CN105305465B - A kind of voltage powerless control system for electric railway - Google Patents
A kind of voltage powerless control system for electric railway Download PDFInfo
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- CN105305465B CN105305465B CN201510834631.8A CN201510834631A CN105305465B CN 105305465 B CN105305465 B CN 105305465B CN 201510834631 A CN201510834631 A CN 201510834631A CN 105305465 B CN105305465 B CN 105305465B
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Abstract
The invention provides a kind of voltage powerless control system for electric railway; include Voltage and reactive power controller, the first magnet controlled reactor trip protection component and the second magnet controlled reactor trip protection component; the first magnet controlled reactor trip protection component and the second magnet controlled reactor trip protection component turn on connection with Voltage and reactive power controller; and two sections are articulated in respectively so that on the bus of block switch connection, and Voltage and reactive power controller turns on connection with block switch.So; each electricity of two sections of buses and two magnet controlled reactors can be sampled simultaneously on same Voltage and reactive power controller; control is calculated in real time; and run three kinds of modes with two magnet controlled reactor paired runnings, two magnet controlled reactor split operations and separate unit magnet controlled reactor; still can effective compensation when the maintenance of magnet controlled reactor or capacitive reactive power change greatly; compensation efficiency is high; it is provided simultaneously with the breaker tripping and closing operation circuit and defencive function of two magnet controlled reactors, it is stable performance, reliable.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of electrified railway control, and particularly relates to a voltage reactive power control system for an electrified railway.
[ background of the invention ]
The railway plays an important role in the transportation system of China as an important facility of national economy and a popular transportation tool. The electrified railway is different from the traditional railway of a steam locomotive or a diesel locomotive, and the electrified railway refers to the railway which obtains electric energy from an external power supply or a traction power supply system and runs by a traction train of an electric locomotive, and comprises the electric locomotive, a mechanical facility, the traction power supply system, various electric devices, corresponding railway communication equipment, signals and other equipment. The electrified railway has the advantages of large transportation capacity, high running speed, less energy consumption, low operation cost, good working conditions and the like, realizes electrification of a main railway with large transportation capacity and mountain railways with steep slopes and long tunnels, and has obvious superiority in technology and economy.
Electric energy of an electric locomotive in an electrified railway is provided by a traction power supply system, and the traction power supply system mainly comprises a traction substation and a contact network. The traction substation is built near the railway, and the voltage of the power grid is sent to a contact network above the railway through a feeder line after being subjected to voltage reduction and appropriate conversion. The most of the feeders from the traction substation to the contact network adopt underground cables, particularly the feeders of bridges and tunnels in mountainous areas, and all adopt underground cables. The underground cables have large distributed capacitance, the distributed capacitance can cause the capacitive reactive power of the power grid to be increased without work, more seriously, the capacitive effect of the distributed capacitance can cause the voltage of the lead-in end of the power grid with traction variation to be seriously increased, and if the voltage is not compensated and controlled, the safe operation of equipment is threatened.
[ summary of the invention ]
At present, the compensation capacitive reactive modes of the power system and the electrified railway mainly comprise modes of TCR (thyristor controlled reactor), MCR (magnetically controlled reactor), Static Var Generator (SVG) of a full-control power electronic device and the like. However, in the TCR mode, dynamic stepless smooth regulation is realized, the response speed is high, but the thyristor is connected in series in a high-voltage loop, so that faults are easy to occur, the reliability is low, and the harmonic wave is large; the SVG mode has the advantages of dynamic stepless smooth regulation, fastest response speed, capability of sending leading and lagging reactive power, advanced technology, easy failure of the IGBT when connected in a high-voltage loop, lower reliability and very high cost. In general, the most used is also MCR (magnetically controlled reactor); the MCR mode developments stepless smooth regulation, response speed is fast, thyristor both ends voltage is lower, it is reliable and stable high, the harmonic is little, area is little, the cost is relatively lower, but current MCR adopts direct current magnetism-assisting principle, secondary direct current through the continuous change reactor, change the saturation degree of the inside a small segment of iron core of coil, and then change the magnetic permeability of whole iron core, thereby realize that the reactance value is adjustable in succession, consequently, as long as control reactor's secondary direct current, just can control the inductive reactive power that the reactor produced, and the control to direct current is then realized through the conduction angle that changes controllable rectification.
