CN205753590U - A micro network power supply system - Google Patents

Abstract

The utility model discloses a micro-network power supply system. The system includes at least one main light pole and several auxiliary light poles. The several auxiliary light poles are connected in parallel with each other on a main light pole. The main light pole is provided with a power generation unit, a Voltage unit, energy storage unit, first load unit, etc., and a step-down unit and a second load unit are set on the auxiliary light pole. Taking the installation of street lights on the bridge as an example, the main light pole can be set at the bridge head, and the auxiliary light pole can be set on the bridge surface. After the voltage is boosted by the booster unit of the main light pole, it is transmitted to the auxiliary light pole through cables. And the second load unit is driven to work by the step-down unit of the auxiliary light pole after the step-down process. Since the second load unit of the auxiliary light pole is powered by the main light pole when it is working, there is no need to set up a power generation unit and an energy storage unit on the auxiliary light pole, which greatly reduces the footprint of the auxiliary light pole when it is installed, and effectively reduces the It reduces installation and maintenance costs, and is conducive to large-scale promotion and use.

Description

A micro network power supply system

technical field

The utility model relates to the field of renewable energy, in particular to a micro-network power supply system.

Background technique

With the development of science and technology and the progress of society, energy has become an important material basis for developing the national economy and improving people's living standards. The development of renewable energy, changing the current energy structure, and realizing the sustainable development of human society have become an important theme of future social development. Both wind energy and solar energy are good renewable energy sources, and the wind-solar hybrid power generation system can take advantage of the complementarity of wind energy and solar energy resources. It is a new energy generation system with high cost performance and has a good application prospect.

At present, my country's wind-solar hybrid systems are generally vulnerable to obstacles (such as trees on both sides of the road, buildings, etc.) in practical applications, resulting in low utilization of solar power and wind power, short battery life, and high cost. In order to solve the above problems, a one-to-one correspondence method is adopted for installation in practical applications, that is, a wind-solar hybrid system is provided for each street lamp. Due to the existence of energy storage units, wind turbines, etc. in the wind-solar hybrid system, an additional floor area is usually required, which limits the installation of the wind-solar hybrid system. If each street lamp needs to be equipped with a wind-solar hybrid system, it will take up a lot of additional bridge deck area and affect the use of the road.

To sum up, how to solve the problems that the installation of the existing wind-solar hybrid system is easily restricted by road conditions, which is not conducive to popularization and use, is an urgent problem in the field of renewable energy.

Utility model content

To this end, it is necessary to provide a new technical solution for micro-network power supply, which is used to solve the problems that the wind-solar hybrid system occupies a large area, has high installation costs, and is not conducive to popularization and use.

In order to achieve the above purpose, the inventor provides a micro-network power supply system, the system includes at least one main light pole and several auxiliary light poles, and several auxiliary light poles are connected in parallel with each other on a main light pole, and the main light pole A power generation unit, a voltage detection unit, a logic comparison circuit, a signal amplification circuit, a control unit, an energy storage unit, a booster unit and a first load unit are arranged on the lamp post, and a step-down unit and a second load unit are arranged on the auxiliary light pole The power generation unit is connected with the voltage detection unit, the voltage detection unit is connected with the logic comparison circuit, the control unit is connected with the logic comparison circuit, the logic comparison circuit is connected with the signal amplification circuit, and the signal amplification circuit is connected with the control connected to the unit; the control unit is connected to the energy storage unit, the boost unit is connected to the power generation unit, the boost unit is connected to the energy storage unit, the first load unit is connected to the power generation unit, and the first load The unit is connected to the energy storage unit, and the step-down unit is connected to the second load unit;

The voltage detection unit is used to detect the voltage provided by the power generation unit, and the logic comparison circuit is used to compare the voltage provided by the power generation unit with a first preset threshold, and send a first signal to the signal amplification circuit according to the comparison result ;

The signal amplification circuit is used to amplify the first signal, and the control unit is used to control the first load unit to be in a working state;

The boost unit is used to boost the voltage output by the power generation unit or the energy storage unit;

The step-down unit is used for stepping down the boosted voltage, and transmitting the stepped-down voltage to the second load unit, so that the second load unit is in a working state.

Further, the system further includes a calculation unit connected to a logic comparison circuit, and the power generation unit includes a wind power generation module;

The logic comparison circuit is also used to judge that the electricity provided by the current wind power generation module is compared with the second preset threshold, and the control unit is used to transmit the difference electricity to the first load unit or store the difference circuit in the storage An energy unit, the difference electric quantity is the difference between the electric quantity provided by the wind power generation module calculated by the calculation unit and the second preset threshold.

