CN105281380A

CN105281380A - Power supply system with multipath output and establishment and control method of power supply system

Info

Publication number: CN105281380A
Application number: CN201410268615.2A
Authority: CN
Inventors: 付细泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-09
Filing date: 2014-06-09
Publication date: 2016-01-27

Abstract

The invention relates to a power supply system with multipath output and an establishment and control method of the power supply system. The power supply system comprises switching module units, power module units, communication processing units and a system control unit, the power module units are dynamically grouped to corresponding output paths according to requirements of the output paths, the power module units correspond to the switching module units via communication identification units of the communication processing units respectively, and the power module units correspond to the output paths so that the different paths of the multipath output power supply can control output parameters respectively. The system and method thereof can be used for charging batteries independent from each other.

Description

A kind of power-supply system of multiple-channel output and structure thereof and control method

Technical field

The present invention relates to power-supply system, more particularly, relate to a kind of power-supply system of multiple-channel output and structure thereof and control method.

Background technology

Power-supply system is a kind of common system, is carried out converting by input voltage and outputs to the load of electricity consumption.Load comprises various power consumption equipment, and battery is also a kind of load, needs to charge to battery in a lot of situation.The power-supply system of multiple-channel output has multiple output along separate routes, is usually used in simultaneously to the situation exporting branch feeding.In some occasion, need to control independently the parameter such as voltage, electric current, power, switching on and shutting down of each shunt, an one typically power-supply system is charged to multiple independently battery pack, and such as a power-supply system is simultaneously to many charging electric vehicles.

Fig. 1 is a kind of prior art, when needs two-way independently exports, employs two groups of independently power supplys, and two-way is exported can the various parameter such as control voltage, electric current, power, switching on and shutting down completely independently.In Fig. 1, power module unit (PMU) realizes input voltage SVin to be transformed into required output, wherein #1, #2 power module unit (PMU) and the corresponding first via of #1 system control unit (SCU) export, #3, #4 power module unit (PMU) and corresponding second tunnel of #2 system control unit (SCU).This conceptual design is easy, it is convenient to set up, but there is significant shortcoming: the power module unit (PMU) that multiple-channel output is corresponding is independently, the power module unit (PMU) of two groups of power supplys can not be shared, the heap(ed) capacity design that must export by two-way during such system, power module element number used is many, and therefore cost is high, and volume is large.Meanwhile, when the power module unit (PMU) of one group of power supply breaks down, the fan-out capability of this group power supply declines, and owing to can not share between two groups of power supplys, cannot allocate according to priority, overall reliability is low.And two groups of power supplys employ and independently control, the integrated level of control is low, operation inconvenience.

Summary of the invention

For the deficiencies in the prior art, the present invention is intended to the power system approach proposing cost low, reliability, easy to operate multiple-channel output.

This technical scheme 1 is, a kind of structure of multiple-output electric power system and control method, and the input source of described multiple-output electric power system is single-phase alternating current or three-phase alternating current or direct current, exports as alternating current or direct current:

Described multiple-output electric power system comprises system control unit (SCU), a K power module unit basis group (PMUZ), a K handover module unit (QMU), N group output (PBS), communication bus (SComBus), a K communications processor element (COMU), switching controls bus (QCBus) along separate routes, wherein K is more than or equal to 2, N be more than or equal to 2, N group export along separate routes (PBS) be divided into PB1, PB2 ..., PBN;

Described each power module unit basis group (PMUZ) comprises one or more power module unit (PMU), and the quantity of the power module unit (PMU) that each power module unit basis group (PMUZ) comprises can be identical or different;

Described communications processor element (COMU) and power module unit basis group (PMUZ) one_to_one corresponding; K described handover module unit (QMU) also with K power module unit basis group (PMUZ) one_to_one corresponding, the base set of the corresponding power module unit (PMU) of each handover module unit (QMU);

Described power module unit (PMU) comprises input interface (PMVinPort), output interface (PMVoPort), control interface (PMCtrPort), and wherein control interface (PMCtrPort) comprises communication interface (PMComPort); Described handover module unit (QMU) comprises input interface (QMVinPort), control interface (QMctrPort), N number of output interface (QMVoS), N number of output interface (QMVoS) be respectively QMVo1, QMVo2 ..., QMVoN; Described communications processor element (COMUU) comprise to upper communication interface (COMHPort) and under connect mouth (COMLPort); Described system control unit (SCU) comprises lower communication interface (SCComPort), switching controls interface (SCQMCPort);

