CN114400656A - Alternating current power supply control system of hybrid concrete pump truck - Google Patents
Alternating current power supply control system of hybrid concrete pump truck Download PDFInfo
- Publication number
- CN114400656A CN114400656A CN202111618542.1A CN202111618542A CN114400656A CN 114400656 A CN114400656 A CN 114400656A CN 202111618542 A CN202111618542 A CN 202111618542A CN 114400656 A CN114400656 A CN 114400656A
- Authority
- CN
- China
- Prior art keywords
- power supply
- voltage
- output
- battery
- pump truck
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 19
- 239000010703 silicon Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 abstract description 6
- 239000002283 diesel fuel Substances 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/162—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
- H02M7/1623—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration with control circuit
- H02M7/1626—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration with control circuit with automatic control of the output voltage or current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
Abstract
The invention discloses an alternating current power supply control system of a hybrid concrete pump truck, which comprises an EMI filter, a silicon controlled rectifier bridge, an output filtering module, an electric control switch and a battery which are connected in sequence; the power supply device also comprises a first voltage detection module and a second voltage detection module which are used for respectively detecting the output voltage of the output filtering module and the battery voltage and transmitting the output voltage and the battery voltage to the main control unit, and the main control unit is connected with and controls the silicon controlled rectifier bridge and the electric control switch. According to the invention, the cement pump of the hybrid power pump truck is connected to the mains supply for power supply when working, and according to the current mains supply price, compared with the diesel oil price, the fuel cost can be greatly reduced by using the alternating current for power supply. According to the invention, through the control of rectification, the aim is to supply power to the pump truck only, and the battery is not fully charged, so that compared with the traditional charger, two sets of different power systems are not needed when the electric supply is connected, and the cost of the whole vehicle is reduced.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to an alternating current power supply control system of a hybrid concrete pump truck.
Background
The power supply modes of the current concrete pump truck mainly comprise two modes: the pump truck consists of a diesel engine, a battery for storing energy, a controller and the like, and the power source of the pump truck is obtained by burning diesel oil. And secondly, the whole vehicle travels by adopting hybrid power, and the cement pump part is powered by mains supply, so that two sets of power systems are required for the whole vehicle to travel and the cement pump, the cost is increased, and the whole vehicle cannot work in places without mains supply.
Disclosure of Invention
The invention aims to: the invention provides an alternating current power supply control system of a hybrid concrete pump truck, which is characterized in that the cement pump of the hybrid concrete pump truck is connected with a mains supply for power supply when working, so that the fuel cost is reduced. The invention only supplies power to the pump truck by controlling the rectification, and does not fully charge the battery, so compared with the traditional charger, the invention has the advantage of low cost.
The technical scheme of the invention is as follows:
an alternating current power supply control system of a hybrid concrete pump truck comprises an EMI filter, a silicon controlled rectifier bridge, an output filtering module, an electric control switch and a battery which are connected in sequence; the power supply device also comprises a first voltage detection module and a second voltage detection module which are used for respectively detecting the output voltage of the output filtering module and the battery voltage and transmitting the output voltage and the battery voltage to the main control unit, and the main control unit is connected with and controls the silicon controlled rectifier bridge and the electric control switch.
Preferably, the input end of the EMI filter inputs three-phase alternating current, and the thyristor rectifier bridge is a three-phase rectifier bridge consisting of six thyristors; the three-phase alternating current is filtered by an EMI filter, rectified by a silicon controlled rectifier bridge, output and filtered to obtain a direct current power supply, and the direct current power supply supplies power to a pumping motor of the concrete pump truck.
Preferably, the main control unit determines the output power of the silicon controlled rectifier bridge by controlling the conduction angle of the silicon controlled rectifier according to the working state of a pumping motor of the hybrid concrete pump truck; when the pumping motor does not work and the voltage of the battery is less than a set value, the battery is charged by controlling the output current.
Preferably, the main control unit collects the voltage of the direct current power supply and the voltage of the battery, compares the voltage of the battery, and does not output the direct current power supply when the voltage of the battery is greater than the voltage of the direct current power supply; when the voltage of the battery is less than the voltage of the direct current power supply, the silicon controlled rectifier bridge is controlled to enable the output voltage to be consistent with the voltage of the battery, the electric control switch is closed, and the direct current power supply is output.
Preferably, the electric control switch adopts a contactor.
Preferably, the output filtering module adopts a chargeable capacitor C.
Preferably, the main control unit further detects an output current of the dc power supply through a current detection module.
The invention has the advantages that:
because the concrete pump truck cement pump does not need to move when working, the invention connects the cement pump of the hybrid pump truck into the commercial power supply when working, according to the current commercial power price, compared with the diesel oil price, the cost of fuel oil can be greatly reduced by using the alternating current power supply. According to the invention, through the control of rectification, the aim is to supply power to the pump truck only, and the battery is not fully charged, so that compared with the traditional charger, two sets of different power systems are not needed when the electric supply is connected, and the cost of the whole vehicle is reduced.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic block diagram of an AC power control system according to the present invention;
FIG. 2 is a block diagram of the rectification control of the AC power supply control system of the present invention;
fig. 3 is a schematic diagram of the overall circuit design of the present invention.
