CN104298127A - Micro-grid semi-digital semi-physical real-time simulation system based on RT-LAB - Google Patents
Micro-grid semi-digital semi-physical real-time simulation system based on RT-LAB Download PDFInfo
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- CN104298127A CN104298127A CN201410535831.9A CN201410535831A CN104298127A CN 104298127 A CN104298127 A CN 104298127A CN 201410535831 A CN201410535831 A CN 201410535831A CN 104298127 A CN104298127 A CN 104298127A
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Abstract
The invention discloses a micro-grid semi-digital semi-physical real-time simulation system based on RT-LAB. An RT-LAB simulation machine comprises a micro-grid module and primary equipment modules located below the micro-grid module, the micro-grid module is connected with each primary equipment module, each primary equipment module is connected with a corresponding first-level control module, all the first-level control modules are connected to a second-level control module, and the second-level control module is connected with a computer; the first-level control modules, the second-level control module and the computer are connected through a switch, so an Ethernet network is formed. The micro-grid semi-digital semi-physical real-time simulation system can be used for simulating dynamic characteristics of a micro-grid and simulating a control method and has good flexibility, the RT-LAB simulation machine is used for simulating primary equipment of the micro-grid, dynamic simulation, verification and extension of photovoltaic power generation, wind power generation, diesel power generation and other micro-grid models can be conducted any time any where, and the micro-grid semi-digital semi-physical simulation system high in universality is formed.
Description
Technical field
The present invention relates to a kind of analogue system of micro-capacitance sensor, especially relate to a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB, adopt technical grade emulation tool to carry out analog simulation to micro-capacitance sensor.
Background technology
Along with the development of national economy, electric utility is going from strength to strength, and electric system is also huge gradually, and it runs also more complicated.In order to ensure that electric system is reliable, safely, run economically, static characteristics and the dynamic perfromance of practical power systems definitely intactly must be investigated in planning, analysis with when studying electric system.And traditional analytical approach has been difficult to these characteristics of accurate description, predict the accident that will occur.Meanwhile, the singularity of electric system itself determines again and is difficult to adopt the method for test to realize the analysis of system, must by means of simulation means.This just needs a strong emulation tool to analyze the ruuning situation of practical power systems.Therefore, simulation Technique Study becomes a kind of new trend in Power System Analysis.
RT-LAB is a kind of Distributed Real-time Simulation Platform.Simulink or SystemBuild dynamic model in the short period of time, can be transplanted in ring Hardware Real-time Simulation system with lower cost, thus simplify the process of design of Simulation by it.No matter be used to do Real-time hardware assemblage on-orbit, be also used to the execution of acceleration realistic model, control and test, its dirigibility is all enough to apply in the most complicated emulation and control problem.Meanwhile, RT-LAB is that the real-time simulation of high complexity model provides effective instrument.It can carry out message exchange by ultralow delay technology.In addition, the modular design of RT-LAB can minimization calculation demand, provides the emulation module just meeting application and require, thus meets the price demand of user.Therefore, RT-LAB dirigibility is in the market also better.
RT-LAB micro-capacitance sensor model emulation is also in development and perfect field at home, and relevant document and theory are not yet complete.Domestic market also lacks the relevant hardware and software comprehensive product for micro-capacitance sensor emulation platform, relevant scientific research, the market demand are very large.
Summary of the invention
Based on the deficiencies in the prior art, the present invention proposes a kind of industrial simulation system that utilizes and the system of real time modelling emulation testing is carried out to micro-capacitance sensor model, technical grade emulation tool is adopted to carry out analog simulation to micro-capacitance sensor, utilize RT-LAB replicating machine, real-time simulation can be carried out to the micro-capacitance sensor running of complexity, verify the algorithm rationality developed, greatly accelerate for micro-capacitance sensor research speed and reduce scientific research cost, and for existing micro-capacitance sensor design with improve and provide a large amount of Technical Reference data.