The input interface (PMVinPort) of described power module unit (PMU) is connected to the input SVin of system, the output interface (PMVoPort) of the power module unit (PMU) of same power module unit basis group (PMUZ) is all connected to the input interface (QMVinPort) of corresponding handover module unit (QMU), communication interface (PMComPort) in the control interface (PMCtrPort) of the power module unit (PMU) of same power module unit basis group (PMUZ) be connected to communications processor element (COMU) corresponding to this power module unit basis group (PMUZ) to lower communication interface (COMLPort), described communications processor element (COMU) to upper communication interface (COMHPort) by communication bus (SComBus) be connected to system control unit (SCU) to lower communication interface (SCComPort), N number of output interface (QMvoS) of described handover module unit (QMU) is connected to the N group output of system along separate routes (PBS) respectively correspondingly, namely output interface 1 (QMVo1) is connected to the 1st and exports shunt (PB1), output interface 2 (QMVo2) is connected to the 2nd and exports along separate routes (PB2), by that analogy, output interface N (QMVoN) is connected to N and exports along separate routes (PBN), the control interface (QMctrPort) of described handover module unit (QMU) is connected to the switching controls interface (SCQMCPort) of system control unit (SCU) by switching controls bus (QCBus),

Described communications processor element (COMU) is by communicating to the power module unit (PMU) that lower communication interface (COMLPort) and corresponding power module unit basis group (PMUZ) comprise, by communicating with system control unit (SCU) to upper communication interface (COMHPort), thus the control information of system control unit (SCU) is sent to corresponding power module unit (PMU); Described communications processor element (COMU) also comprises communication identification unit (ComIDU), described communication identification unit (ComIDU) is by hardware setting identification mark, and the method for setting identification mark is: the identification mark that (A) all communication identification unit (ComIDU) set is different; (B) identification mark is preset before described power-supply system normally works; This identification mark is converted to identifier ID by described communications processor element (COMU), makes to have unique identification number ID during the receiving and sending messages to upper communication interface (COMHPort) of this communications processor element (COMU); And all identification number ID are arranged in system control unit (SCU);

Described power module unit (PMU) is according to system control unit (SCU) control information transmitted from communications processor element (COMU), input voltage SVin is transformed to required voltage, electric current or power, and exports from output interface (PMVoPort);

Described electrical source exchange modular unit (QMU) comprises controlled diverter switch and corresponding control assembly; Described controlled diverter switch is connected between described input interface (QMVinPort) and described output interface (QMVos), described control assembly from control interface (QMctrPort) reception control signal, the controlled diverter switch described in control the signal switching inputted from input interface (QMVinPort) to required output interface (QMVoS);

Described system control unit (SCU) export the voltage of along separate routes (PBS), electric current or power requirement according to described N group, K the whole component of power module unit basis group (PMUZ) is fitted on and exports along separate routes (PBS) accordingly, and control to be switched to this output with K the corresponding handover module unit (QMU) connected of power module unit basis group (PMUZ) along separate routes (PBS), concrete control method is:

(1) system control unit (SCU) described in arranges the identifier ID of communications processor element (COMU) corresponding to K power module unit basis group (PMUZ) before described power-supply system normally works, identify K handover module unit (QMU) and K power module unit basis group (PMUZ), and the corresponding relation between the mark pre-setting the mark of handover module unit (QMU) and the base set (PMUZ) of power module unit (PMU);

(2) the N group described in calculating exports voltage, electric current or power along separate routes required for (PBS), according to output current or the gross output of result of calculation and power available modular unit (PMU), K power module unit basis group (PMUZ) is divided into N number of coupling group (PT), and N number of coupling group (PT) exports (PBS) one_to_one corresponding along separate routes with N number of; The handover module unit (QMU) corresponding with K power module unit basis group (PMUZ) also with N number of to export (PBS) along separate routes corresponding; The output corresponding to power module unit basis group (PMUZ) belonging to power module unit (PMU) along separate routes (PBS) is output corresponding to this power module unit (PMU) along separate routes (PBS), thus obtains each all power module unit (PMU) exported along separate routes corresponding to (PBS); The method of point coupling group (PT) is: each power module unit basis group (PMUZ), assign at most in a coupling group (PT), can regardless of in any coupling group (PT), in each coupling group (PT), the quantity of power module unit basis group (PMUZ) is 0 to N number of;

