CN105005233A - Pulse power supply real-time control system based on reflective memory network and DSP controller - Google Patents
Pulse power supply real-time control system based on reflective memory network and DSP controller Download PDFInfo
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- CN105005233A CN105005233A CN201510283175.2A CN201510283175A CN105005233A CN 105005233 A CN105005233 A CN 105005233A CN 201510283175 A CN201510283175 A CN 201510283175A CN 105005233 A CN105005233 A CN 105005233A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25032—CAN, canbus, controller area network bus
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Abstract
The present invention discloses a pulse power supply real-time control system based on a reflective memory network and a DSP controller, comprising a reflective memory network, wherein the reflective memory network comprises a reflective memory switch and more than one node unit connected with the reflective memory switch; at least one node unit comprises a DSP controller, the DSP controller is used for acquiring various state signals of a pulse power supply in a current transformer apparatus, and is connected with a current transformer main circuit, the DSP controller achieves control and protection functions with the reflective memory switch through a reflective memory card. The pulse power supply real-time control system of the present invention has the advantages of capacity of improving transmission real-time performance, transmission delay determinacy and reliability of data and commands in the control system, etc.
Description
Technical field
The present invention is mainly concerned with great power pulse power source field, refers in particular to a kind of pulse power real-time control system based on Reflective memory network and dsp controller.
Background technology
Along with controlled nuclear fusion area research development, military industry field rig for testing application increase, the demand of great power pulse power source is also increasing day by day; Meanwhile, also the performance of great power pulse power source is had higher requirement.Such as: more and more higher to the requirement of the real time response speed of power supply, control accuracy, reliability and degree of stability etc.
As one of the core component of great power pulse power source, the real-time performance of net control and controller directly determines the real-time performance of great power pulse power source device.Traditional pulse power source control network is the pattern adopting master control+sub-control mostly, master control and each sub-control unit realize taking turns stream communication by bus, the information of each sub-control unit gathered is used for calculate in real time and process, Master Control Unit needs according to calculating the result with process in real time simultaneously, send target component and steering order to each sub-control unit, thus realize the sequential control of great power pulse power source system.There are some problems in the net control of above-mentioned this pattern:
Data interaction in the middle of above-mentioned pattern between Master Control Unit and each sub-control unit realizes in the mode of bus communication, and the cycle of its bus communication is longer, real-time index is high not enough; And along with the increase of sub-control unit, the real-time control performance of this control system can reduce further; In data interaction real-time performance, message transmission rate, bandwidth etc., traditional pulse power source control network is far away not as good as the performance of reflective memory network.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical matters existed for prior art, the invention provides a kind of pulse power real-time control system based on Reflective memory network and dsp controller of transmission real-time, transmission delay determinacy and the reliability that can improve data and instruction in control system.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
Based on a pulse power real-time control system for Reflective memory network and dsp controller, comprise Reflective memory network, the more than one node unit that described Reflective memory network comprises reflective memory switch and is connected with reflective memory switch; At least one node unit comprises dsp controller; described dsp controller is used for gathering the various status signals of the pulse power in converter device; and be connected with main circuit of converter, described dsp controller is by realizing between reflective memory card and reflective memory switch controlling and defencive function.
As a further improvement on the present invention: the data sharing other node units described in each between node unit.
As a further improvement on the present invention: using the node unit of in described Reflective memory network as host computer system, other node units are as child node unit.
As a further improvement on the present invention: the node unit at described dsp controller place comprises PLC, be used for being connected with bus marco network.
As a further improvement on the present invention: the node unit at described dsp controller place comprises and controls host computer on the spot, is used for realizing the functions such as man-machine interface operation and display.
As a further improvement on the present invention: described dsp controller is used for gathering current signal, voltage signal, synchronous PT signal and alternating-current switch signal.
As a further improvement on the present invention: arrange one between described dsp controller and reflective memory card based on the support plate of cpu system and internal memory, described support plate has PCIE interface to realize and the data interaction function of reflective memory card, carried out the passage of data sharing simultaneously by the local bus of cpu system and dsp controller.
