CN105162249A - Monitoring method and system for electric energy quality of distributed power generation system - Google Patents
Monitoring method and system for electric energy quality of distributed power generation system Download PDFInfo
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- CN105162249A CN105162249A CN201510527560.7A CN201510527560A CN105162249A CN 105162249 A CN105162249 A CN 105162249A CN 201510527560 A CN201510527560 A CN 201510527560A CN 105162249 A CN105162249 A CN 105162249A
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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
- 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
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention discloses a monitoring method for electric energy quality of a distributed power generation system. The monitoring method comprises the steps of: receiving electric energy quality data of a corresponding power generation system sent from an electric energy quality monitoring apparatus; preprocessing the electric energy quality data to obtain electric energy quality steady state data and electric energy quality transient state data; and displaying the electric energy quality steady state data and the electric energy quality transient state data. The method can monitor the electric energy quality of each power generation system in the distributed power generation system and can display the electric energy quality data for users to check conveniently. The invention also discloses a monitoring system for electric energy quality of the distributed power generation system
Description
Technical field
The present invention relates to electric field, particularly a kind of monitoring method of the quality of power supply of distributed generation system and system.
Background technology
The centralized single electric power system that existing whole world electric power system is is principal character with large-sized unit, bulk power grid, high voltage.Although the electric load in the whole world 90% all concentrates single bulk power grid to power by this, the quality and safety reliability requirement of society to the energy and supply of electric power is more and more higher, and bulk power grid can not meet this requirement due to the defect of self.The disturbance produced due to the fault of any point in bulk power grid all can affect greatly whole electrical network, may cause large-area power-cuts or even Tie-line Opening, cause catastrophic effect time serious.
And bulk power system and distributed generation system to combine be reduce investment outlay, reduce energy consumption, improve the main method of security of system and flexibility.
Wherein, distributed power generation refers at the less generating set (generally lower than 30MW) of the on-the-spot or close electricity consumption situ configuration of user, to meet the needs of specific user, support the economical operation of existing power distribution network, or meet the requirement of these two aspects simultaneously.These little units comprise fuel cell, small size gas turbine, and low profile photovoltaic generates electricity, small-sized wind light mutual complementing power generation, or the mixing arrangement of gas turbine and fuel cell.Owing to improve reliability of service and power quality near user.But the dispersed placement of electricity generation system, therefore, needs the monitoring of the quality of power supply to distributed generation system.
Summary of the invention
The object of this invention is to provide a kind of monitoring method of the quality of power supply of distributed generation system, the method can be monitored the quality of power supply in each electricity generation system of distributed generation system, and can show, and facilitates user to check; Another object of the present invention is to provide a kind of monitoring system of the quality of power supply of distributed generation system.
For solving the problems of the technologies described above, the invention provides a kind of monitoring method of the quality of power supply of distributed generation system, comprising:
Receive the power quality data of the corresponding electricity generation system that equipment for monitoring power quality sends;
Described power quality data is carried out preliminary treatment, obtains quality of power supply steady state data and Power Quality Transient Disturbance;
Described quality of power supply steady state data and Power Quality Transient Disturbance are shown.
Wherein, also comprise:
Add up the quality of power supply steady state data and Power Quality Transient Disturbance that obtain, and form data and curves.
Wherein, also comprise:
The environment of each electricity generation system in distributed generation system is monitored, obtains environmental monitoring data.
Wherein, also comprise:
Metering is carried out to the generator unit in each distributed generation system and obtains energy output.
Wherein, also comprise:
Generating efficiency is calculated according to described energy output, environmental monitoring data and circuit power quality data.
Wherein, also comprise:
Described energy output, environmental monitoring data and circuit power quality data are added up with the form of form.
