CN107546770A - A kind of micro-capacitance sensor active power distribution equipment and control method - Google Patents
A kind of micro-capacitance sensor active power distribution equipment and control method Download PDFInfo
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Abstract
The present invention discloses a kind of micro-capacitance sensor active power distribution equipment and control method, including sensor assembly, microgrid control module and controllable type distributed power source, the controllable type distributed power source is connected to described single-phase or three-phase microgrid ac bus by breaker, and it is connected by the first signal transmission passage with the microgrid control module, the sensor assembly is connected by secondary signal transmission channel with the microgrid control module, the sensor assembly gathers the electrical parameter at the grid entry point, and the electrical parameter is fed back to by the microgrid control module by the signal transmission passage, and adjust controllable type distributed power source generated output and power generation mode, micro-capacitance sensor self-energy is maintained to generate power for their own use, ensure the matching of hair electricity and balance, realize active distribution.
Description
Technical field
The present invention is to belong to micro-capacitance sensor control field in power system, is mainly concerned with a kind of micro-capacitance sensor active power distribution equipment
And control method.
Background technology
In recent years, national economy is fast-developing, and electricity needs sustainable growth, fossil energy is progressively exhausted, and environmental pollution is asked
Inscribe increasingly serious, the clean and effective of the energy is using being increasingly taken seriously.Traditional passive power distribution network can not meet that environmental protection will
Ask and largely the requirement of electric network reliability and the quality of power supply caused by distributed power source, following power network need planning and designing into one kind
Green, mode efficiently, reliable, intelligent can meet that distributed power source especially can be again to adapt to the technical need in future
The scale access of the raw energy.To regenerative resource digestion capability deficiency, rack weakness, an Automated water in conventional electrical distribution net
The problems such as flat not high and scheduling mode falls behind will not exist in active distribution network.
Active distribution has good compatibility to green energy resource, and efficiently can have assets using oneself, has reflected following intelligence
The development trend of energy power network.Active distribution can combine the various distributed energies of control（DG, controllable burden, energy storage, demand side pipe
Reason etc.）, without changing existing distribution net work structure, increase receiving ability, lifting power distribution network assets of the power distribution network to regenerative resource
Utilization rate, delay the upgrading of power distribution network to invest, and improve power network the quality of power supply and power supply reliability.It is traditional passive
Consumption pattern of the power distribution network to distributed energy is single, when low capacity controllable type distributed power source accesses low and medium voltage distribution network
Afterwards, because on node and feeder line load level it is relatively low, distributed power source can not be caused sharp by artificial or automatically control and be adjusted
Frequently occurred with various phenomenons such as rate is low, grid entry point power swing, quality of power supply differences.
Such as in base station micro-capacitance sensor application field, because the main generating source of micro-capacitance sensor is using new energy such as photovoltaic or wind-force
Source, and most base station roof areas are adjusted at present, using conventional photovoltaic interconnection technology, combining inverter power output 3-5KW, and
Based on traditional single-phase or three-phase grid-connected inverter device, because three-phase inverter is using traditional SVPWM controls, thirdly conversely
Supply current requires unanimously, therefore DC-to-AC converter is less efficient, if a certain phase, two-phase or three-phase generation of electricity by new energy power
Less than load realtime power, then can opposite tide be transported to power network, be difficult to realize and generate electricity and the matching of the source lotus of different phase loads.And
In engineer applied, due to each phase load of the more difficult accurate judgement of installer, even if interim measurement load, is accurately installed single-phase
DC-to-AC converter is to the working condition one that on the tie point of a certain phase, can not also ensure the short-term standby of air-conditioning even load or operation
Directly with being consistent during measurement；Meanwhile base station dc source and load also can there is a situation where to increase or decrease successively with application,
It will also result in the change being supported between out of phase.Therefore need to solve under complex engineering application conditions, fluctuating load condition
Matching problem under the conditions of lower and fluctuation generation of electricity by new energy, so as to improve the contribution margin ratio of assets investment and source lotus equipment more
Efficient utilization rate, therefore a kind of active power distribution equipment being suitable in micro-capacitance sensor application seems and is even more important.
