CN107959306B - A kind of micro-capacitance sensor monitoring system - Google Patents
A kind of micro-capacitance sensor monitoring system Download PDFInfo
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- CN107959306B CN107959306B CN201711265424.0A CN201711265424A CN107959306B CN 107959306 B CN107959306 B CN 107959306B CN 201711265424 A CN201711265424 A CN 201711265424A CN 107959306 B CN107959306 B CN 107959306B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 238000012806 monitoring device Methods 0.000 claims abstract description 68
- 230000005611 electricity Effects 0.000 claims abstract description 29
- 238000004146 energy storage Methods 0.000 claims abstract description 27
- 238000010248 power generation Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 23
- 230000002457 bidirectional effect Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 9
- 238000007726 management method Methods 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000013021 overheating Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims 1
- 239000012141 concentrate Substances 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- 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
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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- H02J13/0096—
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- H02J3/383—
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- H02J3/386—
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- 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
-
- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
-
- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The present invention provides a kind of micro-capacitance sensor monitoring systems, including：Photovoltaic generating monitoring device, wind-power electricity generation monitoring device, miniature gas turbine generating monitoring device, other generating monitoring devices, energy storage monitoring device, load monitoring device and integrated information monitoring device.A kind of micro-capacitance sensor monitoring system of the present invention is by acquiring the real time information such as distributed power generation DG power supply points, circuit, power distribution network, load, form the real-time monitoring of entire micro-capacitance sensor trend, Real-Time Scheduling adjusts the operation of micro-capacitance sensor, and micro-capacitance sensor active power is accurately estimated, enhance power monitoring effect.
Description
Technical field
The present invention relates to micro-capacitance sensor fields, and in particular to a kind of micro-capacitance sensor monitoring system.
Background technology
Micro-capacitance sensor is that be made of distributed power generation DG, load, energy storage device and control device one is single controllable only
Vertical electricity generation system, micro-capacitance sensor, which is one, can realize self-contr ol, protection and the autonomous system of management, both can be with external electrical network
It is incorporated into the power networks, it can also isolated operation.
However existing micro-capacitance sensor monitor supervision platform function is more single, not smart enoughization, and to the calculating of microgrid power
Error is larger, and power monitoring effect is not ideal enough.
Invention content
In view of the above-mentioned drawbacks of the prior art, the present invention provides a kind of micro-capacitance sensor monitoring systems, including：
Photovoltaic generating monitoring device, wind-power electricity generation monitoring device, miniature gas turbine generating monitoring device, other power generation prisons
Control device, energy storage monitoring device, load monitoring device and integrated information monitoring device, wherein
Photovoltaic generating monitoring device is used for：
(1) the current power generation general power, day gross generation of real-time display photovoltaic, accumulative gross generation, accumulative CO2Total emission reduction
Amount and daily generated output curve graph,
(2) check the operating parameter of each photovoltaic DC-to-AC converter, including DC voltage, DC current, stream power, alternating voltage,
Alternating current, frequency, current generated output, power factor, day hair amount, accumulative power generation most, accumulative C02 emission reduction, inverter machine
Interior temperature and work(output curve diagram interior for 24 hours,
(3) monitor inverter operating status, prompt equipment to break down using sound-light alarm mode, see failure cause and
Fault time, fault message include：Network voltage is excessively high, network voltage is too low, mains frequency is excessively high, mains frequency is too low, straight
Flow too low overtension, DC voltage, inverter overload, inverter overheating, inverter short circuit, radiator overheat, inverter orphan
Island, communication failure,
(4) the short-term and ultra-short term generated output for predicting photovoltaic generation, foundation is provided for microgrid energy Optimized Operation,
(5) photovoltaic generation power is adjusted, the start and stop of photovoltaic DC-to-AC converter are controlled；
Wind-power electricity generation monitoring device is used for：
(1) the current power generation general power, day gross generation of real-time display wind-power electricity generation, accumulative gross generation, and it is interior for 24 hours
Generated output curve graph.
(2) acquire fan operation state data, mainly include three-phase voltage, three-phase current, mains frequency, power factor,
Output power, generator speed, wind speed round, generator windings temperature, gear-box oil temperature, environment temperature, control plate temperature, machine
Tool brake pad is worn and temperature, Cable Twist, cabin vibrations, anemobiagraph and wind vane.
