RU2419943C1 - Charging-discharging onshore facility for ship storage batteries with electric power supplied from high-voltage network - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: in the proposed charging-discharging facility with the so called "twelve-pulse rectification circuit" the high-voltage ac networks with frequency of 50 Hz and voltage of 6 or 10 kV are used for electric power supply with reversible controlled direct current of ship storage batteries, as well as the possibility of return of chemical energy stored in storage battery to high-voltage ac network is provided.

EFFECT: energy saving during multiple charging-discharging cycles of storage battery of high capacity.

5 cl, 1 dwg

Description

The invention relates to the field of electrical engineering and, in particular, to systems using semiconductor voltage converters to power large-capacity marine batteries with adjustable reverse direct current during molding charge-discharge cycles from high-voltage alternating current networks with a frequency of 50 Hz and a voltage of 6 or 10 kV. The invention can be used for automatic charge-discharge of rechargeable batteries at various objects (mobile and stationary) for industrial and military purposes.

Known charge-discharge converter ("Charging-discharge converter ZRP-150/50", http://www.blesk-nvf.ru/ZRP150-50.html), supplied by Limited Liability Company "Elmashprom", Russia, Nizhny Novgorod (http://www.promspravka.com/catalog/D/DL/31/1/10/5/50/130/auto/2/zaryadka 440. html), which is a three-phase thyristor reversing converter designed for charge, training charge, molding in the optimal charge-discharge mode up to ten 12-volt and up to five 24-volt batteries at the same time. In the discharge mode, the energy generated by the batteries is inverted to the supply network 3 ~ 50 Hz, 380/220 V. The disadvantage of this charge-discharge converter is that it switches the operating modes of the converter (charge, training charge, molding batteries in the mode charge-discharge) is done manually.

Known charge-discharge devices ("Rectifier unit VAZP-260 / 100-80 / 50M with microprocessor control system", http://www.elvpr.ru/preobraztechnic/zaryadpusk/VAZP_MPSAU.php, "Rectifier V-TPE-500 / 200-250 ", http://www.elvpr.ru/preobraztechnic/zaryadpusk/V-TPE-500(200)-250.php and" Automatic Charging Devices UZA Series ", http://www.elvpr.ru/ preobraztechnic / zaryadpusk / uza.php), commercially available from Elektrovypryamitel OJSC, Mordovia, Saransk (http://www.elvpr.ru/). The common disadvantages of these devices is the relatively small capacity of the batteries for which they are intended for power supply, and the possibility of their operation only from a low-voltage network of three-phase alternating current with a frequency of 50 Hz, voltage of 380 V.

The closest to the performance analogue, adopted as a prototype of the invention, is a "reversible voltage converter for transferring electricity between AC and DC networks" (RF Patent for the invention No. 2343615, IPC 2006: H02J 9/06, patent holder: Closed Joint-Stock Company IRIS").

This reversible voltage converter for transmitting electricity between AC and DC networks includes the first and second groups of consumers of DC voltage, connected in series to an AC voltage network with a group of consumers of AC voltage, a first current sensor, a first filter, a first rectifier inverter, a second filter , second inverter-rectifier, transformer, third inverter-rectifier, protection unit, third filter, second current sensor, DC voltage network with the battery; first and second voltage sensors, analog-to-digital converter, first, second and third blocks of power switch drivers, uninterruptible power supply with battery, microcontroller with random access memory, discrete input-output module, real-time clock, non-volatile memory, information adapter tires, information exchange bus, external control system, display and control panel. The information output of the first current sensor is connected to the first input of the analog-to-digital converter, the input-output of the AC voltage network with a group of AC voltage consumers is connected to the second input through the first voltage sensor, the output of the analog-to-digital converter is connected to the first input of the microcontroller with random access memory , a real-time clock is connected to the second input of the microcontroller with random access memory, is connected non-volatile to the third input a storage device, an indication and control panel is connected to the first input-output of the microcontroller with random access memory through a discrete input-output module, an external control system is connected to the second input-output through the information bus adapter and the data exchange bus, the first output of the microcontroller with random access memory through the first block of drivers of power switches connected to the control input of the first inverter-rectifier, the first group of voltage consumers is constant the current is connected to the output of the second filter, the second group of consumers of DC voltage is connected to the output of the DC voltage network with the battery, the information output of the second current sensor is connected to the third input of the analog-to-digital converter, input-output is connected to the fourth input through the second voltage sensor DC voltage network with battery, the second output of the microcontroller with random access memory through the second block of drivers of power keys is connected connected to the control input of the second inverter rectifier, the third output through the third block of power switch drivers is connected to the control input of the third inverter rectifier, the output of the AC voltage network with a group of AC voltage consumers is connected to the input of an uninterruptible power supply with a battery, the output of an uninterruptible power supply power supply with a battery connected to the corresponding power inputs of the microcontroller with random access memory analog-to-digital a converter, a first, second, and third block of power key drivers, a discrete input-output module, an indication and control panel, and an information bus adapter.