The content of the invention
Therefore, the present invention provides a kind of micro-capacitance sensor active power distribution equipment and control method, according to four-quadrant work(at grid entry point
Rate parameter and direction of tide, micro-capacitance sensor generated output, power generation mode and load condition are adjusted, maintain micro-capacitance sensor self-energy
Generate power for their own use, ensure the matching of hair electricity and balance, realize active distribution.
According to an aspect of the present invention, it is proposed that a kind of micro-capacitance sensor active power distribution equipment, including sensor assembly, microgrid
Control module and controllable type distributed power source, controllable type distributed power source are connected to described single-phase or three-phase by breaker
Microgrid ac bus, and be connected by the first signal transmission passage with microgrid control module, sensor assembly passes through the second letter
Number transmission channel is connected with microgrid control module, and sensor assembly gathers the electrical parameter information at the grid entry point, and passes through the
Binary signal transmission channel can according to the regulation of electrical parameter information by electrical parameter feedback of the information to microgrid control module, microgrid control module
Controlling type distributed power source.
Preferably, controllable type distributed power source can be one or several combinations of following power supply：
- internal combustion unit power generating source；
- gas turbine power generation power supply；
- miniature hydro-power generation power supply；
- wind-power electricity generation power supply；
- solar energy power generating power supply；
- fuel cell generator power；
- photo-thermal power generation power supply；And
- thermo-electric generation power supply.
Preferably, the output four-quadrant power of controllable type distributed power source can be adjusted.
Preferably, controllable type distributed power source can be single-phase of generating electricity unit or three-phase generation unit.It is highly preferred that
Single-phase of generating electricity unit exports apparent energy 1 ~ 10KVA of scope, three-phase generation unit output apparent energy 3 ~ 20KVA of scope, output
0 ~ 10KV of AC voltage range.
Preferably, controllable type distributed power source can be the combined type two-phase and three being made up of multiple single-phase of generating electricity units
Phase generator unit.
It is further preferred that the output voltage of controllable type distributed power source can controllably be operated in three-phase imbalance pattern,
And its each single-phase power output can individually controlled adjustment and keep the power output of other each phases constant；It is or controllable
The output current of formula distributed power source can controllably be operated in three-phase imbalance pattern, and its each single-phase power output can
Independent controlled adjustment and keep the power output of other each phases constant；Or the output voltage energy of controllable type distributed power source
It is enough to be controllably operated in three-phase equilibrium pattern, and three-phase power output is controlled regulation according to same ratio simultaneously, its is each
Single-phase power output can not independent controlled adjustment.
In addition, the output current of controllable type distributed power source can controllably be operated in three-phase equilibrium pattern, and three-phase
Power output is controlled regulation according to same ratio simultaneously, and its each single-phase power output can not independent controlled adjustment.
Preferably, the sensor assembly includes CT current sensors, and every in the three-phase line of the grid entry point
At least a set of current sensor is all installed in phase line.
Preferably, CT current sensors are power current sensor, and have the passive electrical for preventing that second siding ring from opening a way
Road device or active circuit arrangement.
Preferably, CT current sensors are power current sensor, and in the secondary side line of power current sensor
The fixed at least resistance in parallel of circle output, prevents secondary side open circuit from producing high pressure.
Preferably, sensor assembly includes CT current sensors and VT voltage sensors, and microgrid control module passes through sensing
Device module gathers voltage and current vector at the grid entry point in real time, calculates four-quadrant performance number in real time, and according to four-quadrant work(
Rate value, adjust the generated output and/or power generation mode of controllable type distributed power source.
Preferably, microgrid control module can be built in controllable type distributed power source.
Preferably, the first signal transmission passage and secondary signal transmission channel can use wired communication mode or channel radio
Letter mode.