As a further improvement on the present invention: described support plate comprises:
Cpu system and internal memory, be used for carrying out data processing;
PCIE interface, is used for carrying reflective memory card, and completes data interaction function;
Two-port RAM, has been used for and the exchanges data of dsp board;
Hard-disc storage interface, is used for realizing hard disk mounting, completes real-time data memory;
RAM and FLASH storage space, has been used for the storage of data and program;
Serial line interface and Ethernet interface, be used for realizing the external data contact of controller and data analysis interface.
Compared with prior art, the invention has the advantages that:
1, the pulse power real-time control system based on Reflective memory network and dsp controller of the present invention, according to the real-time performance demand that great power pulse power source system sequence controls, adopt the reflective memory network of Based PC IE bus interface, by the PCIE interface conversion of reflective memory be that local bus realizes with the real time data of DSP by the processor of PCIE interface mutual, thus the real time data solving great power pulse power source is mutual and real-time control problem, can improve the transmission real-time of data and instruction in control system, transmission delay determinacy and reliability.
2, of the present invention based in the pulse power real-time control system of Reflective memory network and dsp controller, PCIE bus is as third generation IO bus standard, its equipment wiring quantity is few, transmission bandwidth is high, adopt the reflective memory network of PCIE interface to realize apparatus interconnection more easily, improve transmission performance simultaneously.
3, of the present invention based in the pulse power real-time control system of Reflective memory network and dsp controller, realize the data interaction between reflective memory and dsp controller by the support plate of band PCIE interface, on support plate, run embedded real-time operating system to improve the real-time performance of data transmission simultaneously.
4, of the present invention based in the pulse power real-time control system of Reflective memory network and dsp controller, except adopting PCIE interface between reflective memory card and the controller of reflective memory switch and great power pulse power source, the analog quantity and the digital data acquisition that control each periphery in cabinet all adopt backboard to be connected to the I/O interface of ADC and FPGA in controller, thus make the flexible configuration of peripheral collection capacity, scalability is strong, simultaneously not by the restriction of the load capacity of the buses such as VME, cPCI.
5, the pulse power real-time control system based on Reflective memory network and dsp controller of the present invention, can realize and all reflective memories of PCIE specification or the interface of PCIE device and data interaction, highly versatile.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the present invention in embody rule example.
Fig. 2 is the basic principle schematic of Reflective memory network.
Fig. 3 is the composition schematic diagram of the present invention's Reflective memory network in embody rule example.
Fig. 4 is the composition schematic diagram of the present invention's support plate in embody rule example.
Fig. 5 is the interface composition schematic diagram of the present invention's support plate in embody rule example.
Fig. 6 is the principle schematic of the present invention's case type dsp controller structure in embody rule example.
Embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As shown in Figure 1, the present invention is based on the pulse power real-time control system of Reflective memory network and dsp controller, comprise Reflective memory network, the more than one node unit that described Reflective memory network comprises reflective memory switch and is connected with reflective memory switch, can share the data of other node units according to actual needs between each node unit; At least one node unit comprises dsp controller; described dsp controller is used for gathering the various status signals of the pulse power in converter device; and be connected with main circuit of converter, dsp controller is by realizing between reflective memory card and reflective memory switch in real time, controlling and defencive function fast.Reflective memory network, by above structure, is applied in great power pulse power source net control by the present invention, can improve the transmission real-time of the data of control system and instruction, transmission delay determinacy and reliability; Simultaneously in conjunction with digital signal processing and the controlling functions of DSP, thus realize the real-time control of great power pulse power source Apparatus and system, improve real time response speed and the reliability of Apparatus and system.
In the present embodiment, the node unit at described dsp controller place comprises PLC, is used for being connected with bus marco network, to realize the lower control of requirement of real-time and defencive function.
Further, also comprise in the node unit at described dsp controller place and control host computer on the spot, be used for realizing the functions such as man-machine interface operation and display.
In said system, dsp controller is used for gathering current signal, voltage signal, synchronous PT signal and alternating-current switch signal etc.
