CN105048492A - Grid connection solution of distributed photovoltaic and biomass power generation - Google Patents
Grid connection solution of distributed photovoltaic and biomass power generation Download PDFInfo
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- CN105048492A CN105048492A CN201510377010.1A CN201510377010A CN105048492A CN 105048492 A CN105048492 A CN 105048492A CN 201510377010 A CN201510377010 A CN 201510377010A CN 105048492 A CN105048492 A CN 105048492A
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- 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
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The invention discloses a grid connection solution of a distributed photovoltaic and biomass power generation. Grid connection control is performed on a power grid public network, a biomass power generation system and a photovoltaic power generation system, and control and regulation are performed using photovoltaic power generation to the greatest extent, the power grid for supplementation and biomass power generation as backup, thereby realizing electric energy output; and all control and regulation commands are sent out through a monitoring master station, the monitoring master station analyzes power generation and supply situations and determines an running mode according to collected power generation system parameter information and an electrification situation of the power grid, issues the mode to a coordination controller, and the coordination controller executes the running mode. The grid connection solution of distributed photovoltaic and biomass power generation is suitable for grid connection of multiple power supplies in a rural area, and enables biomass power generation and photovoltaic power generation to run coordinately, thereby giving full play to maximum benefits and value, and meeting an environment-friendly modern energy utilization requirement.
Description
Technical field
The present invention relates to distribution network automated technical field, the grid-connected solution of particularly a kind of distributed photovoltaic and biomass power generation.
Background technology
Distributed power source is the important component part in intelligent grid, the biomass energies such as the Methane Resources utilizing rural area abundant and photovoltaic build rural area distributed power source, build distributed generation system according to the mode of " generating power for their own use; surplus is surfed the Net; electrical network regulates ", promote that new rural village Economic Sustainability low-carbon (LC) develops in a healthy way.In order to better for the client of the especially vast rural area of client provides first-class good service, strengthen power supply enterprise's informatization simultaneously, improve Intelligent Service means, the call that response national energy-saving reduces discharging, we technically, service theory proposes this project solution.This project take pig farm as the raw material site of new forms of energy, photovoltaic energy is combined with biogas energy and sets up new forms of energy integrated application and to demonstrate township, rural area client is instructed to suit measures to local conditions the collaborative generating of the multiple new forms of energy of integrated application nearby, realize and local use personal based on user, excrescent electric power sends into local power distribution network.
The distributed power source of the biomass energies such as the Methane Resources that rural area is enriched and photovoltaic generation form be clean, green power generation mode, have considerable value to improvement rural area biological pollution.But due to biomass power generation different from the feature of photovoltaic generation, thus both run inharmonious, its greatest benefit and value can not be given full play to.
Summary of the invention
In view of this, the object of this invention is to provide the grid-connected solution of a kind of distributed photovoltaic and biomass power generation, be applicable to the grid-connected of rural area multiple power sources, make biomass power generation and photovoltaic generation coordinated operation, its greatest benefit and value can be given full play to, thus can power failure be reduced.
The object of the invention is to be achieved through the following technical solutions:
The grid-connected solution of this kind of distributed photovoltaic and biomass power generation, that electrical network public network, biomass power generation system, photovoltaic generating system are carried out cutting-in control, employing allows photovoltaic generate electricity to greatest extent, electrical network supplements, biomass power generation is carried out controlling and regulating in support, realizes electric energy and exports;
All control and regulating command are sent by master station, described master station gathers parameter information at sunshine, Weather information, biomass power generation system information gather load data, power network switch state information by distribution terminal, the electricity generation system parameter information of master station according to collection and the charged situation of electrical network, analyze and send out electric power thus supplied and determine operational mode, pattern is handed down to tuning controller, performs operational mode by tuning controller;
Described operational mode comprises:
Pattern one: biomass energy is not quite sufficient, when sunshine is sufficient, photovoltaic generating system is grid-connected by combining inverter, and when satisfied local load, providing auxiliary power batch sales are to electrical network; Biomass power generation system is sent out meritorious less, multiple idle, provides reactive power to photovoltaic DC-to-AC converter, reduces from the idle transmission needed for electrical network acquisition inverter, improves the power factor of electrical network;
Pattern two: biomass energy is sufficient, when sunshine, fluctuation was larger, now local biomass power generation scale enough meets local workload demand and to continue to obtain raw material reliably supplementary, takes photovoltaic generating system to generate electricity by way of merging two or more grid systems, to electrical network sale of electricity; Biomass power generation system is not grid-connected, or powers only to local load;
Pattern three: biomass energy is not quite sufficient, sunshine is time sufficient, when grid cut-off, electrical network main switch disconnects, biomass power generation system starts independent operation mode, photovoltaic generating system take 5kW as run unit, controls by master control system the local isolated power network being incorporated to biomass power generation system one by one; After the work that is incorporated to of photovoltaic generating system completes, if photovoltaic generation can meet workload demand, for saving biomass energy use amount, extend islanded system power-on time, biomass power generation system is sent out meritorious, multiple idle mode run according to few;
Pattern four: biomass energy is sufficient, when sunshine is not enough, when grid cut-off, electrical network main switch disconnects, and biomass power generation system starts independent operation mode, and photovoltaic generating system does not work;
Pattern five: during biomass energy quantity not sufficient, cannot start generating, when grid cut-off, enters shutdown mode;
Above-mentioned pattern three, pattern four, pattern five are for tackling emergency processing during grid cut-off.