Further, the main light pole also includes a first driving unit, and the auxiliary light pole also includes a second driving unit, the first driving unit is connected to the first load unit, and the second driving unit is connected to the second load unit connection; the control unit is used to control the first drive unit to drive the first load unit to be in a working state; the reduction unit is used to transmit the reduced voltage to the second drive unit, and the second drive unit drives the second load Unit is in working condition.

Further, the power generation unit further includes a solar power generation module, and the voltage detection module is used to detect the voltage provided by the solar power generation module.

Further, if the solar power generation module is a photovoltaic panel, the first preset threshold is determined according to the light intensity of the photovoltaic panel.

The micro-network power supply system described in the above technical solution, the system includes at least one main light pole and several auxiliary light poles, the several auxiliary light poles are connected in parallel with each other on a main light pole, and the main light pole is provided with a power generation unit, a lifting Voltage unit, energy storage unit, first load unit, etc., and a step-down unit and a second load unit are set on the auxiliary light pole. Taking the installation of street lights on the bridge as an example, the main light pole can be set at the bridge head, and the auxiliary light pole can be set on the bridge surface. After the voltage is boosted by the booster unit of the main light pole, it is transmitted to the auxiliary light pole through cables. And the second load unit is driven to work by the step-down unit of the auxiliary light pole after the step-down process. Since the second load unit of the auxiliary light pole is powered by the main light pole when it is working, there is no need to set up a power generation unit and an energy storage unit on the auxiliary light pole, which greatly reduces the footprint of the auxiliary light pole when it is installed, and effectively reduces the It reduces installation and maintenance costs, and is conducive to large-scale promotion and use.

Description of drawings

Fig. 1 is a schematic diagram of a micro-network power supply system related to an embodiment of the present invention;

Fig. 2 is a flowchart of a micro-network power supply method according to an embodiment of the present invention;

Fig. 3 is a flowchart of a micro-network power supply method according to another embodiment of the present invention.

Explanation of reference signs:

11. Main light pole;

101. Power generation unit; 111. Wind power generation module; 121. Solar power generation module;

102. Voltage detection unit;

103. Calculation unit;

104. Logic comparison circuit;

105. Control unit;

106. Energy storage unit;

107. The first load unit;

108. Booster unit;

12. Auxiliary light pole;

121. Step-down unit;

122. The second load unit.

detailed description

In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.

Please refer to FIG. 1 , which is a schematic diagram of a micro-network power supply system according to an embodiment of the present invention. The system includes at least one main light pole 11 and several auxiliary light poles 12, several auxiliary light poles 12 are connected in parallel to one main light pole 11, and the main light pole 11 is provided with a power generation unit 101, a voltage detection unit 102, A logic comparison circuit 103, a control unit 105, an energy storage unit 106, a boost unit 108 and a first load unit 107, the auxiliary light pole 12 is provided with a step-down unit 121 and a second load unit 122; the power generation unit 101 It is connected with the voltage detection unit 102, the voltage detection unit 102 is connected with the logic comparison circuit 103, the control unit 105 is connected with the logic comparison circuit 103, the control unit 105 is connected with the energy storage unit 106, and the boost unit 108 connected to the power generation unit 101, the step-up unit 108 is connected to the energy storage unit 106, the first load unit 107 is connected to the power generation unit 101, the first load unit 107 is connected to the energy storage unit 106, the step-down The unit 121 is connected to the second load unit 122;

The voltage detection unit 102 is used to detect the voltage provided by the power generation unit 101, and the logic comparison circuit 103 is used to judge whether the voltage provided by the power generation unit 101 is lower than a first preset threshold, and if so, the control unit 105 is used to control The first load unit 107 is in the working state; otherwise, the control unit 105 is used to control the first load unit 107 to be in the stop working state, and store the electricity provided by the power generation unit 101 in the energy storage unit 106;

When the first load unit is in working state,

The boost unit 108 is used to boost the voltage output by the power generation unit or the energy storage unit;

The step-down unit 121 is used for stepping down the boosted voltage, and transmitting the stepped-down voltage to the second load unit 122, so that the second load unit 122 is in a working state.