In said system, the Reflective memory network (Reflective memory network) adopted in the present invention, is actually a kind of real-time network of the shared storage technology based on express network.Shown in Figure 2, Reflective memory network is actually that the computing machine (processing unit) be connected at every platform is inner all installs one piece of reflective memory card, utilizes reflective memory card to form each node unit in a network; And in storer on the network internal storage card of each node unit, have the shared data copy of network internal storage other node online.These reflective memory cards form a continuous print ring-type or star topology, are communicated between reflective memory card by self-defining procotol, and each reflective memory is stuck in and shares a sector address in logic.Once any computing machine (processing unit) in reflective memory network writes data to reflective memory, the data of rewriting, at once with very high speed, copy shared drive by high speed fibre or co-axial cables transport to other network node.That is, the transmitting physical of data exclusively enjoys high speed private networks completely.Whole data Replica process does not have bus collision, does not have protocol overhead consuming time, does not have established data to destroy yet.Compared with traditional network technology, it has strict transmission delay determinacy, and high speed and the feature such as high reliability, hardware and software platform strong adaptability, effectively compensate for the shortcoming of legacy network.
As shown in Figure 3, be the formation of reflective memory network whole in the present embodiment, whole reflective memory network comprises the network that has multiple node unit, can share the data of other node units between each node unit according to actual needs.In this example, in node unit 1, comprise the reflective memory card of Based PC IE interface, cpu system and internal memory, dsp controller (DSP control panel) and the converter device (as: great power pulse power source etc.) as control objectives; The reflective memory card of Based PC IE interface, cpu system and internal memory is comprised in node unit 2; Node unit 3 can be identical with node unit 1 or node unit 2 to the formation of node unit N, carries out according to actual needs selecting, can share the data of other nodes between each node unit.
Present system adopts the real-time control network based on reflective memory and dsp controller, the high real-time of the data transmission between each network node unit is realized by reflective memory network, two-forty, low delay performance, the realization that data between the dsp controller of each intra-node and reflective memory card are transmitted, embedded real-time operating system was run before this with real-time to local bus of the data realizing reflective memory card on high-performance CPU platform, high-speed transfer, and then dsp controller is by reading, write local bus, finally complete the data interaction function of dsp controller and reflective memory network.In whole process, the transmission of network data is as the local internal memory of DSP reading and writing, and whole net control and each controller possess at a high speed, real-time, deterministic transmission performance.Possess the powerful digital signal processing of dsp controller and computing power and control performance in real time simultaneously; Thus significantly improve real-time factor and the application power of great power pulse power source net control.This control system and controller are not only applicable to the application of great power pulse power source net control, can meet other application to the high converter control system of real-time performance, transmission speed and delay performance requirement yet.
When embody rule, can using the node unit of in Reflective memory network as host computer system, other node units are as child node unit.As using the node unit 2 in Fig. 3 as host computer system, node unit 1 and other node units all describe the function of net control in detail as child node unit.For real-time control network, its performance requirement can be as follows:
(1) node unit 2 is sent to the director data of node unit 1: be greater than 10 words, every word 16, and Refresh Data frequency is at least at more than 2KHz;
(2) node unit 1 is sent to the measurement data of node unit 2: be greater than 40 words, every word 16, and Refresh Data frequency is at least at more than 2KHz.
So, for above performance requirement, need the technical matters of solution two aspects:
(1) be dsp controller (DSP control panel) at the control core of node unit 1 inside, and reflective memory card is Based PC IE interface, so on dsp controller (DSP control panel), there is no PCIE interface, need to realize the interface conversion between PCIE interface and DSP.
(2) problem of data interaction real-time: during data interaction between node unit 1 and node unit 2, signal refreshes at least at more than frequency 2KHz.
First, the present invention adopts embedded type CPU Platform Designing support plate, that is: based on the support plate of cpu system and internal memory, can install processor module that can run real-time system, that have certain data-handling capacity.Support plate provides the PCIE Interface realization of a standard and the data interaction function of reflective memory card, carried out the passage of data sharing simultaneously by the local bus of cpu system and dsp controller.Support plate provides the CPU module interface of a standard, for CPU provides power supply, and peripheral bus expansion is drawn, Ethernet interface, USB interface, USB interface etc. are provided simultaneously.
Secondly, the present invention can run real time operating system on the embedded type CPU platform of support plate, and in real time operating system the propagation function of data between Application and Development software simulating reflective memory card and dsp controller.
