[background technology]
Comprise three kinds of power converters such as three phase inverter, charger and single-phase inverter in the railroad coach DC600V vehicle power converting means.Three kinds of power converters such as three phase inverter, charger and single-phase inverter in the tradition vehicle power converting means adopt three cover Different control hardware and Control Software.Comprise control power supply, inverter control plate, power model drive plate, transducer etc. such as the three-phase inverter control section, wherein inverter control plate generally adopts full-digital control.The charger control section comprises control power supply, charger control board, power model drive plate and transducer etc., and wherein the charger control board generally adopts simulation control or modulus to mix control etc.The single-phase inverter control section comprises control power supply, copped wave boost control board, single-phase inversion control board, power model drive plate and transducer etc.
Above-mentioned various control board, drive plate, power panel all are to design separately according to requirement in practical systems, and the hardware difference of control board is bigger, and Control Software also has nothing in common with each other simultaneously.Three kinds of Different control hardware will cause a large amount of design work amounts, also will inevitably cause material variety many simultaneously, and it is many to manufacture process flow, problems such as after-sale service standby redundancy kind is many, repair and maintenance inconvenience.
[utility model content]
In view of this, for realizing that the utility model provides a kind of railroad coach vehicle power converting means general-purpose control system to the control that unitizes of three phase inverter, charger and single-phase inverter.
A kind of general-purpose control system that can realize the railroad coach vehicle power converting means of unified control to three phase inverter, charger and single-phase inverter comprises master control borad, input circuit, input side transducer, device for power switching, power model drive plate, output loop, delivery end sensor and control power panel.The input power supply is out-put supply by said input circuit entering and after passing through said input circuit, device for power switching and output loop successively; Said master control borad is connected with said input circuit, input side transducer, power model drive plate, output loop and delivery end sensor respectively; The control power panel is respectively said input side transducer, delivery end sensor, master control borad and power model drive plate provides power supply, and said master control borad is provided with three kinds of different plate sign indicating numbers of corresponding three phase inverter, charger and single-phase inverter respectively.
Preferably; Said master control borad has 32 high performance control devices; Said master control borad comprises control chip, analog quantity treatment circuit, digital quantity input circuit, MOSFET type digital quantity output circuit, relay-type digital quantity output circuit, pulse differential output circuit and short-circuit protection signal differential input circuit, plate sign indicating number interface, debugging maintenance interface and general serial communication bus, and said analog quantity treatment circuit, digital quantity input circuit, MOSFET type digital quantity output circuit, relay-type digital quantity output circuit, pulse differential output circuit and short-circuit protection signal differential input circuit, plate sign indicating number interface, debugging maintenance interface and general serial communication bus all are connected with said control chip.
Preferably, said device for power switching adopts the IGBT module.
Preferably, the output signal of said input side transducer, delivery end sensor is a current signal.
Preferably, said control power panel be respectively said input side transducer, delivery end sensor, master control borad, power model drive plate provide 5V, ± power supply of 15V, 24V and 110V.
The general-purpose control system of the railroad coach vehicle power converting means of the utility model is unified it through the control section of analyzing three phase inverter, charger and single-phase inverter and is integrated; Realize general controls through master control borad being provided with three kinds of different plate sign indicating numbers to three kinds of power converters; Can effectively reduce the buying material variety; Be convenient to manufacture, be convenient to after-sale service, can accelerate railway system's Inspection and Repair of Passenger Cars efficient; Improve the passenger vehicle utilance, have bigger social benefit and economic benefit.
[embodiment]
In order to understand the utility model better, below will combine accompanying drawing that the embodiment of utility model is carried out detailed explanation.
Find through analyzing three phase inverter, charger and single-phase inverter; These three kinds of converters all have input circuit, device for power switching, output loop; And transducer also detects the electric weight of input circuit, the electric weight of output loop; Device for power switching also has corresponding drive plate, and control power panel etc. is all arranged.The utility model is designed for uniformity three phase inverter, charger and single-phase inverter, adopts identical control circuit board, and the embedded software that design is unitized is selected control mode through the coding that circuit board is outside, reaches unified control purpose.
See also Fig. 1, the preferred embodiment railroad coach vehicle power converting means general-purpose control system of the utility model comprises master control borad 10, input circuit 20, input side transducer 30, device for power switching 40, power model drive plate 50, output loop 60, delivery end sensor 70 and control power panel 80.The input power supply gets into general-purpose control system by input circuit 20, passes through input circuit 20, device for power switching 40, output loop 60 successively, by output loop 60 out-put supplies.Master control borad 10 is connected with input circuit 20, input side transducer 30, power model drive plate 50, output loop 60 and delivery end sensor 70 respectively.Control power panel 80 is respectively input side transducer 30, delivery end sensor 70, master control borad 10, power model drive plate 50 provides power supply.