In order to realize foregoing invention object, the present invention adopts following technical scheme:
Comprise RT-LAB replicating machine, each primary equipment module under RT-LAB replicating machine comprises micro-capacitance sensor module and is in micro-capacitance sensor module;
Comprise the one-level control module with each primary equipment model calling in RT-LAB replicating machine, the emulated data that one-level control module receives primary equipment module carries out process conversion, active power of output and reactive power are to Two-stage control module, and the feedback pwm control signal receiving Two-stage control module is sent to primary equipment module;
Comprise the Two-stage control module be connected with all one-level control modules, Two-stage control module receives active power and the reactive power of the output of one-level control module, receive the Real-time Monitoring Data of micro-capacitance sensor module, the Real-time Monitoring Data of treated output RT-LAB replicating machine is to computing machine simultaneously; And the dominant eigenvalues control signal of receiving computer output and micro-capacitance sensor operational mode control signal; And export the micro-capacitance sensor module of interconnection isolating switch open and close controlling signal to RT-LAB replicating machine;
Comprise the computing machine with Two-stage control model calling, detection data treated generation dominant eigenvalues control signal and the micro-capacitance sensor operational mode control signal of computing machine reception primary equipment module and micro-capacitance sensor module feed back to Two-stage control module.
All be interconnected by switch between described one-level control module, Two-stage control module, computing machine, form ethernet network.
Described ethernet network carries out data transmission by UDP host-host protocol.
Described emulated data comprises voltage signal and current signal.
The Real-time Monitoring Data of described micro-capacitance sensor module comprises micro-capacitance sensor voltage, micro-capacitance sensor frequency, dominant eigenvalues.
The Real-time Monitoring Data of described RT-LAB replicating machine comprises the power of micro-capacitance sensor frequency, micro-capacitance sensor voltage, micro-capacitance sensor dominant eigenvalues and each primary equipment module.
Described one-level control module and Two-stage control module all adopt DSP.
Described one-level control module is provided with A/D interface, SPI interface and I/O interface.
Described Two-stage control module is provided with A/D interface and I/O interface.
The invention has the beneficial effects as follows:
The present invention can be used for simulating the dynamic perfromance of micro-capacitance sensor, also can analog control method, has better dirigibility, utilizes RT-LAB replicating machine to simulate the primary equipment of micro-capacitance sensor, form the micro-capacitance sensor Semi-digital semi-matter simulating system of highly versatile.
The present invention can in a short period of time, with very little risk, carry out dynamic simulation, data analysis and output display to micro-capacitance sensor model.It is good that this emulation platform has versatility, is easy to the feature operated, and can shorten the R&D cycle of micro-capacitance sensor key equipment, and the platform developed can be filled a hole in the market with less cost.
The present invention has good dirigibility, can whenever and wherever possible to the checking expansion carrying out dynamic simulation and model of the micro-capacitance sensor models such as photovoltaic generation, wind power generation, diesel power generation, and accelerate scientific research and the research and development of products of association area, application surface is very wide.
Accompanying drawing explanation
Fig. 1 is syndeton schematic diagram of the present invention.
Fig. 2 is one-piece construction schematic diagram of the present invention.
Fig. 3 is the concrete catenation principle figure of one-level control module and RT-LAB replicating machine.
Fig. 4 is the concrete catenation principle figure of Two-stage control module and RT-LAB replicating machine.
Embodiment
Below in conjunction with Figure of description, the specific embodiment of the present invention is described in detail.
As depicted in figs. 1 and 2, analogue system of the present invention is as follows:
Comprise RT-LAB replicating machine, each primary equipment module under RT-LAB replicating machine comprises micro-capacitance sensor module and is in micro-capacitance sensor module;
Comprise the one-level control module with each primary equipment model calling in RT-LAB replicating machine, the emulated data that one-level control module receives primary equipment module carries out process conversion, active power of output and reactive power are to Two-stage control module, and the feedback pwm control signal receiving Two-stage control module is sent to primary equipment module;
Comprise the Two-stage control module be connected with all one-level control modules, Two-stage control module receives active power and the reactive power of the output of one-level control module, receive the Real-time Monitoring Data of micro-capacitance sensor module, the Real-time Monitoring Data of treated output RT-LAB replicating machine is to computing machine simultaneously; And the dominant eigenvalues control signal of receiving computer output and micro-capacitance sensor operational mode control signal; And export the micro-capacitance sensor module of interconnection isolating switch open and close controlling signal to RT-LAB replicating machine;
Comprise the computing machine with Two-stage control model calling, detection data treated generation dominant eigenvalues control signal and the micro-capacitance sensor operational mode control signal of computing machine reception primary equipment module and micro-capacitance sensor module feed back to Two-stage control module.