The disadvantages of the reversing voltage Converter prototype is the following:

- the use of triple conversion (using the first, second and third inverter-rectifier) of the AC voltage into a DC voltage and vice versa;

- the inability to control the temperature regime of the main power elements of the converter (power switches that are part of the inverters-rectifiers);

- lack of light and sound signaling about the state of the converter;

- the ability to work only from a low-voltage network of three-phase alternating current with a frequency of 50 Hz, voltage of 380 V.

The aim of the invention is to achieve the maximum possible savings in electricity consumed in the process of charging high-capacity batteries, and, associated with this, the solution of a set of problems:

- providing the possibility of using (instead of a low-voltage network of three-phase alternating current with a frequency of 50 Hz and a voltage of 380 V) for direct supply of a charge-discharge complex of high-voltage alternating current networks with a frequency of 50 Hz and a voltage of 6 or 10 kV, which can significantly reduce losses in the equipment of the power supply network (lowering transformer, switching equipment, power lines and supply cables) at significant load currents, which are consumed when charging batteries large mkosti;

- ensuring energy savings in a high-voltage network with a voltage of 6 or 10 kV AC (replenishment of electricity to power consumers connected to this AC network) due to the recovery of chemical energy accumulated in the battery when performing multiple charge-discharge cycles of the battery instead irretrievable loss of thermal dissipation in the load device;

- ensuring energy savings due to the implementation in the charge-discharge complex of an efficient rectification circuit with a high value of efficiency;

- ensuring effective normal and accelerated charge, training charge, molding in the mode of automatic charge-discharge of the plates of the battery due to the implementation in the charge-discharge complex of an effective rectification circuit with a low level of ripple;

- providing the ability to automatically switch the operating modes of the charge-discharge complex according to a given program or remotely using an external control system;

- providing the ability to automatically control the temperature of the main power elements of the Converter;

- providing light and sound signaling about the state of power supply networks and operating modes of the charge-discharge complex.

