CN109149650A - Intelligent monitoring case and its control method, Grid-connected Distributed Generation Power System - Google Patents
Intelligent monitoring case and its control method, Grid-connected Distributed Generation Power System Download PDFInfo
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- CN109149650A CN109149650A CN201811213451.8A CN201811213451A CN109149650A CN 109149650 A CN109149650 A CN 109149650A CN 201811213451 A CN201811213451 A CN 201811213451A CN 109149650 A CN109149650 A CN 109149650A
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- inverter
- intelligent monitoring
- monitoring case
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- output signal
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 6
- 230000001012 protector Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to interconnection technology fields, disclosing a kind of intelligent monitoring case and its control method, Grid-connected Distributed Generation Power System, intelligent monitoring case includes acquisition module and control module, and acquisition module is connect with inverter, for acquiring the input/output signal of inverter, and it is sent to control unit；Control module is connect with acquisition module, for controlling being opened or closed for electric opening/closing device according to the input/output signal of inverter.Pass through the intelligent monitoring case; the input/output signal of inverter can be collected in real time; control module judges the input/output signal of inverter; if undesirable input/output signal; it can control in time and be set to electric opening/closing device disconnection; to disconnect the connection of distributed generation resource and power grid, public power is protected by distributed generation resource malicious influences, not ensure that the stability of public power.
Description
Technical field
The present invention relates to interconnection technology fields, and in particular to a kind of intelligent monitoring case and its control method, distributed generation resource
Grid-connected system.
Background technique
It, can in the case where global warming, human ecological environment deteriorate, conventional energy resource is short and cause the situation of environmental pollution
The digging utilization of renewable new energy source is gradually by the attention of national governments and support.As China is to the popularization of new energy and can
The continuous development of renewable new energy source generation technology, distributed energy, which increasingly becomes, can not only solve load growth demand but also meet country
The ideal scheme for the environmentally protective theory advocated.
By taking photovoltaic power generation as an example, direct current energy is presently mainly converted solar energy by photovoltaic module and is delivered to inversion
Device, DC power supply inversion is AC power source by inverter, and is delivered to grid-connected batch meter, is sent out through the electric energy meter in batch meter
It is delivered to grid side after electricity statistics, is realized grid-connected.But works as undesirable power output signal in distributed energy and be transmitted to public affairs
When common-battery net side, large effect will certainly be caused to the operation conditions of public power, and be merely able in current grid-connected system
The generated energy of distributed energy is counted, and undesirable distributed generation resource output signal can not be monitored in time, leads to public affairs
The stability in common-battery source cannot ensure.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of intelligent monitoring case and its control method, distributed generation resource are grid-connected
System, to solve that undesirable distributed generation resource output signal can not be monitored in time, the stability of public power cannot be ensured
The problem of.
According in a first aspect, the embodiment of the invention provides a kind of intelligent monitoring case, including acquisition module and control module；
The acquisition module is connect with inverter, for acquiring the input/output signal of the inverter, and is sent to institute
State control module；
The control module is connect with the acquisition module, for according to the control point of the input/output signal of the inverter
Electric opening/closing device between cloth power supply and power grid is opened or closed.
Optionally, the input/output signal of the inverter includes DC voltage, DC current, dc power, alternating current
One of pressure, alternating current and AC power are a variety of.
It optionally, further include leakage circuit breakers and surge protection breaker.
Optionally, the acquisition module connects the leakage circuit breakers and the surge protection breaker, for acquiring
It states the working condition of leakage circuit breakers and the surge protection breaker and is sent to the control module.
Optionally, the acquisition module connects the electric opening/closing device, for acquiring the work of the electric opening/closing device
Make state and is sent to the control module.
Optionally, the working condition includes power supply state, switch state and back panel wiring state.
Optionally, the acquisition module connects the power grid, for acquiring the voltage of grid side, and is sent to the control
Module.