When using the micro-network power supply system, the voltage detection unit 102 first detects the voltage provided by the power generation unit 101 . In this embodiment, the power generation unit 101 includes a wind power generation module 111 and a solar power generation module 121. The wind power generation module 111 can be a wind power generator or a wind power generator set, which is used to convert wind energy into mechanical energy, and then convert the mechanical energy into electrical energy. The electric energy can be used to charge the energy storage unit, and can also be output to the first load unit for use. The solar power generation module 121 is used to convert solar energy into electrical energy, and can adopt methods such as photovoltaic power generation, photochemical power generation, light induction power generation or photobiological power generation. Preferably, in an embodiment of the present utility model, the solar power generation module is a photovoltaic power generation module. plate. In this embodiment, "the voltage detection unit is used to detect the voltage provided by the power generation unit" includes: the voltage detection module is used to detect the voltage provided by the solar power generation module. For a wind-solar hybrid system, there is usually wind around during the day and night, so the wind power generation module can work around the clock to convert wind energy into electrical energy. The solar power generation module only works during the day, and when it is in the working state, voltage will be generated on both sides, so the voltage at both ends of the solar power generation module can be detected by the voltage detection unit to judge whether it is day or night, and then control the first Whether the load unit (that is, the lamp corresponding to the main lamp pole) is in working condition.

Then the logic comparison circuit 103 judges whether the voltage provided by the generating unit 101 is lower than the first preset threshold value, if so, the control unit 105 controls the first load unit 107 to be in the working state; otherwise the control unit 105 controls the first load unit 107 to be in a stop working state, and store the electricity provided by the power generation unit 101 in the energy storage unit 106 . The first load unit is a lamp corresponding to the main light pole, and the energy storage unit is an element with a power storage function, such as a storage battery. In this embodiment, the system further includes a signal amplification circuit. When the logic comparison circuit determines that the voltage provided by the power generation unit 101 is lower than the first preset threshold, the first signal will be sent to the signal amplification circuit, and the signal amplification circuit will The first signal is amplified and sent to the control unit, and the control unit receives the first signal, and then controls the first load unit to be in a working state.

The first preset threshold can be a custom value, or a voltage value determined according to a certain light intensity of the solar power generation module (the voltage provided by the solar power generation module is different under different light intensities). In this embodiment, the solar power generation module is a photovoltaic panel, and the first preset threshold is determined according to the light intensity of the photovoltaic panel. Since the voltage provided by photovoltaic panels is closely related to the illuminated area and intensity, generally the illuminated area of photovoltaic panels does not change much, but the intensity of sunlight during the day is constantly changing, that is, the voltage provided by photovoltaic panels is constantly changing. This change is mainly caused by the light intensity, so the first preset threshold is most appropriate to be determined according to the light intensity of the photovoltaic panel. Photovoltaic panels can use the photovoltaic effect of the semiconductor interface to directly convert light energy into electrical energy. In the working state, the surface of photovoltaic panels can receive sunlight and convert solar energy into electrical energy for output, which is very photovoltaic. The electrical energy that photovoltaic panels can generate is closely related to the intensity of the sun's light. When the intensity of the sun's light is greater, the greater the electrical energy generated, the greater the voltage that photovoltaic panels can provide. When the sun's light intensity is lower, the voltage that photovoltaic panels can provide is also smaller. Therefore, as the solar power generation module in this embodiment, the photovoltaic panel can not only convert light energy into electrical energy well during the day, and charge the energy storage unit; at night, the photovoltaic panel can also sensitively Sensing the intensity of sunlight (the weaker the intensity of light, the lower the voltage provided by the photovoltaic panel), so that the logic comparison circuit can accurately determine whether the voltage provided by the photovoltaic panel is lower than the first preset threshold, and if so, control The unit controls the load unit to be in working condition. Because the first preset threshold is determined according to the light intensity of the photovoltaic panel.

When the first load unit is in the working state, the boost unit 108 boosts the voltage output by the power generation unit or the energy storage unit. There is no power generation unit and energy storage unit on the auxiliary light pole, so the footprint of the auxiliary light pole is greatly reduced. At the same time, if the second load unit of the auxiliary light pole needs to be in working state (that is, the lamps on the auxiliary light pole need to be on), then the voltage needs to be transmitted from the main light pole to the auxiliary light pole. In order to reduce the line loss in the process of voltage retransmission and cause power waste, it is necessary to boost the voltage output by the power generation unit or the energy storage unit. In this embodiment, the boost unit is a DC booster.