This goal is achieved by the fact that in the charge-discharge coastal complex for ship batteries with power from a high-voltage network, containing a 3 ~ 50 Hz AC voltage of 380 V connected in series, a third rectifier, a fourth filter, a first inverter, a transformer, a second rectifier, the third current sensor and a direct current network with a voltage of 175 ... 320 V with a battery; the fourth microcontroller with built-in analog-to-digital converter and an information bus adapter, to the first input of which the information output of the third current sensor is connected, to the second - through the seventh voltage sensor, the output of the third current sensor, and to the fourth - through the eighth voltage sensor, the AC output 3 ~ 50 Hz voltage of 380 V; the output of the fourth microcontroller with built-in analog-to-digital converter and an information bus adapter is connected to the control input of the first inverter through the third block of power key drivers; information exchange bus, to the first input-output of which an input-output of an external control system is connected, to the third - input-output of the fourth microcontroller with built-in analog-to-digital converter and an information bus adapter; the first and second block of power key drivers, the second and third filters, and the first current sensor, a computer was introduced, the first, second, third, fourth, fifth, sixth and ninth voltage sensors, a local control and control panel, the first, second, third, fourth and a fifth relay device, a pump control unit, a liquid cooling system pump, an audible alarm unit, an AC network of 3 ~ 50 Hz with a voltage of 6 kV and 10 kV, a 6/10 kV mains switch, a first, second, third and fourth circuit breaker, a switch triangle / stars and the primary winding of the high voltage transformer, the primary winding of the high voltage transformer, the first secondary winding of the high voltage transformer connected to a star, the first, second and third inductor, load device, load switch, first, fifth and sixth filter, remote light signaling panel, fan control circuit, fan unit, the second secondary winding of a high voltage transformer connected in a triangle, the first, second, third, fourth and fifth temperature sensors are glad power key actuators, first, second, third and fifth microcontroller with integrated analog-to-digital converter and data bus adapter, first and fourth rectifier, IGVT power key block, second, fourth and fifth current sensor, second inverter; the first computer output is connected through the fan control circuit to the input of the fan unit, the second to the input of the remote light signaling panel, the third to the control input of the first circuit breaker via the first relay device, the fourth to the liquid cooling pump through the pump control unit, and the fifth to the audible alarm unit, the sixth through the second relay device to the control input of the second circuit breaker, the seventh through the third relay device to the control input load switch, the eighth through the fourth relay device to the control input of the third circuit breaker, the ninth through the fifth relay device to the control input of the fourth circuit breaker; the output of the AC network 3 ~ 50 Hz with a voltage of 10 kV is connected to the first input of the computer through the first voltage sensor, to the second - through the second voltage sensor the output of the AC 3 ~ 50 Hz 6 kV voltage, to the third - the information output of the first circuit breaker, the fourth is the information output of the second circuit breaker, the fifth is the information output of the load switch, the sixth is the information output of the third circuit breaker, and the seventh is the information output of the fourth circuit breakers; the first input-output of the computer is connected to the input-output of the local monitoring and control panel, the second - to the second input-output of the information exchange bus; the fourth input-output of the data bus is connected to the input-output of the fifth microcontroller with integrated analog-to-digital converter and an information bus adapter, to the fifth - input and output of the third microcontroller with built-in analog-to-digital converter and an information bus adapter, to the sixth - input-output the first microcontroller with built-in analog-to-digital converter and data bus adapter, to the seventh - the input-output of the second microcontroller with built-in analog-to-digital converter data bus adapter and adapter; the input / output of the AC network 3 ~ 50 Hz of 6 kV voltage is connected to the first input-output of the 6/10 kV network switch, the second input and output of the AC ~ 3 ~ 50 Hz network of 10 kV voltage is connected; a 6/10 kV network switch, a first circuit breaker, a delta / star switch of a primary winding of a high voltage transformer and a primary winding of a high voltage transformer are connected in series; the first output of the primary winding of the high voltage transformer through the first secondary winding of the high voltage transformer connected in series, the second circuit breaker and the first inductor connected to the input of the first rectifier, the second through the second secondary winding of the high voltage transformer connected in series, the third circuit breaker and the second inductor connected to the input of the fourth rectifier; to the input of the primary winding of the high-voltage transformer through the first secondary winding of the high-voltage transformer connected in series, a load switch, a first filter, a fourth current sensor, a second inverter and a fifth filter, the output of the power IGBT key block is connected; the second output of the load switch is connected to the input of the load device; the gap between the third current sensor and a 175 ... 320 V DC network with a battery includes a third choke, a second filter, a first current sensor, a power IGBT key block, a third filter, a fourth circuit breaker and a second current sensor; the second output of the third inductor through a sixth filter and a fifth current sensor connected in series is connected to the second input of the power IGBT key block; the output of the first rectifier is connected to the input of the second filter; the output of the fourth rectifier is connected to the input of the sixth filter; the first temperature sensor of power switches radiators is connected to the first input of the first microcontroller with built-in analog-to-digital converter and data bus adapter, to the second - through the third voltage sensor, the output of the first current sensor, to the third - the information output of the first current sensor; a second temperature sensor of power switches radiators is connected to the first input of the second microcontroller with built-in analog-to-digital converter and data bus adapter, to the second through the fourth voltage sensor is the output of the second current sensor, to the third is the information output of the second current sensor, the output of the second microcontroller with built-in analog - a digital converter and an information bus adapter are connected through the first block of power key drivers to the control input of the block of power IGBT keys; a third temperature sensor of power switches radiators is connected to the first input of the third microcontroller with built-in analog-to-digital converter and data bus adapter, to the second - through the sixth voltage sensor, the output of the fifth filter, to the third - through the fifth voltage sensor the output of the fourth current sensor, to the fourth - information the output of the fourth current sensor, the output of the third microcontroller with built-in analog-to-digital converter and an information bus adapter through the second block of power drivers Luch is connected to the control input of the second inverter; a fourth temperature sensor of power switches radiators is connected to the third input of the fourth microcontroller with integrated analog-to-digital converter and data bus adapter; a fifth temperature sensor of power switches radiators is connected to the first input of the fifth microcontroller with built-in analog-to-digital converter and data bus adapter, to the second - the information output of the fifth current sensor, to the third - through the ninth voltage sensor, the output of the fifth current sensor.

The data exchange bus can be performed on the basis of the RS-485, CAN, MIL-STD1553B, Ethernet interfaces.

The essence of the invention lies in the fact that in the proposed charge-discharge complex with an effective so-called “twelve-pulse rectification circuit”, the use of high-voltage alternating current networks with a frequency of 50 Hz and a voltage of 6 or 10 kV is implemented for power supply with reversible regulated direct current of ship batteries, and it is also possible to return chemical energy (in the discharge mode of the battery) accumulated in the battery to the high-voltage AC network a, which provides the maximum possible savings in electricity consumed during multiple charge-discharge cycles of high-capacity batteries.

