CN203312804U - Renewable energy combination electrical network system - Google Patents

Renewable energy combination electrical network system Download PDF

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Publication number
CN203312804U
CN203312804U CN2011202173651U CN201120217365U CN203312804U CN 203312804 U CN203312804 U CN 203312804U CN 2011202173651 U CN2011202173651 U CN 2011202173651U CN 201120217365 U CN201120217365 U CN 201120217365U CN 203312804 U CN203312804 U CN 203312804U
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CN
China
Prior art keywords
generation unit
power generation
power
biogas
wind
Prior art date
Application number
CN2011202173651U
Other languages
Chinese (zh)
Inventor
王得朋
Original Assignee
山东沃而丰新能源工业有限公司
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Application filed by 山东沃而丰新能源工业有限公司 filed Critical 山东沃而丰新能源工业有限公司
Priority to CN2011202173651U priority Critical patent/CN203312804U/en
Application granted granted Critical
Publication of CN203312804U publication Critical patent/CN203312804U/en

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    • Y02E10/763

Abstract

The utility model discloses a renewable energy combination electrical network system. The system comprises a solar energy generation unit, a wind power generation unit and a biogas power generation unit, wherein the solar energy generation unit, the wind power generation unit and the biogas power generation unit are connected to a DC bus and a system controller; and the system controller computes and regulates the power output of the biogas power generation unit by detecting the power output of the wind power generation unit and the solar energy generation unit. The system provided by the utility model is not dependent on conventional energy, causes less pollution to environment, is less affected by weather, is capable of round-the-clock power supplying and has quite high electric energy quality. Besides, the cost per unit power of the micro-electrical network is lower than that of a wind and optical micro-electrical network, and the power supplying is stable.

Description

Regenerative resource combination network system

Technical field

The utility model relates to micro power network basic unit and forms structure, and it relates to the combined system of the different power generation characteristics energy sources of micro power network.

Background technology

Micro power network comprises the small-sized electric system of being transported to of distributed power source, energy storage device, load and monitoring, protective device.It is a system that can realize that the oneself controls, protects and manage.Both can be incorporated into the power networks with large electrical network, also can be with the island network independent operating.Can provide electric energy and heat energy to the user, existing micro power network energy source is generally regenerative resource and conventional energy resource, such micro power network development exists following defect: conventional energy resource can cause pollution to a certain degree to environment, and in regenerative resource, wind energy and luminous energy have the characteristics such as energy density is low, randomness is strong, unstable.Affect the stability of this equipment.

The utility model content

The purpose of this utility model is to provide the regenerative resource combination network system of a kind of high quality of power supply and lower cost.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of regenerative resource combination network system, comprise solar power generation unit, wind power generation unit and biogas power generation unit; Solar power generation unit, wind power generation unit and biogas power generation unit all are connected with system controller with DC bus, and system controller calculates the power stage of regulating the biogas power generation unit by the power stage that detects wind power generation unit and solar power generation unit.

Further, also comprise combining inverter, combining inverter is connected with DC bus, controlled by system controller.

Further, also comprise storage battery, storage battery is connected with DC bus by the DC-DC converter that controlled by system controller.

At first the utility model determines wind energy and the solar energy content of micro power network location, according to availability, become original determine solar energy and wind power generation capacity with unit power, on this basis, determine biogas (biomass energy) generate output according to load, so just formed honourable biogas micro power network.

The beneficial effects of the utility model are:

Regenerative resource combination network system described in the utility model has vast potential for future development, it does not rely on conventional energy resource, environmental pollution is little, be subjected to weather effect little, can round-the-clockly power, have the very high quality of power supply, this micro power network unit power construction cost cost is lower than honourable micro power network, and power supply is stable.

The accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is structural representation of the present utility model.