(3) export along separate routes (PBS) to each, according to the requirement exporting (PBS) along separate routes, based on the identifier ID of the communications processor element (COMU) of power module unit basis group (PMUZ) correspondence included by corresponding coupling group (PT), the control overflow of voltage, electric current or power is sent to all power module unit (PMU) corresponding to corresponding coupling group (PT) by communications processor element (COMU);

(4) according to handover module unit (QMU) and the corresponding relation exporting (PS) along separate routes, send control signal by switching controls bus (QCBus) to handover module unit (QMU), be all switched to corresponding output along separate routes (PBS) with this output handover module unit (QMU) that (PBS) is corresponding along separate routes;

(5) when the requirement of described output shunt (PBS) changes, same control method is restarted from step (2).Wherein the order of (3) and (4) can be exchanged according to control overflow.

Technical scheme 2, the input source based on the multiple-output electric power system described in technical scheme 1 is alternating current, exports as direct current; Communication interface (PMComPort) in the control interface (PMCtrPort) of described power module unit (PMU) and communications processor element (COMU) be CAN communication interface to lower communication interface (COMLPort), communications processor element (COMU) be RS485 communication interface to upper communication interface (COMHPort) and system control unit (SCU) to lower communication interface (SCComPort).

Technical scheme 3 is on the basis of technical scheme 2, and the quantity of the power module unit (PMU) having at least the power module unit basis group (PMUZ) described in comprise is greater than 1.

Technical scheme 4 is a kind of power-supply system of multiple-channel output, the input source of described multiple-output electric power system is single-phase alternating current or three-phase alternating current or direct current, export as alternating current or direct current, described multiple-output electric power system comprises system control unit (SCU), K power module unit basis group (PMUZ), K handover module unit (QMU), N group exports along separate routes (PBS), communication bus (SComBus), K communications processor element (COMU), switching controls bus (QCBus), wherein K is more than or equal to 2, N is more than or equal to 2, N group exports (PBS) along separate routes and is divided into PB1, PB2, PBN,

Described power module unit (PMU) comprises input interface (PMVinPort), output interface (PMVoPort), control interface (PMCtrPort), and wherein control interface (PMCtrPort) comprises communication interface (PMComPort); Described handover module unit (QMU) comprises input interface (QMVinPort), control interface (QMctrPort), N number of output interface (QMVoS), N number of output interface (QMVoS) be respectively QMVo1, QMVo2 ..., QMVoN; Described communications processor element (COMUU) comprise to the other interface (COMHPort) of upper communication and under connect mouth (COMLPort); Described system control unit (SCU) comprises lower communication interface (SCComPort), switching controls interface (SCQMCPort);

Technical scheme 5, on the basis of technical scheme 4, the input source of described multiple-output electric power system is single-phase alternating current or three-phase alternating current or direct current, export as direct current, described multiple-output electric power system also comprises frame, described power module unit (PMU) is Modular electrical source converter, is arranged in frame; The input interface (PMVinPort) of described power module unit (PMU), output interface (PMVoPort), control interface (PMCtrPort) are attachment plug or socket, the correspondence position of frame installs the attachment plug of corresponding Modular electrical source converter or socket to the gang socket of inserting or plug, make Modular electrical source converter have Hot Plug Capability, described communications processor element (COMU) is separated with described Modular electrical source converter and is arranged in frame.

Technical scheme 6, on the basis of technical scheme 4 or 5, communication interface (PMComPort) in the control interface (PMCtrPort) of described power module unit (PMU) and communications processor element (COMU) be CAN communication interface to lower communication interface (COMLPort), communications processor element (COMU) be RS485 communication interface to upper communication interface (COMHPort) and system control unit (SCU) to lower communication interface (SCComPort), described communications processor element (COMU) comprises microprocessor or DSP, microprocessor or DSP comprise two communication interfaces, 1 is RS485 interface, one is CAN interface, the identifier ID of the communication identification unit (ComIDU) that described communications processor element (COMU) comprises is RS485 mailing address.

