CN208674874U - A kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme - Google Patents

A kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme Download PDF

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Publication number
CN208674874U
CN208674874U CN201821483342.3U CN201821483342U CN208674874U CN 208674874 U CN208674874 U CN 208674874U CN 201821483342 U CN201821483342 U CN 201821483342U CN 208674874 U CN208674874 U CN 208674874U
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China
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microgrid
energy
sub
power
capacitance sensor
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Expired - Fee Related
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CN201821483342.3U
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Chinese (zh)
Inventor
何黎君
程杉
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects

Abstract

The utility model discloses a kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme, each sub- microgrid includes respective energy power pack and monitor portion;The energy power pack includes photovoltaic generating system, hydroelectric power system, wind generator system and gas power generation system, and each sub- microgrid includes current transformer, distribution box, ferric phosphate lithium cell group and load;The sub- microgrid accesses 380V power distribution network in a manner of double bus scheme.The utility model establishes a kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme, clean energy resource application percentage can be improved, Optimization of Energy Structure, promote urban life ambient level, urban waterlogging is eliminated to threaten, power generation uses nearby nearby, and has important practical application value to the stability for improving more microgrid interacted system operations.

Description

A kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme
Technical field
The utility model belongs to micro-capacitance sensor field, and in particular to a kind of multiple-energy-source micro-capacitance sensor of double bus scheme mutually contacts System.
Background technique
With popularizing for new energy power generation technology, the deployment of civilian micro-capacitance sensor is increasing.With distribution type renewable energy The micro-capacitance sensor that power generation and energy-storage system combine can effectively improve energy utilization rate, reduce environmental pollution.Partial zones at this stage There are multiple neighbouring micro-capacitance sensors in domain, and can be interconnected and form more micro-capacitance sensors.It is different from single micro-capacitance sensor for more microgrids Be, can not only with power grid positive energy exchange, and can between microgrid and microgrid positive energy exchange.At present for multiple-energy-source across ground The research of more microgrid interacted systems of area's complementation and field operation experiences are less, in order to solve place renewable energy abundant The problem of local consumption, trans-regional consumption and micro-capacitance sensor interacted system operation stability, it is necessary to develop a kind of double bus scheme Multiple-energy-source micro-capacitance sensor interacted system, promote adaptation to local conditions development, promote renewable energy consumption, energy-saving and emission-reduction, so that mostly micro- Net operation is more reliable and more stable.
Utility model content
Purpose of the utility model is to solve above-mentioned the shortcomings of the prior art, provide a kind of double-bus The multiple-energy-source micro-capacitance sensor interacted system of wiring has important meaning to the research of more microgrid interacted systems of construction multi-energy complementation Justice.
To solve the above-mentioned problems, the utility model uses following technical scheme:
A kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme, including power distribution network, more microgrid buses and at least three Sub- microgrid, each sub- microgrid include respective energy power pack and monitor portion;The energy power pack includes Photovoltaic generating system, hydroelectric power system, wind generator system and gas power generation system, each sub- microgrid includes unsteady flow Device, distribution box, ferric phosphate lithium cell group and load;Each sub- microgrid includes sub- microgrid bus, wherein the energy Power pack is connected by breaker and contactor with the sub- microgrid bus;The sub- microgrid is connect in a manner of double bus scheme Enter the power distribution network of 380V.
The double bus scheme mode is that two groups of buses are set up between each sub- microgrid and power distribution network, and each sub- microgrid is logical It crosses 1 breaker and 2 groups of disconnecting switch is connected respectively to two groups of buses, connected between two groups of buses by bus-tie circuit breaker It connects.
Photovoltaic generating system includes photovoltaic panel, distribution box and photovoltaic DC-to-AC converter;The photovoltaic panel is connected with distribution box, distribution Case is connected with photovoltaic DC-to-AC converter;Hydroelectric power system includes small hydraulic turbine and current transformer, small hydraulic turbine and current transformer phase Connection;Wind generator system includes wind-driven generator, distribution box and current transformer, and the wind-driven generator is connected with distribution box, The distribution box is connected with current transformer;Gas power generation system includes gas turbine, distribution box and current transformer, the gas turbine It is connected with distribution box, the distribution box is connected with current transformer.
The monitor portion includes current monitor, voltage monitor, power controller and microgrid control monitor portion; The current monitor is connect with micro-capacitance sensor, and the voltage monitor is connect with micro-capacitance sensor, the power controller with Voltage monitor, current monitor are electrically connected, and the microgrid control monitor portion and power controller are electrically connected.
The technical effect of the utility model are as follows:
1. double bus scheme mode high reliablity used by, flexibility is high, and enlarging is convenient.It is any under grid-connect mode The maintenance of group bus or not interruption of power supply for a long time when failure, are conducive to the stability and reliability that improve more micro-grid systems operations;