(3) the short-term and ultra-short term generated output for predicting wind-power electricity generation, foundation is provided for microgrid energy Optimized Operation.
(4) wind-power electricity generation power is adjusted, the start and stop of inverter are controlled；
Miniature gas turbine generating monitoring device is used for：
(1) the main running parameter of miniature gas turbine generating set, including rotating speed, gas inlet amount, gas pressure are monitored
Power, pressure at expulsion, delivery temperature, pinking amount, oxygen content,
(2) grid-connected front and back voltage, electric current, frequency, phase and power factor are monitored,
(3) divide miniature gas turbine generating set working condition the adjusting of Xin, management and working condition；
Other generating monitoring devices are used for：
Monitor current DG output voltages, operating current, input power, grid-connected current, grid-connected power, network voltage, current
Generated output, accumulative generated output, power output curve interior for 24 hours, grid-connected power curve interior for 24 hours；
Energy storage monitoring device is used for：
(1) real-time display energy storage it is current can discharge capacity, chargeable amount, maximum discharge power, present discharge power, can put
Electric time, total charge volume, total discharge capacity,
(2) remote signalling：The operating status of alternating current-direct current bidirectional converter, protection information, warning information, wherein protection information packet
Include under-voltage protection, overvoltage protection, open-phase protection, low frequency protection, overfrequency protection, overcurrent protection, device guarantor extremely
Shield, the protection of battery pack unusual service condition, overheat protector,
(3) telemetering：Cell voltage, battery charging and discharging electric current, alternating voltage, the input and output work(of alternating current-direct current bidirectional converter
Rate,
(4) distant to wither：Remote regulating is carried out to battery charging and discharging time, charging and discharging currents, battery protection voltage, realizes distal end to handing over
The adjusting of direct current bidirectional converter relevant parameter,
(5) it is remotely controlled：The charging of far-end remote control battery, battery discharge are carried out to alternating current-direct current bidirectional converter；
Load monitoring device is used for:
(1) load voltage, electric current, active power, reactive power, apparent energy are monitored,
(2) load maximum power and time of occurrence, maximum three-phase voltage and time of occurrence, maximum three-phase activity coefficient are recorded
And time of occurrence, statistical monitoring rate of qualified voltage, power off time,
(3) load overload alarm, history curve, report, event query are provided；
Integrated information monitoring device is used for：
Monitor the integrated information of micro-grid system operation, including the voltage of micro-grid system frequency, points of common connection, distribution
Exchange power, and the total generated output of real-time statistics micro-capacitance sensor, energy storage residual capacity, the total burden with power of micro-capacitance sensor, total load or burden without work,
The total active, controllable burden of sensitive load is always active, complete load curtailment is always active, and monitors that each breaker is opened inside micro-capacitance sensor
The alarm real time information of off status, each branch active power, each branch reactive power, each equipment, completes the reality of entire micro-capacitance sensor
When monitor and statistics.
Preferably, the system from the power distribution network dispatch layer of micro-capacitance sensor, central control level, on the spot three levels of control layer into
Row integrated management and control, wherein power distribution network dispatch layer coordinate multiple micro-capacitance sensors from power distribution network safety, the angle of economical operation, micro-
Power grid receives the adjusting control order of higher level's power distribution network, and micro-capacitance sensor central control level manages distributed generation resource and all kinds of negative concentratedly
Lotus is responsible for realizing the maximization of micro-capacitance sensor value when micro-grid connection is run and optimizes micro-capacitance sensor operation, in off-grid operation
Adjust the electricity consumption situation that distribution power is contributed with each type load, the lower layer's distributed power controller of control layer and load control on the spot
Device processed is responsible for the transient power balance and low-frequency load shedding of micro-capacitance sensor.
Preferably, the load monitoring device is additionally operable to：Active-power P is calculated as followsL:
Wherein, fiFor the device frequency of i-th of energy storage device, fNFor system nominal frequency, * is perunit value, PLNIt is specified
Active power under frequency, PVFor the compensation fluctuated to system voltage, a0+a1+…+an=1。
A kind of micro-capacitance sensor monitoring system of the present invention is by acquiring distributed power generation DG power supply points, circuit, power distribution network, load
Equal real time information form the real-time monitoring of entire micro-capacitance sensor trend, and Real-Time Scheduling adjusts the operation of micro-capacitance sensor, and has to micro-capacitance sensor
Work(power is accurately estimated, power monitoring effect is enhanced.