In addition, in the voltage capacitive reactive power control compensation application of the electrified railway, the reactor is connected in parallel with the system bus. The distributed capacitance electricity generates fixed capacitive reactive power Qc, the output inductive reactive power of the magnetically controlled reactor is Ql, the reactive power of the load is Qs, the inductive reactive power is generally inductive, and the basic principle of control compensation is to keep the total reactive power Q (Q ═ Qs + Ql-Qc) at a constant value.
At present, in the MCR (magnetically controlled reactor) mode reactive power control compensation application of an electrified railway, most of the reactive power control compensation is carried out by adopting one reactor, the reactive power or the power factor of a system is singly detected, other control protection functions are basically not provided, the control compensation cannot be carried out when the reactor breaks down, and the actual operation is not very convenient.
In order to solve the technical problems in the prior art, the invention provides a voltage reactive power control system which can simultaneously sample each electric quantity of two sections of buses and two magnetically controlled reactors on the same voltage reactive power controller, calculate and control in real time, has three modes of parallel operation of the two magnetically controlled reactors, split operation of the two magnetically controlled reactors and operation of a single magnetically controlled reactor according to each switch state of sampling of an input signal, can still effectively compensate when one magnetically controlled reactor is maintained or the capacitive reactive power changes greatly, has high compensation efficiency, has tripping and closing operation loops and protection functions of the two magnetically controlled reactors, simplifies a system control circuit, and has stable and reliable performance.
The technical scheme adopted by the invention for solving the problems in the prior art is as follows:
a voltage reactive power control system for an electrified railway comprises a voltage reactive power controller, a first magnetic control reactor tripping protection assembly and a second magnetic control reactor tripping protection assembly, wherein the first magnetic control reactor tripping protection assembly and the second magnetic control reactor tripping protection assembly are both connected with the voltage reactive power controller in a conduction mode and are respectively connected to two sections of buses connected with a section switch in a hanging mode, and the voltage reactive power controller is connected with the section switch in a conduction mode.
Furthermore, the first magnetic control reactor tripping protection component and the second magnetic control reactor tripping protection component respectively comprise a main transformer, a first current transformer, a second current transformer, a main transformer circuit breaker, a bus voltage transformer group, a magnetic control reactor circuit breaker, a traction transformer and a magnetic control reactor which are in conduction connection with the voltage reactive controller; the main transformer, the first current transformer and the main transformer circuit breaker are sequentially connected in series and then connected to the bus, the magnetic control reactor, the second current transformer and the magnetic control reactor circuit breaker are sequentially connected in series and then connected to the bus, and the bus voltage transformer group and the traction transformer are directly connected to the bus in a hanging mode.
Furthermore, the voltage reactive controller comprises a rear plug-in chassis adopting a standard 6U half width, a power module plugboard, an optical fiber signal module plugboard, a main processing module plugboard, an opening signal module plugboard and an alternating current sampling module plugboard are arranged in the chassis, the optical fiber signal module plugboard, the opening signal module plugboard and the alternating current sampling module plugboard are all in conductive connection with the main processing module plugboard, and the power module plugboard is electrically connected with the optical fiber signal module plugboard, the main processing module plugboard, the opening signal module plugboard and the alternating current sampling module plugboard.
Furthermore, the chassis also comprises a backboard, wherein wires are printed on the backboard, and the power module plugboard, the optical fiber signal module plugboard, the main processing module plugboard, the incoming signal module plugboard, the outgoing signal module plugboard and the alternating current sampling module plugboard are mutually connected through the wires printed on the backboard.