Optionally, the acquisition module is also used to detect grid-connected frequency, and is sent to the control module.
According to second aspect, the embodiment of the invention provides a kind of Grid-connected Distributed Generation Power System, including it is sequentially connected
Distributed generation resource, inverter, above-mentioned intelligent monitoring case and power grid, further include being set to the distributed generation resource and the power grid
Between electric opening/closing device.
According to the third aspect, the embodiment of the invention provides a kind of control methods of intelligent monitoring case, comprising:
Acquire the input/output signal of inverter；
The electric opening/closing device between distributed generation resource and power grid is controlled according to the input/output signal of the inverter
It is opened or closed.
Technical solution provided in an embodiment of the present invention, has the advantage that
Intelligent monitoring case provided in an embodiment of the present invention, including acquisition module and control module, acquisition module and inverter
Connection, for acquiring the input/output signal of inverter, and is sent to control module, and control module is connect with acquisition module, uses
In being opened or closed according to the electric opening/closing device between the input/output signal of inverter control distributed generation resource and power grid.
By the intelligent monitoring case, the input/output signal of inverter can be collected in real time, control module is to inverter
Input/output signal is judged, if undesirable input/output signal, can be controlled in time and is set to distributed generation resource and power grid
Between electric opening/closing device disconnect, to disconnect the connection of distributed generation resource and power grid, protect public power not by distribution
Power supply malicious influences ensure that the stability of public power, provide guarantee for the safe operation of Grid-connected Distributed Generation Power System.
In addition, control module can control electric opening/closing device if the input/output signal of the collected inverter of acquisition module is good
Closure, distributed generation resource is connected to power grid again, it is ensured that in the case where distributed generation resource signal is good, distributed generation resource and
When be connected to the grid, realize its normal operation.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 shows the structural schematic diagram of Grid-connected Distributed Generation Power System provided in an embodiment of the present invention.
Description of symbols:
1- distributed energy；2- inverter；31- acquisition module；32- control module；33- leakage circuit breakers；34-
Surge protection breaker；35- Surge Protector；36- disconnecting link；37- electric energy meter；38- concentrator；4- electric opening/closing device；
5- control centre.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
According in a first aspect, the embodiment of the invention provides a kind of intelligent monitoring casees, as shown in Figure 1, including acquisition module
31 and control module 32, acquisition module 31 connect with inverter 2, for acquiring the input/output signal of inverter 2, and be sent to
Control module 32；Control module 32 is connect with acquisition module 31, distributed for being controlled according to the input/output signal of inverter 2
Electric opening/closing device 4 between power supply 1 and power grid is opened or closed.
The general course of work are as follows: the DC power supply of distributed generation resource 1 is delivered to inverter 2, and inverter 2 turns DC power supply
It is changed to AC power source, and it is grid-connected to be delivered to power grid realization.Wherein, intelligent monitoring case is provided between inverter 2 and power grid, it should
Acquisition module 31 and control module 32 are provided in intelligent monitoring case, acquisition module 31 is responsible for the input and output of acquisition inverter 2
Signal, and it is sent to control module 32, control module 32 is set to distributed energy according to the control of the input/output signal of inverter 2
Electric opening/closing device 4 between source 1 and power grid is opened or closed, and then realizes disconnection or the company of distributed generation resource 1 and power grid
It connects.
Specifically, control module 32 judges the input/output signal of the inverter 2 received, when input and output are believed
Number be bad signal when, control module 32 can control electric opening/closing device 4 disconnection, i.e., disconnection distributed generation resource 1 and power grid it
Between connection.When input/output signal is good, control module 32 controls electric opening/closing device 4 and restores closed state, again will
Distributed generation resource 1 is connected to the grid.
