CN202798010U - Micro-grid distributed power supply layering coordination control system - Google Patents
Micro-grid distributed power supply layering coordination control system Download PDFInfo
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- CN202798010U CN202798010U CN2012203497864U CN201220349786U CN202798010U CN 202798010 U CN202798010 U CN 202798010U CN 2012203497864 U CN2012203497864 U CN 2012203497864U CN 201220349786 U CN201220349786 U CN 201220349786U CN 202798010 U CN202798010 U CN 202798010U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The utility model provides a micro-grid distributed power supply layering coordination control system. The micro-grid distributed power supply comprises a solar cell and an aerogenerator. The micro-grid distributed power supply layering coordination control system comprises a distributed control unit, a local coordination unit and a remote management unit, wherein a controller of the distributed control unit acquires the information and uploads the information about the controller to a local coordination controller of the local coordination unit, and uploads the information to a acquisition server of the remote management unit through the local coordination unit; and a work station of the remote management unit issues a plan operation instruction to the local controller, and coordinatively controls the local controller, and issues the plan operation instruction to the controller. The utility model provides micro-grid distributed power supply layering coordination control system aiming at various distributed power generation characteristics and the grid-tied mode, for performing operation control of the micro-grid distributed power supply.
Description
Technical field
The utility model belongs to little operation of power networks control technology field, is specifically related to a kind of little electrical network distributed power source hierarchical coordinative control system.
Background technology
Little electrical network (Micro-Grid) also is translated into microgrid, is a kind of new network structure, is the system unit that one group of little power supply, load, energy-storage system and control device consist of.Little electrical network is an autonomous system that can realize oneself's control, protection and management, both can be incorporated into the power networks with external electrical network, also can isolated operation.Little electrical network is a concept of relatively traditional large electrical network, means the network that a plurality of distributed power sources and related load thereof form according to certain topological structure, and is associated to conventional electrical network by static switch.Exploitation and extend the extensive access that little electrical network can fully promote distributed power source and regenerative resource realizes the highly reliable supply to load various energy resources form, is a kind of effective means of the active power distribution network of realization, is that traditional electrical network is to the intelligent grid transition.
Little electrical network refers to compile the small-sized electric system of being transported to that forms by distributed power source, energy storage device, energy conversion device, relevant load and monitoring, protective device.Power supply in little electrical network mostly is the less distributed power source of capacity, the small unit that namely contains the power electronics interface comprises miniature gas turbine, fuel cell, photovoltaic cell, small-sized wind power generator group and the energy storage devices such as super capacitor, flywheel and storage battery.They are connected on user's side, have that cost is low, voltage is low and pollute the characteristics such as little.
Little electrical network can solve effectively, at low cost distributed energy, load and energy storage etc. in the high permeability situation with power distribution network operational reliability problem, and satisfied speciality electricity consumption requirement to the specific user, be conducive to promote the development and utilization of distributed power source, improve the comprehensive utilization of energy benefit, guarantee that power grid security is reliable.
Multi-form little electrical network has different power supply characteristics and part throttle characteristics, and it is different greatly that its operational mode and operation characteristic and traditional electrical network have, such as solar energy, wind power generation, because the restriction of natural conditions embodies intermittence, randomness; The mode that is connected to the grid of these distributed power sources also is in the majority with power electronic device, and the control characteristic of power electronic device is different from the breaking characteristics of ordinary tap, circuit breaker.Distributed power source mainly is intended for the low-voltage customer side, is local power load service on the spot, and load also embodies numerous different application characteristics.
Since the different qualities of its distributed power source and load, aspect little operation of power networks control, need to be for the operation control system of distributed power source characteristic and part throttle characteristics.One slightly operation of power networks control system has obtained application in demonstration project, but the mode that substantially follows original distribution management system, fail systematically power generation characteristics in conjunction with different distributions formula power supply, cause the advantage of little electrical network to can not get performance, energy can not get effectively utilizing and optimizing, and has restricted to a certain extent the promotion and application of distributed power source.
The utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of little electrical network distributed power source hierarchical coordinative control system, for different distributions formula power supply power generation characteristics and and net mode, propose little electrical network distributed power source hierarchical coordinative control system, carry out the operation control of little electrical network distributed power source.
To achieve these goals, the utility model is taked following scheme:
A kind of little electrical network distributed power source hierarchical coordinative control system, described little electrical network distributed power source comprises solar cell and wind-driven generator; Described system comprises decentralized control unit, on the spot coordination unit and telemanagement unit; The controller Information Monitoring of decentralized control unit also is uploaded to the on the spot on the spot tuning controller of coordination unit with controller information, is uploaded to the acquisition server of telemanagement unit by described on the spot tuning controller again; The work station of described telemanagement unit is assigned plans operating instruction to regard to described Local Controller, coordinates control by described Local Controller, and the operating instruction of assigning plans is given described controller.
Described controller information comprises operational mode, voltage, electric current, active power, reactive power and the frequency of described controller, and described plan operating instruction comprises plan power generation command and control command.
Described decentralized control unit comprises controller, and described controller comprises distributed electrical source controller, energy-storage battery controller, load governor and from net/net-connected controller, described distributed electrical source controller comprises controller for solar and wind power generation controller.
Described solar power generation controller comprises DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, liquid crystal display, communication interface and control output interface; The solar cell direct current is converted to the utility network power supply through described DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, by control output interface and liquid crystal display described DC/AC energy converter is controlled respectively and shown that described solar power generation controller communicates by communication interface.
Described wind power generation controller comprises AC/DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, liquid crystal display, communication interface and control output interface; The electric energy of wind-driven generator is converted to the utility network power supply through described AC/DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described AC/DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described AC/DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, by described control output interface and liquid crystal display described AC/DC/AC energy converter is controlled respectively and shown; Described wind power generation controller communicates by communication interface.
Described energy-storage battery controller comprises DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, liquid crystal display, communication interface and control output interface; The electric energy of energy-storage battery is converted to the utility network power supply through described DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, by described control output interface and liquid crystal display described DC/AC energy converter is controlled respectively and shown that described energy-storage battery controller communicates by communication interface.
Described load governor comprises transducer, A/D converter, CPU processor, memory, liquid crystal display, communication interface and control output interface; The voltage and current signal of described transducer collection load, described A/D converter is converted to digital signal with the voltage and current signal of described load, and input described CPU processor and carry out Digital Signal Processing, split to close by described control output interface and liquid crystal display respectively and carry out deciliter control and show that described load governor communicates by communication interface.
Described on the spot tuning controller comprise CPU processor, memory, liquid crystal display, communication interface, to the time interface and control output interface; Described to the time interface externally unify to the time, external information is successively by described CPU processor, memory and liquid crystal display and communication interface, carry out information processing, storage, demonstration and communicate by letter, described CPU processor is controlled output to described control output interface.
Described telemanagement unit comprises acquisition server and passes through the connected work station of communication network; Described acquisition server gathers described controller information, and described work station is analyzed and processed Information Monitoring, and the operating instruction of assigning plans is to described Local Controller.
Compared with prior art, the beneficial effects of the utility model are:
1. this system is mainly by telemanagement unit, on the spot hierarchy management and control between coordination unit and the decentralized control unit, distributed power source in little electrical network, energy storage and load are carried out scientific management, the plan power generation dispatching realizes rationally power supply, satisfies little network load power demands;
2. by decentralized control unit, the on the spot communication between coordination unit and the telemanagement unit, realize turning to be incorporated into the power networks, to be incorporated into the power networks and be incorporated into the power networks from network operation, from net leaving net;
This system can realize top-down planned operation or from bottom to top provisional/operation of sudden operation control;
4. can effectively control and to solve power distribution network operational reliability problem, and satisfied speciality electricity consumption requirement to the specific user, improve the comprehensive utilization benefit of all kinds of energy, have great potential at aspects such as reducing energy consumption, customization electric power, raising system reliability and flexibility, have very large economic results in society;
The utility model provide effectively, little electrical network distributed power source coordinated control system of practical, science, little electrical network to the distributed power source that comprises different power generation characteristics carries out hierarchical coordinative control, satisfy workload demand, improve with energy benefit and electricity consumption reliability, be conducive to promote applying of distributed power source.