The present invention also provides a kind of monitoring system of the quality of power supply of distributed generation system, comprising:
Receiver module, for receiving the power quality data of the corresponding electricity generation system that equipment for monitoring power quality sends;
Processing module, for described power quality data is carried out preliminary treatment, obtains quality of power supply steady state data and Power Quality Transient Disturbance;
Display module, for showing described quality of power supply steady state data and Power Quality Transient Disturbance.
Wherein, also comprise:
Statistical module, adds up the quality of power supply steady state data and Power Quality Transient Disturbance that obtain, and forms data and curves.
Wherein, also comprise:
Environment monitoring module, for monitoring the environment of each electricity generation system in distributed generation system, obtains environmental monitoring data.
Wherein, also comprise:
Metering module, obtains energy output for carrying out metering to the generator unit in each distributed generation system.
The monitoring method of the quality of power supply of distributed generation system provided by the present invention, comprising: the power quality data receiving the corresponding electricity generation system that equipment for monitoring power quality sends; Described power quality data is carried out preliminary treatment, obtains quality of power supply steady state data and Power Quality Transient Disturbance; Described quality of power supply steady state data and Power Quality Transient Disturbance are shown.
The power quality data that the method is collected by the monitoring device of the quality of power supply receiving each electricity generation system in distributed generation system; And preliminary treatment is carried out to these power quality datas, obtain the quality of power supply steady state data and the Power Quality Transient Disturbance that reflect the quality of power supply, conveniently the checking of technical staff, is shown quality of power supply steady state data and Power Quality Transient Disturbance by display screen.
The method can be monitored the quality of power supply in each electricity generation system of distributed generation system, and can show, facilitate technical staff to check, technical staff can be made to get information about quality of power supply situation in each electricity generation system of distributed generation system at any time.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The flow chart of the monitoring method of the quality of power supply of the distributed generation system that Fig. 1 provides for the embodiment of the present invention;
The structured flowchart of the monitoring system of the quality of power supply of the distributed generation system that Fig. 2 provides for the embodiment of the present invention.
Embodiment
Core of the present invention is to provide a kind of monitoring method of the quality of power supply of distributed generation system, and the method can be monitored the quality of power supply in each electricity generation system of distributed generation system, and can show, and facilitates user to check; Another core of the present invention is to provide a kind of monitoring system of the quality of power supply of distributed generation system.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the flow chart of the monitoring method of the quality of power supply of the distributed generation system that Fig. 1 provides for the embodiment of the present invention; The method can comprise:
The power quality data of the corresponding electricity generation system that step s100, reception equipment for monitoring power quality send;
Wherein, due to each electricity generation system all have electric energy quality monitoring can, the power quality data that can come on detection line by the equipment for monitoring power quality of configuration.
But because each electricity generation system in distribution electricity generation system is scattering device, therefore, in order to the power quality data on the circuit of each electricity generation system of understanding that can be real-time, the monitoring system of the quality of power supply of a distributed generation system is set, the power quality data of the corresponding electricity generation system that equipment for monitoring power quality all in distributed generation system can be sent.
Step s110, described power quality data is carried out preliminary treatment, obtain quality of power supply steady state data and Power Quality Transient Disturbance;
Wherein, in order to more clear, the quality of power supply situation grasped accurately on the circuit of each electricity generation system in distributed generation system, need to carry out preliminary treatment to the power quality data of each electricity generation system received, obtain quality of power supply steady state data corresponding to each electricity generation system and Power Quality Transient Disturbance.Technical staff can the quality of power supply steady state data corresponding by each electricity generation system calculated and Power Quality Transient Disturbance.Clearly know the quality of power supply situation on the circuit of each electricity generation system.The electricity generation system do not met the demands can be adjusted timely.Improve the generating efficiency of whole distributed generation system and the integrated of whole distributed generation system.
Step s120, described quality of power supply steady state data and Power Quality Transient Disturbance to be shown.
Wherein, for the ease of quality of power supply steady state data and Power Quality Transient Disturbance that technical staff clearly sees each electricity generation system, these data are shown in display screen.Easy to use.