Further, described master station is also according to IEC61970 standard-creation electrical network primary equipment model and secondary device model, and model contains the topological connection relation of power distribution network and the incidence relation of primary equipment and secondary device.
The invention has the beneficial effects as follows:
The grid-connected solution of distributed photovoltaic of the present invention and biomass power generation, be applicable to the grid-connected of rural area multiple power sources, make biomass power generation and photovoltaic generation coordinated operation, can give full play to its greatest benefit and value, the modern energy simultaneously meeting environment-friendly and green utilizes requirement, in addition, flexibility of the present invention is high, application scenarios is various, and master station can issue operational mode according to the rule arranged in advance to distributed power source tuning controller, carries out pattern automatically regulate each power supply; Also can according to the real time data gathered, analyze the generating operating mode providing the distributed power source of reference, main website operator on duty also can according to operating experience and power system operating mode, determine whether manual adjustments is carried out in the order of sending reference operational mode, thus achieve the regulating and controlling of intellectuality, efficient activity.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by specification below and claims and be obtained.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is MBM schematic diagram of the present invention;
Fig. 2 is real-time data set module diagram of the present invention;
Fig. 3 is Network topology schematic diagram of the present invention;
Fig. 4 is power generation mode identification module schematic diagram of the present invention;
Fig. 5 is tuning controller module diagram of the present invention.
Embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment only in order to the present invention is described, instead of in order to limit the scope of the invention.
The grid-connected solution of distributed photovoltaic of the present invention and biomass power generation is that electrical network public network, biomass power generation system, photovoltaic generating system are carried out cutting-in control, employing allows photovoltaic generate electricity to greatest extent, electrical network supplements, biomass power generation is carried out controlling and regulating in support, realizes electric energy and exports;
All control and regulating command are sent by master station, master station gathers parameter information at sunshine, Weather information, biomass power generation system information gather load data, power network switch state information by distribution terminal, the electricity generation system parameter information of master station according to collection and the charged situation of electrical network, analyze and send out electric power thus supplied and determine operational mode, pattern is handed down to tuning controller, performs operational mode by tuning controller;
Operational mode comprises:
Pattern one: biomass energy is not quite sufficient, when sunshine is sufficient, photovoltaic generating system is grid-connected by combining inverter, and when satisfied local load, providing auxiliary power batch sales are to electrical network; Biomass power generation system is sent out meritorious less, multiple idle, provides reactive power to photovoltaic DC-to-AC converter, reduces from the idle transmission needed for electrical network acquisition inverter, improves the power factor of electrical network;
Pattern two: biomass energy is sufficient, when sunshine, fluctuation was larger, now local biomass power generation scale enough meets local workload demand and to continue to obtain raw material reliably supplementary, takes photovoltaic generating system to generate electricity by way of merging two or more grid systems, to electrical network sale of electricity; Biomass power generation system is not grid-connected, or powers only to local load;
Pattern three: biomass energy is not quite sufficient, sunshine is time sufficient, when grid cut-off, electrical network main switch disconnects, biomass power generation system starts independent operation mode, photovoltaic generating system take 5kW as run unit, controls by master control system the local isolated power network being incorporated to biomass power generation system one by one; After the work that is incorporated to of photovoltaic generating system completes, if photovoltaic generation can meet workload demand, for saving biomass energy use amount, extend islanded system power-on time, biomass power generation system is sent out meritorious, multiple idle mode run according to few;
Pattern four: biomass energy is sufficient, when sunshine is not enough, when grid cut-off, electrical network main switch disconnects, and biomass power generation system starts independent operation mode, and photovoltaic generating system does not work;
Pattern five: during biomass energy quantity not sufficient, cannot start generating, when grid cut-off, enters shutdown mode.