Furthermore, two 96-pin Haiding sockets are arranged on the lower sides of the right sides of the power supply module plugboard, the optical fiber signal module plugboard, the main processing module plugboard, the incoming signal module plugboard, the outgoing signal module plugboard and the alternating current sampling module plugboard, and 12 96-pin Haiding plugs are arranged on the back board; when the intelligent cabinet is assembled, the power module plug board, the optical fiber signal module plug board, the main processing module plug board, the opening-in signal module plug board, the opening-out signal module plug board and the alternating current sampling module plug board are all inserted into the cabinet from the back, and the Hading socket on the inner side is firmly connected with the Hading plug on the back board.
Furthermore, the main processing module plugboard adopts a DSP signal processor, an FPGA programmable logic chip and an ADC analog-to-digital conversion chip, address buses and data buses of the DSP signal processor and the ADC analog-to-digital conversion chip are both connected to the FPGA programmable logic chip, and a main program and an interrupt service program with a soft start function are integrated in the DSP signal processor.
The invention has the following beneficial effects:
by adopting the technical scheme, the invention can simultaneously sample each electric quantity of two sections of buses and two magnetically controlled reactors on the same voltage reactive controller, calculate and control in real time, has three modes of parallel operation of the two magnetically controlled reactors, split operation of the two magnetically controlled reactors and operation of a single magnetically controlled reactor according to each switch state of open-close signal sampling, can still effectively compensate when one magnetically controlled reactor is maintained or the capacitive reactive power changes greatly, greatly improves the compensation efficiency and the equipment operation efficiency, has tripping and closing operation loops and protection functions of the two magnetically controlled reactors, reduces the wiring of a system, simplifies a control circuit, has a voltage priority control function, can improve the power supply reliability under some extreme conditions, and further improves the operation reliability of system equipment, therefore, the market competitiveness is strong, and the popularization and the application are easy.
In addition, the voltage reactive controller can install each module plugboard on the chassis according to the actual application requirements, the structure is simple, the installation and the disassembly are convenient and quick, the upgrading and the maintenance are easy, the cost is low, and the voltage reactive controller is more beneficial to market popularization and application; meanwhile, the soft start and the re-investment are carried out, so that the generated reactive power can be increased to a normal value within a set time from the minimum value, the impact on a power grid and a magnetic control reactor is reduced, the performance is more stable and reliable, and the service life of equipment is effectively prolonged.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of an embodiment of a voltage reactive power control system for an electrified railway according to the invention;
FIG. 2 is a schematic diagram of a chassis structure of a voltage reactive controller in an embodiment of a voltage reactive control system for an electrified railway according to the invention;
fig. 3 is a schematic structural diagram of the voltage reactive controller plug boards in the embodiment of the voltage reactive control system for the electrified railway.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 3:
the embodiment of the invention provides a voltage reactive power control system for an electrified railway, which comprises a voltage reactive power controller 1, a first magnetically controlled reactor tripping protection component 2 and a second magnetically controlled reactor tripping protection component 3, wherein the first magnetically controlled reactor tripping protection component 2 and the second magnetically controlled reactor tripping protection component 3 are both in conductive connection with the voltage reactive power controller 1 and are respectively hung on two sections of buses 12 connected by section switches 13, and the voltage reactive power controller 1 is in conductive connection with the section switches 13.
The concrete structure can be as follows: the first magnetically controlled reactor tripping protection component 2 and the second magnetically controlled reactor tripping protection component 3 both comprise a main transformer 4, a first current transformer 5, a second current transformer 6, a main transformer breaker 7, a bus voltage transformer group 8, a magnetically controlled reactor breaker 9, a traction transformer 10 and a magnetically controlled reactor 11, wherein the main transformer 4, the first current transformer 5, the second current transformer 6, the main transformer breaker 7, the bus voltage transformer group 8, the magnetically controlled reactor breaker 9, the traction transformer 10 and the magnetically controlled reactor 11 are all in conduction connection with the voltage reactive controller 1 (specifically, the current of the main transformer 4, the current of the magnetically controlled reactor 11 are connected into the voltage reactive controller, the switch position signal of the main transformer 4, the switch position signal of the magnetically controlled reactor 11 and the switch position signal of the section switch 13 of the bus 12 are connected into the voltage reactive controller 1, the open contact signal of the voltage reactive controller 1 is connected to the trip contact of the magnetically controlled reactor breaker 9, and the trigger signal of the direct current rectification circuit of the magnetically controlled reactor 11 comes from the voltage reactive controller. ) (ii) a And main transformer 4, first current transformer 5 and main transformer circuit breaker 7 connect in series in proper order on bus 12, magnetically controlled reactor 11, second current transformer 6 and magnetically controlled reactor circuit breaker 9 connect in series in proper order on bus 12, bus voltage transformer group 8 and traction transformer 10 directly connect in on bus 12.
