CN104935007A - Control method for gird-connected operation of distributed power supply - Google Patents
Control method for gird-connected operation of distributed power supply Download PDFInfo
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- CN104935007A CN104935007A CN201510333343.4A CN201510333343A CN104935007A CN 104935007 A CN104935007 A CN 104935007A CN 201510333343 A CN201510333343 A CN 201510333343A CN 104935007 A CN104935007 A CN 104935007A
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Abstract
The invention relates to a control method for grid-connected operation of a distributed power supply. The control method comprises the following steps: (1) monitoring the operation state of the distributed power supply in an area, counting and displaying a record result; (2) tracking and monitoring power quality of the distributed power supply, comparing the power quality with specified standard state, and tagging abnormal distributed power supply of which the power quality is beyond over the specified standard; (4) checking and controlling power generation; (5) checking unqualified on-off gird control due to client power generation; and (6) controlling on-off grid caused by line maintenance. The control method has the advantages of high extensibility, flexibility and loose coupling, rapid extension and deep application can be carried out, whole-process monitoring on the distributed power supply can be achieved, monitoring dead space is avoided, investment at early stage is protected, and business monitoring efficiency of the distributed power supply is effectively improved.
Description
Technical field
The invention belongs to the control method that in electric power system, be incorporated into the power networks in the control technology field that generates electricity by way of merging two or more grid systems, particularly a kind of distributed power source of distributed power source.
Background technology
Current Distributed Power Generation growth momentum is very powerful, first country gives marketing support to photovoltaic power generation technology, " suggestion about carrying out the grid-connected services of distributed power source " is issued again recently to society, the marketization of positive promotion photovoltaic, wind-powered electricity generation, natural gas distributed energy development, on the basis carrying out the grid-connected work of distributed photovoltaic, expand the grid-connected power supply of all types of distributed power source to.And worked out standard and the detailed rules and regulations of the grid-connected service of a series of distributed power source.
Distributed energy resource system is not adopt traditional generation technology simply, but be based upon on the basis of the new technology such as automatic control system, advanced material technology, flexibly manufacturing process, there is low pollution emission, flexibly and easily, high reliability and high efficiency novel energy production system.There is environmental protection low-carbon (LC), safe and reliable, Peak Load effect.But for distributed power source, because distributed power source is larger by the impact of environmental factor, Distributed Power Generation also also exists technical various deficiency, power supply quality is unstable, the decline of whole mains supply quality will be caused after unclean electric energy is grid-connected, if distributed power source power supply quality can not be held to close, will cause damage to electrical network.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and propose the control method that a kind of distributed power source is incorporated into the power networks.
The present invention solves its technical problem and takes following technical scheme to realize:
The control method that distributed power source is incorporated into the power networks, comprises step as follows:
(1) to distributed power source monitoring running state in region; The device characteristics of record distributed power source, follow the tracks of also net state and the environmental parameter of distributed power source constantly; Carry out statistics to record result to show, the distributed power source of running status exception is marked;
(2) carry out tracking and monitoring to the distributed power source quality of power supply and required standard data contrast, the distributed power source quality of power supply being exceeded to required standard carries out abnormal mark;
(4) generating inspection controls
According to grid-connected voltage, the equipment requirement parameter of the client that generates electricity in service range, site inspection is carried out to distributed power source generating client, the scope of examination comprises check and the operation of grid-connection device operating index, grid connection capacity and equipment metering device, check result and promise breaking power generation situation is carried out recording and uploading to electric energy quality monitoring system;
(5) because of client generate electricity check underproof and from network control system
According to above-mentioned check result and promise breaking power generation situation, need to stop grid-connected distributed power source client to operation is abnormal, the quality of power supply is defective, interconnection technology does not meet operation of power networks requirement, issue client and from net notice, record notice situation, perform from net operation; To the client stopping the elimination of grid-connected reason, recover grid-connected;
(6) because of line maintenance cause and from network control system
According to scheduled overhaul and breakdown repair information, the circuit before overhauling in time involved by notice and the distributed power source client under platform district, monitoring from net state.
And the record in described step (1) and displaying specifically refer to:
1. in the form of a list, the record power generation type of distributed power source, mode of dissolving and and site, the constantly on off state of track record distributed power source points of common connection, electric parameter information (voltage, active power and reactive power), daily generation information and ambient parameter information;
2. with the form of broken line, according to the continuity of time, the situation of change of the voltage of single distributed daily generation fluctuation ratio, power grid point and points of common connection, active power, reactive power is shown.
