Yang energy supply system and the same power supply to a load; determining non-renewable energy Whether the input power supplied by the power supply system to the load exceeds a preset power; if, 'the renewable energy power supply system increases the regenerative energy Supplying the negative electric power f' such that the electric power of the wheel supplied to the load does not exceed the preset electric quantity; and, if: the electric energy supply system maintains the regenerative electric energy supply to the load. 9. : Storage of regenerative electric energy into "backup power. The raw cut power supply method is also έ ο ο ο ο ο ο ο ο ο ο ο ο ο ο ο 201119182 π. If you apply for the renewable energy supply method described in Section 1G of the Patent Park, after the step of determining whether the power is required to supply the power required by the load, +疋, the required regenerative energy is required to supply the load. The amount of electricity, if not, = the electricity required to supply the load by the regenerative electric energy and the backup power. 12^ The scope of application of the patent can be determined by the heart of the regenerative energy to determine whether the regenerative electric energy cannot supply electricity. After the method_method, _ standby power ^ί after the step of supplying power, if yes, the amount of power required by the backup load, if not, to maintain the regenerative electric energy, the power required to supply the load. Including: the use of the renewable energy supply method described in Item 13 is also included, and it is also included whether the power is sufficient to control the amount of electricity required. The regenerative electricity used in Item 14 of Item 2 is sufficient to supply the load. 2 No: The power required by the G for the load is supplied by the power supply. The force is used to supply the load together with the input power, and the method of re-sharing (4) is also included. The use of H is not the power supply method of the renewable energy mentioned in Item 2. If the power of the wheel is determined, the power is supplied to the input power. ^^