According to another aspect of the present invention, there is provided a kind of control method of active distribution for micro-grid system,
Including：
Step a. detects the electrical parameter information of grid entry point；
Step b. is according to the electrical parameter information, the generated output of regulation controllable type distributed power source (1110) and/or generating
Pattern.
Preferably, electrical parameter information can be one or more of combinations of following information：
- voltage vector（V）；
- current phasor（I）；
- positive active power（P1）；
- reverse active power（P2）；
- positive reactive power（P3）；And
- reverse reactive power（P4）.
Preferably, electrical parameter information can also include direction of tide information.
Preferably, always according to total power load power information of micro-grid system, the hair of regulation controllable type distributed power source
Electrical power and/or power generation mode.
Preferably, when controllable type distributed power source is two-phase or three-phase generation unit, and output voltage or electric current can
When being controllably operated in three-phase imbalance pattern, always according to the electrical parameter information, the negative of controllable type distributed power source is reduced
Few phase mains power output is carried, the phase mains power that the load of increase controllable type distributed power source is big exports.
Preferably, in addition to detection public electric wire net power on/off status information；And when the public electric wire net and micro-capacitance sensor system
When system disconnects, regulation controllable type distributed power source switches to the pattern of being incorporated into the power networks；When public electric wire net and micro-grid system close
When, regulation controllable type distributed power source switches to islet operation pattern.
Micro-capacitance sensor active power distribution equipment provided by the invention and control method, the various distributed energies of control can be combined（DG, can
Control load, energy storage, dsm etc.）, without changing existing distribution side structure, increase receiving of the power distribution network to regenerative resource
Ability, lifted power distribution network assets utilization rate, reduce power distribution network upgrading investment, and improve power network the quality of power supply and
Power supply reliability.
Brief description of the drawings
Fig. 1 is the micro-capacitance sensor active power distribution equipment system diagram according to the specific embodiment of the present invention.
Fig. 2 is that power current sensor connects in the micro-capacitance sensor active power distribution equipment according to the specific embodiment of the present invention
Line chart.
Fig. 3 is to be applied according to the micro-capacitance sensor active power distribution equipment of the specific embodiment of the present invention in micro-grid system
Figure.
Label declaration
The public electric wire net of 1000 micro-grid system 2000
The microgrid of 1200 energy-storage system 1300 loads
The 1400 single-phase or grid entry points of three-phase microgrid ac bus 1500
The microgrid control module of 1110 controllable type distributed power source 1120
The signal transmission passage of 1130 sensor assembly 1,140 first
The secondary signal transmission channel of 1150 breaker 1160
The VT voltage sensors of 1131 CT current sensors 1132
Embodiment
In order to more specifically describe the present invention, below in conjunction with illustrations, to the technology in the embodiment of the present application
Scheme is clearly and completely described, it is clear that and described embodiment is only some embodiments of the present application, rather than entirely
The embodiment in portion.Based on embodiments herein, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, belong to the scope of the application protection.
As shown in figure 1, it is the system diagram of micro-capacitance sensor active power distribution equipment according to an embodiment of the invention.Common electrical
Net 2000 includes power supply buses, distribution transformer and distribution bus.The distribution of micro-grid system 1000 and public electric wire net 2000
Bus is connected.Micro-grid system 1000 include micro-capacitance sensor active power distribution equipment 1100, grid entry point 1500, energy-storage system 1200,
Microgrid load 1300 and single-phase or three-phase microgrid ac bus 1400.Microgrid load 1300 and energy-storage system 1200 respectively with list
Mutually or three-phase microgrid ac bus 1400 is connected.Further, micro-capacitance sensor active power distribution equipment 1100 includes controllable type point
Cloth power supply 1110, microgrid control module 1120, sensor assembly 1130；Controllable type distributed power source 1110 passes through the first letter
Number transmission channel 1140 is connected with microgrid control module 1120, and microgrid control module 1120 also passes through secondary signal transmission channel
1160 are connected with sensor assembly 1130；Meanwhile controllable type distributed power source 1110 by breaker 1150 with it is single-phase or
Three-phase microgrid ac bus 1400 is connected.The single-phase or three-phase microgrid ac bus 1400 of micro-grid system 1100 is by grid-connected
Point 1500 is connected with the distribution bus of public electric wire net 2000.