Description of the drawings
Fig. 1 is the Organization Chart of micro-capacitance sensor monitoring system of the present invention；
Fig. 2 is the hierarchical chart of micro-capacitance sensor monitoring system of the present invention.
Specific implementation mode
Micro-capacitance sensor monitoring management system, mainly to distributed power generation, energy storage device and the load condition inside micro-capacitance sensor
Real time comprehensive monitoring is carried out, is convenient for when micro-grid connection operation, off-grid operation and state switch, it is special according to power supply and load
Property, control is optimized to internal distributed power generation, energy storage device and load and energy, realizes the safety and stability fortune of micro-capacitance sensor
Row, improves the efficiency of energy utilization of micro-capacitance sensor.
Micro-capacitance sensor monitoring system is by acquiring the letter in real time such as distributed power generation DG power supply points, circuit, power distribution network, load
Breath forms the real-time monitoring of entire micro-capacitance sensor trend, and is constrained according to micro-capacitance sensor operation constraint and energy balance, real
When Dispatching adjustment micro-capacitance sensor operation.In micro-capacitance sensor monitoring system, energy management be integrated DG, load, energy storage dress twist and with
The key link of distribution network interface.
By specific implementation mode and/or embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, which show the Organization Charts of micro-capacitance sensor monitoring system of the present invention.A kind of micro-capacitance sensor monitoring system, packet
It includes：
Photovoltaic generating monitoring device, wind-power electricity generation monitoring device, miniature gas turbine generating monitoring device, other power generation prisons
Control device, energy storage monitoring device, load monitoring device and integrated information monitoring device, the photovoltaic generating monitoring device, wind-force
Generating monitoring device, miniature gas turbine generating monitoring device, other generating monitoring devices, energy storage monitoring device, load monitoring
Logical connection or electrical connection between device and integrated information monitoring device, and the photovoltaic generating monitoring device, wind-power electricity generation are supervised
Control device, miniature gas turbine generating monitoring device, other generating monitoring devices, energy storage monitoring device, load monitoring device and
Integrated information monitoring device includes the apparatus module and/or unit for realizing its monitoring function.Wherein,
Photovoltaic generating monitoring device comprehensively monitors the real-time traffic information and warning message of photovoltaic generation, and right
Photovoltaic generation carries out various statistics and analysis, realizes the control in all directions to photovoltaic generation.
Photovoltaic generating monitoring device is specifically used for：
(1) the current power generation general power, day gross generation of real-time display photovoltaic, accumulative gross generation, accumulative CO2Total emission reduction
Amount and daily generated output curve graph,
(2) check the operating parameter of each photovoltaic DC-to-AC converter, including DC voltage, DC current, stream power, alternating voltage,
Alternating current, frequency, current generated output, power factor, day hair amount, accumulative power generation most, accumulative C02 emission reduction, inverter machine
Interior temperature and work(output curve diagram interior for 24 hours,
(3) monitor inverter operating status, prompt equipment to break down using sound-light alarm mode, see failure cause and
Fault time, fault message include：Network voltage is excessively high, network voltage is too low, mains frequency is excessively high, mains frequency is too low, straight
Flow too low overtension, DC voltage, inverter overload, inverter overheating, inverter short circuit, radiator overheat, inverter orphan
Island, communication failure,
(4) the short-term and ultra-short term generated output for predicting photovoltaic generation, foundation is provided for microgrid energy Optimized Operation,
(5) photovoltaic generation power is adjusted, the start and stop of photovoltaic DC-to-AC converter are controlled；
Wind-power electricity generation monitoring device comprehensively monitors real-time traffic information, the warning message of wind-power electricity generation, and right
Wind-power electricity generation carries out various statistics and analysis, realizes the monitoring in all directions to wind-power electricity generation.
Wind-power electricity generation monitoring device is specifically used for：
(1) the current power generation general power, day gross generation of real-time display wind-power electricity generation, accumulative gross generation, and it is interior for 24 hours
Generated output curve graph.
