CN113224838A - Fifteen-phase large-capacity induction propulsion frequency converter control framework - Google Patents
Fifteen-phase large-capacity induction propulsion frequency converter control framework Download PDFInfo
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- CN113224838A CN113224838A CN202110341653.6A CN202110341653A CN113224838A CN 113224838 A CN113224838 A CN 113224838A CN 202110341653 A CN202110341653 A CN 202110341653A CN 113224838 A CN113224838 A CN 113224838A
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- 230000006698 induction Effects 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000013307 optical fiber Substances 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
- H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The invention discloses a fifteen-phase large-capacity induction propulsion frequency converter control framework, which comprises a closed circulating water cooling cabinet body, three completely consistent inverter cabinet bodies and a brake resistor cabinet, wherein each inverter cabinet body comprises five inverter units, a brake unit and five output filter units; the control architecture is specifically as follows: the main controller is arranged, each inversion cabinet body forms a ring network, each inversion unit or brake unit is provided with a slave controller, and the fifteen-phase high-capacity induction propulsion frequency converter formed by the three inversion cabinet bodies comprises three independent ring networks. The ring networks among the cabinet bodies are independent, so that redundant operation of the remaining ring networks is ensured when one ring network fails (controller hardware or ring network communication), and the reliability of the frequency converter is improved.
Description
Technical Field
The invention belongs to the technical field of medium-high voltage high-power multiphase propulsion frequency converters, and particularly relates to a fifteen-phase high-capacity induction propulsion frequency converter control framework.
Background
The propulsion motor system is a core main propulsion device of a comprehensive electric power system ship, has large propulsion power, and simultaneously needs to have the characteristics of large capacity, low vibration noise, high redundancy and the like in order to achieve tactical indexes such as maneuverability, sound stealth, high reliability and the like. The propulsion motor is used for ensuring the maneuverability of the ship, and the requirement on high reliability is obviously met, the capacity of each phase power device can be reduced by adopting a scheme of multiple sets of multiphase windings, the safety margin is increased, and the redundancy of the system is improved. In addition, the more phases, the higher the torque ripple frequency and the smaller the amplitude, and the motor vibration noise is reduced. Therefore, the multiphase multi-channel large-capacity propulsion motor is very suitable for ship electric propulsion due to a series of advantages of redundancy, high power density, low torque ripple and the like.
Disclosure of Invention
The invention aims to provide a fifteen-phase large-capacity induction propulsion frequency converter control framework with high redundancy in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention designs a fifteen-phase large-capacity induction propulsion frequency converter control framework, wherein the fifteen-phase large-capacity induction propulsion frequency converter comprises a closed circulation water-cooling cabinet body, three completely consistent inversion cabinet bodies and a brake resistor cabinet, and each inversion cabinet body comprises five inversion units, one brake unit and five output filter units; the control architecture is specifically as follows: the main controller is arranged, each inversion cabinet body forms a ring network, each inversion unit or brake unit is provided with a slave controller, and the fifteen-phase large-capacity induction propulsion frequency converter formed by the three inversion cabinet bodies comprises three independent ring networks.
Further, the control architecture specifically includes: each inversion unit or brake unit is provided with a slave controller, and the master controller and the slave controllers adopt single optical fiber point-to-point high-speed communication.
Furthermore, the master controller is responsible for PWM pulse generation and serially issues the PWM pulse to the slave controllers through a single optical fiber, the slave controllers perform pulse distribution on the received PWM information, the IGBT is directly driven through the hard optical fiber, each slave controller is correspondingly connected with one power module, the slave controllers simultaneously serially feed back voltage data, current data and IGBT state information of the corresponding power module to the master controller through the single optical fiber, and the communication frequency is 12.5 MHz.
Compared with the prior art, the invention has the following advantages:
1) the communication rate is high. The high-speed optical fiber ring network communication network control topology adopts a 4B/5B communication coding technology, a low-swing PECL transmission signal and a 155MHz high-speed optical fiber transceiving module, the maximum communication speed can reach 155Mbps, and the maximum communication speed is designed to be 125Mbps according to the actual engineering application requirement. The point-to-point high-speed optical fiber communication control framework adopts a 50Mbps high-speed optical fiber head to receive and transmit data, and because the PWM pulse bit number of each three-level H-bridge power unit or brake unit is 8, the time for transmitting and transmitting the PWM pulse is about 0.64us, and the communication delay is small.