By the intelligent monitoring case, the input/output signal of inverter 2 can be collected in real time, control module 32 is to inverter
2 input/output signal is judged, if undesirable input/output signal, can be controlled in time and is set to 1 He of distributed generation resource
Electric opening/closing device 4 between power grid disconnects, to disconnect the connection of distributed generation resource 1 and power grid, protect public power not by
1 malicious influences of distributed generation resource, ensure that the stability of public power, mention for the safe operation of 1 grid-connected system of distributed generation resource
It has supplied to ensure.In addition, control module 32 can be controlled if the input/output signal of the collected inverter 2 of acquisition module 31 is good
Electric opening/closing device 4 processed is closed, and is again connected to distributed generation resource 1 with power grid, it is ensured that in the good feelings of 1 signal of distributed generation resource
Under condition, distributed generation resource 1 is connected to the grid in time, realizes its normal operation.
In the present embodiment, any position between distributed generation resource 1 and power grid is can be set in electric opening/closing device 4.Example
Such as, electric opening/closing device 4 is set between distributed generation resource 1 and inverter 2, also can be set in inverter 2 and intelligent monitoring
Between case, it can also be set between intelligent monitoring case and power grid or inside intelligent monitoring case.When distributed generation resource 1 and power grid it
Between when being additionally provided with other elements, electric opening/closing device 4 can be with any position between other each elements, as long as disconnecting electricity
Dynamic switching device 4 can be realized the disconnection of distributed generation resource 1 and power grid, and closure electric opening/closing device 4 can be realized distributed electrical
The connection in source 1 and power grid, the present invention to the specific location of electric opening/closing device 4 with no restrictions.In the present embodiment, driven opening
Closing device 4 is preferably reclosing breaker.
As a kind of optional embodiment, in the present embodiment, control module 32 is by wireless communication in unit connection control
The heart 5 (i.e. backstage).That is, the real time status monitored can be sent to control centre via wireless communication unit by control module 32
5, so that the staff at control centre 5 knows the operation conditions of the system in time, and emergency is made for emergency situations and is arranged
It applies.Wherein, wireless communication unit is preferably GPRS module.
As a kind of optional embodiment, in the present embodiment, the input/output signal of inverter 2 includes DC voltage, straight
One of galvanic electricity stream, dc power, alternating voltage, alternating current and AC power are a variety of.For example, working as acquisition module 31
The alternating voltage of the output of inverter 2 is collected less than 175V or when being greater than 275V, electric opening/closing device 4 can control to disconnect, so that
Power grid is not influenced by bad voltage signal.It should be noted that 175V, 275V are customized two limiting values respectively, it can also
To be set as other values, such as 190V and 220V, i.e., when the alternating voltage that acquisition module 31 collects the output of inverter 2 is less than
190V or be greater than 220V when, can control electric opening/closing device 4 disconnect.
In addition, acquisition module 31 can be also used for itself working condition of acquisition inverter 2 and be sent to control module 32,
When control module 32 judges 2 operation irregularity of inverter, then it can control the disconnection of electric opening/closing device 4.
It further include leakage circuit breakers 33 and surge in intelligent monitoring case in the present embodiment as a kind of optional embodiment
Protective breaker 34.
Wherein, leakage circuit breakers 33 is the switch of energy auto-action when leakage current is more than predetermined value in circuit, is being distributed
Leakage circuit breakers 33 is set between formula power supply 1 and power grid, helps to disconnect distributed generation resource 1 and power grid automatically under drain conditions
Connection, protect power grid and entire circuit.In the present embodiment, it is preferable that leakage circuit breakers 33 can be set in intelligent monitoring case
Interior, between inverter 2 and electric opening/closing device 4 position.
