CN212572093U - Multifunctional station controller system for railway regenerative electric energy utilization - Google Patents
Multifunctional station controller system for railway regenerative electric energy utilization Download PDFInfo
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- CN212572093U CN212572093U CN202020675641.8U CN202020675641U CN212572093U CN 212572093 U CN212572093 U CN 212572093U CN 202020675641 U CN202020675641 U CN 202020675641U CN 212572093 U CN212572093 U CN 212572093U
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Abstract
The utility model discloses a multifunctional station controller system for railway regenerative electric energy utilization, wherein the A end of a traction contact net is connected with a high-voltage electrical appliance A, and the high-voltage electrical appliance A is connected with a bidirectional converter through a step-down transformer A; the B end of the traction contact net is connected with a high-voltage electrical appliance B, and the high-voltage electrical appliance B is connected with a bidirectional converter through a step-down transformer B; the high-voltage electric appliance A, the step-down transformer A, the bidirectional converter, the high-voltage electric appliance B and the step-down transformer B are all in communication connection with the communication bus; the communication bus is also connected with an energy storage assembly; the communication bus is connected with a multifunctional station controller, and the AC/DC power supply screen provides power supply required by work for each device. The voltage and current signals of the high-voltage side can be acquired through the analog quantity acquisition port, and the working state and the action information can be acquired through the digital quantity acquisition port. The controller receives the analog and switch signals and processes them with logic programming to form commands to control the subsystems or components.
Description
Technical Field
The utility model belongs to the technical field of the railway electrification equipment, a multi-functional station controller system for railway regenerative electric energy utilizes is related to.
Background
With the large number of on-line applications of ac locomotives, the impact of regenerative braking electrical energy has become a significant problem in traction power supply networks. One part of regenerative braking electric energy of the alternating current locomotive is used for other traction locomotives under the same power supply arm, and the rest part of the regenerative braking electric energy is returned to the upper-level power grid through a transformer substation traction transformer. The reverse power transmission can cause the voltage fluctuation of the contact network, and the harmonic content is large.
The regenerative electric energy is utilized, so that the adverse effect of the regenerative electric energy on a contact network and a superior power grid can be eliminated or reduced, and considerable economic benefit is also achieved.
The railway regenerative electric energy utilization relates to various modes of fusion, dispatching, storage, release and the like of electric energy. In order to ensure the normal operation of each subsystem device, the device is coordinated to complete each established function, and the reliability is high. The upper layer equipment is needed to carry out working state monitoring, data collection, logic coordination and unified command on the subsystem equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multi-function station controller system for railway regeneration electric energy utilizes connects the communication to each functional equipment through DSP + FPGA's structural mode, realizes data acquisition, state monitoring and instruction transmission.
The utility model adopts the technical proposal that a multifunctional station controller system for railway regenerative electric energy utilization, the A end of a traction contact net is connected with a high-voltage electrical apparatus A, and the high-voltage electrical apparatus A is connected with a bidirectional converter through a step-down transformer A; the B end of the traction contact net is connected with a high-voltage electrical appliance B, and the high-voltage electrical appliance B is connected with a bidirectional converter through a step-down transformer B; the high-voltage electric appliance A, the step-down transformer A, the bidirectional converter, the high-voltage electric appliance B and the step-down transformer B are all in communication connection with the communication bus; the communication bus is also connected with an energy storage assembly; the communication bus is connected with a multifunctional station controller, and the AC/DC power supply screen provides power supply required by work for each device.
The energy storage assembly comprises a DC/DC converter and an energy storage cabin; the high-voltage side of the DC/DC converter is connected with the middle supporting capacitor of the bidirectional converter, the low-voltage side of the DC/DC converter is connected with the energy storage cabin, and the energy storage cabin is connected with the communication bus.
The utility model discloses a characteristics still lie in:
the multifunctional station controller comprises an external standard CPCI case, a heat radiation fan is installed at the bottom of the standard CPCI case, a power supply system is installed on one side, a plurality of slots are formed in the other side, a DSP + FPGA core control board, an analog input/output port, a digital input/output port, an optical fiber signal input/output port and a multifunctional communication interface are sequentially connected from left to right and are connected with a communication and power supply back board.