Technical scheme 7, on the basis of technical scheme 6, the quantity of the described power module unit (PMU) included by K power module unit basis group (PMUZ) is 1 or 2, and the quantity of the power module unit (PMU) having at least a power module unit basis group (PMUZ) to comprise is 2.

Technical scheme 8 is on the basis of technical scheme 6, and the input source of described multiple-output electric power system is alternating current, exports as direct current, and described N group exports shunt (PBS) for the independently battery charging of N group.

Technical scheme 9 is on the basis of technical scheme 8, and the control interface (QMctrPort) of described handover module unit (QMU), the switching controls interface (SCQMCPort) of system control unit (SCU) are RS485 communication interface.

Technical scheme 10 is on the basis of technical scheme 8, and the quantity N of output shunt (PBS) of described power-supply system is 2.

Technical scheme of the present invention achieves sharing with multiplexing of the power module unit (PMU) of multiple-channel output, significantly reduces system cost, improves availability and the reliability of system, be convenient to the centralized control to system simultaneously, easy to operate.

Accompanying drawing explanation

Fig. 1 is a kind of schematic diagram of background technology.

Fig. 2 is the schematic diagram of first embodiment of the invention.

Fig. 3 is the schematic diagram of the handover module unit of second embodiment of the invention.

Fig. 4 is the schematic diagram of the handover module unit of third embodiment of the invention.

Fig. 5 is the schematic diagram of the communication identification unit of fourth embodiment of the invention.

Fig. 6 is the schematic diagram of the handover module unit of fifth embodiment of the invention.

Fig. 7 is the appearance schematic diagram of the power module unit of fifth embodiment of the invention.

Embodiment

The theory diagram of first embodiment of the invention as shown in Figure 2.Fig. 2 forms the power-supply system that N road exports.Power-supply system comprises 6 power module unit (PMU), be divided into 3 power module unit basis groups (PMUZ), first power module unit basis group (PMUZ) comprises 1# power module unit (PMU), second power supply modular unit base set (PMUZ) comprises 2# and 3# power module unit (PMU), and the 3rd power module unit basis group (PMUZ) comprises 4#, 5#, 6# power module unit (PMU).Power-supply system also comprises 3 handover module unit (QMU), 3 communications processor elements (COMU) and a system control unit (SCU).Power-supply system also comprises N group and exports along separate routes (PBS), namely PB1, PB2 ..., PBN altogether N group.Power-supply system also comprises switching controls bus (QCBus) and communication bus (SComBus).

Can according to export along separate routes (PBS) number, power allocation requirement, power module unit (PMU) the condition designing power supply modular unit base set (PMUZ) neatly such as peak power output.Such as, exporting (PBS) is along separate routes 2, the maximum power that two-way needs simultaneously is 40KW and 20KW, the power of 6 power module unit (PMU) is all 10KW, then can be divided into the base set of 3 power module unit (PMU), often group is 2 power module unit (PMU).For another example, exporting (PBS) is along separate routes 2, the maximum power that two-way needs simultaneously is 50KW and 10KW, the power of 6 power module unit (PMU) is all 10KW, then can being divided into 3 power module unit basis groups (PMUZ), often organizing as being respectively 1,2,3 power module unit (PMU).

The input of 6 power module unit (PMU) is from the input of power-supply system; system input (SVin) is connected to by input interface (PMVinPort); usual system is input between the input of power module unit and is also connected with protective circuit or other power distribution circuit, and these connections do not affect operation principle of the present invention and use.System input (SVin) can be single phase alternating current (A.C.) input, also can be three-phase alternating current input, also can be direct current input, also can Mixed design; Can be the input of same road, the input interface (PMVinPort) of power module unit (PMU) links together; Also can be multichannel input, the input interface (PMVinPort) of different electrical power modular unit (PMU) is connected to go the same way in input.The change that input connects does not affect use of the present invention.

The corresponding handover module unit (QMU) of each power module unit basis group (PMUZ), 1st base set (PMUZ) is corresponding with 1# handover module unit (QMU), 2nd base set (PMUZ) is corresponding with 2# handover module unit (QMU), and the 3rd base set (PMUZ) is corresponding with 3# handover module unit (QMU).