Surge protection breaker 34 is generally grounded through Surge Protector 35, and Surge Protector 35 is a kind of lightning protection device, works as electricity
Because when external interference generates peak current or voltage suddenly, shunting can be connected in Surge Protector 35 in a very short period of time on road,
To avoid surge from damaging other equipment in circuit.Surge protection breaker 34 primarily serves short-circuit overload protection function
Can, when long-time on-state occurs in Surge Protector 35, power supply short circuit is caused, disconnects surge protection breaker 34 at this time,
Cutting earth-return circuit in time, to protect whole system.In the present embodiment, it is preferable that one end of surge protection breaker 34 connects
Between acquisition module 31 and power grid, the other end is grounded through Surge Protector 35.
As a kind of optional embodiment, in the present embodiment, acquisition module 31 connects leakage circuit breakers 33 and surge protection
Breaker 34, for acquiring the working condition of leakage circuit breakers 33 and surge protection breaker 34 and being sent to control module 32.
Wherein, leakage circuit breakers 33 and the working condition of surge protection breaker 34 generally comprise power supply state, switch shape
State and back panel wiring state.With the extension of use time, the line at 34 place of leakage circuit breakers 33 and surge protection breaker
Road or leakage circuit breakers 33 and surge protection breaker 34 itself easily break down, and the present embodiment is real-time by acquisition module 31
The power supply state and back panel wiring state of leakage circuit breakers 33 and surge protection breaker 34 are acquired, once there is exception, it can
Discovery in time, and it is sent to control centre 5 through control module 32, so that the staff at control centre 5 ties up in time
It repairs.Control module 32 can also control the disconnection of electric opening/closing device 4 in time simultaneously, protect whole system.In addition, passing through acquisition mould
Block 31 can acquire the switch state of leakage circuit breakers 33 and surge protection breaker 34 in time, know leakage convenient for control centre 5
Electrical circuit breakers 33 and surge protection breaker 34 are currently at closure or disconnect.
As a kind of optional embodiment, in the present embodiment, acquisition module 31 connects electric opening/closing device 4, for acquiring
The working condition of electric opening/closing device 4 is simultaneously sent to control module 32.Similarly, with the extension of use time, motor switch
4 place route of device itself easily breaks down, and the present embodiment acquires electric opening/closing device 4 by acquisition module 31 in real time
Working condition can find in time, and be sent to control centre 5 through control module 32, once occurring abnormal to control
Staff at center 5 repairs in time.
As a kind of optional embodiment, in the present embodiment, acquisition module 31 connects grid side, for acquiring grid side
Voltage, and it is sent to control module 32.As a result, when abnormal (such as power-off) occurs in grid side voltage, control module 32 can
Timely learning is simultaneously sent to control centre 5.
As a kind of optional embodiment, in the present embodiment, acquisition module 31 is also used to detect grid-connected frequency, and is sent to
Control module 32.For example, collected grid-connected frequency is sent to control module 32 by acquisition module 31, in control module 32 combines
The frequency reference of portion's storage judges collected grid-connected frequency, if abnormal, fault message is sent to control in time
Center 5 processed, so that staff takes urgent measure reply.For example, the frequency reference range of 32 storage inside of control module
For 47.5Hz-52.5Hz, when collected grid-connected frequency values are greater than 52.5Hz or are less than 47.5Hz, then to control centre 5
Issue warning information.
As a kind of optional embodiment, in the present embodiment, acquisition module 31 is also used to acquire each portion in intelligent monitoring case
The temperature of part, when the temperature of each component is higher than the temperature reference value stored in control module 32, then to the transmission early warning of control centre 5
Information, meanwhile, control module 32 can also control the disconnection of electric opening/closing device 4, to protect whole system.
In the present embodiment, disconnecting link 36, electric energy meter 37 and concentrator 38,37 He of electric energy meter are additionally provided in intelligent monitoring case
Concentrator 38 is all connected to grid side, and disconnecting link 36 can be set between electric energy meter 37 and acquisition module 31.
According to second aspect, the embodiment of the invention provides a kind of Grid-connected Distributed Generation Power System, sequentially connected distribution
Formula power supply 1, inverter 2, above-mentioned intelligent monitoring case and power grid further include being set to the distributed generation resource 1 and the power grid
Between electric opening/closing device 4.