2) The structure is simple. The single-channel high-speed optical fiber ring network communication network control topology adopts four communication networks, including a fault protection open-loop control network, a startup and shutdown network, a synchronous network and three closed-loop control networks of a high-speed data communication network, each control network only needs one single optical fiber line for connection, the communication network system is simple in structure, the four communication networks respectively play their roles, and the reliability of system operation and the simplification of a communication protocol are guaranteed. The point-to-point high-speed communication control framework adopts 12.5Mbps optical fiber point-to-point communication, the analog quantity or state information of the unit is collected from the controller, only 1 pair of optical fibers is needed through communication uploading, and the interconnection of the optical fiber network of the whole device is reduced to the maximum extent.
3) The synchronization effect is good. The single-channel high-speed optical fiber ring network communication network control topology designs a network specially used for synchronous control, each slave controller directly receives a synchronous signal from the master controller, the master controller is not required to send a synchronous command of a system, and the coding and decoding operation and forwarding of high-speed data communication are not required, the synchronous delay is small, the system can conveniently perform corresponding delay compensation processing, the synchronous precision is within 100ns, the synchronous effect is good, and the reliability is high. The point-to-point high-speed communication control framework adopts 12.5Mbps optical fiber point-to-point communication, different slave controllers carry out PWM pulse synchronization through the master controller, the time for sending the PWM pulse communication of the master controller to each slave controller is basically the same, and each slave controller adopts a 100MHz clock to decode received PWM pulse communication data, so that the synchronization performance among different phases is ensured.
4) The distributed type and the modularization degree are high, and the reconfiguration is easy. Each H-bridge inverter unit or brake unit of the single-channel high-speed optical fiber ring network communication network control topology is provided with a slave controller, a plurality of slave controllers in a single inverter cabinet body are connected in series through a single optical fiber line to form an open-loop or closed-loop control ring network, and each slave controller can be integrated on each power unit module of a large-capacity power electronic system to form a power unit module slave node with more perfect functions, so that the whole power electronic system has obvious distributed and modularized characteristics. If the node data in the system needs to be added, the node is only added into the ring network, and the node address is increased by a few bits, so that the system is easy to reconfigure and has good expandability. Every H bridge contravariant unit of point-to-point high speed communication control framework or brake unit set up one from the controller, and whole device sets up a main control unit, and the main control unit adopts 12.5Mbps optic fibre point-to-point communication with each from the controller, and the difference is all issued PWM from the controller through the main control unit communication and is controlled, and the different phases are completely unanimous from the controller procedure, have reduced the maintainability, reserve communication interface through the main control unit, very easily extension.
5) The reliability is high. Compared with the traditional centralized control mode of controlling the IGBT by the PWM point-to-point optical fiber of the main controller, the single-channel high-speed optical fiber ring network communication network is simple in control and topology connection line, no point-to-point electric connection line exists due to a large number of IGBTs, all signals are transmitted through the optical fiber, the anti-interference capacity is high, and therefore the reliability of the whole system is remarkably improved. Under the control framework of point-to-point high-speed communication, the main controller and each slave controller adopt 12.5Mbps optical fiber point-to-point communication, PWM pulses are issued through serial high-speed communication to be controlled, the PWM pulses are issued to the slave controller and then decoded, and then the IGBT is driven through the slave controller pulse distribution optical fiber, so that the direct numerous point-to-point hard wires of the traditional main controller and the IGBT are avoided, all signals are transmitted through the optical fiber, and the anti-interference capability is strong.
Drawings
FIG. 1 is a diagram of a fifteen-phase high-speed fiber ring network control architecture of a large-capacity induction propulsion frequency converter according to the present invention;
FIG. 2 is a detailed diagram of the control structure of the high-speed optical fiber ring network of FIG. 1;
FIG. 3 is a diagram of another peer-to-peer high speed communication control architecture according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific examples.