According to the drawing, the charge-discharge coastal complex for ship batteries with power from a high-voltage network includes a computer 1, first 2, second 3, third 38, fourth 41, fifth 52, sixth 55, seventh 72, eighth 74 and ninth 77 voltage sensor, remote local monitoring and control 4, first 5, second 9, third 23, fourth 26 and fifth 35 relay device, pump control unit 6, liquid cooling pump 7, sound alarm unit 8, AC network 3 ~ 50 Hz, voltage 6 kV 10 and 10 kV 18, mains switch 6/10 kV 11, the first 12, second 16, third 28 and fourth 49 circuit breaker, a triangle / star switch of the primary winding of the high voltage transformer 13, the primary winding of the high voltage transformer 14, the first secondary winding of the high voltage transformer connected to star 15, the first 17, second 29 and third 56 inductor , load device 19, load switch 20, first 21, second 45, third 48, fourth 61, fifth 66 and sixth 70 filter, remote light signaling panel 22, fan control circuit 24, fan unit ditch 25, the second secondary winding of the high-voltage transformer connected in triangle 27, an external control system 33, data exchange bus 34, first 36, second 42, third 43, fourth 68 and fifth 75 temperature sensor radiators power keys, the first 37, the second 40, third 53, fourth 73 and fifth 76 microcontroller with built-in analog-to-digital converter and data bus adapter, first 39, second 54 and third 67 power key driver block, first 44, second 58, third 62 and fourth 64 rectifier, first 46, second 50, third 57, Werth 64 and fifth 71 current sensor unit power IGBT-key 47, the DC link voltage of 175 ... 320 V to the battery 51, the transformer 59, the first 60 and second 65 inverter, AC network 3 ~ 50 Hz 380 volt 63.

AC ~ 3 ~ 50 Hz, voltage 380 V 63, third rectifier 62, fourth filter 61, first inverter 60, transformer 59, second rectifier 58, third current sensor 57, third inductor 56, second filter 45, first current sensor 46, block IGVT power keys 47, a third filter 48, a fourth circuit breaker 49, a second current sensor 50 and a direct current voltage of 175 ... 320 V with a battery 51 are connected in series.

The first output of the computer 1 is connected through the fan control circuit 24 to the input of the fan unit 25, the second to the input of the remote light signal panel 22, the third through the first relay device 5 to the control input of the first circuit breaker 12, and the fourth through the pump control unit 6 to the pump liquid cooling systems 7, the fifth to the sound alarm unit 8, the sixth through the second relay device 9 to the control input of the second circuit breaker 16, the seventh through the third relay device 23 to the control to the load switch input 20, the eighth through the fourth relay device 26 to the control input of the third circuit breaker 28, the ninth through the fifth relay device 35 to the control input of the fourth circuit breaker 49; the output of the AC network 3 ~ 50 Hz with a voltage of 10 kV 18 is connected to the first input of the computer 1 through the first voltage sensor 2, the output of the AC 3 ~ 50 Hz voltage of 6 kV 10 through the second voltage sensor 3, the information output to the third the first circuit breaker 12, to the fourth - the information output of the second circuit breaker 16, to the fifth - the information output of the load switch 20, to the sixth - the information output of the third circuit breaker 28, to the seventh - the information output of the fourth circuit atical switch 49; the first input-output of the computer 1 is connected to the input-output of the local control and control panel 4, the second to the second input-output of the information exchange bus 34; the input-output of the external control system 33 is connected to the first input-output of the data exchange bus 34, and the fourth-microcontroller input-output with integrated analog-to-digital converter and information bus adapter 73 is connected to the third; to the fourth - the input-output of the fifth microcontroller with integrated analog-to-digital converter and an information bus adapter 76, to the fifth - the input-output of the third microcontroller with built-in analog-to-digital converter and an information bus adapter 53, to the sixth - the input-output of the first microcontroller analog-to-digital Converter and adapter information bus 37, to the seventh - the input-output of the second microcontroller with built-in analog-to-digital converter and adapter information bus 40.

The input / output of an AC network of 3-50 Hz with a voltage of 6 kV 10 is connected to the first input-output of a 6/10 kV 11 network switch, the second input and output of an AC network of 3 ~ 50 Hz with a voltage of 10 kV 18 is connected; a 6/10 kV network switch 11, a first circuit breaker 12, a delta / star switch of the primary winding of the high voltage transformer 13, and a primary winding of the high voltage transformer 14 are connected in series; the first output of the primary winding of the high voltage transformer 14 through the first secondary winding of the high voltage transformer 15 connected in series, the second circuit breaker 16 and the first inductor 17 are connected to the input of the first rectifier 44, the second through the second secondary winding of the high voltage transformer 27 connected in series, the third circuit breaker 28 and the second the inductor 29 is connected to the input of the fourth rectifier 69; to the input of the primary winding of the high voltage transformer 14 through the first secondary winding of the high voltage transformer 15, the load switch 20, the first filter 21, the fourth current sensor 64, the second inverter 65 and the fifth filter 66, the output of the IGVT power switch unit 47 is connected; the second output of the load switch 20 is connected to the input of the load device 19; the second output of the third inductor 56 through the sixth filter 70 and the fifth current sensor 71 connected in series is connected to the second input of the block of power IGBT keys 47; the output of the first rectifier 44 is connected to the input of the second filter 45; the output of the fourth rectifier 69 is connected to the input of the sixth filter 70.