Description of drawings
Fig. 1 is the Organization Chart of little electrical network distributed power source hierarchical coordinative control system;
Fig. 2 is little electrical network distributed power source hierarchical coordinative control system embodiment Organization Chart.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Such as Fig. 1 and Fig. 2, a kind of little electrical network distributed power source hierarchical coordinative control system, described little electrical network distributed power source comprises solar cell and wind-driven generator; Described system comprises decentralized control unit, on the spot coordination unit and telemanagement unit; The controller Information Monitoring of decentralized control unit also is uploaded to the on the spot on the spot tuning controller of coordination unit with controller information, is uploaded to the acquisition server of telemanagement unit by described on the spot tuning controller again; The work station of described telemanagement unit is assigned plans operating instruction to regard to described Local Controller, coordinates control by described Local Controller, and the operating instruction of assigning plans is given described controller.
Described controller information comprises operational mode, voltage, electric current, active power, reactive power and the frequency of described controller, and described plan operating instruction comprises plan power generation command and control command.
Described decentralized control unit comprises controller, and described controller comprises distributed electrical source controller, energy-storage battery controller, load governor and from net/net-connected controller, described distributed electrical source controller comprises controller for solar and wind power generation controller.These controllers are accepted the on the spot execution instruction of coordination unit, and to distributed power source, energy-storage battery generate electricity adjusting and the switching of meritorious, idle, voltage and frequency, load governor is according to the instruction switching load of tuning controller on the spot; Distributed power source, energy-storage battery controller can be realized respectively PQ pattern, the control of V/f pattern according to little operation of power networks requirement, reach the adjusting of voltage, frequency and power, realize little power grid operation, satisfy the load need for electricity.When being incorporated into the power networks, distributed electrical source controller, energy-storage battery controller are all controlled the PQ pattern, and required voltage, frequency support and provided by utility network.During from network operation, select the metastable energy-storage battery of generated output (selecting the energy type energy-storage battery, such as lithium battery) to support as voltage and the frequency of little electrical network; At this moment, the energy-storage battery controller as master controller (if any several energy-storage batteries, then select the larger energy type energy-storage battery of capacity) be operated in the V/f pattern, keep voltage, frequency in little electrical network, distributed electrical source controller, energy-storage battery controller (the energy-storage battery controller except being operated in the V/f pattern is outer) are operated in the PQ pattern, generate electricity according to generation schedule.
Described solar power generation controller comprises DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, liquid crystal display, communication interface and control output interface; The solar cell direct current is converted to the utility network power supply through described DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, by control output interface and liquid crystal display described DC/AC energy converter is controlled respectively and shown that described solar power generation controller communicates by communication interface.
Described wind power generation controller comprises AC/DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, liquid crystal display, communication interface and control output interface; The electric energy of wind-driven generator is converted to the utility network power supply through described AC/DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described AC/DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described AC/DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, by described control output interface and liquid crystal display described AC/DC/AC energy converter is controlled respectively and shown; Described wind power generation controller communicates by communication interface.
Described energy-storage battery controller comprises DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, liquid crystal display, communication interface and control output interface; The electric energy of energy-storage battery is converted to the utility network power supply through described DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, by described control output interface and liquid crystal display described DC/AC energy converter is controlled respectively and shown that described energy-storage battery controller communicates by communication interface.
Described load governor comprises transducer, A/D converter, CPU processor, memory, liquid crystal display, communication interface and control output interface; The voltage and current signal of described transducer collection load, described A/D converter is converted to digital signal with the voltage and current signal of described load, and input described CPU processor and carry out Digital Signal Processing, split to close by described control output interface and liquid crystal display respectively and carry out deciliter control and show that described load governor communicates by communication interface.