Based on technique scheme, the monitoring method of the quality of power supply of the distributed generation system that the embodiment of the present invention provides, the power quality data that the method is collected by the monitoring device of the quality of power supply receiving each electricity generation system in distributed generation system; And preliminary treatment is carried out to these power quality datas, obtain the quality of power supply steady state data and the Power Quality Transient Disturbance that reflect the quality of power supply, conveniently the checking of technical staff, is shown quality of power supply steady state data and Power Quality Transient Disturbance by display screen.The method can be monitored the quality of power supply in each electricity generation system of distributed generation system, and can show, facilitate technical staff to check, technical staff can be made to get information about quality of power supply situation in each electricity generation system of distributed generation system at any time.
Preferably, the embodiment of the present invention provides another said method to comprise:
Add up the quality of power supply steady state data and Power Quality Transient Disturbance that obtain, and form data and curves.
Wherein, by adding up the quality of power supply steady state data and Power Quality Transient Disturbance that obtain, and form data and curves, the technical staff that makes that like this can be convenient grasps the quality of power supply situation of each electricity generation system, and also can carry out an estimation to later quality of power supply situation according to data and curves.Also can find out some data trends in power station from the power quality data curve of each electricity generation system, also can carry out the analysis of causes to the electricity generation system showing decline, find decrease reason, the fault message of electricity generation system can be found as early as possible.
And the form of expression of data and curves is also more directly perceived, technical staff can be allowed more fast to grasp the quality of power supply situation of each electricity generation system than data message.
Preferably, the embodiment of the present invention provides a said method again to comprise:
The environment of each electricity generation system in distributed generation system is monitored, obtains environmental monitoring data.
Wherein, environment monitoring function mainly can comprise: the information such as global radiation, total scattering, wind speed, wind direction, outdoor temperature humidity, air pressure.
Not only can be understood in detail the environmental information of each electricity generation system by these data, certain explanation can also be carried out by the environmental monitoring data of each electricity generation system some exceptions to the power quality data of each electricity generation system.
Preferably, the embodiment of the present invention provides another said method to comprise:
Metering is carried out to the generator unit in each distributed generation system and obtains energy output.
Wherein, the energy output of each electricity generation system can be known.May be used for marketing, statistics and analyze.
Preferably, the data obtained by these embodiments above-mentioned, can also be used for:
Generating efficiency is calculated according to described energy output, environmental monitoring data and circuit power quality data.
Described energy output, environmental monitoring data and circuit power quality data can also be added up with the form of form.
In the process of statistics, can also modify to these data for the technical staff having authority, delete, the operation such as preservation.Namely form by defining sampled value, statistical value etc., can show the indices that new forms of energy run in table form, and supports the functions such as amendment, preservation, deletion.
By adding up these data, certain help can be provided to the analysis carried out later.
Embodiments provide the monitoring method of the quality of power supply of distributed generation system, can be monitored the quality of power supply in each electricity generation system of distributed generation system by said method.
Be introduced the monitoring system of the quality of power supply of the distributed generation system that the embodiment of the present invention provides below, the monitoring system of the quality of power supply of distributed generation system described below can mutual corresponding reference with the monitoring method of the quality of power supply of above-described distributed generation system.
Please refer to Fig. 2, the structured flowchart of the monitoring system of the quality of power supply of the distributed generation system that Fig. 2 provides for the embodiment of the present invention, this system can comprise:
Receiver module 100, for receiving the power quality data of the corresponding electricity generation system that equipment for monitoring power quality sends;
Processing module 200, for described power quality data is carried out preliminary treatment, obtains quality of power supply steady state data and Power Quality Transient Disturbance;
Display module 300, for showing described quality of power supply steady state data and Power Quality Transient Disturbance.
Preferably, the embodiment of the present invention provides another said system to comprise:
Statistical module, adds up the quality of power supply steady state data and Power Quality Transient Disturbance that obtain, and forms data and curves.