A first temperature sensor of power switches radiators 36 is connected to the first input of the first microcontroller with built-in analog-to-digital converter and information bus adapter 37, to the second - through the third voltage sensor 38 - the output of the first current sensor 46, to the third - the information output of the first current sensor 46; a second temperature sensor of power switches radiators 42 is connected to the first input of the second microcontroller with built-in analog-to-digital converter and information bus adapter 40, to the second through the fourth voltage sensor 41 the output of the second current sensor 50, to the third - the information output of the second current sensor 50, output a second microcontroller with integrated analog-to-digital converter and an information bus adapter 40 is connected to the control input of the power block IGVT-key through the first block of drivers of power keys 39 47 th; a third temperature sensor of power switches radiators 43 is connected to the first input of the third microcontroller with integrated analog-to-digital converter and information bus adapter 53, the fifth filter 66 is connected to the second through the sixth voltage sensor 55, and the fourth current sensor is connected to the third through the fifth voltage sensor 52 64, to the fourth - the information output of the fourth current sensor 64, the output of the third microcontroller with built-in analog-to-digital converter and the information bus adapter 53 through the second drive unit the ditch of the power keys 54 is connected to the control input of the second inverter 65; the information output of the third current sensor 57 is connected to the first input of the fourth microcontroller with built-in analog-to-digital converter and data bus adapter 73, to the second through the seventh voltage sensor 72 is the output of the third current sensor 57, to the third is the fourth temperature sensor of the power switches radiators 68, to the fourth - through the eighth voltage sensor 74, the output of the AC network 3 ~ 50 Hz with a voltage of 380 V 63, the output of the fourth microcontroller with built-in analog-to-digital converter and an information adapter hydrochloric bus 73 through the third power key driver unit 67 is connected to the control input of the first inverter 60; a fifth temperature sensor of power switches radiators 75 is connected to the first input of the fifth microcontroller with built-in analog-to-digital converter and information bus adapter 76, to the second - the information output of the fifth current sensor 71, to the third - through the ninth voltage sensor 77, the output of the fifth current sensor 71.

The proposed charge-discharge complex works as follows. First, computer 1, first 37, second 40, third 53, fourth 73 and fifth 76 are turned on and the microcontroller is checked for voltage in high-voltage networks 10, 18 (computer 1 polls the first 2 and second 3 voltage sensors), the required initial state of the switching equipment is charging discharge complex: the first 12, second 16, third 28 and fourth 49 circuit breakers must be turned off, the load switch 20 must be connected to the load device 19 (computer 1 polls inputs 3, 4, 5, 6 and 7), the presence of voltage in the network ac 3 ~ 50 Hz, 380 V 63 (the fourth microcontroller 73 detects the presence of voltage using the eighth voltage sensor 74 and transmits control information via the data exchange bus 34 to the computer 1) and the voltage value in the DC network with a voltage of 175 ... 320 V with a battery 51 ( the second microcontroller 40 determines using the fourth voltage sensor 41 the voltage value and transmits the control information via the information exchange bus 34 to the computer 1).

If there is a voltage of nominal value (342 ... 418 V) in the AC mains 3 ~ 50 Hz, 380 V 63, the fourth microcontroller 73, using the third block of power switch drivers 67, starts controlling the first inverter 60, controlling the output voltage and current of the AC voltage conversion channel current to DC voltage (third rectifier 62, fourth filter 61, first inverter 60, transformer 59 and second rectifier 58) using the seventh voltage sensor 72 and the third current sensor 57. The DC voltage generated by this it channel conversion, gradually increases and through the third inductor 56 is fed to the second 45 and fifth 70 filter, providing a smooth charge of the capacitors that make up these filters. Then, the computer 1, using the fifth relay amplifier, turns on the fourth circuit breaker 49, and the second microcontroller 40, using the first block of power key drivers 39, starts controlling the block of power IGVT keys 47, controlling the voltage and charging current of the battery through a direct current network of 175 ... 320 At 51, using a fourth voltage sensor 41 and a second current sensor 50.

To switch to the main mode of operation (battery charge from a high-voltage network), a high-voltage supply network is selected, from which the charge-discharge complex will receive power. When using an AC network with a frequency of 50 Hz and a voltage of 6 kV 10, the primary winding of the high-voltage transformer in the switch 13 is switched to the "triangle" connection circuit, and the 6/10 kV 11 network switch is set to work from its first input-output. When using an AC network with a frequency of 50 Hz and a voltage of 10 kV 18, the primary winding of the high-voltage transformer in the switch 13 is switched to the star circuit, and the 6/10 kV 11 network switch is set to work from its second input-output.

Next, the computer 1 using the first relay amplifier 5 turns on the first circuit breaker 12, while the high-voltage supply voltage is supplied to the primary winding of the high-voltage transformer 14. Then, the computer 1, using the second 9 and fourth 26 relay amplifiers, turns on the second 16 and third 28 circuit breakers, this low voltage from the output of the first 15 secondary winding of the high voltage transformer connected to the "star", and from the output of the second 27 secondary winding of the high voltage transformer connected to the "tr hegon ”, through the first 17 and second 28, the inductor enters the first 44 and fourth 69 rectifiers, respectively.