The invention relates to a control framework of a fifteen-phase high-capacity induction propulsion frequency converter, which comprises a closed circulation water-cooling cabinet body, three completely consistent inversion cabinet bodies and a brake resistor cabinet, wherein each inversion cabinet body comprises five inversion units, a brake unit and five output filter units, and the output filter units are symmetrically designed by adopting filter inductors, so that the output common-mode voltage is reduced. Each inversion cabinet body forms a ring network, each inversion unit or brake unit is provided with a slave controller, the whole device is provided with a master controller, and the fifteen-phase large-capacity propulsion frequency converter formed by the three inversion cabinet bodies is formed by three independent ring networks. The loop networks among the cabinet bodies are independent, so that redundant operation of the remaining loop networks is ensured when one loop network fails (controller hardware or loop network communication), and the reliability of the frequency converter is improved, as shown in figure 1.
The single-channel high-speed optical fiber ring network communication control network topology consists of four optical fiber ring networks, wherein the four optical fiber ring networks comprise an open-loop ring network and three closed-loop ring networks, and the network control topology structure is shown in figure 2.
The open loop ring network is a fault protection network. The fault protection network is mainly responsible for uploading fault states of all nodes in a system and disconnection faults between the nodes in the ring network to a main controller, and since the main node can detect own faults and does not need to upload fault state information, the fault protection network is designed to be an open-loop network.
The three closed-loop annular networks are respectively a startup and shutdown network, a synchronous network and a high-speed data communication network. The on-off network is designed into a closed-loop network because the on-off network sends an on-off command to a main controller of the system, each slave controller in the system respectively executes the on-off operation of the slave controller after receiving the on-off command from the main controller, and the on-off command is returned to the main controller for monitoring in order to realize that the main controller monitors whether an on-off signal is correctly sent out. Because the used optical fiber receiving head has a receiving inverse logic function, each slave controller carries out inverse logic operation after receiving the on-off command signal and the off-off command signal, then executes corresponding operation and sends the operation to a next node.
The synchronous network is mainly used for carrying out system control synchronous processing on each slave controller according to a synchronous command signal sent by the master controller, each slave controller generates a synchronous control signal of the controller through respective corresponding delay compensation processing after receiving the synchronous command signal from the master controller, and therefore the synchronism of control among the slave controllers in the system is guaranteed. The high-speed data communication network is mainly used for uploading control data and command information required by each slave controller of a transmission system and feedback data of each slave controller, and the network adopts a high-speed data transceiver module of 155MHz, but the actual communication rate is 125 Mbps.
The point-to-point high-speed serial optical fiber communication control network topology is formed by optical fiber transmission and optical fiber reception, and the network control topology structure is shown in figure 3.
The main controller generally adopts a DSP + FPGA hardware framework, the DSP is responsible for modulation wave closed-loop operation, the FPGA is responsible for comparing each phase of modulation wave with a triangular wave to form PWM pulses, and the PWM pulses are encoded according to a certain sequence. For asynchronous high-speed serial communication, the master controller encodes 8 IGBT driving PWM pulses required by the slave controller according to a certain sequence, adds a start bit, parity check and a stop bit according to a serial communication protocol, sends the start bit, the parity check and the stop bit to the slave controller at the frequency of 12.5MHz, decodes the received PWM pulse information by the slave controller, directly drives the IGBT if the decoding is successful, and sets a communication check mark for judging the communication state. Besides receiving the PWM pulse information of the master controller, the slave controller simultaneously acquires the voltage, current, temperature, IGBT state and other information of the power unit of the corresponding module of the slave controller, and serially feeds back and transmits the information to the master controller according to the communication rate of 12.5 Mbps. Because the feedback data has no control pulse height for real-time performance and synchronism requirements, and meanwhile, in order to improve the accuracy of serial communication, more complex CRC check is generally adopted. In addition, due to the fact that serial communication is adopted, independent hard optical fiber fault protection is not provided, in order to improve the rapidity of fault protection of the power unit, for serious faults such as IGBT alarming, overcurrent and overvoltage, the slave controller directly blocks IGBT pulses according to the sequence specified by three-level topology, then fault state communication is uploaded to the master controller, the master controller decodes received data, checks and judges the received data, and then next measures are determined.
The point-to-point high-speed serial optical fiber network adopts a 50Mbps high-speed data transceiver module, but the actual communication rate is 12.5 Mbps.