Sensor assembly 1130 gathers the electrical parameter information at grid entry point 1500, and passes through secondary signal transmission channel
1160 by electrical parameter feedback of the information to microgrid control module 1120, and microgrid control module 1120 is according to the electrical parameter information received
Controllable type distributed power source 1110 is adjusted, specifically, adjusts its generated output or power generation mode, or adjust its generating simultaneously
Power and power generation mode.
Preferably, controllable type distributed power source 1110 can be one or several combinations of following power supply：
- internal combustion unit power generating source；
- gas turbine power generation power supply；
- miniature hydro-power generation power supply；
- wind-power electricity generation power supply；
- solar energy power generating power supply；
- fuel cell generator power；
- photo-thermal power generation power supply；And
- thermo-electric generation power supply.
With reference to shown in Fig. 3, controllable type distributed power source 1110 includes PV photovoltaic battery panels, three-phase photovoltaic inverter, and
It is connected by RS485 interfaces with microgrid control module 1120.
In a preferred embodiment, the output four-quadrant power of controllable type distributed power source 1110 is to adjust
's.In addition, controllable type distributed power source 1110 can also be single-phase of generating electricity unit or three-phase generation unit.
In a further advantageous embodiment, controllable type distributed power source 1110 can be by multiple single-phase of generating electricity unit structures
Into combined type two-phase and three-phase generation unit, in that case it is preferable that the controllable type distributed power source 1110
Output voltage can controllably be operated in three-phase imbalance pattern, and its each single-phase power output can individually controlled adjustment and
Keep the power output of other each phases constant.So-called " three-phase imbalance pattern ", refer to that each phase output voltage is different in amplitude
Or its phase difference is not 120 °, also or is had both at the same time.
Or when controllable type distributed power source 1110 is the combined type two-phase and three that is made up of multiple single-phase of generating electricity units
During phase generator unit, it is preferable that the output current of the controllable type distributed power source 1110 can controllably be operated in three-phase
Uneven pattern, and its each single-phase power output can individually controlled adjustment and keep the power output of other each phases constant.
So-called " three-phase imbalance pattern ", refer to that i.e. each phase output current different or its phase difference in amplitude is not 120 °, it is also or simultaneous
And there is it.
Or when controllable type distributed power source 1110 is the combined type two-phase and three that is made up of multiple single-phase of generating electricity units
During phase generator unit, it is preferable that the output voltage of the controllable type distributed power source 1110 can controllably be operated in three-phase
Balanced mode, and three-phase power output is controlled regulation according to same ratio simultaneously, its each single-phase power output can not
Independent controlled adjustment.So-called " three-phase equilibrium pattern ", refer to that i.e. output voltage is identical in amplitude or its phase difference is 120 °, also
Or have both at the same time.
Or when controllable type distributed power source 1110 is the combined type two-phase and three that is made up of multiple single-phase of generating electricity units
During phase generator unit, it is preferable that the output current of the controllable type distributed power source 1110 can controllably be operated in three-phase
Balanced mode, and three-phase power output is controlled regulation according to same ratio simultaneously, its each single-phase power output can not
Independent controlled adjustment.So-called " three-phase equilibrium pattern ", refer to that i.e. output current is identical in amplitude or its phase difference is 120 °, also
Or have both at the same time.
Obviously, no matter controllable type distributed power source 1110 is operated in three-phase imbalance pattern, and it is equal to be still operated in three
Weighing apparatus pattern, micro-capacitance sensor active power distribution equipment provided by the invention can be adapted to well.