(2) acquire fan operation state data, mainly include three-phase voltage, three-phase current, mains frequency, power factor,
Output power, generator speed, wind speed round, generator windings temperature, gear-box oil temperature, environment temperature, control plate temperature, machine
Tool brake pad is worn and temperature, Cable Twist, cabin vibrations, anemobiagraph and wind vane.
(3) the short-term and ultra-short term generated output for predicting wind-power electricity generation, foundation is provided for microgrid energy Optimized Operation.
(4) wind-power electricity generation power is adjusted, the start and stop of inverter are controlled；
The real-time traffic information and warning message that miniature gas turbine generating monitoring device generates electricity to miniature gas turbine into
Row overall monitor, and various statistical analyses are carried out to miniature gas turbine power generation, it realizes to the comprehensive of miniature gas turbine
Monitoring.
Miniature gas turbine generating monitoring device is specifically used for：
(1) the main running parameter of miniature gas turbine generating set, including rotating speed, gas inlet amount, gas pressure are monitored
Power, pressure at expulsion, delivery temperature, pinking amount, oxygen content,
(2) grid-connected front and back voltage, electric current, frequency, phase and power factor are monitored,
(3) divide miniature gas turbine generating set working condition the adjusting of Xin, management and working condition；
Other generating monitoring devices are similar with above-mentioned generating monitoring device,
Other generating monitoring devices are specifically used for：
Monitor current DG output voltages, operating current, input power, grid-connected current, grid-connected power, network voltage, current
Generated output, accumulative generated output, power output curve interior for 24 hours, grid-connected power curve interior for 24 hours；
Energy storage monitoring device carries out real-time traffic information, the warning message of energy-storage battery and energy accumulation current converter PCS comprehensive
Monitoring, and various statistics and analysis are carried out to energy storage, realize the control in all directions to energy storage.
Energy storage monitoring device is specifically used for：
(1) real-time display energy storage it is current can discharge capacity, chargeable amount, maximum discharge power, present discharge power, can put
Electric time, total charge volume, total discharge capacity,
(2) remote signalling：The operating status of alternating current-direct current bidirectional converter, protection information, warning information, wherein protection information packet
Include under-voltage protection, overvoltage protection, open-phase protection, low frequency protection, overfrequency protection, overcurrent protection, device guarantor extremely
Shield, the protection of battery pack unusual service condition, overheat protector,
(3) telemetering：Cell voltage, battery charging and discharging electric current, alternating voltage, the input and output work(of alternating current-direct current bidirectional converter
Rate,
(4) distant to wither：Remote regulating is carried out to battery charging and discharging time, charging and discharging currents, battery protection voltage, realizes distal end to handing over
The adjusting of direct current bidirectional converter relevant parameter,
(5) it is remotely controlled：The charging of far-end remote control battery, battery discharge are carried out to alternating current-direct current bidirectional converter；
Load monitoring device carries out overall monitor to load operation information and warning message, and is carried out to load various
The overall monitor to load is realized in statistical analysis.
Load monitoring device is specifically used for:
(1) load voltage, electric current, active power, reactive power, apparent energy are monitored,
(2) load maximum power and time of occurrence, maximum three-phase voltage and time of occurrence, maximum three-phase activity coefficient are recorded
And time of occurrence, statistical monitoring rate of qualified voltage, power off time,
(3) load overload alarm, history curve, report, event query are provided；
Integrated information monitoring device is specifically used for：
Monitor the integrated information of micro-grid system operation, including the voltage of micro-grid system frequency, points of common connection, distribution
Exchange power, and the total generated output of real-time statistics micro-capacitance sensor, energy storage residual capacity, the total burden with power of micro-capacitance sensor, total load or burden without work,
The total active, controllable burden of sensitive load is always active, complete load curtailment is always active, and monitors that each breaker is opened inside micro-capacitance sensor
The alarm real time information of off status, each branch active power, each branch reactive power, each equipment, completes the reality of entire micro-capacitance sensor
When monitor and statistics.
Micro-capacitance sensor monitoring system is integrated local distributed power generation, load, energy storage and the center ring with distribution network interface
Section can be generated by fixed power balancing algorithm and control to adjust strategy, ensure micro-capacitance sensor simultaneously, off-network and state be when switching
Stable operation.