And the tracking and monitoring in described step (2), contrast specifically refer to:
1. the track record distributed power source quality of power supply constantly, comprises the harmonic wave of the grid-connected power supply of distributed power source, m-Acetyl chlorophosphonazo, voltage deviation, voltage flicker, three-phase imbalance and power factor;
2. from existing electric energy quality monitoring system database, obtain the required standard data of this distributed electrical source user;
3. will track record data and required standard data contrast constantly, the distributed power source quality of power supply being exceeded to required standard carries out abnormal mark.
And abnormal tracking and process are specially in described step (3);
1. exception monitoring
With tabular form, according to running status anomaly classification and decision rule, according to customer number, customer name, management unit, power generation type, mode of dissolving and grid-connected voltage, show distributed power source running status abnormal information, comprise anomaly classification, anomaly time, treatment state;
2. abnormal initiation
By note or mail reminder relevant staff, the distributed power source to running status exception processes.
And under the involved circuit of notice and platform district, the mode of distributed power source client is, according to the contact method of client, send client remind with note, phone or mail he in described step (6).
Advantage of the present invention and good effect are:
1, the present invention realizes distributed power source whole process 360 degree monitoring, avoids monitoring dead angle;
2, the present invention is perfect traditional distributed monitoring mechanism, has the flexible and loose coupling of good expansion, can carry out Quick Extended and strengthened research, protect up-front investment;
3, the present invention effectively can improve distributed power source business monitoring efficiency, promotes that distributed power source business is carried out, indirectly brings economic benefit and management benefit.
Embodiment
Be further described the invention process below, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
The control method that distributed power source is incorporated into the power networks, it is as follows that the method comprising the steps of:
(1) to distributed power source monitoring running state in region; The device characteristics of record distributed power source, follow the tracks of also net state and the environmental parameter of distributed power source constantly; Carry out statistics to record result to show, the distributed power source of running status exception marked, specifically comprises:
1. in the form of a list, the record power generation type of distributed power source, mode of dissolving and and site, the constantly on off state of track record distributed power source points of common connection, electric parameter information (voltage, active power and reactive power), daily generation information and ambient parameter information;
2. with the form of broken line, according to the continuity of time, the situation of change of the voltage of single distributed daily generation fluctuation ratio, power grid point and points of common connection, active power, reactive power is shown;
(2) the distributed power source quality of power supply is monitored; By monitoring the quality of power supply information of distributed power source, grasp the overall quality of power supply situation of change of distributed power source in region,
1. the track record distributed power source quality of power supply constantly, comprises the harmonic wave of the grid-connected power supply of distributed power source, m-Acetyl chlorophosphonazo, voltage deviation, voltage flicker, three-phase imbalance and power factor;
2. from existing electric energy quality monitoring system database, obtain the required standard data of this distributed electrical source user;
3. will track record data and required standard data contrast constantly, the distributed power source quality of power supply being exceeded to required standard carries out abnormal mark;
(3) operation exception is followed the tracks of and process
1. exception monitoring
With tabular form, according to running status anomaly classification and decision rule, according to customer number, customer name, management unit, power generation type, mode of dissolving and grid-connected voltage, show distributed power source running status abnormal information, comprise anomaly classification, anomaly time, treatment state;
2. abnormal initiation
By note or mail reminder relevant staff, the distributed power source to running status exception processes;
3. abnormality processing
The distributed power source of running status exception is processed or rectified and improved, and recording processing object information, comprising: handler, processing time, processing scheme;
4. abnormal examination & verification
The result of the distributed power source of running status exception is audited, and records audit opinion, as do not audited by then again carrying out abnormal initiation;
(4) generating inspection controls
According to grid-connected voltage, the equipment requirement situation of the client that generates electricity in service range, site inspection is carried out to distributed power source generating client, the scope of examination comprises check and the operation of client's basic condition, grid-connection device operating index, grid connection capacity and equipment metering device, check result and promise breaking power generation situation is carried out recording and uploading to electric energy quality monitoring system;
(5) because of client generate electricity check underproof and from network control system
According to above-mentioned check result and promise breaking power generation situation, to operation abnormal (illegally gaining subsidy fund by cheating), the quality of power supply is defective, interconnection technology does not meet operation of power networks requirement needs to stop grid-connected distributed power source client, issue client and from net notice, record notice situation, performs from net operation; To the client stopping the elimination of grid-connected reason, recover grid-connected;
(6) because of line maintenance cause and from network control system
According to scheduled overhaul and breakdown repair information, the circuit before overhauling in time involved by notice and the distributed power source client under platform district, monitoring also from net state, ensures maintenance safety further.