Detailed Description
As shown in fig. 1, the ac power supply control system of the hybrid concrete pump truck of the present invention includes an EMI filter, a thyristor bridge, an output filter module, a contactor and a battery, which are connected in sequence; the power supply device also comprises a first voltage detection module, a current detection module and a second voltage detection module, wherein the first voltage detection module, the current detection module and the second voltage detection module are respectively used for detecting and outputting the output voltage, the output current and the battery voltage of the filtering module and transmitting the output voltage, the output current and the battery voltage to the main control unit, and the main control unit is connected with and controls the silicon controlled rectifier bridge and the contactor.
As shown in fig. 2, the main control unit determines the output power of the thyristor rectifier bridge by controlling the conduction angle of the thyristor according to the working state of the pumping motor of the hybrid concrete pump truck; when the pumping motor does not work and the voltage of the battery is less than a set value, the battery is charged by controlling the output current.
The main control unit collects the voltage of the direct current power supply and the voltage of the battery, compares the voltage of the direct current power supply with the voltage of the battery, and does not output the direct current power supply when the voltage of the battery is larger than the voltage of the direct current power supply; when the voltage of the battery is less than the voltage of the direct current power supply, the silicon controlled rectifier bridge is controlled to enable the output voltage to be consistent with the voltage of the battery, the electric control switch is closed, and the direct current power supply is output.
As shown in fig. 3, 380V three-phase ac is input to the input terminal of the EMI filter in this embodiment, the thyristor rectifier bridge is a three-phase rectifier bridge composed of six thyristors Q1-Q6, and the output filter module employs a chargeable capacitor C. The three-phase alternating current is filtered by an EMI filter, rectified by a silicon controlled rectifier bridge, output and filtered to obtain a direct current power supply, and the direct current power supply supplies power to a pumping motor of the concrete pump truck.
In the scheme of the embodiment, the capacitor C is charged by direct-current voltage after rectification by the silicon controlled rectifier, and the rectifier bridge adopts the silicon controlled rectifier and can close rectification compared with a diode rectification scheme so as to regulate output voltage. Compared with devices such as IGBT and MOSFET, the silicon controlled rectifier has the advantages of lower price and higher withstand voltage, and is very suitable for high-power rectification.
The main control circuit detects the rectified voltage and compares the rectified voltage with the battery voltage. And after the rectification controller obtains a power request, the contactor is closed in a reasonable voltage difference range by controlling the direct-current voltage required by the rectification of the controlled silicon, and the power is output. The output is provided with current detection, the current can enter a battery for charging or provide power for the pumping motor through control, and when a fault occurs, the contactor is disconnected.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.
Claims (7)
1. An alternating current power supply control system of a hybrid concrete pump truck is characterized by comprising an EMI filter, a silicon controlled rectifier bridge, an output filtering module, an electric control switch and a battery which are connected in sequence; the power supply device also comprises a first voltage detection module and a second voltage detection module which are used for respectively detecting the output voltage of the output filtering module and the battery voltage and transmitting the output voltage and the battery voltage to the main control unit, and the main control unit is connected with and controls the silicon controlled rectifier bridge and the electric control switch.
2. The AC power supply control system of the hybrid concrete pump truck as claimed in claim 1, wherein three-phase AC power is input to the input end of the EMI filter, and the SCR bridge is a three-phase rectifier bridge composed of six SCR's; the three-phase alternating current is filtered by an EMI filter, rectified by a silicon controlled rectifier bridge, output and filtered to obtain a direct current power supply, and the direct current power supply supplies power to a pumping motor of the concrete pump truck.
3. The AC power supply control system of claim 2, wherein the main control unit determines the output power of the SCR bridge by controlling the conduction angle of the SCR according to the working state of the pumping motor of the concrete pump truck; when the pumping motor does not work and the voltage of the battery is less than a set value, the battery is charged by controlling the output current.
4. The AC power supply control system of the hybrid concrete pump truck as claimed in claim 3, wherein the main control unit collects DC power supply voltage and battery voltage, compares the DC power supply voltage with the battery voltage, and when the battery voltage is greater than the DC power supply voltage, the DC power supply does not output; when the voltage of the battery is less than the voltage of the direct current power supply, the silicon controlled rectifier bridge is controlled to enable the output voltage to be consistent with the voltage of the battery, the electric control switch is closed, and the direct current power supply is output.
5. The AC power supply control system of the hybrid concrete pump truck as claimed in claim 4, wherein the electric control switch adopts a contactor.
6. The AC power supply control system of the hybrid concrete pump truck as claimed in claim 3, wherein the output filter module adopts a chargeable capacitor C.
7. The AC power supply control system of the hybrid concrete pump truck as claimed in claim 3, wherein the main control unit further detects the output current of the DC power supply through a current detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618542.1A CN114400656A (en) | 2021-12-28 | 2021-12-28 | Alternating current power supply control system of hybrid concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618542.1A CN114400656A (en) | 2021-12-28 | 2021-12-28 | Alternating current power supply control system of hybrid concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114400656A true CN114400656A (en) | 2022-04-26 |
Family
ID=81228756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111618542.1A Pending CN114400656A (en) | 2021-12-28 | 2021-12-28 | Alternating current power supply control system of hybrid concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114400656A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116207816A (en) * | 2022-12-31 | 2023-06-02 | 常柴股份有限公司 | Unmanned aerial vehicle charging system and method |
-
2021
- 2021-12-28 CN CN202111618542.1A patent/CN114400656A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116207816A (en) * | 2022-12-31 | 2023-06-02 | 常柴股份有限公司 | Unmanned aerial vehicle charging system and method |
| CN116207816B (en) * | 2022-12-31 | 2024-03-29 | 常柴股份有限公司 | Unmanned aerial vehicle charging system and method |
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