Then, the step-down unit performs step-down processing on the boosted voltage, and transmits the reduced voltage to the second load unit 122 , so that the second load unit 122 is in a working state. Preferably, the step-down unit is a DC step-down unit. The step-down unit reduces the boosted voltage to the required voltage in the working state of the second load unit.

In this embodiment, the system further includes a calculation unit, which is connected to a logic comparison circuit, and the logic comparison circuit is also used to judge whether the current power provided by the wind power generation module is greater than the second preset threshold, and if so Then the control unit is used to transmit the electric quantity provided by the current wind power generation module to the first load unit, the calculation unit is used to calculate the difference between the electric quantity provided by the wind power generation module and the second preset threshold value to obtain the difference electric quantity, and the control unit also It is used to store the difference power in the energy storage unit; otherwise, the control unit is used to transmit the current power provided by the wind power generation module to the load unit, and the calculation unit is used to calculate the difference between the second preset threshold and the power provided by the wind power generation module difference, to obtain the differential electric quantity, and the control unit is used to obtain the differential electric quantity from the energy storage unit, and transmit the differential electric quantity to the first load unit. Specifically, when in use, if the power provided by the wind power generation module is greater than the power consumption of the first load unit and all the second load units, the control unit will transfer the power provided by the wind power generation module to the first load unit and the second load unit. The power consumption of the two load units is transmitted to the corresponding load unit, and the remaining differential power is stored in the energy storage unit through the control unit; if the power provided by the wind power generation module is equal to the first load unit and all the second loads When the unit is working, the control unit will directly transmit the power provided by the wind power generation module to the corresponding load unit; if the power provided by the wind power generation module is less than the power consumption of the first load unit and all the second load units power, the control unit will transmit the current power provided by the wind power generation module plus the difference power obtained from the energy storage unit to the corresponding load unit, so as to ensure that the first load unit and all second load units have enough power to be able to normal work. In this way, on the one hand, the electricity provided by the wind power generation module in the wind-solar hybrid system can be fully absorbed and utilized; on the other hand, the number of charging and discharging cycles of the battery is reduced, which can effectively prolong the service life of the battery.

In this embodiment, the main light pole further includes a first driving unit, and the auxiliary light pole further includes a second driving unit, the first driving unit is connected to the first load unit, and the second driving unit is connected to the The second load unit is connected; "the control unit is used to control the first load unit to be in the working state" includes: the control unit is used to control the first drive unit to drive the first load unit to be in the working state; the step-down unit is used to " Transmitting the reduced voltage to the second load unit so that the second load unit is in the working state" includes: the reducing unit is used to transmit the reduced voltage to the second drive unit, and the second drive unit drives the second load unit in working condition. For example, the first load unit and the second load unit are LED lamps, then the first driving unit and the second driving unit are corresponding LED lamp drivers.

As shown in Figure 2, the utility model also provides a micro-network power supply method, which is applied to a micro-network power supply system, and the system includes at least one main light pole and several auxiliary light poles, and several auxiliary light poles They are connected in parallel with each other on a main light pole, and the main light pole is provided with a power generation unit, a voltage detection unit, a logic comparison circuit, a control unit, an energy storage unit, a boost unit and a first load unit, and the auxiliary light pole is equipped with A step-down unit and a second load unit are provided; the power generation unit is connected to a voltage detection unit, the voltage detection unit is connected to a logic comparison circuit, the control unit is connected to a logic comparison circuit, and the control unit is connected to an energy storage unit connection, the boost unit is connected to the power generation unit, the boost unit is connected to the energy storage unit, the first load unit is connected to the power generation unit, the first load unit is connected to the energy storage unit, the step-down The unit is connected to a second load unit; the method comprising the steps of:

First enter step S201, the voltage detection unit detects the voltage provided by the power generation unit. In this embodiment, the power generation unit includes a wind power generation module and a solar power generation module, and the wind power generation module can be a wind power generator or a wind power generating set, which is used to convert wind energy into mechanical energy, and then convert the mechanical energy into electrical energy, which can be used for Charge the energy storage unit, and can also be output to the first load unit for use. The solar power generation module is used to convert solar energy into electrical energy, and can adopt methods such as photovoltaic power generation, photochemical power generation, light induction power generation or photobiological power generation. Preferably, in an embodiment of the present utility model, the solar power generation module is a photovoltaic electric panel . In this embodiment, "the voltage detection unit is used to detect the voltage provided by the power generation unit" includes: the voltage detection module is used to detect the voltage provided by the solar power generation module. For a wind-solar hybrid system, there is usually wind around during the day and night, so the wind power generation module can work around the clock to convert wind energy into electrical energy. The solar power generation module only works during the day, and when it is in the working state, voltage will be generated on both sides, so the voltage at both ends of the solar power generation module can be detected by the voltage detection unit to judge whether it is day or night, and then control the first Whether the load unit (that is, the lamp corresponding to the main lamp pole) is in working condition.

