CN203178388U - Micro-grid test platform based on RTDS (Real Time Digital Simulator) - Google Patents

Micro-grid test platform based on RTDS (Real Time Digital Simulator) Download PDF

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Publication number
CN203178388U
CN203178388U CN 201320213212 CN201320213212U CN203178388U CN 203178388 U CN203178388 U CN 203178388U CN 201320213212 CN201320213212 CN 201320213212 CN 201320213212 U CN201320213212 U CN 201320213212U CN 203178388 U CN203178388 U CN 203178388U
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CN
China
Prior art keywords
rtds
micro
grid
circuit board
integrated circuit
Prior art date
Application number
CN 201320213212
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Chinese (zh)
Inventor
许伟
周志超
潘磊
张启应
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国电联合动力技术有限公司
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Priority to CN 201320213212 priority Critical patent/CN203178388U/en
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Publication of CN203178388U publication Critical patent/CN203178388U/en

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Abstract

The utility model relates to a micro-grid test platform based on an RTDS (Real Time Digital Simulator). The micro-grid test platform comprises an RTDS simulation system, an interface cabinet and a micro-grid control system, wherein the RTDS simulation system is connected with the micro-grid control system through the interface cabinet; the RTDS simulation system is used for constructing a micro-grid primary main circuit, and providing a real-time simulation environment; the interface cabinet is used for providing actual engineering interfaces between the RTDS simulation system and the micro-grid control system; and the micro-grid control system is used for carrying out the energy management of the whole micro-grid system. According to the utility model, a simulation model of the micro-grid primary main circuit is built on the RTDS, and the time and dimension of the simulation model are very similar to that of an actual power system, so that the state of the actual power system can be represented in a realistic way, parameters can be adjusted conveniently and quickly, and various working conditions of the whole micro-grid system can be simulated at any time, thereby greatly improving the efficiency of micro-grid tests.

Description

A kind of little electrical network experimental test platform based on RTDS

Technical field

The utility model relates to little electric power network technique field, especially relates to a kind of little electrical network experimental test platform based on RTDS.

Background technology

In order to bring into play distributed power source based on regenerative resource and new forms of energy to greatest extent in the advantage aspect economic benefit and the environmental protection; the little electric power network technique of development is all vigorously advocated in countries in the world, and begins to build little electrical network laboratory and the demonstration project that differs from one another.In view of the diversity of micro-grid system composition and the dirigibility of the method for operation; before little electrical network project is carried out the field conduct uniting and adjustment; for correctness and the rationality of its control of comprehensive assessment and defencive function and parameter configuration, need take suitable simulation means to carry out the correlation function checking usually.Use traditional physical simulation mode to make up micro-grid system, must face the cost of equipment height, problem such as floor area is big, delivery cycle is long, extensibility and poor compatibility; Use traditional non real-time Digital Simulation, directly carry out on-site verification, can face that uniting and adjustment have a big risk, problem such as long in time limit.

The RTDS full name is Real Time Digital Simulator (Real Time Digital Simulator); its principal feature is that the time scale of its analogue system is very approaching with practical power systems; can represent the state of practical power systems truly, and be widely used at power domains such as D.C. high voltage transmission and relay protections.

This shows, use traditional non real-time Digital Simulation, little electrical network function is verified, have tangible deficiency and defective in the use, demand further improvement urgently.Therefore, how to found that a kind of cost of investment is low, the construction period is short, the operation simple and flexible, reduce the little electrical network experimental test platform based on RTDS of the field conduct risk of little electrical network project, real one of the current important research and development problem that belongs to.

The utility model content

The technical problems to be solved in the utility model provides a kind of little electrical network experimental test platform based on RTDS, make it improve the efficient of little electrical network experimental test, effectively verify correctness and the harmony of little power grid control device interface, find early and handling problem in time, reduce the field adjustable cycle, improve the efficiency of research and development of product, thereby overcome the deficiencies in the prior art.