In a further advantageous embodiment, with reference to shown in Fig. 2, sensor assembly 1130 includes CT current sensors 1131,
And at least a set of current sensor is all installed in the three-phase line of the grid entry point 1500 in every phase line.Preferably, CT electricity
Flow sensor 1131 is power current sensor, and has the passive circuit device or active circuit for preventing that second siding ring from opening a way
Device；Or the CT current sensors 1131 are power current sensor, and in the power current sensor secondary side
The fixed at least resistance in parallel of coil output, prevents secondary side open circuit from producing high pressure.Such safety for designing the product for being
Property is higher, largely avoid maintenance, user or maintenance, installation personnel are caused using caused high pressure during micro-capacitance sensor
Danger of personal injury.
In a further advantageous embodiment, sensor assembly 1160 includes CT current sensors 1131 and VT voltage sensors
1132, microgrid control module 1120 gathers voltage and current vector at grid entry point 1500 in real time by sensor assembly 1160, real
When calculate four-quadrant performance number, and according to four-quadrant performance number, the generated output of regulation controllable type distributed power source 1110 and/
Or power generation mode.
In a further advantageous embodiment, microgrid control module 1120 can be built in controllable type distributed power source 1110.
In addition, the first signal transmission passage 1140 and secondary signal transmission channel 1160 can use wired communication mode or radio communication
Mode.These all provide possibility for more compact or more flexible product design.
On the other hand, further combined with Fig. 1, Fig. 3, for the control method of the active distribution of micro-grid system 1000, including such as
Lower step：
Step a. detects the electrical parameter information of grid entry point 1500；
Step b. according to detected electrical parameter information, the generated output of regulation controllable type distributed power source 1110 and/or
Power generation mode.
Preferably, electrical parameter information can be one or more of combinations of following information：
- voltage vector（V）；
- current phasor（I）；
- positive active power（P1）；
- reverse active power（P2）；
- positive reactive power（P3）；And
- reverse reactive power（P4）.
Preferably, electrical parameter information also includes direction of tide information.
Preferably, controllable type distributed electrical can also be adjusted according to total power load power information of micro-grid system 1000
The generated output and/or power generation mode in source 1110.
Preferably, when controllable type distributed power source 1110 is two-phase or three-phase generation unit, and output voltage or electric current
When can controllably be operated in three-phase imbalance pattern, step b also includes：According to electrical parameter information, controllable type distribution is reduced
The phase mains power that the load of formula power supply 1110 is few exports, and increases the big phase line of the load of the controllable type distributed power source 1110
Power output.
Preferably, the step a also includes the detection power on/off status information of public electric wire net 2000；The step b also includes
When public electric wire net 2000 and micro-grid system 1000 disconnect, adjust the controllable type distributed power source 1110 switch to it is grid-connected
Operational mode；When public electric wire net 2000 and micro-grid system 1000 close, regulation controllable type distributed power source 1110 switches
To islet operation pattern.