A high-voltage transformer with a primary winding 14 and with two secondary windings connected to a “star” 15 and a “triangle” 27, a first 44 and a fourth 69 rectifier, respectively through a second 45 and a fifth 70 filter, are combined using a block of power IGVT switches 47 for work on the total load (battery) forming, the so-called in the technical literature, "twelve-pulse rectification circuit." The “twelve-pulse rectification circuit” is characterized by the fact that it has a higher efficiency and a significantly lower ripple level (approximately 5 times) of the output voltage compared to the traditional bridge three-phase rectification circuit (also called the “six-pulse rectification circuit” in the technical literature). The process of charging the battery from the high-voltage network 10 or 18 is controlled by the second microcontroller 40 similarly to the control from the AC network 3 ~ 50 Hz, 380 V 63 (control processes differ only in the intervals provided for the values of the charge currents). Simultaneously with the beginning of the process of charging the battery from the high-voltage network, the fourth microcontroller 73 blocks the operation of the first inverter 60 of the channel for converting AC voltage to DC voltage from the AC network 3 ~ 50 Hz, 380 V 63 and transmits via the data exchange bus 34 to computer 1 a message about the possibility of disconnecting the power supply of the charge-discharge complex from this network. After that, in the main operating mode, the charge-discharge complex can receive power only from the high-voltage network.

The use of a charge-discharge complex for power supply in addition to a high-voltage network of 10 or 18, an AC network of 3 ~ 50 Hz, 380 V 63 is due to the following two main reasons:

- the need to pre-charge high-capacity capacitors that are part of the second 45 and fifth 70 filters to prevent inrush current in the first 44 and second 69 rectifiers when charging these capacitors (having almost zero resistance at the initial time) and providing a significant reduction in pulse-switching overvoltages in the initial period of operation of a powerful "twelve-pulse rectification circuit" of a charge-discharge complex from a high-voltage network of 10 or 18;

- providing the possibility of recharging with small currents to reduce the sulfation of the plates and the compensation of self-discharge processes of high-capacity batteries in storage mode.

After charging the battery to the required capacity, the charge-discharge complex switches to discharge mode. Computer 1 using the second 9 and fourth 26 relay amplifier turns off the second 16 and third 28 circuit breaker, and then using the first relay amplifier 5 turns off the first circuit breaker 12, disconnecting the high-voltage network from the charge-discharge complex. Next, the computer 1 gives the command to the second 40 and third 53 microcontroller to start working in the discharge mode of the battery. The second microcontroller 40, through the first block of power key drivers 39, starts controlling the block of power IGVT keys 47, controlling the voltage and discharge current of the battery using the fourth voltage sensor 41 and the second current sensor 50. In turn, the third microcontroller 53 through the second block of power drivers of keys 54 starts controlling the second inverter 65, controlling the voltage and current at its output using the fifth voltage sensor 52 and the fourth current sensor 64. Using the bus information exchange 34 consumers high voltage network, coordinate their actions, as a result of providing the required parameters of the process of discharging the battery to the load device 19.

When the voltage is disconnected in one of the high-voltage networks 10 or 18, it is possible to switch to the discharge mode of the battery using the released energy to power consumers of the high-voltage network who are left without a supply voltage (energy recovery mode). To enter the energy recovery mode, computer 1 polls inputs 4 and 6, checks that the second 16 and third 28 circuit breakers are turned off, using the first 5 and fifth 35 relay amplifiers, turns on the first 12 and fourth 49 circuit breakers, and using the third relay the amplifier 23 disconnects the load switch 20 from the load device 19 and connects it to the second input of the first secondary winding of the high voltage transformer 15. Thus, the energy recovery of the battery will It can be carried out according to the circuit: a direct current network with a voltage of 175 ... 320 V 51 - a second current sensor 50 - a fourth circuit breaker 49 - a third filter 48 - a block of power IGVT switches 47 - a fifth filter 66 - a second inverter 65 - a fourth current sensor 64 - the first filter 21 - load switch 20 - first secondary winding of the high voltage transformer 15 - primary winding of the high voltage transformer 14 - triangle / star switch of the primary winding of the high voltage transformer 13 - first circuit breaker 12 - 6/10 kV mains switch 11 - consumers of a high voltage network. The control of the energy recovery process of the battery for consumers of the high-voltage network is carried out by the second 40 and third 53 microcontrollers similarly to controlling the process of discharging the battery to the load device 19.