For solving the problems of the technologies described above, a kind of little electrical network experimental test platform based on RTDS of the utility model comprises RTDS analogue system, interface screen cabinet and little grid control system, and wherein, the RTDS analogue system is connected with little grid control system by interface screen cabinet; The RTDS analogue system is used for building major loop of little electrical network, and the real-time simulation environment is provided; Interface screen cabinet is used for providing actual engineering interface between RTDS analogue system and the little grid control system; Little grid control system is used for realizing whole micro-grid system energy management.

Further, described RTDS analogue system comprises computer workstation, communication interface integrated circuit board and real-time parallel processor; Described computer workstation is connected with the real-time parallel processor by the communication interface integrated circuit board; Computer workstation is used for building the major loop realistic model of little electrical network that comprises various distributed power sources, energy storage device, energy converter, relevant load and line switching; The communication interface integrated circuit board is used for the information communication between computer workstation and the real-time parallel processor; Described real-time parallel processor is connected with interface screen cabinet.

Described interface screen cabinet comprises analog quantity output integrated circuit board, digital quantity input integrated circuit board and digital quantity output integrated circuit board; Analog quantity output integrated circuit board is for the output interface that combined-voltage, current signal are provided; Digital quantity input integrated circuit board and numeral output integrated circuit board are used for providing the status signal of equipment, switch and the input and output of command signal and pwm pulse control signal.

Described little grid control system comprises upper strata central controller, bottom floor units controller and communication bus; The upper strata central controller is used for the energy management of whole little electrical network; The bottom floor units controller is used for the current transformer control of each distributed power source; Communication bus is used between upper strata central controller and the bottom floor units controller and micro-grid system and interface shield communication between the cabinet.

After adopting above design, the utility model has following advantage compared with the prior art:

1. the utility model is based upon the realistic model of a major loop of little electrical network on the RTDS, its simulation time yardstick is very approaching with practical power systems, can represent the state of practical power systems truly, and its parameter adjustment is convenient and swift, can simulate the various operating conditions of whole micro-grid system at any time, improve the efficient of little electrical network experimental test greatly;

2. the utility model is at the custom-designed interface screen of micro-grid system cabinet, abundant analog quantity and digital quantity input/output interface can be provided, and possess good dirigibility and extensibility, various micro-grid system can be adapted to widely, correctness and the harmony of little power grid control device interface can be effectively verified;

3. the interphase of little grid control system of the utility model reality and its primary equipment is clear, can come to implement at the scene to carry out the correlation function test with interface screen cabinet and complete closed loop test platform of RTDS analogue system composition before by directly transplanting, pinpoint the problems early and processing in time, thereby shortened the field adjustable cycle greatly;

4. the utility model is based on little electrical network experiment test platform of RTDS, be not limited to the experimental test of complete little grid control system, can also be applied to the cell level test of the bottom floor units controller of each distributed power source and energy storage device respectively separately, and the micro-grid system system level testing of central controller at the middle and upper levels, namely be applied to the different development phases of whole little electrical network project, thereby improved the efficiency of research and development of product greatly, effectively shortened the research and development of products cycle.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Description of drawings

Above-mentioned only is the general introduction of technical solutions of the utility model, and for can clearer understanding the utility model, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.

Fig. 1 is that the utility model is formed synoptic diagram based on little electrical network experimental test platform of RTDS.

Embodiment

See also shown in Figure 1ly, a kind of little electrical network experimental test platform based on RTDS of the utility model comprises RTDS analogue system, interface screen cabinet and little grid control system, and wherein, the RTDS analogue system is connected with little grid control system by interface screen cabinet.

The RTDS analogue system comprises computer workstation, communication interface integrated circuit board and real-time parallel processor.This system is used for building the major loop of little electrical network that comprises various distributed power sources, energy storage device, energy converter, relevant load and line switching, and the real-time simulation environment that can truly represent the actual electric network state is provided.