And the analog quantity input/output port acquires voltage and current signals of the high-voltage sides of the A end and the B end of the traction contact network in real time.
The digital quantity input/output port collects the working state and action information of the high-voltage electrical appliance A and the high-voltage electrical appliance B in real time, such as an isolating switch, a circuit breaker, a grounding switch and the like.
The digital quantity input/output port collects various switching values of the step-down transformer A and the step-down transformer B in real time, such as signals of heavy gas, light gas, pressure, oil level, overtemperature and the like.
The optical fiber signal input/output port collects signals of the bidirectional converter.
The multifunctional communication interface comprises a CAN, an RS485 and an Ethernet interface.
The DSP + FPGA core control board receives and processes signals collected by the analog input/output port, the digital input/output port, the optical fiber signal input/output port and the multifunctional communication interface, the analog signals form a network voltage signal, a power signal, a phase signal, an energy signal and the like, and the digital signals form running conditions or operation commands.
The multi-function station controller employs a 110VDC power supply.
The utility model has the advantages that: the voltage and current signals of the high-voltage side can be acquired through the analog quantity acquisition port, the working state and action information of a disconnecting switch, a circuit breaker and a grounding switch and various switching values such as signals of heavy gas, light gas, pressure, oil level, over-temperature and the like can be acquired through the digital quantity acquisition port. The controller receives the switching value signals, processes the signals by logic programming to form switching commands, and controls each subsystem or component.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the multi-station controller system for railway regenerative power utilization of the present invention;
fig. 2 is a block diagram of the multi-function station controller of the present invention;
fig. 3 is a schematic structural diagram of the multi-function station controller of the present invention.
In the figure: 1. the system comprises a traction contact net A end, 2, a high-voltage electrical apparatus A, 3, a step-down transformer A, 4, a bidirectional converter, 5, a step-down transformer B, 6, a high-voltage electrical apparatus B, 7, a traction contact net B end, 8, a DC/DC converter, 9, an energy storage cabin, 10, a multifunctional station controller, 11, an AC/DC power supply screen, 12, a communication bus, 13, a DSP + FPGA core control board, 14, an analog input/output port, 15, a digital input/output port, 16, an optical fiber signal input/output port, 17, a multifunctional communication interface, 18, a power supply system and 19, a cooling fan
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, in a multifunctional station controller system for railway regenerative power utilization, an a end 1 of a traction contact network is connected with a high-voltage electrical apparatus a2, and the high-voltage electrical apparatus a2 is connected with a bidirectional converter 4 through a step-down transformer A3; the B end 7 of the traction contact net is connected with a high-voltage electrical apparatus B6, and a high-voltage electrical apparatus B6 is connected with the bidirectional converter 4 through a step-down transformer B5; the high-voltage electrical appliance A2, the step-down transformer A3, the bidirectional converter 4, the high-voltage electrical appliance B6 and the step-down transformer B5 are all in communication connection with the communication bus 12; the communication bus 12 is also connected with an energy storage cabin 9; the communication bus 12 is connected with a multifunctional station controller 10, and the AC/DC power supply screen 11 provides power supply for each device.
The AC/DC power supply screen 11 can provide power for three-phase 380V, single-phase 220V and DC 110V;
the high-voltage electrical apparatus A2 and the high-voltage electrical apparatus B6 comprise: the device comprises an isolating switch, a lightning arrester, a circuit breaker, a voltage transformer and a current transformer;
the energy storage assembly comprises a DC/DC converter 8 and an energy storage cabin 9; the high-voltage side of the DC/DC converter 8 is connected with the middle support capacitor of the converter 4, the low-voltage side is connected with the energy storage cabin 9, and the energy storage cabin 9 is connected with the communication bus 12.
Surplus regenerative electric energy on the power grid can be stored in the energy storage cabin 9 by the DC/DC converter 8, and the electric energy can be returned to the power grid through the DC/DC converter 8 and the bidirectional converter 4 when the power grid has power demand, so that the purpose of energy conservation is achieved.