Above-mentioned emulated data comprises voltage signal and the current signal of primary equipment module.
The Real-time Monitoring Data of above-mentioned micro-capacitance sensor module comprises micro-capacitance sensor voltage, micro-capacitance sensor frequency, dominant eigenvalues.
The Real-time Monitoring Data of above-mentioned RT-LAB replicating machine comprises the power of micro-capacitance sensor frequency, micro-capacitance sensor voltage, micro-capacitance sensor dominant eigenvalues and each primary equipment module.
As shown in Figure 2, the present invention includes RT-LAB replicating machine, one-level control module, Two-stage control module and computing machine, each primary equipment module under RT-LAB replicating machine comprises micro-capacitance sensor module and is in micro-capacitance sensor module, micro-capacitance sensor module and each primary equipment model calling, each primary equipment module is connected with each self-corresponding one-level control module, all one-level control modules are all connected to Two-stage control module, and Two-stage control module is connected with computing machine.Wherein all be interconnected by switch between one-level control module, Two-stage control module, computing machine, form an ethernet network.
The present invention utilizes the thought of micro-capacitance sensor modular design and mathematical modeling, RT-LAB replicating machine is applied in electric system micro-capacitance sensor analogue system, data analysis display can be carried out in time, accurately, carry out Semi-digital semi-physical real-time simulation, further micro-capacitance sensor debugging and test after contributing to.
Ethernet network of the present invention carries out data transmission by UDP host-host protocol.The dsp processor of RT-LAB replicating machine of the present invention and a control module and linear quadratic control module carries out exchanges data by respective external interface (comprising A/D, D/A, digital I/O), and carries out data by Ethernet UDP transmission mode and computing machine and transmit and communicate.
Each primary equipment module comprises blower fan module, diesel engine module, energy-storage module and photovoltaic module.
One-level control module and Two-stage control module all adopt dsp processor, preferably can adopt the TMS320F28335 processor of Ti company.
As shown in Figure 3, one-level control module is provided with A/D interface, SPI interface and I/O interface.
As shown in Figure 4, Two-stage control module is provided with A/D interface and I/O interface.
RT-LAB replicating machine and dsp processor carry out exchanges data by respective external interface (comprising A/D, D/A, the interfaces such as digital I/O mouth), and carry out data by the mode of Ethernet with computing machine and transmit and communicate.
Assisted by software, the service data waveform such as voltage, electric current, power of the micro-capacitance sensor module in various situation can export by native system intuitively, and carries out com-parison and analysis to data and waveform and preservation is called.Finally by the waveform of display, be optimized adjustment in host computer (i.e. computing machine) operational factor to micro-capacitance sensor model, to reach best control effects, for full-scale investigation and practical application provide foundation.
RT-LAB has a wide range of applications in electric system micro-capacitance sensor emulation platform, and in time, the display of data analysis is accurately the basis of subsequent analysis and work for the treatment of.Numerical model analysis emulation has important effect to the scientific research such as debugging, test of heuristics of micro-capacitance sensor.RT-LAB can simulate primary equipment, and linear quadratic control equipment needs the feature customized development according to equipment, to reach the object of hybrid simulation.Because product is different, linear quadratic control equipment lacks more common platform, causes the overlapping development of a lot of scientific research kind secondary plate, and market does not exist a kind of general analog platform yet.
For the general-purpose platform of the secondary controller equipment of RT-LAB, according to electric system micro-capacitance sensor demand, not only demand fulfillment is to the requirement of different parameters Measurement and analysis and control, also needs the correlation parameter precisely showing micro-capacitance sensor model, draw respective waveforms, and there is initial analysis function.