Further, computer workstation is used for building major loop realistic model of little electrical network; The communication interface integrated circuit board is used for the information communication between computer workstation and the real-time parallel processor; The real-time parallel processor is used for the real-time calculating of realistic model and finds the solution.Computer workstation is connected with the real-time parallel processor by the communication interface integrated circuit board, and further is connected with interface screen cabinet.

Interface screen cabinet comprises analog quantity output integrated circuit board, digital quantity input card and digital quantity output integrated circuit board, and this interface screen cabinet is used for providing the actual engineering interface of electric simulation amount and switching value between RTDS analogue system and the little grid control system.

Further, analog quantity output integrated circuit board is for the output interface that combined-voltage, current signal are provided; Digital quantity input integrated circuit board and digital quantity output integrated circuit board are used for providing the status signal of equipment and switch and the input and output interface of command signal and pwm pulse control signal.

Little grid control system comprises upper strata central controller, bottom floor units controller and communication bus.This system is used for realizing voltage-regulation and frequency control and the system capacity management of whole micro-grid system, thereby has guaranteed the reliability service of little electrical network, and satisfies the power-balance of micro-grid system.

Further, the upper strata central controller is mainly used in the energy management of whole little electrical network, comprises the control to distributed power source, energy storage device, relevant load and line switching; The bottom floor units controller is mainly used in the current transformer control of each distributed power source; Communication bus is used between upper strata central controller and the bottom floor units controller and micro-grid system transmits with the signal that connects between the screen cabinet.

The RTDS analogue system links to each other with digital quantity output integrated circuit board by the analog quantity output integrated circuit board of special optic fibre with interface screen cabinet, and electric simulation amount (voltage and current signal) and digital quantity (power supply status and the on off state) signal of micro-grid system is sent to little grid control system; Little grid control system is by related electric analog quantity and the digital quantity signal of communication bus collection from the output of interface screen cabinet, deliver to upper strata central controller and bottom floor units controller on respectively then, wherein, the upper strata central controller carries out will issuing control signal after the signal processing, and a part of signal directly exports interface screen cabinet to; Another part signal transfers to the bottom floor units controller by communication bus, and the bottom floor units controller receives related electric analog quantity (voltage and current signal) and digital quantity (power supply status) signal on the one hand, receive the control signal that the upper strata central controller issues on the other hand, and handle output pwm pulse by its inner signal and control signal to interface screen cabinet, digital quantity input integrated circuit board by interface screen cabinet, and the special optic fibre that connects the real-time parallel processor of digital quantity input integrated circuit board and RTDS analogue system, correlated digital amount control signal is transmitted back to the RTDS analogue system, finishes the closed loop test of whole micro-grid system.

The utility model has solved the shortcoming and defect that exists in existing little electrical network project testing technology, provide a kind of and can satisfy the real-time power network requirement, be easy to little electrical network experimental test platform of realizing again, as the system testing means before little electricity power engineering field conduct, help to pinpoint the problems early and processing in time, thereby reduce the field conduct risk of little electrical network project greatly.

The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection domain of the present utility model.

Claims (4)