1. according to scheduled overhaul, trouble hunting content, the distributed power source client under maintenance circuit is searched;
2. according to the contact method of client, send client with note, phone or mail he and remind.
Claims (5)
1. the control method that is incorporated into the power networks of distributed power source, is characterized in that comprising step as follows:
(1) to distributed power source monitoring running state in region; The device characteristics of record distributed power source, follow the tracks of also net state and the environmental parameter of distributed power source constantly; Carry out statistics to record result to show, the distributed power source of running status exception is marked;
(2) carry out tracking and monitoring to the distributed power source quality of power supply and required standard data contrast, the distributed power source quality of power supply being exceeded to required standard carries out abnormal mark;
(4) generating inspection controls
According to grid-connected voltage, the equipment requirement parameter of the client that generates electricity in service range, site inspection is carried out to distributed power source generating client, the scope of examination comprises check and the operation of grid-connection device operating index, grid connection capacity and equipment metering device, check result and promise breaking power generation situation is carried out recording and uploading to electric energy quality monitoring system;
(5) because of client generate electricity check underproof and from network control system
According to above-mentioned check result and promise breaking power generation situation, need to stop grid-connected distributed power source client to operation is abnormal, the quality of power supply is defective, interconnection technology does not meet operation of power networks requirement, issue client and from net notice, record notice situation, perform from net operation; To the client stopping the elimination of grid-connected reason, recover grid-connected;
(6) because of line maintenance cause and from network control system
According to scheduled overhaul and breakdown repair information, the circuit before overhauling in time involved by notice and the distributed power source client under platform district, monitoring from net state.
2. the control method that is incorporated into the power networks of distributed power source according to claim 1, is characterized in that: the record in described step (1) and showing specifically refers to:
1. in the form of a list, the record power generation type of distributed power source, mode of dissolving and and site, the constantly on off state of track record distributed power source points of common connection, electric parameter information (voltage, active power and reactive power), daily generation information and ambient parameter information;
2. with the form of broken line, according to the continuity of time, the situation of change of the voltage of single distributed daily generation fluctuation ratio, power grid point and points of common connection, active power, reactive power is shown.
3. the control method that is incorporated into the power networks of distributed power source according to claim 1, is characterized in that: the tracking and monitoring in described step (2), contrast specifically refer to:
1. the track record distributed power source quality of power supply constantly, comprises the harmonic wave of the grid-connected power supply of distributed power source, m-Acetyl chlorophosphonazo, voltage deviation, voltage flicker, three-phase imbalance and power factor;
2. from existing electric energy quality monitoring system database, obtain the required standard data of this distributed electrical source user;
3. will track record data and required standard data contrast constantly, the distributed power source quality of power supply being exceeded to required standard carries out abnormal mark.
4. the control method that is incorporated into the power networks of distributed power source according to claim 1, is characterized in that: extremely in described step (3) to follow the tracks of and process being specially;
1. exception monitoring
With tabular form, according to running status anomaly classification and decision rule, according to customer number, customer name, management unit, power generation type, mode of dissolving and grid-connected voltage, show distributed power source running status abnormal information, comprise anomaly classification, anomaly time, treatment state;
2. abnormal initiation
By note or mail reminder relevant staff, the distributed power source to running status exception processes.
5. the control method that is incorporated into the power networks of distributed power source according to claim 1, it is characterized in that: under the involved circuit of notice and platform district, the mode of distributed power source client is in described step (6), according to the contact method of client, send client with note, phone or mail he and remind.
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Cited By (5)
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| CN106786785A (en) * | 2017-03-31 | 2017-05-31 | 国网福建省电力有限公司 | A kind of distributed power source omnibearing management method |
| CN108493989A (en) * | 2018-03-22 | 2018-09-04 | 河海大学 | A kind of large-scale photovoltaic, the power generation monitoring of wind-powered electricity generation electricity generation grid-connecting system and load distribution method |
| CN108960558A (en) * | 2018-04-23 | 2018-12-07 | 南方电网科学研究院有限责任公司 | A kind of method for monitoring and analyzing, device and the equipment of power quality general survey data |
| CN109946737A (en) * | 2019-04-04 | 2019-06-28 | 杭州电力设备制造有限公司 | A kind of optimization packet configuration method and device of distributed generation resource and micro-capacitance sensor |
| CN113131461A (en) * | 2019-12-31 | 2021-07-16 | 新奥数能科技有限公司 | Distributed energy grid connection method and device based on block chain |
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