Preferably, the embodiment of the present invention provides a said system again to comprise:
Environment monitoring module, for monitoring the environment of each electricity generation system in distributed generation system, obtains environmental monitoring data.
Preferably, the embodiment of the present invention provides another said method to comprise:
Metering module, obtains energy output for carrying out metering to the generator unit in each distributed generation system.
Preferably, statistical module can also be comprised, for described energy output, environmental monitoring data and circuit power quality data being added up with the form of form.
Preferably, efficiency module can also be comprised, for calculating generating efficiency according to described energy output, environmental monitoring data and circuit power quality data.
In specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above the monitoring method of the quality of power supply of distributed generation system provided by the present invention and system are described in detail.Apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection range of the claims in the present invention.
Claims (10)
1. a monitoring method for the quality of power supply of distributed generation system, is characterized in that, comprising:
Receive the power quality data of the corresponding electricity generation system that equipment for monitoring power quality sends;
Described power quality data is carried out preliminary treatment, obtains quality of power supply steady state data and Power Quality Transient Disturbance;
Described quality of power supply steady state data and Power Quality Transient Disturbance are shown.
2. monitoring method as claimed in claim 1, is characterized in that, also comprise:
Add up the quality of power supply steady state data and Power Quality Transient Disturbance that obtain, and form data and curves.
3. monitoring method as claimed in claim 1, is characterized in that, also comprise:
The environment of each electricity generation system in distributed generation system is monitored, obtains environmental monitoring data.
4. monitoring method as claimed in claim 3, is characterized in that, also comprise:
Metering is carried out to the generator unit in each distributed generation system and obtains energy output.
5. monitoring method as claimed in claim 4, is characterized in that, also comprise:
Generating efficiency is calculated according to described energy output, environmental monitoring data and circuit power quality data.
6. monitoring method as claimed in claim 5, is characterized in that, also comprise:
Described energy output, environmental monitoring data and circuit power quality data are added up with the form of form.
7. a monitoring system for the quality of power supply of distributed generation system, is characterized in that, comprising:
Receiver module, for receiving the power quality data of the corresponding electricity generation system that equipment for monitoring power quality sends;
Processing module, for described power quality data is carried out preliminary treatment, obtains quality of power supply steady state data and Power Quality Transient Disturbance;
Display module, for showing described quality of power supply steady state data and Power Quality Transient Disturbance.
8. monitoring method as claimed in claim 7, is characterized in that, also comprise:
Statistical module, adds up the quality of power supply steady state data and Power Quality Transient Disturbance that obtain, and forms data and curves.
9. monitoring method as claimed in claim 8, is characterized in that, also comprise:
Environment monitoring module, for monitoring the environment of each electricity generation system in distributed generation system, obtains environmental monitoring data.
10. monitoring method as claimed in claim 9, is characterized in that, also comprise:
Metering module, obtains energy output for carrying out metering to the generator unit in each distributed generation system.
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| CN201510527560.7A CN105162249A (en) | 2015-08-25 | 2015-08-25 | Monitoring method and system for electric energy quality of distributed power generation system |
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| CN201510527560.7A CN105162249A (en) | 2015-08-25 | 2015-08-25 | Monitoring method and system for electric energy quality of distributed power generation system |
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2015
- 2015-08-25 CN CN201510527560.7A patent/CN105162249A/en active Pending
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| CN201130860Y (en) * | 2007-12-19 | 2008-10-08 | 华东电网有限公司 | Built-in converting station multi-cycle dynamic electric energy quality on-line analysis apparatus |
| CN102053202A (en) * | 2009-11-10 | 2011-05-11 | 北京博电新力电力系统仪器有限公司 | Smart grid-oriented power quality monitoring system and method |
| CN102355057A (en) * | 2011-09-25 | 2012-02-15 | 国网电力科学研究院 | Computer monitoring method for microgrid system |
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