2. multiple-energy-source micro-capacitance sensor mutual contact mode used by gives full play to adaptation to local conditions benefit, can be exclusive by different regions Photovoltaic power generation or wind-power electricity generation use more microgrid mutual contact modes using micro-capacitance sensor progress on-site elimination, carry out it across ground Area's consumption, greatly improves energy utilization rate, energy conservation and environmental protection, and can reduce the dependence to power distribution network, reduces big with power distribution network Power interaction;
3. carrying out energy complementation using the climate difference of different regions, the roof rainwater collecting device used is small-sized water turbine The power generation of machine provides may;Power outages are reduced, the cost of power transmission and distribution is reduced, improve electric power utilization rate;
4. the normal operation of micro-capacitance sensor can be effectively ensured in monitor portion, it is able to achieve internal electric source and load integration operation simultaneously By the coordinated control with main power grid, meet user to distributed generation resource access, power quality, power supply reliability and safety It is required that.Wherein energy-storage system control monitor portion can guarantee smoothly switch micro-capacitance sensor and off-network mode, can overcome well new Randomness, the fluctuation, intermittent influence of energy power generation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, a kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme, including power distribution network, more microgrid buses With at least three sub- microgrids, each sub- microgrid includes respective energy power pack and monitor portion;The energy supplies Electric part includes photovoltaic generating system, hydroelectric power system, wind generator system and gas power generation system, and each sub- microgrid is equal Including current transformer, distribution box, ferric phosphate lithium cell group and load;Each sub- microgrid includes sub- microgrid bus, wherein The energy power pack is connected by breaker and contactor with the sub- microgrid bus;The sub- microgrid is connect with double-bus Line mode accesses the power distribution network of 380V.
The double bus scheme mode is that two groups of buses are set up between each sub- microgrid and power distribution network, and each sub- microgrid is logical It crosses 1 breaker and 2 groups of disconnecting switch is connected respectively to two groups of buses, connected between two groups of buses by bus-tie circuit breaker It connects.Due to this structure, can avoid having a power failure for a long time when bus-bar fault or maintenance.
Photovoltaic generating system includes photovoltaic panel, distribution box and photovoltaic DC-to-AC converter;The photovoltaic panel is connected with distribution box, distribution Case is connected with photovoltaic DC-to-AC converter;Hydroelectric power system includes small hydraulic turbine and current transformer, small hydraulic turbine and current transformer phase Connection is generated electricity with the water that roof rainwater collecting device is collected;Wind generator system includes wind-driven generator, distribution box and unsteady flow Device, the wind-driven generator are connected with distribution box, and the distribution box is connected with current transformer;Gas power generation system includes combustion gas Turbine, distribution box and current transformer, the gas turbine are connected with distribution box, and the distribution box is connected with current transformer.Due to This structure, by photovoltaic power generation to microgrid internal loading, electric car, battery-powered, charging when illumination abundance;Wind-power electricity generation is abundant Area is by wind-driven generator to microgrid internal loading, battery-powered, charging;Roof rain is utilized by house small hydraulic turbine when raining heavyly To microgrid internal loading, electric car, battery-powered, charging, rainwater is handled through strainer to be made the rainwater that water collecting device is collected For urgent domestic water;Night is powered using ferric phosphate lithium cell group, when energy deficiency, enables small hydraulic turbine or gas turbine Power supply;Power interaction can also be carried out between each microgrid.
The monitor portion includes current monitor, voltage monitor, power controller and microgrid control monitor portion; The current monitor is connect with micro-capacitance sensor, and the voltage monitor is connect with micro-capacitance sensor, the power controller with Voltage monitor, current monitor are electrically connected, and the microgrid control monitor portion and power controller are electrically connected.Due to This structure can monitor the electric current in microgrid, prevent fault;The voltage in microgrid can be monitored, circuit event is prevented Barrier;Power controller and voltage monitor, current monitor are electrically connected, and can be controlled power in microgrid;Microgrid control Monitor portion and power controller are electrically connected, can control microgrid and off-network mode.
Double bus scheme mode high reliablity used by the utility model, flexibility is high, and enlarging is convenient, grid-connect mode Under, not interruption of power supply for a long time when the maintenance of any group of bus or failure, be conducive to the stability for improving more micro-grid systems operations and Reliability;Used multiple-energy-source micro-capacitance sensor mutual contact mode gives full play to adaptation to local conditions benefit, and can utilize the gas of different regions It waits difference and carries out energy complementation, the roof rainwater collecting device used provides possibility for the power generation of small hydraulic turbine;It can will be different Area exclusive photovoltaic power generation or wind-power electricity generation carry out on-site elimination using micro-capacitance sensor, and use more microgrid mutual contact modes, make It carries out trans-regional consumption, greatly improves energy utilization rate, energy conservation and environmental protection, and can reduce the dependence to power distribution network, reduction and The high-power interaction of power distribution network;The normal operation of micro-capacitance sensor can be effectively ensured in monitor portion, be able to achieve internal electric source and load one Bodyization runs and passes through and the coordinated control of main power grid, meets user to distributed generation resource access, power quality, power supply reliability With the requirement of safety.Wherein energy-storage system control monitor portion can guarantee smoothly switch micro-capacitance sensor and off-network mode, can be very The randomness for overcoming generation of electricity by new energy well, fluctuation, intermittent influence.