Then enter step S202 logic comparison circuit to judge whether the voltage provided by the power generation unit is lower than the first preset threshold value, if so, enter step S203 control unit to control the first load unit to be in working state; otherwise enter step S204 control unit to control the first load unit It is in a stopped working state and stores the electricity provided by the power generation unit in the energy storage unit. The first load unit is a lamp corresponding to the main light pole, and the energy storage unit is an element with a power storage function, such as a storage battery.

When the first load unit is in the working state, it may enter step S205 to boost the voltage output by the power generation unit or the energy storage unit by the boost unit. There is no power generation unit and energy storage unit on the auxiliary light pole, so the footprint of the auxiliary light pole is greatly reduced. At the same time, if the second load unit of the auxiliary light pole needs to be in working state (that is, the lamps on the auxiliary light pole need to be on), then the voltage needs to be transmitted from the main light pole to the auxiliary light pole. In order to reduce the line loss in the process of voltage retransmission and cause power waste, it is necessary to boost the voltage output by the power generation unit or the energy storage unit. In this embodiment, the boost unit is a DC booster.

Then enter step S206 , the step-down unit performs step-down processing on the boosted voltage, and transmits the stepped-down voltage to the second load unit, so that the second load unit is in the working state. Preferably, the step-down unit is a DC step-down unit. The step-down unit reduces the boosted voltage to the required voltage in the working state of the second load unit.

As shown in Figure 3, in this embodiment, the system further includes a calculation unit connected to a logic comparison circuit, and the method includes: first entering step S301, the logic comparison circuit judges the current wind power generation module provided Whether the electricity is greater than the second preset threshold, if so, enter step S302, the control unit transmits the electricity provided by the current wind power generation module to the first load unit, and the calculation unit calculates the difference between the electricity provided by the wind power generation module and the second preset threshold , to obtain the difference power, the control unit stores the difference power in the energy storage unit; otherwise, enter step S303, the control unit transmits the power provided by the current wind power generation module to the load unit, and the calculation unit calculates the second preset threshold and the wind power generation module The difference between the provided electric quantities is to obtain a differential electric quantity, and the control unit obtains the differential electric quantity from the energy storage unit, and transmits the differential electric quantity to the first load unit.

Specifically, when in use, if the power provided by the wind power generation module is greater than the power consumption of the first load unit and all the second load units, the control unit will transfer the power provided by the wind power generation module to the first load unit and the second load unit. The power consumption of the two load units is transmitted to the corresponding load unit, and the remaining differential power is stored in the energy storage unit through the control unit; if the power provided by the wind power generation module is equal to the first load unit and all the second loads When the unit is working, the control unit will directly transmit the power provided by the wind power generation module to the corresponding load unit; if the power provided by the wind power generation module is less than the power consumption of the first load unit and all the second load units power, the control unit will transmit the current power provided by the wind power generation module plus the difference power obtained from the energy storage unit to the corresponding load unit, so as to ensure that the first load unit and all second load units have enough power to be able to normal work. In this way, on the one hand, the electricity provided by the wind power generation module in the wind-solar hybrid system can be fully absorbed and utilized; on the other hand, the number of charging and discharging cycles of the battery is reduced, which can effectively prolong the service life of the battery.

In this embodiment, the main light pole further includes a first driving unit, and the auxiliary light pole further includes a second driving unit, the first driving unit is connected to the first load unit, and the second driving unit is connected to the The second load unit is connected; "the control unit is used to control the first load unit to be in the working state" includes: the control unit is used to control the first drive unit to drive the first load unit to be in the working state; the step-down unit is used to " Transmitting the reduced voltage to the second load unit so that the second load unit is in the working state" includes: the reducing unit is used to transmit the reduced voltage to the second drive unit, and the second drive unit drives the second load unit in working condition. For example, the first load unit and the second load unit are LED lamps, then the first driving unit and the second driving unit are corresponding LED lamp drivers.