As a kind of optional embodiment, in the present embodiment, distributed generation resource 1 includes solar energy, wind energy, water energy, wave
Can, any one in tide energy.
According to the third aspect, the embodiment of the invention provides a kind of control methods of intelligent monitoring case, comprising the following steps:
Step S11, the input/output signal of inverter is acquired.Preferably, the input/output signal of inverter includes direct current
One of voltage, DC current, dc power, alternating voltage, alternating current and AC power are a variety of.
Step S12, the motor switch between distributed generation resource and power grid is controlled according to the input/output signal of inverter to fill
That sets is opened or closed.
For example, can control motor switch when the alternating voltage for collecting inverter output is less than 175V or is greater than 275V
Device disconnects, so that power grid is not influenced by bad voltage signal.It should be noted that 175V, 275V are customized two respectively
A limiting value may be set to be other values, such as 190V and 220V, i.e., when acquisition module collects the exchange of inverter output
When voltage is less than 190V or is greater than 220V, electric opening/closing device can control to disconnect.
By the above method, the input/output signal of inverter can be collected in real time, and the input and output of inverter are believed
Number judged, if undesirable input/output signal, can control in time be set to it is electronic between distributed generation resource and power grid
Switching device disconnects, and to disconnect the connection of distributed generation resource and power grid, protects public power not by the pernicious shadow of distributed generation resource
It rings, ensure that the stability of public power, provide guarantee for the safe operation of Grid-connected Distributed Generation Power System.In addition, if adopting
The input/output signal of the inverter collected is good, can control electric opening/closing device closure, again by distributed generation resource and electricity
Net connection, it is ensured that in the case where distributed generation resource signal is good, distributed generation resource is connected to the grid in time, realizes its normal fortune
Row.
Optionally, the control method of intelligent monitoring case provided in an embodiment of the present invention further include: acquisition leakage circuit breakers and
The working condition of surge protection breaker, according to the working condition of collected leakage circuit breakers and surge protection breaker, control
Electric opening/closing device processed is opened or closed, and the step of reporting control centre.
Optionally, the control method of intelligent monitoring case provided in an embodiment of the present invention further include: acquisition electric opening/closing device
Working condition, and its working condition is judged, if the step of being abnormal, reporting control centre.
Optionally, the control method of intelligent monitoring case provided in an embodiment of the present invention further include: the voltage of grid side is acquired,
And the voltage of grid side is judged, if being abnormal, control the step that electric opening/closing device disconnects and reports control centre
Suddenly.
Optionally, the control method of intelligent monitoring case provided in an embodiment of the present invention further include: acquire grid-connected frequency, and base
Grid-connected frequency is judged in pre-stored frequency reference, if being abnormal, electric opening/closing device is controlled and disconnects simultaneously
The step of reporting control centre.
Optionally, the control method of intelligent monitoring case provided in an embodiment of the present invention further include: in acquisition intelligent monitoring case
The temperature of each component controls pre-stored temperature reference value when the temperature of each component is higher than, then it is disconnected to control electric opening/closing device
It opens and sends warning information to control centre.
Although being described in conjunction with the accompanying the embodiment of the present invention, those skilled in the art can not depart from the present invention
Spirit and scope in the case where various modifications and variations can be made, such modifications and variations are each fallen within by appended claims institute
Within the scope of restriction.
Claims (10)
1. a kind of intelligent monitoring case, which is characterized in that including acquisition module and control module；
The acquisition module is connect with inverter, for acquiring the input/output signal of the inverter, and is sent to the control
Molding block；
The control module is connect with the acquisition module, distributed for being controlled according to the input/output signal of the inverter
Electric opening/closing device between power supply and power grid is opened or closed.
2. intelligent monitoring case according to claim 1, which is characterized in that the input/output signal of the inverter includes straight
One of galvanic electricity pressure, DC current, dc power, alternating voltage, alternating current and AC power are a variety of.