Above-mentioned pattern three, pattern four, pattern five are for tackling emergency processing during grid cut-off.
In the present invention, master station is also according to IEC61970 standard-creation electrical network primary equipment model and secondary device model, and model contains the topological connection relation of power distribution network and the incidence relation of primary equipment and secondary device.
The application scenarios of this method is as follows:
(1) modeling tool of IEC61970 standard is followed, generate main website Power grid structure, carry out the monitoring of distributed power source electricity generation system, the meteorological condition gathered by supervisory control system, load condition, electrical network real-time topology, electrical network are with electroanalysis etc. in real time, determine the generating operating mode of distributed power source.Main website issues operational mode according to the rule arranged in advance to distributed power source tuning controller, carries out pattern automatically regulate each power supply;
(2) according to the real time data gathered, the generating operating mode providing the distributed power source of reference is analyzed.Main website operator on duty according to operating experience and power system operating mode, can determine whether manual adjustments is carried out in the order of sending reference operational mode.
In the present invention, master station controls to complete and regulates, and it controls and regulating system mainly comprises following module:
1. follow the MBM of IEC61970 standard
As shown in Figure 1, MBM supports that CIM imports and manual Modling model, and module in charge resolves CIM file data, judges data correctness, create device data (primary equipment and secondary device) object, add in real-time data acquisition module.Common information model (CIM) is an abstract model, describes all main objects of electric power enterprise, particularly relevant with operation power object.By provide a kind of with object class and attribute and between them relation represent the standard method of power system resource, it is integrated that CIM facilitates that the EMS (EMS) that realizes different seller's stand-alone developments applies, integrated between the complete EMS system of multiple stand-alone development, and EMS system and other relate to the system of the different aspect of power system operation, such as, between generating or distribution system integrated.
2. real-time data set module
As shown in Figure 2, real-time data set module be equivalent to electrical network once with the container of secondary model object, safeguard operation of power networks data.This container is connection relation information between the equipment such as service equipment end points (Terminal) and tie point (ConnectivityNode) also.Real-time data set module externally provides the access interface of device object, packet, data point, equipment end points, tie point, topology operation etc., and namely real-time data set module is exactly " mirror image " of actual electric network equipment running status.
3. real-time data acquisition module
Real-time data acquisition module realizes terminal data to upload to supervisory control system, and convenient operation person carries out browsing data and supervision.The information gathered, except electric parameter, also comprises the meteorologic parameter such as biomass energy and irradiation, wind direction, wind speed, gas epidemic disaster, cloud amount.
4. topological analysis module
As shown in Figure 3, topological analysis module calculates the topological connection relation between electrical network primary equipment.Topological analysis comprises bus analysis and electrical island analyzes two parts.The node set that Closing Switch links together by topological analysis is defined as a bus.In the bus analysis phase, node correspond to the summit of figure, and closed switch correspond to the limit of figure; Electrical island analysis is bus sets definition circuit and transformer linked together is one " island ".Island is divided into " dead island " and " island of living ": " dead island " correspond to the power failure part of electrical network, and " island of living " correspond to the live part of electrical network.Bus analysis and island analysis are all the ergodic process of connected graph in fact.After power system operating mode changes, just need topological analysis module to carry out topology search, this module topology parser is that the depth-first search mode of employing figure realizes.
5. charged analysis module
As shown in Figure 3, charged analysis module homeomorphism analysis module is mutual, according to the position of power distribution and switch, analyzes power distribution network charging zone and equipment, determines charging zone and power supply interrupted district, be namely with electroanalysis.Result with electroanalysis provides boundary condition for Dynamic simulation module produces operation of power networks data.
6. pattern recognition module
As shown in Figure 3, according to information such as meteorology, biomass energy, load condition, charged analysis modules, identify the integrated status of generation current system, judge target pattern; Different according to the executive mode of control model, to automatically perform or release scheme goes manual execution to HMI.