Further, the load monitoring device is additionally operable to：Active-power P is calculated as followsL:
Referring to Fig. 2, the system is from the power distribution network dispatch layer of micro-capacitance sensor, central control level, on the spot three levels of control layer
Integrated management and control are carried out, wherein power distribution network dispatch layer coordinates multiple micro-capacitance sensors from power distribution network safety, the angle of economical operation
（Micro-capacitance sensor shows as the controlled cell of list-relative to bulk power grid）, micro-capacitance sensor receives the adjusting control order of higher level's power distribution network,
Micro-capacitance sensor central control level manages distributed generation resource concentratedly（Including distributed power generation and energy storage）With each type load, micro-capacitance sensor simultaneously
It is responsible for realizing the maximization of micro-capacitance sensor value when network operation and optimizes micro-capacitance sensor operation, distribution power is adjusted in off-grid operation and is gone out
The electricity consumption situation of power and each type load, the distributed power controller and load governor of lower layer's control layer on the spot are responsible for micro- electricity
The transient power of net balances and low-frequency load shedding.
A kind of micro-capacitance sensor monitoring system of the present invention can be led to by software module and/or hardware device integration realization
The real time information such as acquisition distributed power generation DG power supply points, circuit, power distribution network, load are crossed, the real-time of entire micro-capacitance sensor trend is formed
Monitoring, Real-Time Scheduling adjust the operation of micro-capacitance sensor, and are accurately estimated micro-capacitance sensor active power, and power monitoring effect is enhanced
Fruit.
The explanation of embodiment of above and/or embodiment is merely used to help understand the method and thought of the present invention, does not answer
It is interpreted as limitation of the present invention.The simple replacement and deformation that technical solution according to the present invention is done, still fall within power of the present invention
The protection domain that profit requires and specification is covered.
Claims (3)
1. a kind of micro-capacitance sensor monitoring system, which is characterized in that including：
Photovoltaic generating monitoring device, wind-power electricity generation monitoring device, miniature gas turbine generating monitoring device, other power generation monitoring dresses
It sets, energy storage monitoring device, load monitoring device and integrated information monitoring device, wherein
Photovoltaic generating monitoring device is used for：
(1) the current power generation general power, day gross generation of real-time display photovoltaic, accumulative gross generation, accumulative CO2Total emission reduction with
And daily generated output curve graph,
(2) operating parameter of each photovoltaic DC-to-AC converter, including DC voltage, DC current, alternating voltage, alternating current, frequency are checked
Rate, current generated output, power factor, daily generation, the accumulative total of generating electricity, accumulative C02 emission reduction, inverter built-in temperature and
Power output curve graph in for 24 hours,
(3) operating status for monitoring inverter, prompts equipment to break down, sees failure cause and failure using sound-light alarm mode
Time, failure cause include：Network voltage is excessively high, network voltage is too low, mains frequency is excessively high, mains frequency is too low, direct current
It presses through too low height, DC voltage, inverter overload, inverter overheating, inverter short circuit, radiator overheat, inverter isolated island, lead to
Letter failure,
(4) the short-term and ultra-short term generated output for predicting photovoltaic generation, foundation is provided for microgrid energy Optimized Operation,
(5) photovoltaic generation power is adjusted, the start and stop of photovoltaic DC-to-AC converter are controlled；
Wind-power electricity generation monitoring device is used for：
(1) the current power generation general power, day gross generation of real-time display wind-power electricity generation, accumulative gross generation, and interior power generation for 24 hours
Power graph,
(2) acquire fan operation state data, including three-phase voltage, three-phase current, mains frequency, power factor, output power,
Generator speed, wind speed round, generator windings temperature, gear-box oil temperature, environment temperature, control plate temperature, mechanical braking lock
Pad wear and temperature, Cable Twist, cabin vibrations, anemobiagraph and wind vane,
(3) the short-term and ultra-short term generated output for predicting wind-power electricity generation, foundation is provided for microgrid energy Optimized Operation,
(4) wind-power electricity generation power is adjusted, the start and stop of inverter are controlled；
Miniature gas turbine generating monitoring device is used for：
(1) running parameter of miniature gas turbine generating set, including rotating speed, gas inlet amount, gaseous-pressure, exhaust pressure are monitored
Power, delivery temperature, pinking amount, oxygen content,