When the voltage reactive power control system of the invention normally operates, the voltage reactive power controller 1 measures the voltage, current, active power, reactive power and power factors of two sections of buses 12 at the same time, if the voltage of the buses 12 is between the upper and lower limit voltage fixed values, the reactive power or the power factor is taken as a target control quantity, a phase-shifting trigger signal is output to a direct current rectification circuit of the magnetically controlled reactor 11, the magnetically controlled reactor 11 generates proper reactive power, and the reactive power or the power factor of the system is maintained at a constant value; if the voltage of the bus 12 is higher than the upper limit or lower than the lower limit, the voltage is used as a control quantity, a phase-shifting trigger signal is output to a direct current rectification circuit of the magnetically controlled reactor 11, so that the magnetically controlled reactor 11 generates proper reverse reactive power, and the voltage of the bus 12 is pulled back to be between the upper limit voltage and the lower limit voltage. Meanwhile, the voltage reactive controller 1 can automatically identify the running state of the system according to the sampled switch position signal of the main transformer 4, the sampled switch position signal of the magnetically controlled reactor 11 and the sampled switch position signal of the section switch 13; if the section switch 13 is turned off, each magnetically controlled reactor 11 is operated at its own control target amount; if the section switch 13 is closed, each of the magnetoreactors 11 is operated at the control target amount and the same control angle of the magnetoreactor 11 of the first magnetoreactor trip protection assembly 2.
When the voltage reactive power control system of the invention finds a fault, the voltage reactive power controller 1 compares the measured current of each phase and the difference value of each phase of the current of the magnetically controlled reactor 11 with the corresponding protection fixed value, and when the current of each phase and the difference value of each phase of the current of the magnetically controlled reactor 11 have overcurrent, quick break and unbalance current faults, the magnetically controlled reactor breaker 9 of the corresponding magnetically controlled reactor 11 is subjected to tripping protection.
Thus, the voltage reactive power control system for the electrified railway of the invention can simultaneously sample each electric quantity of two sections of buses 12 and two magnetically controlled reactors 11 on the same voltage reactive power controller 1 by adopting a single-bus subsection or double-bus operation mode, calculate and control in real time, has three modes of two magnetically controlled reactors 11 parallel operation, two magnetically controlled reactors 11 split operation and single magnetically controlled reactor 11 operation according to each switch state of open signal sampling, can still carry out effective compensation when one magnetically controlled reactor 11 is maintained or the capacitive reactive change is large, greatly improves the compensation efficiency, also improves the equipment operation efficiency, simultaneously has tripping and closing operation loops and protection functions of the two magnetically controlled reactors 11, reduces the wiring of the system, simplifies the control circuit, and also has a voltage priority control function, and the reliability of power supply can be improved under extreme conditions, and the reliability of system equipment operation is further improved, so that the market competitiveness is strong, and the popularization and the application are easy.
