RU170071U1 - BLOCK AND COMPLETE ELECTRICAL SUPPLY DEVICE - Google Patents

Abstract

The utility model relates to the electric power industry, namely to electrical devices of uninterrupted power supply of full factory readiness to provide consumers with electricity mainly along the main gas pipelines (MG) from the main or backup power sources in hard-to-reach places. The technical result is the expansion of the arsenal of block-complete power supply devices. Block-complete power supply device (BKES), which is a single unit containing an insulated container block, the inner space of which is divided into compartments equipped with separate entrances; the main and backup sources of power supply, while in one compartment the main source of power supply, made in the form of a complete transformer substation, and in the second compartment there is a backup source of power supply, made in the form of a diesel generator, while the BEC also contains a switching device, the input of which voltage is supplied from the main and backup power sources. KTP includes a high-voltage transformer and an I / O with a cable high-voltage input. In the additional compartment, the following are installed: RUNN connected via cable jumpers to the KTP power transformer, as well as a guaranteed power supply device with a battery (AB). A three-phase diesel generator (DG) is part of a backup power supply device, which also includes a multiphase converter (MP), made on the basis of a transformer with a rotating magnetic field (TVP) and a multiphase rectifier (MV). BKES as a main power source additionally contains a photovoltaic system containing solar modules and a DC / DC converter SM to DC voltage having an output to the busbar to charge the battery and power linear consumers, and / or a wind power plant with a wind unit and an alternating voltage converter of a wind turbine wind turbine in DC voltage, having access to the busbar to charge the battery and power the linear consumers. BKES may contain a compartment in which the equipment for electrochemical protection of the gas pipeline (ECP) or telemechanics is installed, as well as a device for managing the compartment’s own needs (SCHN) .11 zp f-ly, 4 ill.

Description

Application area.

The utility model relates to the electric power industry, namely to electrical devices of uninterrupted power supply of full factory readiness to provide consumers with electricity mainly along the lines of main gas pipelines (MG), such as electrochemical protection systems (ECP), monitoring and control points of MG crane assemblies, telemechanics and communication systems (ТМ and С), as well as other linear consumers from the main or reserve power sources in hard-to-reach places.

The level of technology.

Known block-complete power supply device (BKES) according to the patent for utility model No. 68800, option 2 [1], which contains an insulated block container, the inner space of which is divided by partitions into compartments equipped with separate entrances; the main and reserve sources of power supply (IE), while in the first compartment there is the main source of power supply, made in the form of a complete transformer substation, and in the second compartment there is a backup source of power supply, made in the form of a diesel generator. According to a utility model, the interior space of a block container can be divided by partitions into three or four compartments. The third compartment contains N cathodic protection stations, or M automation devices for gas transmission equipment, or Q devices for power supply of automation equipment, telemechanics and communications. The fourth compartment is for repair. Moreover, the BKES also contains a switching device, the input of which is supplied with voltage from the main and backup power sources, and which is configured to supply voltage from the main or backup power source to its output, depending on the presence and quality of the voltage of the main power source. The technical problem to which the utility model is aimed is to reduce labor costs in the installation and commissioning of the installation site, the material consumption of devices that provide uninterrupted power supply to consumers.

Known power supply container block according to the utility model patent No. 87298 [2], containing the main and backup power sources made in the form of microturbine installations, a container whose inner space is divided by a partition into two compartments equipped with separate entrances, while the first compartment is installed main source of electricity. It is equipped with an additional container, the inner space of which is divided by a partition into two compartments equipped with separate entrances, while the first compartment has a backup power source, an auxiliary cabinet, a battery cabinet, entrance shutters with a drive, electric heating panels and exhaust fans, and in the second - low-voltage compartment - a control cabinet with cable entries for automation and power supply for own needs is installed, and in the first compartment of the main container it is additionally installed there is an auxiliary cabinet, a battery cabinet, input blinds with a drive, electric heating panels and exhaust fans, and in the second high-voltage compartment of the main container there is a high-voltage transformer, a panel of high-voltage equipment and a cable high-voltage input. The technical problem to which the claimed utility model is directed is to increase the power and reliability of the power supply source, comfort and ease of maintenance of the uninterruptible power supply unit.