The present invention adopts the ruuning situation of RT-LAB replicating machine real time modelling micro-capacitance sensor, run micro-capacitance sensor by one-level control module, Two-stage control module and carry out one-level, Two-stage control, also by computing machine, three class control is carried out to Two-stage control module, and then form micro-capacitance sensor Semi-digital semi-physical real-time simulation platform, will bring great convenience to the research of micro-capacitance sensor, can greatly reduce the actual operation scientific research cost for micro-capacitance sensor, the theoretical research for electric system has larger facilitation.
The micro-capacitance sensor module built in RT-LAB replicating machine of the present invention comprises following a few part:
1. distributed generation unit.As blower fan, photovoltaic, energy storage, diesel engine etc.;
2. load.As RLC load, induction-motor load, power electronics load etc.;
3. electric power networks.By circuit, distributed generation unit, load and main electrical network are coupled together.
Application RT-LAB real-time emulation system sets up the Real-Time Model (i.e. micro-capacitance sensor module and each primary equipment module under being in micro-capacitance sensor module) of as above three kinds of micro-capacitance sensor component parts, and carries out corresponding control.What this module adopted is control by levels method, can decoupling zero micro-capacitance sensor in the control of Different time scales, improve the controllability reliability of micro-capacitance sensor.The micro-capacitance sensor of native system controls mainly to be divided into three levels: one-level control, Two-stage control and three class control.
One-level controls to control also referred to as this locality, is the key-course for local parameters such as controlled frequency, voltage, Injection Currents.In the distributed power converter that each is connected with micro-capacitance sensor, one-level controls except basic Voltage loop, electric current loop double-closed-loop control method, additionally uses the droop control technology of band virtual impedance.
Two-stage control is a kind of centerized fusion device, can the steady-state error of bucking voltage and frequency, makes their value return to ratings.In addition, two-level controller is also responsible for the control of AC bus voltage along the line, makes the voltage of any point in microgrid structure all in operational limits.
The effect of three class control is the operation optimizing micro-capacitance sensor, and control dominant eigenvalues under net state, under lonely net state, give each power supply, to realize optimal effectiveness by load Cost Allocation.
The concrete implementation process in each stage of the present invention is as follows:
(1) as shown in Figure 1: system comprises: RT-LAB replicating machine, one-level control module, Two-stage control module and computing machine,
A) ruuning situation of RT-LAB replicating machine simulation micro-capacitance sensor, by micro-capacitance sensor each several part as the parameter of primary equipment, interconnection is exported by I/O mouth; Primary equipment comprises the elements such as blower fan, photovoltaic, diesel engine, energy storage.
B) the primary equipment analog output unit of RT-LAB replicating machine is connected by the A/D converting unit of the winding displacement one-level control module corresponding with it.
Corresponding one-level control module runs a stage control method of micro-capacitance sensor, Simulation with I/O of analog quantity to RT-LAB replicating machine is exported by SPI interface mode control D/A module, and export the digital I/O of ePWM ripple to RT-LAB replicating machine, run with the primary equipment of control RT-LAB replicating machine.
C) run the Two-stage control method of micro-capacitance sensor in Two-stage control module, send micro-capacitance sensor interconnection isolating switch open and close controlling signal to RT-LAB replicating machine by digital I/O interface.Two-stage control module is connected by Ethernet with each one-level control module simultaneously, both-way communication.Each one-level control module transfers data to Two-stage control module, and Two-stage control module process data also sends a control signal to one-level control module, carries out Two-stage control.
D) Two-stage control module is connected with computing machine by Ethernet, both-way communication.On the one hand, Two-stage control module sends data to computing machine, computing machine shows corresponding waveform; On the other hand, computing machine sends data to Two-stage control module, changes its correlation parameter, forms three class control.
E) the Ethernet connection of the above each several part carries out construction by switch.