As a preferred embodiment of the present invention, the voltage reactive controller 1 includes a rear plug-in chassis 14 with a standard 6U half width, a power module plug board 141, an optical fiber signal module plug board 142, a main processing module plug board 143, an incoming signal module plug board 144, an outgoing signal module plug board 145 and an ac sampling module plug board 146 are disposed in the chassis 14, the optical fiber signal module plug board 142, the incoming signal module plug board 144, the outgoing signal module plug board 145 and the ac sampling module plug board 146 are all connected to the main processing module plug board 143 in a conduction manner, and the power module plug board 141 is electrically connected to the optical fiber signal module plug board 142, the main processing module plug board 143, the incoming signal module plug board 144, the outgoing signal module plug board 145 and the ac sampling module plug board 146. Wherein,
the ac sampling module board 146 is mainly used to convert the incoming voltage and current signals into weak current signals, perform appropriate conditioning, and send the weak current signals to the main processing module board 143 for analog-to-digital conversion. Such as: the current and voltage (voltage 100V, current 5A) are converted into a 0-10V alternating weak current signal through a small voltage current transformer, the signal is filtered by a second-order low-pass filter to remove useless signals above 1kHz and then is sent to a proportional amplifying circuit for proper amplification or attenuation, and the final output signal is sent to an A/D conversion circuit of a main processing module plug board 143 for analog-to-digital conversion.
The switch-in signal module plug board 144 is mainly used for converting a strong electric switch-in signal of the external AC220V into two digital signals of '0' and '1', and the input signal of the switch-in signal module plug board is an alternating current signal of 220V. The method specifically comprises the following steps: an input 220V alternating current signal is divided by a resistor and then is connected to a primary side of a bidirectional photoelectric coupler (the model is PC814), a light emitting diode inside the bidirectional photoelectric coupler is conducted to emit light, a secondary transistor is conducted, 5V direct current voltage passes through the transistor, so that the output end is high level '1', and conversely, if no 220V alternating current signal exists at the input end, the bidirectional photoelectric coupler is cut off, and the output end is low level '0'.
The switch-out signal module board 145 is mainly used for converting protection and fault signals output by the main processing module board 143 into the closing and conducting of relay contacts. The method specifically comprises the following steps: the digital signal output by the main processing module plug board 143 is current-limited by a resistor and then applied to the primary of a photoelectric coupler (model is TLP627), and a 24V voltage is applied to two ends of a coil of a small-sized intermediate relay through the secondary of the photoelectric coupler; when the output digital signal is '1', the photoelectric coupler is conducted, the small intermediate relay acts, and the conversion contact of the small intermediate relay is converted; on the contrary, if the output digital signal is "0", the photocoupler is turned off and the small intermediate relay does not operate.
The optical fiber signal module plugboard 142 has two functions, namely, amplifying 12 paths of trigger digital signals output by the main processing module to drive the optical fiber, and receiving, amplifying and shaping 6 paths of state signals of the magnetically controlled reactor sent back by the optical fiber, and then sending the signals to the main processing module plugboard 143 for processing. The method specifically comprises the following steps: the optical fiber signal module plug board 142 is provided with a receiving circuit and a transmitting circuit, wherein the main element of the receiving circuit is an R-2521 optical fiber receiving head, and the optical fiber signal receiving head is properly filtered by adopting a plurality of resistance capacitors and then sent to the main processing module plug board 143 for processing; the transmitting circuit mainly adopts two small complementary triodes to drive the T-1521 optical fiber transmitting head and outputs an optical signal triggering the thyristor.
The main processing module plug board 143 is a core of the voltage reactive controller 1, and is mainly used for analyzing and calculating a digital quantity input by the input signal board and an analog signal input by the analog signal board, outputting a control quantity or executing a corresponding protection control logic. The method specifically comprises the following steps: the main processing module plug board 143 mainly employs a DSP signal processor (e.g., a signal processor with a model of TMS28335 PGFA), an FPGA programmable logic chip (e.g., a field programmable logic chip with a model of EP1C6Q 240), an ADC analog-to-digital conversion chip (e.g., an analog-to-digital conversion chip with a model of AD 7658), and the like, where address buses and data buses of the DSP signal processor and the ADC analog-to-digital conversion chip are both connected to the FPGA programmable logic chip. The user control program is stored in FLASH (FLASH memory) of the DSP signal processor and runs in an internal RAM (random access memory) of the DSP signal processor, an ADC (analog-to-digital converter) chip converts an analog signal into a digital signal and sends the digital signal to the DSP signal processor for reading through an FPGA (field programmable gate array) programmable logic chip, the input quantity is also sent to the DSP signal processor for reading through the FPGA programmable logic chip, the control quantity analyzed and calculated by the DSP signal processor is converted into an optical fiber signal through the FPGA programmable logic chip, and the protection signal is converted into the output signal through the FPGA programmable logic chip.