To control the temperature conditions of the power switches of the first 44 and fourth 78 rectifiers, the power IGVT switch unit 47, the first 60 and second 65 inverters, the first 36, fifth 75, second 42, fourth 68 and third 43 temperature sensors, respectively, are installed power keys. The first 37, second 40, third 53, fourth 73 and fifth 76 microcontrollers, interrogating the first 36, second 42, third 43, fourth 68 and fifth 75, respectively, the temperature sensor of the power key radiators transmit control information via the data exchange bus 34 to computer 1, which using the fan control circuit 24 ensures the inclusion of the required number of fans in the fan unit 25. To increase the efficiency of the fan unit 25 in the charge-discharge complex, a liquid air cooling system is provided , also commissioned by computer 1 (pump control unit 6 and liquid cooling pump 7). If even when the fan unit 25 and the liquid air cooling system are operating at full power, the temperature of the radiator, for example, the power switches of the first rectifier 44, continues to approach an unacceptable value, the computer 1 instructs the second microcontroller 40 to reduce it using the power IGBT-key block 47 battery charge current.

As part of the charge-discharge complex, to attract the attention of service personnel, an audio alarm unit 8 and a remote light signaling panel 22 are provided, and for realizing the possibility of operational control of the charge-discharge complex (without using computer terminal devices 1), a local control and control panel 4 .

To enable remote monitoring and control, an external control system 33 is connected to the charge-discharge complex.

Industrial applicability of the invention is determined by the fact that the proposed charge-discharge complex can be manufactured in accordance with the above description and drawing on the basis of well-known components and technological equipment and used for automatic charge-discharge of storage batteries at various facilities.

The proposed technical solutions have been practically implemented by IRIS CJSC in a pilot delivery model, which is structurally arranged in a 40-foot sea container called “Mobile Charging and Discharging Complex” (supplied by KIAR) for convenience of moving to the place of operation (intended use). 435511.001 TU) and designed for automatic optimal charge-discharge of large-capacity ship batteries from high-voltage networks of 6 or 10 kV AC with a frequency of 50 Hz.

Thus, the proposed charge-discharge complex has a very wide functionality, providing power to large-capacity ship batteries with reversible regulated direct current during molding charge-discharge cycles from a high-voltage alternating current network with a frequency of 50 Hz, voltage of 6 or 10 kV. When a battery is discharged, it is possible to save electricity in a high-voltage alternating current network (using electricity to power the consumers of this network) in the recovery mode of chemical energy accumulated in the battery, instead of its irrevocable loss of heat dissipation in the load device. In addition, with power supply only from an AC network of 3 ~ 50 Hz, 380 V, the charge-discharge complex can be used to recharge high-capacity batteries with small currents in storage mode.

Based on the foregoing and the results of our patent information search, we believe that the proposed charge-discharge coastal complex for ship batteries with power supply from a high-voltage network meets the criteria of “Novelty”, “Inventive step” and can be protected by a patent of the Russian Federation for an invention.

Applicant: Closed Joint-Stock Company “Intelligent Robust Integrated Systems (IRIS)”.

Claims (5)