The energy storage assembly is a system capable of storing electric energy and supplying power, and has the functions of energy fusion, peak clipping and valley filling, frequency modulation and voltage regulation and the like. The solar energy and wind energy can be smoothly output, and the impact on a power grid and users caused by randomness, intermittence and fluctuation of the solar energy and wind energy can be reduced; the electricity charge expenditure of the user can be reduced by charging in the valley price period and discharging in the peak price period; when the large power grid is powered off, the power grid can operate in an isolated island mode, and uninterrupted power supply for users is guaranteed. The energy fusion enables alternate load balance of the traction transformer, improves the utilization rate of the transformer, reduces the peak power of the transformer, cuts peaks and fills valleys, and reduces basic electricity charge.
The high-voltage electrical apparatus A2 and the high-voltage electrical apparatus B6 are used as switch equipment of a system access power grid, the step-down transformer A3, the step-down transformer B5 and the bidirectional converter 4 are used as bridges for connecting and fusing power grids at two ends, and mutual fusion of regenerative electric energy between the two power distribution grids is realized.
As shown in fig. 2-3, the multifunctional station controller 10 includes an external standard CPCI chassis, the CPCI chassis is flexibly configured and freely expandable, and facilitates troubleshooting and later upgrading expansion, a heat dissipation fan 19 is installed at the bottom of the standard CPCI chassis, a power supply system 18 is installed at one side, a plurality of slots are arranged at the other side, and a DSP + FPGA core control board 13, an analog input/output port 14, a digital input/output port 15, an optical fiber signal input/output port 16 and a multifunctional communication interface 17 are sequentially connected in order from left to right and are all connected with a communication and power supply backplane.
The multifunction station controller 10 realizes connection communication with each functional device through the communication bus 12, and realizes data acquisition, state monitoring and instruction transmission.
The analog quantity input/output port 14 collects voltage and current signals of the high-voltage sides of the end 1 of the traction contact net and the end 7 of the traction contact net in real time.
The digital quantity input/output port 15 collects the working state and action information of the high-voltage electrical apparatus a2 and the high-voltage electrical apparatus B6 in real time, such as a disconnecting switch, a circuit breaker, a grounding switch and the like.
The digital quantity input/output port 15 collects various switching values of the step-down transformer a3 and the step-down transformer B5 in real time, such as signals of heavy gas, light gas, pressure, oil level, over temperature and the like.
The optical fiber signal input/output port 16 collects signals of the bidirectional converter 4.
The multifunctional communication interface 17 comprises a CAN interface, an RS485 interface and an Ethernet interface.
The DSP + FPGA core control board 13 receives and processes signals collected by the analog input/output port 14, the digital input/output port 15, the optical fiber signal input/output port 16 and the multifunctional communication interface 17, calculates parameters of a power supply arm such as forward active power, forward reactive power, reverse active power, reverse reactive power and power factors, forms analog signals into voltage signals, power signals, phase signals, energy signals and the like, and forms running conditions or operation commands by the digital signals to control each part.
The DSP and the FPGA in the DSP + FPGA core control board 13 have strong control capability, the FPGA has strong sequential control and logic operation capability, and the DSP and the FPGA make up for the shortages to exert advantages. The DSP adopts a programming method to serially process algorithms and instructions, and also can adopt an interrupt mode to process requirements and emergency conditions with higher real-time performance, and the FPGA can process data and instructions with higher repeatability in parallel by utilizing a hardware method.
The multi-function station controller 10 employs a 110VDC supply.
The data to be stored is sent to the upper computer for storage through the multifunctional communication interface 17 according to a certain time interval, and the data of a certain time period can be stored by the multifunctional controller 10 by using a data storage card, so that the data can be conveniently stored in field inquiry and fault.
The utility model has the advantages that: the voltage and current signals of the high-voltage side can be acquired through the analog quantity acquisition port, the working state and action information of a disconnecting switch, a circuit breaker and a grounding switch and various switching values such as signals of heavy gas, light gas, pressure, oil level, over-temperature and the like can be acquired through the digital quantity acquisition port. The multifunctional station controller receives the analog quantity and switching value signals, processes the signals by digital signal processing and logic programming to form operation data and action instructions, and controls each subsystem or component to complete the designed functions of the system.