In addition to the above examples, the present invention may have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection of the present patent claims.
Claims (2)
1. A fifteen-phase large-capacity induction propulsion frequency converter control framework comprises a closed circulation water-cooling cabinet body, three completely consistent inversion cabinet bodies and a brake resistor cabinet, wherein each inversion cabinet body comprises five inversion units, a brake unit and five output filter units; the method is characterized in that: the control architecture is specifically as follows: the main controller is arranged, each inverter cabinet body forms a ring network, each inverter unit or brake unit is provided with a slave controller, and a fifteen-phase high-capacity induction propulsion frequency converter formed by the three inverter cabinet bodies comprises three independent ring networks;
the control architecture is specifically as follows: each inversion unit or brake unit is provided with a slave controller, and the master controller and the slave controllers adopt single optical fiber point-to-point high-speed communication.
2. The fifteen-phase high capacity inductive propulsion inverter control architecture of claim 1, wherein: the master controller is responsible for PWM pulse generation, serially issues to the slave controller through single optical fiber, carries out pulse distribution on received PWM information from the slave controller, directly drives the IGBT through hard optical fiber, each slave controller is correspondingly connected with a power module, the slave controller simultaneously feeds back voltage data, current data and IGBT state information corresponding to the power module to the master controller through the high-speed serial feedback of the single optical fiber, and the communication frequency is 12.5 MHz.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732798A1 (en) * | 1995-03-14 | 1996-09-18 | Hitachi, Ltd. | PWM control apparatus and a system using same |
| CN201191374Y (en) * | 2008-05-08 | 2009-02-04 | 西安博恒智能技术有限公司 | Electric wire type field bus coal plough control system |
| CN103916187A (en) * | 2014-03-24 | 2014-07-09 | 中国人民解放军海军工程大学 | High-speed optical fiber ring network communication network control topology of large-capacity power electronic system |
| CN104158853A (en) * | 2014-07-23 | 2014-11-19 | 中国人民解放军海军工程大学 | Manchester-code-based power electronic conversion system communication control framework |
| CN105551230A (en) * | 2016-03-04 | 2016-05-04 | 辽宁荣信电气传动技术有限责任公司 | Single-fiber ring network communication topology structure for power units of high-voltage frequency converter |
| CN105978359A (en) * | 2016-06-20 | 2016-09-28 | 中国人民解放军海军工程大学 | Twelve-phase permanent magnet propulsion converter |
| CN107093959A (en) * | 2016-02-17 | 2017-08-25 | 南京紫泉电力设计咨询有限公司 | A kind of high voltage shore power converter plant |
| CN108183618A (en) * | 2017-12-12 | 2018-06-19 | 中国船舶工业系统工程研究院 | A kind of modularization pedigree high-power marine frequency converter |
-
2021
- 2021-03-30 CN CN202110341653.6A patent/CN113224838A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732798A1 (en) * | 1995-03-14 | 1996-09-18 | Hitachi, Ltd. | PWM control apparatus and a system using same |
| CN201191374Y (en) * | 2008-05-08 | 2009-02-04 | 西安博恒智能技术有限公司 | Electric wire type field bus coal plough control system |
| CN103916187A (en) * | 2014-03-24 | 2014-07-09 | 中国人民解放军海军工程大学 | High-speed optical fiber ring network communication network control topology of large-capacity power electronic system |
| CN104158853A (en) * | 2014-07-23 | 2014-11-19 | 中国人民解放军海军工程大学 | Manchester-code-based power electronic conversion system communication control framework |
| CN107093959A (en) * | 2016-02-17 | 2017-08-25 | 南京紫泉电力设计咨询有限公司 | A kind of high voltage shore power converter plant |
| CN105551230A (en) * | 2016-03-04 | 2016-05-04 | 辽宁荣信电气传动技术有限责任公司 | Single-fiber ring network communication topology structure for power units of high-voltage frequency converter |
| CN105978359A (en) * | 2016-06-20 | 2016-09-28 | 中国人民解放军海军工程大学 | Twelve-phase permanent magnet propulsion converter |
| CN108183618A (en) * | 2017-12-12 | 2018-06-19 | 中国船舶工业系统工程研究院 | A kind of modularization pedigree high-power marine frequency converter |
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