The micro-network power supply method and system described in the above technical solution, the system includes at least one main light pole and several auxiliary light poles, several auxiliary light poles are connected in parallel with each other on a main light pole, and a power generation unit is arranged on the main light pole , step-up unit, energy storage unit, first load unit, etc., and a step-down unit and a second load unit are arranged on the auxiliary light pole. Taking the installation of street lights on the bridge as an example, the main light pole can be set at the bridge head, and the auxiliary light pole can be set on the bridge surface. After the voltage is boosted by the booster unit of the main light pole, it is transmitted to the auxiliary light pole through cables. And the second load unit is driven to work by the step-down unit of the auxiliary light pole after the step-down process. Since the second load unit of the auxiliary light pole is powered by the main light pole when it is working, there is no need to set up a power generation unit and an energy storage unit on the auxiliary light pole, which greatly reduces the footprint of the auxiliary light pole when it is installed, and effectively reduces the It reduces installation and maintenance costs, and is conducive to large-scale promotion and use.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the words "comprising..." or "comprising..." does not exclude the presence of additional elements in the process, method, article or terminal device comprising said element. In addition, in this article, "greater than", "less than", "exceeding" and so on are understood as not including the original number; "above", "below", "within" and so on are understood as including the original number.

Although the above-mentioned embodiments have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concepts, so the above is only a summary of the present utility model. The embodiment does not limit the scope of patent protection of the present utility model, and any equivalent structure or equivalent process conversion made by using the specification of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, is the same. Included within the scope of patent protection of the utility model.

Claims (5)

1. a micro-group net electric power system, it is characterised in that described system includes at least one king light bar and some secondary lamp stands, some Secondary lamp stand is parallel with one another on a king light bar, described king light bar is provided with generator unit, voltage detection unit, logic more electric Road, signal amplification circuit, control unit, energy-storage units, boosting unit and the first load unit, described secondary lamp stand is provided with fall Pressure unit and the second load unit；Described generator unit is connected with voltage detection unit, described voltage detection unit and logic ratio Relatively circuit connects, and described control unit is connected with logic comparator circuit, and described logic comparator circuit is connected with signal amplification circuit, Described signal amplification circuit is connected with control unit；Described control unit is connected with energy-storage units, described boosting unit and generating Unit connects, and described boosting unit is connected with energy-storage units, and described first load unit is connected with generator unit, described first negative Carrier unit is connected with energy-storage units, and described pressure unit and the second load unit connect；

Described voltage detection unit is for detecting the voltage that generator unit is provided, and described logic comparator circuit is for by single for generating Voltage and the first predetermined threshold value that unit is provided compare, and send the first signal to signal amplification electricity according to comparative result Road；

Described signal amplification circuit for being amplified process to the first signal, and described control unit is single for controlling the first load Unit is in running order；

Described boosting unit carries out boosting process for the voltage exporting generator unit or energy-storage units；

Described pressure unit for carrying out blood pressure lowering process to the voltage after boosting, and transmits the voltage after blood pressure lowering to the second load Unit so that the second load unit is in running order.

2. micro-group net electric power system as claimed in claim 1, it is characterised in that described system also includes computing unit, described Computing unit is connected with logic comparator circuit, and described generator unit includes wind power generation module；

Described logic comparator circuit is additionally operable to judge that electricity that current wind electricity generation module is provided and the second predetermined threshold value are carried out Relatively, described control unit is used for by difference charge transport to the first load unit or difference circuit being stored in energy-storage units, Electricity that described difference electricity is provided by the wind power generation module that computing unit is calculated and the difference of the second predetermined threshold value.

Micro-group net electric power system the most according to claim 1 and 2, it is characterised in that described king light bar also includes that first drives Moving cell, described secondary lamp stand also includes the second driver element, described first driver element and the connection of the first load unit, described the Two driver elements and the second load unit connect；Described control unit is for controlling first drive unit drives the first load unit In running order；Described pressure unit is for transmitting the voltage after blood pressure lowering to the second driver element, and the second driver element drives Dynamic second load unit is in running order.

Micro-group net electric power system the most according to claim 1, it is characterised in that described generator unit also includes that solar energy is sent out Electricity module, described voltage detection module is for detecting the voltage that solar electrical energy generation module is provided.

Micro-group net electric power system the most according to claim 4, it is characterised in that described solar electrical energy generation module is photovoltaic electric Plate, then the first predetermined threshold value determines according to the intensity of illumination of photovoltaic electroplax.