A complex block-complete device is known for the control and management point of the crane unit of the main gas pipeline according to the utility model patent No. 155194 [3]. The utility model relates to a control unit for control unit of a crane unit MG with autonomous and backup power supply systems for linear consumers, and is aimed at reducing capital costs for the construction of the linear part of the MG due to the lack of communication with external power supply networks, reducing the cost of gas transportation through the MG due to the lack of electricity consumption from external network, improving the reliability of power supply of the MG MG. The specified technical result is achieved in the integrated block-complete device of the control and management point of the crane unit of the main gas pipeline (BKU PKU), which is a single unit, in the compartments are located:

gas injection and gas preparation system for the main gas pipeline for use in the main source of autonomous power supply,

main source of autonomous power supply,

backup power supply device,

high-voltage compartment with a step-up transformer cell and high-voltage cells for outgoing overhead (VL) or cable lines (CL), high-voltage terminal devices for overhead power supply for electrochemical protection devices (ECP), powered by overhead lines or KL, located along the main gas pipeline and adjacent to the crane unit, electrotechnical equipment for monitoring and managing consumers of the crane unit, as well as telemetry and communication equipment.

Known mobile transformer complete substation 35 kV according to the patent for utility model No. 145918 [4], the technical result of which is the ease of maintenance and placement, improving the reliability of power supply. In a mobile transformer packaged substation containing a power transformer, a packaged high-voltage device and a packaged low-voltage device installed in a closed unit container, connected via cable jumpers to a power transformer connected to the high-voltage line through a packaged high-voltage device, equipped with an input disconnector for supplying voltage transformer, high voltage switchgear and power transformer are also installed in closed block containers, and the block containers are insulated, while the block container with a complete high-voltage switchgear consists of two compartments, one of which houses high-voltage equipment, namely a high-voltage switch equipped with an electric drive and connected to the overhead line through bushing insulators and a disconnector, current measuring transformers, voltage measuring transformers installed outside this block container connected to the high-voltage switch, and emergency control devices based on microprocessor terminals, control devices for the auxiliary needs of the block container and a guaranteed power supply device with batteries are installed in the control compartment, and the block container with a complete low-voltage switchgear is a combination of high-voltage electric cabinets electrically interconnected, having switching devices, measuring transformers current and voltage torches, auxiliary transformer, microprocessor protection terminals, equipped with manholes in the wall with hermetic stuffing glands for connecting external cable connections in the wall of the block container and divided by a partition into two compartments, one of which has a substation control panel, and the other low voltage switchgear.

Known BKES [1] on the set of essential features adopted as the closest analogue.

 The problem the utility model aims to solve is to create a block-complete device for power supply to linear consumers on the main factory readiness pipelines with improved technical and economic indicators, ensuring uninterrupted power supply to linear consumers on the main gas pipelines in conditions of low reliability of external power supply (long-distance power lines )

The technical result of the claimed utility model is the expansion of the arsenal of block-complete power supply devices, namely, the creation of a power supply system providing uninterrupted power supply to linear consumers on gas pipelines in conditions of low reliability of external power supply.

The essence of the utility model.

The technical result is achieved by the fact that a block-complete power supply device (BKES), which is a single unit containing an insulated block container, the inner space of which is divided into compartments equipped with separate entrances; the main and backup sources of power supply, while in one compartment the main source of power supply, made in the form of a complete transformer substation, and in the second compartment there is a backup source of power supply, made in the form of a diesel generator, while the BEC also contains a switching device, the input of which voltage is supplied from the main and backup power sources,

according to the utility model

a complete transformer substation (KTP) includes a high voltage transformer and a high voltage input device (IHV) with a cable high voltage input,

in an additional compartment, a low-voltage switchgear (LVRF) is installed, connected via cable jumpers to the KTP power transformer, as well as a guaranteed power supply device with a battery (AB).