Claims (4)

1. a kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme, it is characterised in that: including power distribution network, more microgrid buses and At least three sub- microgrids, each sub- microgrid include respective energy power pack and monitor portion;The energy power supply Part includes photovoltaic generating system, hydroelectric power system, wind generator system and gas power generation system, and each sub- microgrid wraps Include current transformer, distribution box, ferric phosphate lithium cell group and load;It is described
Each sub- microgrid includes sub- microgrid bus, wherein the energy power pack passes through breaker and contactor and institute Sub- microgrid bus is stated to be connected;The sub- microgrid accesses the power distribution network of 380V in a manner of double bus scheme.
2. a kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme according to claim 1, it is characterised in that: described Double bus scheme mode be that two groups of buses are set up between each sub- microgrid and power distribution network, each sub- microgrid pass through 1 breaker Two groups of buses are connected respectively to 2 groups of disconnecting switch, are connected between two groups of buses by bus-tie circuit breaker.
3. a kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme according to claim 1, it is characterised in that:
Photovoltaic generating system includes photovoltaic panel, distribution box and photovoltaic DC-to-AC converter;The photovoltaic panel is connected with distribution box, distribution box with Photovoltaic DC-to-AC converter is connected;Hydroelectric power system includes small hydraulic turbine and current transformer, and small hydraulic turbine is connected with current transformer; Wind generator system includes wind-driven generator, distribution box and current transformer, and the wind-driven generator is connected with distribution box, described to match Electronic box is connected with current transformer;Gas power generation system includes gas turbine, distribution box and current transformer, the gas turbine and distribution Case is connected, and the distribution box is connected with current transformer.
4. a kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme according to claim 1, it is characterised in that: described Monitor portion include current monitor, voltage monitor, power controller and microgrid control monitor portion;The electric current prison It surveys device to connect with micro-capacitance sensor, the voltage monitor is connect with micro-capacitance sensor, the power controller and voltage monitor, electricity It flows monitor to be electrically connected, the microgrid control monitor portion and power controller are electrically connected.
CN201821483342.3U 2018-09-11 2018-09-11 A kind of multiple-energy-source micro-capacitance sensor interacted system of double bus scheme Expired - Fee Related CN208674874U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110148933A (en) * 2019-04-30 2019-08-20 国网河北省电力有限公司邢台供电分公司 The more bus DC micro-electric planar network architectures of multiple-unit and Sub-region and hierarchical intelligence control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110148933A (en) * 2019-04-30 2019-08-20 国网河北省电力有限公司邢台供电分公司 The more bus DC micro-electric planar network architectures of multiple-unit and Sub-region and hierarchical intelligence control system

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Granted publication date: 20190329

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