As shown in Figure 4 and Figure 5, in the present embodiment, above-mentioned support plate is the PCIE interface board between reflective memory card and dsp controller, is used for carrying out data interaction.In this example, PCIE interface board comprises:
Cpu system and internal memory, be used for carrying out data processing;
PCIE interface, is used for carrying reflective memory card, and completes data interaction function;
Two-port RAM, has been used for and the exchanges data of dsp board;
Hard-disc storage interface, is used for realizing the mounting of SSD hard disk, completes real-time data memory;
RAM and FLASH storage space, has been used for the storage of data and program;
Serial line interface and Ethernet interface, be used for realizing the external data contact of controller and data analysis interface.
In the present embodiment, as the controller of great power pulse power source---dsp controller, as shown in Figure 6, adopt case type structure, DSP is as the core of control system, its controller adopts DSP and fpga chip, and main data acquisition, logic decoding, PI regulate computing, the output of heterogeneous pwm pulse, breakdown judge and the work such as process, system communication.Controller box uses 6U electromagnetic compatibility cabinet, and all plug-in units are all arranged in the standard sockets in cabinet, and the signal completed between plug-in unit by backboard is connected, thus builds complete system.Controller is configured with and comprises the complete communication interface such as 485 interfaces, CAN interface, Ethernet interface and optical-fibre communications mouth, to meet the requirement of the system integration and networking; Simultaneously DSP control panel and PCIE interface board and reflective memory card realize the transfer function of real-time, instruction fast with reflective memory network and data jointly.Shown in composition graphs 5, the function that this controller box can realize mainly comprises: pwm pulse output, digital quantity input, digital output, analog input, analog output, optical fiber input and output; On controller, external acquisition interface quantity is enriched, and the configuration of plug in circuit card can be selected flexibly according to the demand of actual samples number of channels.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (8)
1., based on a pulse power real-time control system for Reflective memory network and dsp controller, it is characterized in that, comprise Reflective memory network, the more than one node unit that described Reflective memory network comprises reflective memory switch and is connected with reflective memory switch; At least one node unit comprises dsp controller; described dsp controller is used for gathering the various status signals of the pulse power in converter device; and be connected with main circuit of converter, described dsp controller is by realizing between reflective memory card and reflective memory switch controlling and defencive function.
2. the pulse power real-time control system based on Reflective memory network and dsp controller according to claim 1, is characterized in that, shares the data of other node units described in each between node unit.
3. the pulse power real-time control system based on Reflective memory network and dsp controller according to claim 2, it is characterized in that, using the node unit of in described Reflective memory network as host computer system, other node units are as child node unit.
4. the pulse power real-time control system based on Reflective memory network and dsp controller according to claim 1 or 2 or 3, it is characterized in that, the node unit at described dsp controller place comprises PLC, is used for being connected with bus marco network.
5. the pulse power real-time control system based on Reflective memory network and dsp controller according to claim 1 or 2 or 3, it is characterized in that, the node unit at described dsp controller place comprises and controls host computer on the spot, is used for realizing the functions such as man-machine interface operation and display.
6. the pulse power real-time control system based on Reflective memory network and dsp controller according to claim 1 or 2 or 3, is characterized in that, described dsp controller is used for gathering current signal, voltage signal, synchronous PT signal and alternating-current switch signal.
7. the pulse power real-time control system based on Reflective memory network and dsp controller according to claim 1 or 2 or 3, it is characterized in that, one is arranged based on the support plate of cpu system and internal memory between described dsp controller and reflective memory card, described support plate has PCIE interface to realize and the data interaction function of reflective memory card, carried out the passage of data sharing simultaneously by the local bus of cpu system and dsp controller.
8. the pulse power real-time control system based on Reflective memory network and dsp controller according to claim 7, it is characterized in that, described support plate comprises:
Cpu system and internal memory, be used for carrying out data processing;
PCIE interface, is used for carrying reflective memory card, and completes data interaction function;
Two-port RAM, has been used for and the exchanges data of dsp board;
Hard-disc storage interface, is used for realizing hard disk mounting, completes real-time data memory;
RAM and FLASH storage space, has been used for the storage of data and program;
Serial line interface and Ethernet interface, be used for realizing the external data contact of controller and data analysis interface.
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