In this case, a three-phase diesel generator (DG) backup power source is included in the backup power supply device, which also includes a multiphase converter (MP), made on the basis of a transformer with a rotating magnetic field (TVP) and a multiphase rectifier (MV);

wherein the output of the switching device is connected to the input of the multiphase converter of the backup power supply device;

in this case, the multiphase converter at the input can be connected to the alternating current network of the main power supply source through the first input of the switching device or to the backup DG source through the second input of the switching device, and with its output the multiphase converter is connected to the bus section to charge the battery and supply linear consumers.

At the same time, the BECS, as the main power source, additionally contains a photovoltaic system containing solar modules and a DC / DC converter SM to DC voltage, which has an output to the busbar to charge the battery and supply linear consumers.

In this case, the solar modules are placed outside the block container, on its roof.

In this case, the solar modules are made in the form of a roof covering the block container.

At the same time, the BKES, as the main power source, additionally contains a wind power installation with a wind generator and an alternating voltage converter of a wind turbine of a wind turbine into a constant voltage, which has an output to the busbar to charge the battery and supply linear consumers.

In this case, the wind turbine is placed outside the block container on the mast.

In this case, the DC-DC converter SM to DC can be located both in its own compartment BKES, and in the compartment for placement RUNN, MP and AB.

In this case, the AC voltage converter of the wind turbine wind turbine to DC voltage can be located both in its own compartment BKES and in the compartment for placement of RUNN, MP and AB.

In this case, the BKES may contain a compartment in which the equipment for electrochemical protection of the gas pipeline (ECP) or telemechanics is installed, as well as a device for controlling the compartment’s own needs (SCHN).

At the same time, each compartment of the BKES is equipped with a device for managing its own needs (shield of its own needs SHCHSN), as well as systems for working, emergency and repair lighting, heating and ventilation, security and fire alarms, and gas fire fighting; a set of cables for connecting the compartments.

At the same time, the walls and the roof of the insulated block container of the BKES are made using sandwich panels as independent enclosing structures, with metal cladding and an insulating layer with enhanced thermal characteristics, and strips were used to seal the joints of building elements.

In this case, the compartments of the BKES block-container can be made in the form of interconnected modules, and for the sealing of the joints of the roof, walls and base of the modules, strips are used.

The list of figures illustrating the claimed utility model.

FIG. 1 - general view of the BKES.

FIG. 2 is a view A in FIG. 1.

FIG. 3 - BKES in the context of AA in figure 1.

FIG. 4 is a structural electrical diagram of the connections BKES.

 The list of items in the drawings.

1 - block container BKES;

2 - the main source of electricity;

3 - backup power source;

4 - compartment of the main power supply 2;

5 - compartment for placement of RUNN, MP and AB;

6 - compartment backup power supply 3;

7 - entrance to compartment 4;

8 - entrance to compartment 5;

9 - entrance to compartment 6;

10 - power transformer;

11 - high voltage device (IOC);

12 - switchgear low voltage (RUNN);

13 - high voltage cable entry;

14 - device for managing their own needs of compartment 5 (ЩСН);

15 - rechargeable batteries (AB);

16 - fuel system DG 3;

17 - switching device;

18 - the output of the switching device;

19 - an exhaust pipe;

20 - a device for managing their own needs of compartment 6 (ЩСН);

21 - cabinet fire alarm (ShPS);

22 - multiphase converter;

23 - the first input of the switching device 17;

24 - the second input of the switching device 17;

25 - output of the multiphase converter 22;

26 - busbar power supply linear consumers MG;

27 - backup power supply device;

28 - compartment ECP or TM;

29 - entrance to compartment 28;

30 - ECP equipment;

31 - equipment TM;

32 - ShchSN compartment 28;

33 - electric blinds;

34 - ventilation blinds;

35 - solar module (SM);

36 - CM DC-DC converter;

37 - wind power installation (wind turbine);

38 - AC voltage converter of a wind turbine wind turbine to a constant voltage;

39 - transformer with a rotating magnetic field (TVP);

40 - multiphase rectifier (MV);

41 - the output of the Converter 36 direct voltage CM to a constant voltage;

42 - output to the converter 38 of an alternating voltage of a wind turbine in a constant voltage;

43 - Converter DC to DC;

44 - Converter DC to AC.

Disclosure of a utility model.

Block-complete device power supply (BKES) (figure 1, 2) is a single unit consisting of a warmed block container 1, in which the main 2 and backup 3 power sources are installed (figure 3).