Moreover, the chassis 14 further includes a backplane 147, the backplane 147 is printed with wires, and the power module board 141, the optical fiber signal module board 142, the main processing module board 143, the incoming signal module board 144, the outgoing signal module board 145 and the ac sampling module board 146 are connected to each other through the wires printed on the backplane 147. The concrete structure can be as follows: the power module plugboard 141, the optical fiber signal module plugboard 142, the main processing module plugboard 143, the incoming signal module plugboard 144, the outgoing signal module plugboard 145 and the alternating current sampling module plugboard 146 are respectively provided with two 96-pin Haiding sockets at the right upper side and the right lower side, and 12 96-pin Haiding plugs are arranged on the back board 147; when assembled, the power module board 141, the fiber optic signal module board 142, the main processing module board 143, the ingress signal module board 144, the egress signal module board 145 and the ac sampling module board 146 are all inserted into the chassis 14 from the rear, and the internal hart jack is firmly connected to the hart plug on the backplane 147.
Therefore, the voltage reactive controller 1 of the voltage reactive control system for the electrified railway can install each module plugboard on the chassis 14 according to the actual application requirements, has simple structure, convenient and quick installation and disassembly, easy upgrading and maintenance and low cost, and is more beneficial to market popularization and application.
In addition, the main processing module plug board 143 employs a DSP signal processor, an FPGA programmable logic chip, and an ADC analog-to-digital conversion chip, and the DSP signal processor is integrated with a main program and an interrupt service program having a soft start function. When the main program is executed, the initialization program is executed firstly, then all fixed values stored in the EEPROM chip are read, the customizations are converted into protection and control parameters after calculation, finally the communication subprogram is executed, the control command sent by the upper computer is read, and all state parameters of the controller are sent to the upper computer for display. The interrupt service routine is executed once every 0.2ms, when fault interrupt occurs, the A/D sampling subprogram is executed firstly, then the input quantity is read, then each electric quantity is calculated according to the A/D sampling result, then control calculation is carried out, and finally protection logic is executed; after the fault of the magnetically controlled reactor is removed, the magnetically controlled reactor is subjected to soft start and re-input through the service interruption program after the fault is processed, so that the generated reactive power can be increased to a normal value within a set time from a minimum value, the impact on a power grid and the magnetically controlled reactor 11 is reduced, the performance is more stable and reliable, and the service life of equipment is effectively prolonged.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments and is not intended to limit the practice of the invention to these embodiments. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (5)
1. A voltage reactive control system for an electrified railway, characterized in that: the system comprises a voltage reactive controller (1), a first magnetically controlled reactor tripping protection component (2) and a second magnetically controlled reactor tripping protection component (3), wherein the first magnetically controlled reactor tripping protection component (2) and the second magnetically controlled reactor tripping protection component (3) are both in conduction connection with the voltage reactive controller (1) and are respectively connected to two sections of buses (12) connected by section switches (13) in a hanging mode, and the voltage reactive controller (1) is in conduction connection with the section switches (13);
the first magnetically controlled reactor tripping protection assembly (2) and the second magnetically controlled reactor tripping protection assembly (3) respectively comprise a main transformer (4), a first current transformer (5), a second current transformer (6), a main transformer breaker (7), a bus voltage transformer group (8), a magnetically controlled reactor breaker (9), a traction transformer (10) and a magnetically controlled reactor (11), which are in conductive connection with the voltage reactive controller (1); the system comprises a main transformer (4), a first current transformer (5) and a main transformer circuit breaker (7), wherein the main transformer, the first current transformer and the main transformer circuit breaker are sequentially connected in series and then connected to a bus (12), a magnetically controlled reactor (11), a second current transformer (6) and a magnetically controlled reactor circuit breaker (9) are sequentially connected in series and then connected to the bus (12), and a bus voltage transformer group (8) and a traction transformer (10) are directly connected to the bus (12).