(2) grid-connected front and back voltage, electric current, frequency, phase and power factor are monitored,
(3) to the adjusting of miniature gas turbine generating set Working state analysis, management and working condition；
Other generating monitoring devices are used for：
Monitor current DG output voltages, operating current, input power, grid-connected current, grid-connected power, network voltage, current power generation
Power, accumulative generated output, power output curve interior for 24 hours, grid-connected power curve interior for 24 hours；
Energy storage monitoring device is used for：
(1) real-time display energy storage it is current can discharge capacity, chargeable amount, maximum discharge power, present discharge power, when can discharge
Between, total charge volume, total discharge capacity,
(2) remote signalling：The operating status of alternating current-direct current bidirectional converter, protection information, warning information, wherein protection information includes low
Voltage protection, overvoltage protection, open-phase protection, low frequency protection, overfrequency protection, overcurrent protection, device abnormal protection, electricity
Pond group unusual service condition protection, overheat protector,
(3) telemetering：Cell voltage, battery charging and discharging electric current, alternating voltage, the input-output power of alternating current-direct current bidirectional converter,
(4) distant to wither：Remote regulating is carried out to battery charging and discharging time, charging and discharging currents, battery protection voltage, realizes distal end to alternating current-direct current
The adjusting of bidirectional converter relevant parameter,
(5) it is remotely controlled：The charging of far-end remote control battery, battery discharge are carried out to alternating current-direct current bidirectional converter；
Load monitoring device is used for:
(1) load voltage, electric current, active power, reactive power, apparent energy are monitored,
(2) load maximum power and time of occurrence, maximum three-phase voltage and time of occurrence, maximum three-phase activity coefficient are recorded and is gone out
Between current, statistical monitoring rate of qualified voltage, power off time,
(3) load overload alarm, history curve, report, event query are provided；
Integrated information monitoring device is used for：
Monitor that the integrated information of micro-grid system operation, including the voltage of micro-grid system frequency, points of common connection, distribution exchange
Power, and the total generated output of real-time statistics micro-capacitance sensor, energy storage residual capacity, the total burden with power of micro-capacitance sensor, total load or burden without work, sensitivity
The total active, controllable burden of load is always active, complete load curtailment is always active, and monitors each killer switch shape inside micro-capacitance sensor
The real-time prison of entire micro-capacitance sensor is completed in the alarm real time information of state, each branch active power, each branch reactive power, each equipment
Control and statistics.
2. system according to claim 1, which is characterized in that the system from the power distribution network dispatch layer of micro-capacitance sensor, concentrate
Control layer, on the spot three levels of control layer carry out integrated management and control, and wherein power distribution network dispatch layer is safe from power distribution network, economical
The angle of operation coordinates multiple micro-capacitance sensors, and micro-capacitance sensor receives the adjusting control order of higher level's power distribution network, micro-capacitance sensor central control level
It manages distributed generation resource and each type load concentratedly, is responsible for realizing the maximization that micro-capacitance sensor is worth and excellent when micro-grid connection run
Change micro-capacitance sensor operation, distribution power is adjusted in off-grid operation and is contributed and the electricity consumption situation of each type load, lower layer's control layer on the spot
Distributed power controller and load governor, be responsible for micro-capacitance sensor transient power balance and low-frequency load shedding.
3. system according to claim 1, which is characterized in that the load monitoring device is additionally operable to：As follows
Calculate active-power PL:
Wherein,,fiFor the device frequency of i-th of energy storage device, fNFor system nominal frequency, * is perunit value, PLNFor
Active power under rated frequency, PVFor the compensation fluctuated to system voltage, a0+a1+…+an=1。
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| CN201810915173.4A CN109004682A (en) | 2017-12-05 | 2017-12-05 | A kind of intelligent micro-grid |
| CN201810915756.7A CN109004683A (en) | 2017-12-05 | 2017-12-05 | A kind of micro-grid system |
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| CN109768576B (en) * | 2019-02-26 | 2021-04-02 | 廊坊新奥泛能网络科技服务有限公司 | Universal energy station and reverse power protection method and device thereof |
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| CN110365110A (en) * | 2019-07-09 | 2019-10-22 | 广东埃文低碳科技股份有限公司 | A kind of management terminal being distributed energy internet |
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