The walls and the roof of the insulated block container are made using sandwich panels as independent enclosing structures, with metal cladding and an insulating layer with enhanced thermal characteristics, and strips were used to seal the joints of building elements.

If necessary, the compartments can be made in the form of interconnected modules of the block container.

The internal space of the BKES is divided into compartments 4, 5, 6, equipped with separate entrances 7, 8, 9. In compartment 4, the main source of power supply is installed - a complete transformer substation (KTP) 2, which includes a high-voltage transformer 10, a high-voltage device (UVN) 11 with a high voltage cable entry 43 (FIGS. 3, 4).

The main source of power supply (IE) 2 is a complete transformer substation KTP with a capacity of 10 to 250 kVA, designed to convert three-phase alternating current electricity with a frequency of 50 Hz and a voltage of 6 (10) kV to a voltage of 0.4 kV and distributing it among consumers. As the main power source can be used KTP production of JSC "Electroshield" (Chekhov, Moscow region) or KTP with similar characteristics of other manufacturers.

The high voltage line (VL) is connected to the input of the KTP 2 through the high-voltage cable entry 13 (Figure 4). In compartment 5, a low-voltage switchgear (LVHV) 12 with emergency automation and overload protection devices connected via cable jumpers to the power transformer 10, as well as devices 14 for controlling the compartment’s own needs (SCHN), such as lighting, heating, ventilation, are installed .

A multi-phase converter (MP) 22 and rechargeable batteries (AB) 15 are also installed in compartment 5, which are designed for automatic backup of power supply to consumers in case of failure of the main and backup power sources.

The main power supply may additionally contain a photovoltaic system containing solar modules (SM) 35 and a DC / DC converter 36 SM to DC voltage with output 41 to the busbar 26 for supplying linear consumers (power receivers ЭП = 24 V, ЭП = 48 V and ЭП ~ 220 V (Fig. 4).

The main power source may further comprise a wind power installation (wind turbine) comprising a wind turbine 37 and an alternating voltage converter 38 of the wind turbine wind turbine to a constant voltage, having an output 42 to a busbar 26 for supplying linear consumers.

Solar modules 35 are placed outside the block container 1, for example on the roof of the block container. Solar modules 35 can be made in the form of a roof covering of the block container 1.

Wind turbine 37 is placed outside the block container 1, mainly on the mast.

Converters 36 and 38 can be implemented on the basis of the IES PRO / DOMINATOR MPPT controller (manufacturer of MicroART LLC, see http://s.microart.ru/map).

Converters 36 and 38 can be located both in their own compartments of the BKES, and in compartment 5 to accommodate the RUNN, MP and AB.

BKES contains a backup power supply device 27 and a switching device 17 (Fig. 4). The switching device 17 through the inputs 23, 24 is supplied with voltage from the main 2 and backup 3 power sources, respectively. The output 18 of the switching device 17 is connected to the input of the multiphase converter 22 of the backup power supply device 27.

The switching device 17 is configured to supply voltage 18 from the main 2 or backup 3 power source to its output 18, and also turns on or off the backup power source 3 depending on the presence and quality of the voltage of the main power source.

Multiphase Converter 22 is configured to recharge the battery pack 15 from the main 2 or backup 3 power sources.

The backup power supply device 27 (Fig. 4) consists of a backup power supply 3, with a capacity of 10 to 200 kW, which can be used almost any diesel generator, for example, the production of the Concern Tractor Plants (KTZ), YaMZ and other domestic manufacturers.

Diesel generator 3 is installed in compartment 6 of the backup power source. In the same compartment, a fuel system 16 is installed with a fuel tank and a fuel supply pipe, auxiliary shield (ЩСН) 20 of compartment 6, a fire alarm cabinet (ШПС) 21. An exhaust pipe 19 with a silencer placed on the roof of the unit is provided for removing combustion products container 1.