In another specific embodiment, a kind of control method of active distribution for micro-grid system, including it is following
Step：
Step a. microgrids control module 1120 detects the three-phase four-quadrant power of grid entry point 1500 by sensor assembly 1130, i.e.,
Voltage (V) and electric current（I）Vector, by the way that positive active power is calculated（P1）, reverse active power（P2）, positive idle work(
Rate（P3）With reverse reactive power（P4）, in addition to the direction of tide information of grid entry point 1500；
Step b. is according to three-phase four-quadrant power information, and direction of tide information, regulation controllable type distributed power source 1110
Generated output and/or power generation mode, specific regulative mode is as described below：
When reverse active-power P 2>" setting value 1 ", " scope of setting value 1 " is that 0 ~ 20KW is adjustable, and microgrid control module is by following
Priority is regulated and controled：
Priority 1. is two-phase or three-phase generation unit when controllable type distributed power source 1110, and output voltage or electric current can
Three-phase imbalance pattern is controllably operated in, microgrid control module 1120 adjusts distributed power source and reduces the few phase mains power of load
Output, increase load big phase mains power output；When controllable type distributed power source 1110 is single-phase of generating electricity unit, single-phase of generating electricity
Unit switches to the maximum phase line of load by gate-controlled switch, when controllable type distributed power source 1110 is two-phase or three-phase generation
Unit, and output voltage or electric current can controllably be operated in three-phase equilibrium pattern, jump directly to priority 2；
Priority 2. increases corresponding single-phase, two-phase or the load of three-phase microgrid, consumes the excess energy of micro-grid system 1000, regulation
If P2 afterwards>" setting value 1 ", skip to priority 3；
Priority 3 is two-phase or three-phase generation unit when controllable type distributed power source 1110, and output voltage or electric current can
Three-phase equilibrium pattern is controllably operated in, the three phase power that controllable type distributed power source 1110 is reduced by same ratio exports,
When controllable type distributed power source 1110 is single-phase of generating electricity unit, the power output of controllable type distributed power source 1110 is reduced；
As voltage V<" during setting value 2 ", " scope of setting value 2 " is 0 ~ 100 adjustable, and microgrid control module 1120 disconnects grid entry point
Breaker at 1500, and orphan is switched to by the first signal transmission passage 1140, regulation controllable type distributed power source 1110
Island operational mode,
As voltage V>" during setting value 2 ", microgrid control module 1120 adjusts controllable type by the first signal transmission passage 1140
Distributed power source 1110 switches to the pattern of being incorporated into the power networks, and closes the breaker at grid entry point 1500.
By above-mentioned control method, the generated output, power generation mode and load condition of micro-grid system 1000 are adjusted
Section, maintain micro-capacitance sensor self-energy to generate power for their own use, ensure the matching of hair electricity and balance, realize active distribution.
In more detail, as shown in figure 3, illustrating micro-capacitance sensor active power distribution equipment according to an embodiment of the invention in micro- electricity
Application drawing in net system, the micro-capacitance sensor active power distribution equipment include：Microgrid control module, PV (photovoltaic battery panel), three-phase light
Inverter, sensor assembly are lied prostrate, PV (photovoltaic battery panel) outputs are connected to three-phase photovoltaic inverter input, three-phase photovoltaic inversion
Device is connected to three-phase microgrid ac bus by breaker, and three-phase photovoltaic inverter controls mould by RS485 order wires and microgrid
Block connects, voltage and current at sensor assembly collection grid entry point.
As shown in figure 3, current sensor is power current sensor in sensor assembly, as shown in Fig. 2 current sensor
Secondary side fixes one resistance R of parallel connection, prevents secondary side open circuit from producing high pressure, secondary side outlet terminal is connected to micro- by cable
Net control module.
As shown in figure 3, three-phase photovoltaic inverter exports for asymmetric electric current, i.e., photovoltaic DC-to-AC converter three-phase output current is big
It is small can be with different.
As shown in figure 3, microgrid control module is placed on three-phase photovoltaic inverter.
With reference to Fig. 3, a kind of control method of micro-capacitance sensor active power distribution equipment according to an embodiment of the invention, including
The following steps：
(1) microgrid control module detects grid entry point three-phase four-quadrant power, the i.e. positive active power of A phases by sensor assembly
（PA1）, A is conversely to active power（PA2）, the positive reactive power of A phases（PA3）With A phase inverse direction reactive powers（PA4）, B
Mutually positive active power（PB1）, B is conversely to active power（PB2）, the positive reactive power of B phases（PB3）With B phases inverse direction without
Work(power（PB4）, the positive active power of C phases（PC1）, C is conversely to active power（PC2）, the positive reactive power of C phases（PC3）With
C phase inverse direction reactive powers（PC4）, user's setting " setting value=1000W "；
（2）PA2=2000>1000, PB2=700, PC2=700, microgrid control module are regulated and controled by following priority：
Priority 1:Three-phase photovoltaic inverter exports for asymmetric electric current, and microgrid control module passes through Rs485 communication adjustments three
Phase photovoltaic DC-to-AC converter B phases and C phase power outputs respectively increase 300W, PB2=1000 after regulation, PC=1000, while adjust three-phase light
Lie prostrate inverter A phases power output and reduce 600W, PA2=1400 after adjustment, still above user setting value 1000W, into priority
2；
Priority 2：Increase the load of A phases microgrids, such as charge the battery or opens illumination, as increase load after PA2 still above setting
Definite value 1000W, into priority 3；
Priority 3：Adjust three-phase photovoltaic inverter A phases power output and reduce Px, Px=PA2-1000；
（3）When microgrid control module detects that public electric wire net powers off by sensor assembly, microgrid control module disconnects grid entry point
（Breaker, and being communicated by Rs485, regulation three-phase photovoltaic inverter switch to islet operation pattern, when detecting public electric wire net
When having electricity, for microgrid control module by Rs485, regulation three-phase photovoltaic inverter switches to the pattern of being incorporated into the power networks, and closes grid-connected
Point breaker.