1. The charge-discharge coastal complex for ship batteries with power supply from a high-voltage network, consisting of 380 V AC 3-50 Hz connected in series, a third rectifier, a fourth filter, a first inverter, a transformer, a second rectifier, a third current sensor and DC networks with a voltage of 175 ... 320 V with a battery; the fourth microcontroller with built-in analog-to-digital converter and an information bus adapter, to the first input of which the information output of the third current sensor is connected, to the second through the seventh voltage sensor - the output of the third current sensor, to the fourth through the eighth voltage sensor - the output of the AC voltage network 3 ~ 50 Hz with a voltage of 380 V, the output of the fourth microcontroller with integrated analog-to-digital converter and an information bus adapter through the third block of power switch drivers chen to the control input of the first inverter; information exchange bus, to the first input-output of which an input-output of an external control system is connected, to the third - input-output of the fourth microcontroller with built-in analog-to-digital converter and an information bus adapter; the first and second blocks of drivers of power switches, the second and third filters and the first current sensor, characterized in that a computer is inserted into it, the first, second, third, fourth, fifth, sixth and ninth voltage sensors, a local control and monitoring panel, first, second, third, fourth and fifth relay devices, pump control unit, liquid cooling pump, sound alarm unit, 3 ~ 50 Hz AC network with voltage of 6 and 10 kV, 6/10 kV network switch, first, second, third and fourth automatic shutdown bodies, delta / star switch of the primary winding of the high voltage transformer, primary winding of the high voltage transformer, first secondary winding of the high voltage transformer connected to a star, first, second and third inductors, load device, load switch, first, fifth and sixth filters, remote light signaling panel , fan control circuit, fan block, second secondary winding of a high voltage transformer connected in a triangle, first, second, third, h tverty and fifth temperature sensors power switches radiators, the first, second, third and fifth microcontroller with integrated analog-digital converter and a data bus adapter, the first and fourth rectifiers unit power IGBT keys, second, fourth and fifth current sensor, a second inverter;
the first computer output is connected through the fan control circuit to the input of the fan unit, the second to the input of the remote light alarm panel, the third through the first relay device to the control input of the first circuit breaker, the fourth through the pump control unit to the liquid cooling pump, and the fifth to a sound alarm unit, the sixth through the second relay device to the control input of the second circuit breaker, the seventh through the third relay device to the control input ne load switch, the eighth through the fourth relay device to the control input of the third circuit breaker, the ninth through the fifth relay device to the control input of the fourth circuit breaker; the output of the AC network 3 ~ 50 Hz with a voltage of 10 kV is connected to the first input of the computer through the first voltage sensor, to the second through the second voltage sensor - the output of the AC 3 ~ 50 Hz 6 kV voltage, to the third - the information output of the first circuit breaker, the fourth is the information output of the second circuit breaker, the fifth is the information output of the load switch, the sixth is the information output of the third circuit breaker, and the seventh is the information output of the fourth circuit breakers; the first input-output of the computer is connected to the input-output of the local monitoring and control panel, the second - to the second input-output of the information exchange bus; the fourth input-output of the data exchange bus is connected to the input-output of the fifth microcontroller with integrated analog-to-digital converter and an information bus adapter, to the fifth - input-output of the third microcontroller with built-in analog-to-digital converter and an information bus adapter, to the sixth - input-output the first microcontroller with built-in analog-to-digital converter and data bus adapter, to the seventh - the input-output of the second microcontroller with built-in analog-to-digital converter data bus adapter and adapter; the input / output of the AC network 3 ~ 50 Hz of 6 kV voltage is connected to the first input-output of the 6/10 kV network switch, the second input and output of the AC network 3 ~ 50 Hz 10 kV; a 6/10 kV network switch, a first circuit breaker, a delta / star switch of a primary winding of a high voltage transformer and a primary winding of a high voltage transformer are connected in series; the first output of the primary winding of the high voltage transformer through the first secondary winding of the high voltage transformer connected in series, the second circuit breaker and the first inductor is connected to the input of the first rectifier, the second through the second secondary winding of the high voltage transformer connected in series, the third circuit breaker and the second inductor is connected to the input of the fourth rectifier; to the input of the primary winding of the high-voltage transformer through the first secondary winding of the high-voltage transformer connected in series, a load switch, a first filter, a fourth current sensor, a second inverter and a fifth filter, the output of the power IGVT switch unit is connected; the second output of the load switch is connected to the input of the load device; the gap between the third current sensor and the DC network with a voltage of 175 ... 320 V includes a third choke, a second filter, a first current sensor, a block of power IGVT switches, a third filter, a fourth circuit breaker and a second current sensor connected in series; the second output of the third choke through a sixth filter and a fifth current sensor connected in series is connected to the second input of the block of power IGBT keys;
the output of the first rectifier is connected to the input of the second filter; the output of the fourth rectifier is connected to the input of the sixth filter; the first temperature sensor of power switches radiators is connected to the first input of the first microcontroller with built-in analog-to-digital converter and data bus adapter, to the second through the third voltage sensor - the output of the first current sensor, to the third - the information output of the first current sensor; a second temperature sensor of power switches radiators is connected to the first input of the second microcontroller with built-in analog-to-digital converter and data bus adapter, to the second through the fourth voltage sensor is the output of the second current sensor, to the third is the information output of the second current sensor, the output of the second microcontroller with built-in analog - a digital converter and an information bus adapter are connected through the first block of power key drivers to the control input of the block of power IGBT keys; a third temperature sensor of power switches radiators is connected to the first input of the third microcontroller with built-in analog-to-digital converter and data bus adapter, to the second through the sixth voltage sensor - the output of the fifth filter, to the third through the fifth voltage sensor - the output of the fourth current sensor, to the fourth - information the output of the fourth current sensor, the output of the third microcontroller with built-in analog-to-digital converter and an information bus adapter through the second block of power drivers Luch is connected to the control input of the second inverter; a fourth temperature sensor of power switches radiators is connected to the third input of the fourth microcontroller with integrated analog-to-digital converter and data bus adapter; a fifth temperature sensor of power switches radiators is connected to the first input of the fifth microcontroller with built-in analog-to-digital converter and data bus adapter, to the second - the information output of the fifth current sensor, to the third through the ninth voltage sensor - the output of the fifth current sensor. 2. The charge-discharge coastal complex for ship batteries with power from the high-voltage network according to claim 1, characterized in that the data exchange bus is based on the RS-485 interface. 3. The charge-discharge coastal complex for ship batteries with power from the high-voltage network according to claim 1, characterized in that the data exchange bus is based on the CAN interface. 4. The charge-discharge coastal complex for ship batteries with power from the high-voltage network according to claim 1, characterized in that the data exchange bus is based on the MIL-STD 1553 V interface. 5. The charge-discharge coastal complex for ship batteries with power from the high-voltage network according to claim 1, characterized in that the data exchange bus is based on the Ethernet interface.

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