The backup power supply device 27 also contains a multiphase converter 22, made on the basis of a transformer with a rotating magnetic field (TVP) 39 and a multiphase rectifier (MV) 40, which has high energy performance and provides a high level of electromagnetic compatibility with primary and backup power sources. Multiphase rectifier can be made according to the scheme described in patent No. 46173. A multiphase converter through the first input 23 of the switching device is connected to a three-phase AC network of the main power source and through the second input 24 to a three-phase alternating current generator DG 3 (Fig. 4). By its output 25, the multiphase converter 22 is connected to the bus section 26 to charge the battery 15 and power the linear consumers.

A multiphase converter can reduce the distorting effect of the rectifying load on the three-phase voltage of the main and backup power sources, as well as reduce the value of the ripple coefficient of the rectified voltage.

The use of a backup power supply circuit with a multiphase converter based on a transformer with a rotating magnetic field and a multiphase rectifier allows optimizing the operating modes of the backup diesel generator, and rational use of diesel fuel.

BKES may contain a compartment 28, in which there is installed equipment 30 of electrochemical protection (ECP), communication equipment 31 and telemechanics (TM), as well as a device 32 for managing the compartment’s own needs (ЩСН).

Each compartment of the BKES is equipped with an auxiliary switchboard, as well as systems for working, emergency and repair lighting, heating and ventilation, security and fire alarms, and gas fire extinguishing; a set of cables for connecting the compartments; contains 34 ventilation inlet louvers.

In the premises of the BKES, in which KTP, TM and EKhZ are located, natural air circulation is performed. Fresh air is supplied through the blinds 34 mounted on the doors below and in the longitudinal walls at the top.

In the compartment in which the backup power source is located - DG 3, air intake is carried out through the inlet and outlet thermally insulated ventilation shutters 33 with electric drive. The AT compartment temperature is maintained below 5 ^{° C,} which ensures reliable starting DW in the cold season. In other rooms the temperature is not maintained below -20 ° ^C. The temperature is maintained at BKES via heating control panel (not shown).

Electrical equipment is installed and fixed to the frame structures of the walls and partitions of the compartments in place using embedded parts and interconnected by electric cables.

Work BKES.

KTP 2 is connected to the overhead line through a high-voltage cable entry 13. Voltage is supplied to the primary winding of the power transformer 10 through a high-voltage device 11 with a high-voltage switch to protect the power transformer from short circuits and overload.

The secondary winding of the power transformer 10 is connected to a low voltage switchgear 12 through cable jumpers.

A low voltage switchgear installed in compartment 5 organizes the distribution of electrical energy to consumers.

The backup power supply in the event of a disconnection of the main power source is provided by a diesel generator 3.

The switching device 17 through the inputs 22, 23 is supplied with voltage, respectively, from the main 2 and backup 3 power sources. The switching device 17 supplies the output 18 (which is the input of the multiphase converter 22) the voltage from the main or backup power source, and also turns on or off the backup source 3 depending on the presence and quality of the voltage of the main power source.

From the output 25 of the multiphase converter 22, the voltage is supplied to the busbar 26.

If there is a photovoltaic system and / or wind power installation as the main power source, these sources through their converters 36, 38 supply voltage to the busbar 26 to charge the battery 15 and power the linear consumers through the respective converters 43, 44.

To reserve power supply to consumers of the first category in the absence of power from the main and backup sources, AB 15 is used.

In normal mode, the voltage on the AB 15 is not lower than the setpoint voltage. In this case, linear consumers receive power from the main power supply KTP 2, SM 35 and / or wind turbine 37, and / or AB 15. The backup source DG 3 does not work. BKES enters the backup mode after the voltage drops below the set voltage. The transition of the BECS to the backup mode occurs according to the signal of the multiphase converter 22. In this case, the DG 3 starts up in order to restore the battery capacity and power the linear consumers. In the backup mode, in parallel to the bus section 26, SM 35, VEU 37 and DG operate. After the restoration of the battery capacity by the signal of the multiphase converter 22 DG 3 stops.

The inventive block-complete power supply device allows to provide uninterrupted power supply to linear consumers on gas pipelines in conditions of low reliability of external power supply (along transmission lines).

 Industrial applicability.

The design of the BKES ensures normal operation, safe and convenient operation of the equipment, as well as the possibility of its transportation by road, rail and water transport, as well as moving with the help of hoisting vehicles.