2. The voltage reactive control system for an electrified railroad according to claim 1, characterized in that: the voltage reactive controller (1) comprises a rear plug-in type chassis (14) adopting a standard 6U half width, a power module plugboard (141), an optical fiber signal module plugboard (142), a main processing module plugboard (143), an input signal module plugboard (144), an output signal module plugboard (145) and an alternating current sampling module plugboard (146) are arranged in the chassis (14), the optical fiber signal module plugboard (142), the input signal module plugboard (144), the output signal module plugboard (145) and the alternating current sampling module plugboard (146) are all in conduction connection with the main processing module plugboard (143), and the power module plugboard (141) is electrically connected with the optical fiber signal module plugboard (142), the main processing module plugboard (143), the input signal module plugboard (144), the output signal module plugboard (145) and the alternating current sampling plugboard (146).
3. The voltage reactive control system for an electrified railroad according to claim 2, characterized in that: the chassis (14) further comprises a back panel (147), wherein wires are printed on the back panel (147), and the power module plug board (141), the optical fiber signal module plug board (142), the main processing module plug board (143), the incoming signal module plug board (144), the outgoing signal module plug board (145) and the alternating current sampling module plug board (146) are connected with each other through the wires printed on the back panel (147).
4. The voltage reactive control system for an electrified railroad according to claim 3, characterized in that: the power module plugboard (141), the optical fiber signal module plugboard (142), the main processing module plugboard (143), the incoming signal module plugboard (144), the outgoing signal module plugboard (145) and the AC sampling module plugboard (146) are respectively provided with two 96-pin Haiding sockets at the upper and lower sides of the right side, and 12 96-pin Haiding plugs are arranged on the back board (147); when the power supply module plug board (141), the optical fiber signal module plug board (142), the main processing module plug board (143), the signal module plug board (144) from the rear, the signal module plug board (145) from the rear and the alternating current sampling module plug board (146) are all inserted into the chassis (14), and the Hading socket on the inner side is firmly connected with the Hading plug on the back board (147).
5. The voltage reactive control system for an electrified railway according to claim 3 or 4, characterized in that: the main processing module plug board (143) adopts a DSP signal processor, an FPGA programmable logic chip and an ADC analog-to-digital conversion chip, address buses and data buses of the DSP signal processor and the ADC analog-to-digital conversion chip are both connected to the FPGA programmable logic chip, and a main program and an interrupt service program with a soft start function are integrated in the DSP signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510834631.8A CN105305465B (en) | 2015-11-25 | 2015-11-25 | A kind of voltage powerless control system for electric railway |
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| CN201510834631.8A CN105305465B (en) | 2015-11-25 | 2015-11-25 | A kind of voltage powerless control system for electric railway |
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| CN105305465A CN105305465A (en) | 2016-02-03 |
| CN105305465B true CN105305465B (en) | 2017-12-26 |
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| CN201510834631.8A Active CN105305465B (en) | 2015-11-25 | 2015-11-25 | A kind of voltage powerless control system for electric railway |
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| CN201937278U (en) * | 2011-03-12 | 2011-08-17 | 济南苏博电气有限公司 | 10KV voltage-regulating and grouping reactive power compensation complete equipment |
| CN102723719A (en) * | 2012-07-03 | 2012-10-10 | 北京国能子金电气技术有限公司 | Dynamic reactive voltage adjusting device for high voltage line and adjusting method thereof |
| CN103986167A (en) * | 2014-04-03 | 2014-08-13 | 珠海万力达电气股份有限公司 | Reactive compensation device and reactive compensation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201937278U (en) * | 2011-03-12 | 2011-08-17 | 济南苏博电气有限公司 | 10KV voltage-regulating and grouping reactive power compensation complete equipment |
| CN102723719A (en) * | 2012-07-03 | 2012-10-10 | 北京国能子金电气技术有限公司 | Dynamic reactive voltage adjusting device for high voltage line and adjusting method thereof |
| CN103986167A (en) * | 2014-04-03 | 2014-08-13 | 珠海万力达电气股份有限公司 | Reactive compensation device and reactive compensation method |
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