Coordination unit comprises on the spot tuning controller on the spot, on the spot tuning controller comprise CPU processor, memory, liquid crystal display, communication interface, to the time interface and control output interface; Described to the time interface externally unify to the time, external information is successively by described CPU processor, memory and liquid crystal display and communication interface, carry out information processing, storage, demonstration and communicate by letter, described CPU processor is controlled output to described control output interface.
Described telemanagement unit comprises acquisition server and passes through the connected work station of communication network; Described acquisition server gathers described controller information, and described work station is analyzed and processed Information Monitoring, and the operating instruction of assigning plans is to described Local Controller.The telemanagement unit is information management and control centre, control in real time the operation conditions of distributed power source, energy storage, load in little electrical network, utilize distributed power source history generating situation, natural weather situation, the energy-storage battery charge-discharge characteristic is predicted and dispatch.Wherein acquisition server gathers electrical network and the equipment operation information in little electrical network, to voltage, electric current, power, frequency in real time, quasi real time manage and analyze with historical information, draw generating prediction and the actual schedule of little electrical network distributed power source, propose the generated output of each distributed power source and energy-storage battery.Planned from net when being incorporated into the power networks, the telemanagement unit sends instruction to coordinating on the spot control unit, sends instructions to from net/net-connected controller by coordinating on the spot key-course, carries out from the net/switching of being incorporated into the power networks; From when net, accept the direct separating brake of instruction separating brake from net/net-connected controller, but when being incorporated into the power networks, obtain reclosing command after, need examine and carry out asynchronous switch-on the same period.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although with reference to above-described embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement embodiment of the present utility model, and do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (9)
1. little electrical network distributed power source hierarchical coordinative control system, described little electrical network distributed power source comprises solar cell and wind-driven generator; It is characterized in that: described system comprises decentralized control unit, on the spot coordination unit and telemanagement unit; The controller Information Monitoring of decentralized control unit also is uploaded to the on the spot on the spot tuning controller of coordination unit with controller information, is uploaded to the acquisition server of telemanagement unit by described on the spot tuning controller again; The work station of described telemanagement unit is assigned plans operating instruction to regard to described Local Controller, coordinates control by described Local Controller, and the operating instruction of assigning plans is given described controller.
2. little electrical network distributed power source hierarchical coordinative control system according to claim 1, it is characterized in that: described controller information comprises operational mode, voltage, electric current, active power, reactive power and the frequency of described controller, and described plan operating instruction comprises plan power generation command and control command.
3. little electrical network distributed power source hierarchical coordinative control system according to claim 1, it is characterized in that: described decentralized control unit comprises controller, described controller comprises distributed electrical source controller, energy-storage battery controller, load governor and from net/net-connected controller, described distributed electrical source controller comprises controller for solar and wind power generation controller.
4. little electrical network distributed power source hierarchical coordinative control system according to claim 3, it is characterized in that: described solar power generation controller comprises DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, demonstration liquid crystal, communication interface and control output interface; The solar cell direct current is converted to the utility network power supply through described DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, respectively by the control output interface with show that liquid crystal controls described DC/AC energy converter and show that described solar power generation controller communicates by communication interface.
5. little electrical network distributed power source hierarchical coordinative control system according to claim 3, it is characterized in that: described wind power generation controller comprises AC/DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, demonstration liquid crystal, communication interface and control output interface; The electric energy of wind-driven generator is converted to the utility network power supply through described AC/DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described AC/DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described AC/DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, respectively by described control output interface with show that liquid crystal controls described AC/DC/AC energy converter and show; Described wind power generation controller communicates by communication interface.
6. little electrical network distributed power source hierarchical coordinative control system according to claim 3, it is characterized in that: described energy-storage battery controller comprises DC/AC energy converter, filter, transducer, A/D converter, CPU processor, memory, demonstration liquid crystal, communication interface and control output interface; The electric energy of energy-storage battery is converted to the utility network power supply through described DC/AC energy converter, described filter; Described transducer gathers the voltage and current signal of described DC/AC energy converter, described A/D converter is converted to digital signal with the voltage and current signal of described DC/AC energy converter, and input described CPU processor and carry out Digital Signal Processing, respectively by described control output interface with show that liquid crystal controls described DC/AC energy converter and show that described energy-storage battery controller communicates by communication interface.