The shape and design of the BKES block-container is determined by the requirements of the PUE, the instructions for the carriage of goods, the requirements of mechanical strength and take into account the operating experience of similar structures.

INFORMATION SOURCES

1. Patent for utility model No. 68800. Block-complete power supply device (BKES), publ. 11/27/2007 - the closest analogue.

2. Patent for utility model No. 87298. Block container of power supply, publ. 09/27/2009.

3. Patent for utility model No. 155194. Integrated block-complete device for the control and management point of the crane unit of the main gas pipeline, publ. 09/27/2015.

4. Patent for utility model No. 145918. Mobile transformer complete substation 35 kV. Publ. 09/27/2014.

Claims (16)

1. Block-complete power supply device, which is a single unit containing an insulated block container, the inner space of which is divided by partitions into compartments equipped with separate entrances; the main and backup sources of power supply, while in one compartment the main source of power supply, made in the form of a complete transformer substation, and in the second compartment there is a backup source of power supply, made in the form of a diesel generator, while the BEC also contains a switching device, the input of which voltage is supplied from the main and backup power sources, characterized in that the complete transformer substation includes a high voltage transformer and a high voltage input device with a cable high voltage input; in an additional compartment there is a low voltage switchgear connected with cable jumpers to the power transformer of the complete transformer substation, as well as a guaranteed power supply device with a battery; wherein the backup power source, a three-phase diesel generator, is included in the backup power supply device, which also includes a multiphase converter made on the basis of a transformer with a rotating magnetic field and a multiphase rectifier; wherein the output of the switching device is connected to the input of the multiphase converter of the backup power supply device; In this case, the multiphase converter at the input can be connected to the AC main power supply through the first input of the switching device or to the backup power source - to a three-phase diesel generator through the second input of the switching device, and its output is connected to the bus section for charging the battery and power supply to linear consumers. 2. The block-complete power supply device according to claim 1, characterized in that the main power source further comprises a photovoltaic system containing solar modules and a DC-DC to DC voltage converter having an output to the busbar to charge the battery and power linear consumers . 3. The block-complete power supply device according to claim 2, characterized in that the solar modules are placed outside the block container on its roof. 4. The block-complete power supply device according to claim 2, characterized in that the solar modules are made in the form of a roof covering a block container. 5. The block-complete power supply device according to claim 2, characterized in that the direct voltage converter of the solar modules to direct voltage can be located both in the own compartment of the block-complete power supply device and in the compartment for accommodating a low voltage switchgear, multiphase rectifier and battery. 6. The block-complete power supply device according to claim 1, characterized in that the main power source further comprises a wind power installation with a wind unit and an alternating voltage converter of the wind unit of the wind power installation into a constant voltage, having an output to the busbar for charging the battery and linear power consumers. 7. Block-complete power supply device according to claim 6, characterized in that the wind turbine is placed outside the block container on the mast. 8. The block-complete power supply device according to claim 6, characterized in that the AC voltage converter of the wind turbine of the wind power installation into a direct voltage can be located both in its own compartment of the block-complete power supply device and in the compartment for accommodating a low-voltage multiphase switchgear converter and battery. 9. The block-complete power supply device according to claim 1, characterized in that it contains a compartment in which electrochemical protection equipment for a gas pipeline or telemechanics is installed, as well as a device for controlling the compartment’s own needs. 10. The block-complete power supply device according to claim 1, characterized in that each compartment of the block-complete power supply device is equipped with a control device for the compartment’s own needs (auxiliary switchboard), as well as systems for working, emergency and repair lighting, heating and ventilation, security and fire alarms and gas extinguishing; a set of cables for connecting the compartments. 11. The block-complete power supply device according to claim 1, characterized in that the walls and the roof of the insulated block container of the block-complete power supply device are made using sandwich panels as independent enclosing structures, with metal cladding and a thermal insulation layer having increased thermal characteristics, and for sealing the joints of building elements used strips. 12. The block-complete power supply device according to claim 1, characterized in that the compartments of the block container of the block-complete power supply device can be made in the form of interconnected modules, and for the sealing of the joints of the roof, walls and base of the modules, strips are used.

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