(2) as shown in Figure 2:
Analog quantity in RT-LAB replicating machine is connected to the A/D unit of one-level control module by winding displacement by Simulation with I/O; One-level control module receives the feedback signal from RT-LAB replicating machine, sends and control control signal to RT-Lab replicating machine after closed loop computing.Control control signal and send data to D/A module by one-level control module by SPI unit, D/A module is made to send the Simulation with I/O interface of analog quantity to RT-LAB replicating machine, thus the distributed generator in control RT-LAB, change the operation conditions of micro-capacitance sensor primary equipment.
(3) as shown in Figure 3:
Analog quantity in RT-LAB replicating machine is connected to the A/D unit of Two-stage control module by winding displacement by Simulation with I/O interface; Two-stage control module receives the signal from RT-LAB replicating machine, after closed loop computing, sends micro-capacitance sensor interconnection isolating switch open and close controlling signal to RT-Lab replicating machine by digital I/O interface.
(4) as shown in Figure 4:
One-level control module, Two-stage control module, computing machine take switch as medium, form ethernet network, carry out being interconnected, transmitting data.Wherein one-level control module, Two-stage control module is two-way communicates, and forms Two-stage control process; Two-stage control module, computer bidirectional communicate, and complete three class control process.
Above-mentioned embodiment is used for explaining and the present invention is described, instead of limits the invention, and in the protection domain of spirit of the present invention and claim, any amendment make the present invention and change, all fall into protection scope of the present invention.
Claims (9)
1., based on a micro-capacitance sensor Semi-digital semi-physical real-time simulation system of RT-LAB, it is characterized in that:
Comprise RT-LAB replicating machine, each primary equipment module under RT-LAB replicating machine comprises micro-capacitance sensor module and is in micro-capacitance sensor module;
Comprise the one-level control module with each primary equipment model calling in RT-LAB replicating machine, the emulated data that one-level control module receives primary equipment module carries out process conversion, active power of output and reactive power are to Two-stage control module, and the feedback pwm control signal receiving Two-stage control module is sent to primary equipment module;
Comprise the Two-stage control module be connected with all one-level control modules, Two-stage control module receives active power and the reactive power of the output of one-level control module, receive the Real-time Monitoring Data of micro-capacitance sensor module, the Real-time Monitoring Data of treated output RT-LAB replicating machine is to computing machine simultaneously; And the dominant eigenvalues control signal of receiving computer output and micro-capacitance sensor operational mode control signal; And export the micro-capacitance sensor module of interconnection isolating switch open and close controlling signal to RT-LAB replicating machine;
Comprise the computing machine with Two-stage control model calling, detection data treated generation dominant eigenvalues control signal and the micro-capacitance sensor operational mode control signal of computing machine reception primary equipment module and micro-capacitance sensor module feed back to Two-stage control module.
2. a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB according to claim 1, it is characterized in that: be all interconnected by switch between described one-level control module, Two-stage control module, computing machine, form ethernet network.
3. a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB according to claim 2, is characterized in that: described ethernet network carries out data transmission by UDP host-host protocol.
4. a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB according to claim 1, is characterized in that: described emulated data comprises voltage signal and current signal.
5. a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB according to claim 1, is characterized in that: the Real-time Monitoring Data of described micro-capacitance sensor module comprises micro-capacitance sensor voltage, micro-capacitance sensor frequency, dominant eigenvalues.
6. a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB according to claim 1, is characterized in that: the Real-time Monitoring Data of described RT-LAB replicating machine comprises the power of micro-capacitance sensor frequency, micro-capacitance sensor voltage, micro-capacitance sensor dominant eigenvalues and each primary equipment module.
7. a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB according to claim 1, is characterized in that: described one-level control module and Two-stage control module all adopt DSP.
8. a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB according to claim 1, is characterized in that: described one-level control module is provided with A/D interface, SPI interface and I/O interface.
9. a kind of micro-capacitance sensor Semi-digital semi-physical real-time simulation system based on RT-LAB according to claim 1, is characterized in that: described Two-stage control module is provided with A/D interface and I/O interface.
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| CN112366796A (en) * | 2020-12-03 | 2021-02-12 | 南方电网科学研究院有限责任公司 | Energy storage system semi-physical simulation platform for gradient utilization of ex-service battery |
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