Claims (21)
- A kind of 1. micro-capacitance sensor active power distribution equipment（1100）, it is characterised in that including sensor assembly（1130）, microgrid control mould Block（1120）With controllable type distributed power source（1110）, the controllable type distributed power source（1110）Pass through breaker （1150）It is connected to described single-phase or three-phase microgrid ac bus（1400）, and pass through the first signal transmission passage（1140）With The microgrid control module（1120）Connection, the sensor assembly（1130）Pass through secondary signal transmission channel（1160）With institute State microgrid control module (1120) connection, the sensor assembly（1130）Gather the grid entry point（1500）The electrical parameter letter at place Breath, and pass through the secondary signal transmission channel（1160）By the electrical parameter feedback of the information to the microgrid control module （1120）, the microgrid control module（1120）The controllable type distributed power source is adjusted according to the electrical parameter information （1110）.
- A kind of 2. micro-capacitance sensor active power distribution equipment as claimed in claim 1（1100）, it is characterised in that described controllable type Distributed power source（1110）Can be one or several combinations of following power supply：- internal combustion unit power generating source；- gas turbine power generation power supply；- miniature hydro-power generation power supply；- wind-power electricity generation power supply；- solar energy power generating power supply；- fuel cell generator power；- photo-thermal power generation power supply；And- thermo-electric generation power supply.
- A kind of 3. micro-capacitance sensor active power distribution equipment as claimed in claim 1（1100）, it is characterised in that the controllable type point Cloth power supply（1110）Output four-quadrant power can adjust.
- A kind of 4. micro-capacitance sensor active power distribution equipment as claimed in claim 3（1100）, it is characterised in that the controllable type point Cloth power supply（1110）For single-phase of generating electricity unit or three-phase generation unit.
- A kind of 5. micro-capacitance sensor active power distribution equipment as claimed in claim 3（1100）, it is characterised in that the controllable type point Cloth power supply（1110）For the combined type two-phase and three-phase generation unit being made up of multiple single-phase of generating electricity units.
- A kind of 6. micro-capacitance sensor active power distribution equipment as claimed in claim 5（1100）, it is characterised in that the controllable type point Cloth power supply（1110）Output voltage can controllably be operated in three-phase imbalance pattern, and its each single-phase power output Can individually controlled adjustment and keep the power output of other each phases constant.
- A kind of 7. micro-capacitance sensor active power distribution equipment as claimed in claim 5（1100）, it is characterised in that the controllable type point Cloth power supply（1110）Output current can controllably be operated in three-phase imbalance pattern, and its each single-phase power output Can individually controlled adjustment and keep the power output of other each phases constant.
- A kind of 8. micro-capacitance sensor active power distribution equipment as claimed in claim 5（1100）, it is characterised in that the controllable type point Cloth power supply（1110）Output voltage can controllably be operated in three-phase equilibrium pattern, and three-phase power output is simultaneously according to phase Regulation is controlled in proportion, and its each single-phase power output can not independent controlled adjustment.