Claims (10)
1. A multifunctional station controller system for railway regenerative electric energy utilization is characterized in that an A end (1) of a traction contact network is connected with a high-voltage electrical appliance A (2), and the high-voltage electrical appliance A (2) is connected with a bidirectional converter (4) through a step-down transformer A (3); the B end (7) of the traction contact net is connected with a high-voltage electrical appliance B (6), and the high-voltage electrical appliance B (6) is connected with the bidirectional converter (4) through a step-down transformer B (5); the high-voltage electric appliance A (2), the step-down transformer A (3), the bidirectional converter (4), the high-voltage electric appliance B (6) and the step-down transformer B (5) are all in communication connection with the communication bus (12); the communication bus (12) is also connected with an energy storage assembly; the communication bus (12) is connected with a multifunctional station controller (10), and the AC/DC power supply screen (11) provides power supply required by the work for each device.
2. A multi-function station controller system for railroad regenerative power utilization according to claim 1, characterized in that the energy storage components comprise DC/DC converters (8) and energy storage compartments (9); the high-voltage side of the DC/DC converter (8) is connected with the middle support capacitor of the bidirectional converter (4), the low-voltage side of the DC/DC converter is connected with the energy storage cabin (9), and the energy storage cabin (9) is connected with the communication bus (12).
3. The multifunctional station controller system for railway regenerative power utilization according to claim 1, wherein the multifunctional station controller (10) comprises an external standard CPCI case, a heat dissipation fan (19) is installed at the bottom of the standard CPCI case, a power supply system (18) is installed at one side, a plurality of slots are formed at the other side, and a DSP + FPGA core control board (13), an analog input/output port (14), a digital input/output port (15), an optical fiber signal input/output port (16) and a multifunctional communication interface (17) are sequentially connected from left to right and are connected with a communication and power supply backplane.
4. The multifunctional station controller system for railway regenerative power utilization according to claim 3, wherein the analog input/output port (14) collects voltage and current signals of the high-voltage sides of the A end (1) and the B end (7) of the traction catenary in real time.
5. The multifunctional station controller system for railway regenerative power utilization according to claim 3, wherein the digital input/output port (15) collects the operation state and action information of the high voltage electrical appliance A (2) and the high voltage electrical appliance B (6) in real time.
6. The multifunction station controller system for railway regenerative power utilization according to claim 3, characterized in that the digital quantity input/output port (15) collects various switching quantities of the step-down transformer A (3) and the step-down transformer B (5) in real time.
7. A station controller system for regenerative energy utilisation of railways according to claim 3, characterised in that said fibre-optic signal input/output port (16) collects the signals of a bidirectional converter (4).
8. A multifunctional station controller system for regenerative electric energy utilisation of railways according to claim 3, characterised in that said multifunctional communication interface (17) comprises CAN, RS485, ethernet interface.
9. The multifunctional station controller system for railway regenerative power utilization according to claim 3, wherein the DSP + FPGA core control board (13) receives and processes signals collected by the analog input/output port (14), the digital input/output port (15), the fiber signal input/output port (16) and the multifunctional communication interface (17), and the analog signals form voltage signals, power signals, phase signals and energy signals, and the digital signals form operation conditions or operation commands.
10. A multi-function station controller system for regenerative power utilization of railroads according to claim 3, characterized in that the multi-function station controller (10) is powered with 110 VDC.
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| CN202020675641.8U CN212572093U (en) | 2020-04-28 | 2020-04-28 | Multifunctional station controller system for railway regenerative electric energy utilization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131484A (en) * | 2021-04-29 | 2021-07-16 | 西安开天铁路电气股份有限公司 | Distributed railway regenerative electric energy cloud control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131484A (en) * | 2021-04-29 | 2021-07-16 | 西安开天铁路电气股份有限公司 | Distributed railway regenerative electric energy cloud control system |
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