7. Human machine interface module
For showing Net Frame of Electric Network winding diagram.Operator, according to electrical network main wiring diagram, can observe operational mode and the state of current electric grid.According to the executive mode of distributed power source control model, automatic or manual can be selected.When manual mode, system can provide suggestion for operation on HMI interface, is decided to select to perform or do not perform by operator.
8. tuning controller module
Tuning controller is responsible for the instruction issued according to main website, control command is issued to distributed power source according to designated mode, realize the operational mode of specifying, as shown in Figure 5, biomass power generation machine and photovoltaic power generation apparatus are distributed power source, tuning controller is connected to Ethernet by switch, the communication server, thus realizes the communication with SCADA server and work station.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (2)
1. the grid-connected solution of a distributed photovoltaic and biomass power generation, it is characterized in that: described method is that electrical network public network, biomass power generation system, photovoltaic generating system are carried out cutting-in control, employing allows photovoltaic generate electricity to greatest extent, electrical network supplements, biomass power generation is carried out controlling and regulating in support, realizes electric energy and exports;
All control and regulating command are sent by master station, described master station gathers parameter information at sunshine, Weather information, biomass power generation system information gather load data, power network switch state information by distribution terminal, the electricity generation system parameter information of master station according to collection and the charged situation of electrical network, analyze and send out electric power thus supplied and determine operational mode, pattern is handed down to tuning controller, performs operational mode by tuning controller;
Described operational mode comprises:
Pattern one: biomass energy is not quite sufficient, when sunshine is sufficient, photovoltaic generating system is grid-connected by combining inverter, and when satisfied local load, providing auxiliary power batch sales are to electrical network; Biomass power generation system is sent out meritorious less, multiple idle, for photovoltaic DC-to-AC converter provides reactive power, reduces from the idle transmission needed for electrical network acquisition inverter, improves the power factor of electrical network;
Pattern two: biomass energy is sufficient, when sunshine, fluctuation was larger, now local biomass power generation scale enough meets local workload demand and to continue to obtain raw material reliably supplementary, takes photovoltaic generating system to generate electricity by way of merging two or more grid systems, to electrical network sale of electricity; Biomass power generation system is not grid-connected, or powers only to local load;
Pattern three: biomass energy is not quite sufficient, sunshine is time sufficient, this pattern is for tackling the situation of grid cut-off, now electrical network main switch disconnects, biomass power generation system starts independent operation mode, photovoltaic generating system take 5kW as run unit, controls by master control system the local isolated power network being incorporated to biomass power generation system one by one; After the work that is incorporated to of photovoltaic generating system completes, if photovoltaic generation can meet workload demand, for saving biomass energy use amount, extend islanded system power-on time, biomass power generation system is sent out meritorious, multiple idle mode run according to few;
Pattern four: biomass energy is sufficient, when sunshine is not enough, this pattern is for tackling the situation of grid cut-off, and now electrical network main switch disconnects, and biomass power generation system starts independent operation mode, and photovoltaic generating system does not work;
Pattern five: during biomass energy quantity not sufficient, cannot start generating, and this pattern, for tackling the situation of grid cut-off, enters shutdown mode.
2. the grid-connected solution of a kind of distributed photovoltaic according to claim 1 and biomass power generation, it is characterized in that: described master station is also according to IEC61970 standard-creation electrical network primary equipment model and secondary device model, and model contains the topological connection relation of power distribution network and the incidence relation of primary equipment and secondary device.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110363679A (en) * | 2019-08-27 | 2019-10-22 | 中国恩菲工程技术有限公司 | Micro-capacitance sensor platform, management-control method, device, medium and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201994663U (en) * | 2011-01-11 | 2011-09-28 | 程远东 | Methane and light complementary integral intelligent power generator |
| CN102882223A (en) * | 2011-07-11 | 2013-01-16 | 陈巍 | Water, wind, solar and biomass multi-energy integrated complementary power generation method and device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201994663U (en) * | 2011-01-11 | 2011-09-28 | 程远东 | Methane and light complementary integral intelligent power generator |
| CN102882223A (en) * | 2011-07-11 | 2013-01-16 | 陈巍 | Water, wind, solar and biomass multi-energy integrated complementary power generation method and device |
Non-Patent Citations (1)
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| 贾楠等: "生态村分布式供能系统分析", 《节能》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110363679A (en) * | 2019-08-27 | 2019-10-22 | 中国恩菲工程技术有限公司 | Micro-capacitance sensor platform, management-control method, device, medium and electronic equipment |
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