- A kind of 9. micro-capacitance sensor active power distribution equipment as claimed in claim 5（1100）, it is characterised in that the controllable type point Cloth power supply（1110）Output current can controllably be operated in three-phase equilibrium pattern, and three-phase power output is simultaneously according to phase Regulation is controlled in proportion, and its each single-phase power output can not independent controlled adjustment.
- A kind of 10. micro-capacitance sensor active power distribution equipment as claimed in claim 1（1100）, it is characterised in that the sensor die Block（1130）Including CT current sensors (1131), and in the grid entry point（1500）Three-phase line in all pacify in every phase line It is filled to less a set of current sensor.
- A kind of 11. micro-capacitance sensor active power distribution equipment as claimed in claim 10（1100）, it is characterised in that the CT electric currents pass Sensor (1131) is power current sensor, and has the passive circuit device or active circuit dress for preventing that second siding ring from opening a way Put.
- A kind of 12. micro-capacitance sensor active power distribution equipment as claimed in claim 10（1100）, it is characterised in that the CT electric currents pass Sensor (1131) is power current sensor, and exports fixed parallel connection at least in the power current sensor second siding ring One resistance, prevent secondary side open circuit from producing high pressure.
- A kind of 13. micro-capacitance sensor active power distribution equipment as claimed in claim 1（1100）, it is characterised in that the sensor die Block（1160）Including CT current sensors（1131）With VT voltage sensors（1132）, the microgrid control module（1120）Pass through The sensor assembly（1160）The grid entry point is gathered in real time（1500）Locate voltage and current vector, calculate four-quadrant work(in real time Rate value, and according to four-quadrant performance number, adjust the generated output and/or generating mould of the controllable type distributed power source (1110) Formula.
- A kind of 14. micro-capacitance sensor active power distribution equipment as claimed in claim 13（1100）, it is characterised in that microgrid control module （1120）The controllable type distributed power source (1110) can be built in.
- A kind of 15. micro-capacitance sensor active power distribution equipment as claimed in claim 1（1100）, it is characterised in that first signal Transmission channel（1140）With the secondary signal transmission channel（1160）Wired communication mode or communication can be used.
- 16. one kind is used for micro-grid system（1000）Active distribution control method, it is characterised in that including：Step a. detects grid entry point（1500）Electrical parameter information；Step b. is according to the electrical parameter information, the generated output of regulation controllable type distributed power source (1110) and/or generating Pattern.
- 17. control method as claimed in claim 16, it is characterised in that the electrical parameter information can be the one of following information Kind or several combinations：- voltage vector（V）；- current phasor（I）；- positive active power（P1）；- reverse active power（P2）；- positive reactive power（P3）；And- reverse reactive power（P4）.
- 18. control method as claimed in claim 17, it is characterised in that the electrical parameter information also includes direction of tide and believed Breath.
- 19. control method as claimed in claim 16, it is characterised in that the step b also includes according to the micro-capacitance sensor system System（1000）Total power load power information, adjust the generated output and/or hair of the controllable type distributed power source (1110) Power mode.
- 20. the control method as described in any one in claim 16 to 19, it is characterised in thatWhen the controllable type distributed power source（1110）It is two-phase or three-phase generation unit, and output voltage or electric current can be by When being operated in three-phase imbalance pattern to control, the step b also includes：According to the electrical parameter information, reduce described controllable Formula distributed power source（1110）The few phase mains power output of load, increase the controllable type distributed power source（1110）It is negative Carry big phase mains power output.
- 21. control method as claimed in claim 16, it is characterised in that the step a also includes detection public electric wire net （2000）Power on/off status information；The step b also includes working as the public electric wire net（2000）With the micro-grid system （1000）During disconnection, the controllable type distributed power source is adjusted（1110）Switch to the pattern of being incorporated into the power networks；When the common electrical Net（2000）With the micro-grid system（1000）During closure, the controllable type distributed power source is adjusted（1110）Switch to orphan Island operational mode.
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