Master control borad 10 is cores of general-purpose control system, has comprised unified control circuit board hardware designs and unified embedded Control software design.Input side transducer 30, delivery end sensor 70 detect the electric weight of input circuit 20, output loop 60 respectively, and will export the judgement of sampling of analog circuit that signal is input to master control borad 10.Input circuit 20 will be imported, charge and put the point-contactor control signal and send to master control borad 10, and master control borad 10 returns to input circuit 20 with feedback signal.Output loop 60 output contactor control signals are given master control borad 10, and master control borad 10 returns to output loop 60 with feedback signal.Master control borad 10 sends to power model drive plate 50 with pwm pulse signal, and power model drive plate 50 sends to device for power switching 40 with drive signal again.When device for power switching 40 is short-circuited short-circuit signal is issued power model drive plate 50, power model drive plate 50 sends to master control borad 10 with short-circuit signal again.
When general-purpose control system is designed, must simplify and unify major loop, particularly device for power switching 40 must use same type of device, and the output signal type of input side transducer 20, delivery end sensor 70 must be identical.In the present invention, device for power switching 40 all uses IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) module, and the output signal of input side transducer 20, delivery end sensor 70 is current signal.
Carry out reasonably unified design for master control borad 10, power model drive plate 50 and 80 needs of control power panel.Control power panel 80 be respectively input side transducer 30, delivery end sensor 70, master control borad 10, power model drive plate 50 etc. provide 5V, ± 15V, 24V and 110V power supply etc.To power model drive plate 50 of single power module design, so that adapt to the different topology structure of different converters.
See also Fig. 2, master control borad 10 is a core with 32 high performance control devices among the present invention, is equipped with programmable logic device to increase flexibility, can realize high-performance, High Accuracy Control.Master control borad 10 also comprises control chip 110, analog quantity treatment circuit 120, digital quantity input circuit 130, MOSFET type digital quantity output circuit 140, relay-type digital quantity output circuit 150, pulse differential output circuit and short-circuit protection signal differential input circuit 160, plate sign indicating number interface 170, debugging maintenance interface (RS232) 180 and general serial communication bus (CAN, RS485 etc.) 190.Analog quantity treatment circuit 120, digital quantity input circuit 130, MOSFET type digital quantity output circuit 140, relay-type digital quantity output circuit 150, pulse differential output circuit and short-circuit protection signal differential input circuit 160, plate sign indicating number interface 170, debugging maintenance interface 180 and general serial communication bus 190 all are connected with control chip 100.
The signal of input side and delivery end sensor 30,70 is input to control chip 110 through analog quantity treatment circuit 120.The contactor state feedback is input to control chip through digital quantity input circuit 130.Control chip 110 is through MOSFET type digital quantity output circuit 140 output contactor drive signals.Control chip 110 is through relay-type digital quantity output circuit 150 output system operating state signals.The pulse differential output circuit is connected with power model drive plate 50 with short-circuit protection signal differential input circuit 160, input short-circuit protection signal and output pulse signal.General serial communication bus 190 is connected with display screen, can show fault-signal.
Above-mentioned general-purpose control system can be provided with different plate sign indicating numbers to three kinds of converters of different and different application scenarios.Embedded Control software can be realized the unified control that three-phase inverter, charger, single-phase inverter and different application thereof require; Through identification plate sign indicating number; For example: the plate sign indicating number be 100 o'clock be three-phase inversion, 110 o'clock is the charger mode, 010 then is the single-phase inversion mode; Carry out different programs code and algorithm, thereby realize the general of master control borad.
Because the field of three kinds of converter applications is fashionable different; So the device that providing and exporting electrical connection of three kinds of converter input power supplys is distinguished to some extent in the block diagram one; Three phase inverter: the input power supply is to be produced by the power supply system of train of DC600V voltage, the device that output is electrically connected for as: blower fans etc. need the electric device of three-phase 380V power supply; Charger: the input power supply is that output is connected to storage battery, and storage battery is charged by the power supply system of train generation of DC600V voltage; Single-phase inverter: supplied power by storage battery, output AC220V voltage source is connected to equipment such as socket on the train, air-conditioning.
The general-purpose control system of the utility model can effectively reduce the buying material variety, is convenient to manufacture, and is convenient to after-sale service, can accelerate railway system's Inspection and Repair of Passenger Cars efficient, improves the passenger vehicle utilance, has bigger social benefit and economic benefit.
The above embodiment has only expressed several kinds of execution modes of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.