3. intelligent monitoring case according to claim 1, which is characterized in that further include leakage circuit breakers and surge protection open circuit
Device.
4. intelligent monitoring case according to claim 3, which is characterized in that the acquisition module connects the leakage circuit breakers
With the surge protection breaker, the working condition for acquiring the leakage circuit breakers and the surge protection breaker is concurrent
It send to the control module.
5. intelligent monitoring case according to claim 1, which is characterized in that the acquisition module connects the motor switch dress
It sets, for acquiring the working condition of the electric opening/closing device and being sent to the control module.
6. intelligent monitoring case according to claim 4 or 5, which is characterized in that the working condition includes power supply state, opens
Off status and back panel wiring state.
7. intelligent monitoring case according to claim 1, which is characterized in that the acquisition module connects the power grid, is used for
The voltage of grid side is acquired, and is sent to the control module.
8. intelligent monitoring case according to claim 1, which is characterized in that the acquisition module is also used to detect grid-connected frequency
Rate, and it is sent to the control module.
9. a kind of Grid-connected Distributed Generation Power System, which is characterized in that including sequentially connected distributed generation resource, inverter, right
It is required that intelligent monitoring case and power grid described in 1-8 any one, further include being set to the distributed generation resource and the power grid
Between electric opening/closing device.
10. a kind of control method of intelligent monitoring case characterized by comprising
Acquire the input/output signal of inverter；
The disconnection of the electric opening/closing device between distributed generation resource and power grid is controlled according to the input/output signal of the inverter
Or closure.
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| CN201811213451.8A CN109149650A (en) | 2018-10-17 | 2018-10-17 | Intelligent monitoring case and its control method, Grid-connected Distributed Generation Power System |
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| CN201811213451.8A CN109149650A (en) | 2018-10-17 | 2018-10-17 | Intelligent monitoring case and its control method, Grid-connected Distributed Generation Power System |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187735A (en) * | 2013-04-24 | 2013-07-03 | 电子科技大学 | Bidirectional intelligent gateway device for distributed new energy grid connection |
| CN103323711A (en) * | 2013-06-09 | 2013-09-25 | 东北大学 | Low voltage grid-connected detection device and method of distributed new energy power generation system |
| CN103399223A (en) * | 2013-07-24 | 2013-11-20 | 东北大学 | New energy power generation system grid-connection intelligent detection and warning system and new energy power generation system grid-connection intelligent detection and warning method |
| CN106549411A (en) * | 2016-09-22 | 2017-03-29 | 国网山东省电力公司青岛供电公司 | Distributed power source grid-connecting apparatus |
| CN208939598U (en) * | 2018-10-17 | 2019-06-04 | 浙江正泰仪器仪表有限责任公司 | Intelligent monitoring case and Grid-connected Distributed Generation Power System |
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2018
- 2018-10-17 CN CN201811213451.8A patent/CN109149650A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187735A (en) * | 2013-04-24 | 2013-07-03 | 电子科技大学 | Bidirectional intelligent gateway device for distributed new energy grid connection |
| CN103323711A (en) * | 2013-06-09 | 2013-09-25 | 东北大学 | Low voltage grid-connected detection device and method of distributed new energy power generation system |
| CN103399223A (en) * | 2013-07-24 | 2013-11-20 | 东北大学 | New energy power generation system grid-connection intelligent detection and warning system and new energy power generation system grid-connection intelligent detection and warning method |
| CN106549411A (en) * | 2016-09-22 | 2017-03-29 | 国网山东省电力公司青岛供电公司 | Distributed power source grid-connecting apparatus |
| CN208939598U (en) * | 2018-10-17 | 2019-06-04 | 浙江正泰仪器仪表有限责任公司 | Intelligent monitoring case and Grid-connected Distributed Generation Power System |
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