Embodiment

As shown in the figure, a kind of regenerative resource combination network system, comprise solar power generation unit, wind power generation unit and biogas power generation unit; Solar power generation unit, wind power generation unit and biogas power generation unit all are connected with system controller with DC bus, and system controller calculates the power stage of regulating the biogas power generation unit by the power stage that detects wind power generation unit and solar power generation unit.Wind turbine generator system controller obtains peak power output by controlling generator speed, again by the AC-DC converter by output voltage control at 500v, the power of wind power generation unit is uncontrollable amount, and wind turbine generator system controller sends to system controller by voltage, electric current instantaneous state amount by communication network.

Solar battery array by the DC-DC converter by output voltage control at 500v, the solar-electricity pool controller carries out maximum power tracing control, and voltage, electric current instantaneous state amount are sent to system controller by communication network.Oil-electric engine produces electric energy by burning biogas, again by the AC-DC converter by output voltage control at 500v, the biogas power generation machine controller carries out constant speed control and becomes power controlling, and voltage, electric current instantaneous state amount are sent to system controller by communication network.

Three generator unit output voltages are all 500v with the DC bus voltage coupling, connect together by DC bus (two DC power transmission line), have formed micro power network.At this moment wind power generation unit and solar power generation unit all communicate contact with system controller, system controller is when detecting solar power generation unit and wind power generation unit instantaneous state amount, while detection load and DC bus instantaneous state amount, calculate the power that the biogas power generation unit need to be exported, power instruction is sent to the biogas power generation machine controller, after the biogas power generation machine controller is received instruction, carry out power back-off control, so just can guarantee that micro power network keeps constant voltage 500v.

When wind power generation unit and solar power generation unit are not exported, can disconnect this two unit, the biogas power generation unit powers to micro power network alone.

When busbar voltage was greater than 500v, storage battery absorbed energy from electrical network, kept DC bus-bar voltage to be stabilized in 500v, when busbar voltage is less than 500v, to electrical network output electric energy, was stabilized in 500v to keep DC bus-bar voltage.

To be greater than load required when the micro power network generated output, and the biogas power generation unit is while having the generating surplus, and combining inverter is started working, and to large electrical network power output, takes when the micro power network maximum generating watt is less than load, and combining inverter is from large electrical network absorbed power.

In general, the physical distance between the generator unit of micro power network is not far, can the controller of each generator unit be connected with central controller by wire transmission, forms effective communication and controls network.

Above disclosed be only the specific embodiment of this patent, but this patent is not limited thereto, for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle, the distortion of making should be considered as belonging to the utility model protection range.

Claims (1)

1. a regenerative resource combines network system, comprise solar power generation unit, wind power generation unit and biogas power generation unit, it is characterized in that: solar power generation unit, wind power generation unit and biogas power generation unit all are connected with system controller with DC bus, and system controller calculates the power stage of regulating the biogas power generation unit by the power stage that detects wind power generation unit and solar power generation unit.
CN2011202173651U 2011-06-24 2011-06-24 Renewable energy combination electrical network system CN203312804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202173651U CN203312804U (en) 2011-06-24 2011-06-24 Renewable energy combination electrical network system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202173651U CN203312804U (en) 2011-06-24 2011-06-24 Renewable energy combination electrical network system

Publications (1)

Publication Number Publication Date
CN203312804U true CN203312804U (en) 2013-11-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202173651U CN203312804U (en) 2011-06-24 2011-06-24 Renewable energy combination electrical network system

Country Status (1)

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CN (1) CN203312804U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105937477A (en) * 2016-06-07 2016-09-14 长安大学 Wind power and photovoltaic microgrid water pumping and energy storing power generation system
CN106451554A (en) * 2016-11-22 2017-02-22 新奥泛能网络科技股份有限公司 Electricity generation method and electricity generation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105937477A (en) * 2016-06-07 2016-09-14 长安大学 Wind power and photovoltaic microgrid water pumping and energy storing power generation system
CN106451554A (en) * 2016-11-22 2017-02-22 新奥泛能网络科技股份有限公司 Electricity generation method and electricity generation device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131127

Termination date: 20160624