1. the little electrical network experimental test platform based on RTDS is characterized in that comprising RTDS analogue system, interface screen cabinet and little grid control system, wherein,
The RTDS analogue system is connected with little grid control system by interface screen cabinet;
The RTDS analogue system is used for building major loop of little electrical network, and the real-time simulation environment is provided;
Interface screen cabinet is used for providing actual engineering interface between RTDS analogue system and the little grid control system;
Little grid control system is used for realizing whole micro-grid system energy management.
2. a kind of little electrical network experimental test platform based on RTDS according to claim 1 is characterized in that:
Described RTDS analogue system comprises computer workstation, communication interface integrated circuit board and real-time parallel processor;
Described computer workstation is connected with the real-time parallel processor by the communication interface integrated circuit board;
Computer workstation is used for building the major loop realistic model of little electrical network that comprises various distributed power sources, energy storage device, energy converter, relevant load and line switching;
The communication interface integrated circuit board is used for the information communication between computer workstation and the real-time parallel processor;
Described real-time parallel processor is connected with interface screen cabinet.
3. a kind of little electrical network experimental test platform based on RTDS according to claim 1 is characterized in that:
Described interface screen cabinet comprises analog quantity output integrated circuit board, digital quantity input integrated circuit board and digital quantity output integrated circuit board;
Analog quantity output integrated circuit board is for the output interface that combined-voltage, current signal are provided;
Digital quantity input integrated circuit board and numeral output integrated circuit board are used for providing the status signal of equipment, switch and the input and output of command signal and pwm pulse control signal.
4. a kind of little electrical network experimental test platform based on RTDS according to claim 1 is characterized in that:
Described little grid control system comprises upper strata central controller, bottom floor units controller and communication bus;
The upper strata central controller is used for the energy management of whole little electrical network;
The bottom floor units controller is used for the current transformer control of each distributed power source;
Communication bus is used between upper strata central controller and the bottom floor units controller and micro-grid system and interface shield communication between the cabinet.
CN 201320213212 2013-04-24 2013-04-24 Micro-grid test platform based on RTDS (Real Time Digital Simulator) CN203178388U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103235223A (en) * 2013-04-24 2013-08-07 国电联合动力技术有限公司 Micro grid experimental testing platform on basis of RTDS (Real Time Digital System)
CN103558478A (en) * 2013-11-13 2014-02-05 太原理工大学 Platform for testing microgrid converter hardware on return circuit system
CN103558840A (en) * 2013-11-05 2014-02-05 国家电网公司 Method for establishing entity controller simulation experiment standard interface and circuit of RTDS
CN103809465A (en) * 2014-02-27 2014-05-21 华北电力大学 Simulation machine of thermal power generating unit and hydroelectric power generating unit and communication interface of real time digital simulator (RTDS)
CN104570772A (en) * 2015-01-19 2015-04-29 国家电网公司 Micro-grid integration testing simulation platform based on RTDS and method
CN104570768A (en) * 2014-12-31 2015-04-29 浙江大学 Information physics semi-physical simulation system based on Rt-Lab and OPNET
CN104698859A (en) * 2013-12-09 2015-06-10 国家电网公司 Distributed energy generation experiment system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103235223A (en) * 2013-04-24 2013-08-07 国电联合动力技术有限公司 Micro grid experimental testing platform on basis of RTDS (Real Time Digital System)
CN103235223B (en) * 2013-04-24 2016-04-13 国电联合动力技术有限公司 A kind of micro-capacitance sensor experimental test platform based on RTDS
CN103558840A (en) * 2013-11-05 2014-02-05 国家电网公司 Method for establishing entity controller simulation experiment standard interface and circuit of RTDS
CN103558840B (en) * 2013-11-05 2016-01-20 国家电网公司 Build the controller simulation experimental standard interface in kind of RTDS and the method for circuit thereof
CN103558478A (en) * 2013-11-13 2014-02-05 太原理工大学 Platform for testing microgrid converter hardware on return circuit system
CN103558478B (en) * 2013-11-13 2016-01-20 太原理工大学 A kind of micro-capacitance sensor transducer hardware is at circuit system test platform
CN104698859A (en) * 2013-12-09 2015-06-10 国家电网公司 Distributed energy generation experiment system
CN103809465B (en) * 2014-02-27 2016-04-20 华北电力大学 The communication interface of a kind of thermoelectricity and Hydropower Unit replicating machine and RTDS
CN103809465A (en) * 2014-02-27 2014-05-21 华北电力大学 Simulation machine of thermal power generating unit and hydroelectric power generating unit and communication interface of real time digital simulator (RTDS)
CN104570768A (en) * 2014-12-31 2015-04-29 浙江大学 Information physics semi-physical simulation system based on Rt-Lab and OPNET
CN104570772A (en) * 2015-01-19 2015-04-29 国家电网公司 Micro-grid integration testing simulation platform based on RTDS and method

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C25 Abandonment of patent right or utility model to avoid double patenting
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Granted publication date: 20130904

Effective date of abandoning: 20160413