7. little electrical network distributed power source hierarchical coordinative control system according to claim 3, it is characterized in that: described load governor comprises transducer, A/D converter, CPU processor, memory, demonstration liquid crystal, communication interface and control output interface; The voltage and current signal of described transducer collection load, described A/D converter is converted to digital signal with the voltage and current signal of described load, and input described CPU processor and carry out Digital Signal Processing, split to close by described control output interface and demonstration liquid crystal respectively and carry out deciliter control and show that described load governor communicates by communication interface.
8. little electrical network distributed power source hierarchical coordinative control system according to claim 1 is characterized in that: described on the spot tuning controller comprise CPU processor, memory, demonstration liquid crystal, communication interface, to the time interface and control output interface; Described to the time interface externally unify to the time, external information is successively by described CPU processor, memory and demonstration liquid crystal and communication interface, carry out information processing, storage, demonstration and communicate by letter, described CPU processor is controlled output to described control output interface.
9. little electrical network distributed power source hierarchical coordinative control system according to claim 1 is characterized in that: described telemanagement unit comprises acquisition server and by the connected work station of communication network; Described acquisition server gathers described controller information, and described work station is analyzed and processed Information Monitoring, and the operating instruction of assigning plans is to described Local Controller.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102832706A (en) * | 2012-07-18 | 2012-12-19 | 中国电力科学研究院 | Distributed power stratified coordination control system of microgrid and method |
CN103368174A (en) * | 2013-06-19 | 2013-10-23 | 许继集团有限公司 | Micro-grid frequency adjustment control method and system |
CN103543721A (en) * | 2013-10-18 | 2014-01-29 | 国家电网公司 | Microgrid hierarchical control system modeling method meeting IEC61850 standard |
CN104113085A (en) * | 2014-08-05 | 2014-10-22 | 华东理工大学 | Micro-grid energy optimization management method |
WO2016023287A1 (en) * | 2014-08-11 | 2016-02-18 | 国家电网公司 | System and method for controlling accessing of distributed power supply to power distribution network |
CN103543721B (en) * | 2013-10-18 | 2016-11-30 | 国家电网公司 | A kind of modeling method of the micro-capacitance sensor hierarchy system meeting IEC61850 specification |
CN114142506A (en) * | 2021-11-25 | 2022-03-04 | 三一重能股份有限公司 | Energy storage power supply vehicle control method and device and energy storage power supply vehicle |
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2012
- 2012-07-18 CN CN2012203497864U patent/CN202798010U/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102832706A (en) * | 2012-07-18 | 2012-12-19 | 中国电力科学研究院 | Distributed power stratified coordination control system of microgrid and method |
CN102832706B (en) * | 2012-07-18 | 2015-07-22 | 中国电力科学研究院 | Distributed power stratified coordination control system of microgrid and method |
CN103368174A (en) * | 2013-06-19 | 2013-10-23 | 许继集团有限公司 | Micro-grid frequency adjustment control method and system |
CN103543721A (en) * | 2013-10-18 | 2014-01-29 | 国家电网公司 | Microgrid hierarchical control system modeling method meeting IEC61850 standard |
CN103543721B (en) * | 2013-10-18 | 2016-11-30 | 国家电网公司 | A kind of modeling method of the micro-capacitance sensor hierarchy system meeting IEC61850 specification |
CN104113085A (en) * | 2014-08-05 | 2014-10-22 | 华东理工大学 | Micro-grid energy optimization management method |
WO2016023287A1 (en) * | 2014-08-11 | 2016-02-18 | 国家电网公司 | System and method for controlling accessing of distributed power supply to power distribution network |
CN114142506A (en) * | 2021-11-25 | 2022-03-04 | 三一重能股份有限公司 | Energy storage power supply vehicle control method and device and energy storage power supply vehicle |
CN114142506B (en) * | 2021-11-25 | 2023-08-22 | 三一重能股份有限公司 | Energy storage power supply vehicle control method and device and energy storage power supply vehicle |
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