1st power module unit basis group (PMUZ) comprises 1# power module unit (PMU), and the output port (PMVoPort) of 1# power module unit (PMU) is connected to the input port (QMVinPort) of 1# handover module unit (QMU); 2nd power module unit basis group (PMUZ) comprises 2#, 3# power module unit (PMU), and the output port (PMVoPort) of these 2 power module unit (PMU) is all connected to the input port (QMVinPort) of 2# handover module unit (QMU); 3rd power module unit basis group (PMUZ) comprises 4#, 5#, 6# power module unit (PMU), and the output port (PMVoPort) of these 3 power module unit (PMU) is all connected to the input port (QMVinPort) of 3# handover module unit (QMU).

Each power module unit basis group (PMUZ) has a communications processor element (COMU) corresponding, 1st the corresponding 1# communications processor element (COMU) of power module unit basis group (PMUZ), 2nd the corresponding 2# communications processor element (COMU) of power module unit basis group (PMUZ), the 3rd the corresponding 1# communications processor element (COMU) of power module unit basis group (PMUZ).Communications processor element (COMU) also comprises communication identification unit (ComIDU).

Handover module unit (QMU) comprises input interface (QMVinPort), output interface (QMVoS) and control interface (QMctrPort).Output interface comprise QMVo1, QMVo2 ..., QMVoN is altogether N number of, be connected to N number of output correspondingly along separate routes, namely QMVo1 is connected to the first output shunt PB1, QMVo2 and is connected to the second output PB2 along separate routes, by that analogy, QMVoN is connected to N and exports PBN along separate routes.Handover module unit (QMU) comprises controlled diverter switch and control assembly thereof, and controlled diverter switch is connected between input port (QMVinPort) and N number of output port.The gate-controlled switches such as relay, contactor, semiconductor switch parts can as controlled diverter switch.The control assembly of controlled diverter switch accepts control signal from the control interface (QMctrPort) of handover module unit (QMU), control controlled diverter switch the input signal being connected to input interface (QMVinPort) be switched to QMVo1, QMVo2 ..., some output interfaces in QMVoN, according to control needs, can not be switched to any one of N number of output interface by control inputs signal yet.

System control unit (SCU) comprises lower communication interface (SCComPort) and switching controls interface (SCQMCPort), realizes the integral control function of power-supply system.System control unit (SCU) communication bus is connected to lower communication interface (SCComPort), control information is sent to communications processor element (COMU), communications processor element (COMU) re-sends to the power module unit (PMU) communicated with it.Control information comprises power module unit (PMU) switching on and shutting down, output voltage, output current, power output etc.; Also can pass through communications processor element (COMU) and obtain the information needed from power module unit (PMU), such as peak power output, current output voltage, current output current, warning information, on-off state etc.The switching controls interface (SCQMCPort) of system control unit (SCU) is connected to switching controls bus (QCBus), each handover module unit (QMU) can be sent to the control information of handover module unit (QMU), control information comprise the input signal being connected to input interface (QMVinPort) be switched to QMVo1, QMVo2 ..., which output interface in QMVoN, any one not being switched to N number of output interface also can as a kind of situation.

Communications processor element (COMU) is by communicating with power module unit (PMU) to lower communication interface (COMLPort), can send control information to power module unit (PMU), also can obtain information from power module unit (PMU).Communications processor element (COMU) is by communicating with system control unit (SCU) to upper communication interface (COMHPort), obtain the control information of power module unit (PMU), send the state information of power module unit (PMU).

The communication identification unit (ComIDU) that communications processor element (COMU) comprises for knowing the mark ID determining communications processor element (COMU), thus has unique mark when communications processor element (COMU) is communicated with system control unit (SCU).According to different communication modes, available different mode knows the mark ID determining communications processor element (COMU).If communications processor element (COMU) is RS485 interface to upper communication interface (COMHPort), communication bus (SComBus) is RS485 bus, then can set the RS485 communications address information of communications processor element (COMU) as identification mark with communication identification unit (ComIDU), communications processor element (COMU) reads RS485 communications address information from communication identification unit (ComIDU), is converted into the mailing address of RS485.The mailing address of the communications processor element (COMU) that each communication identification unit (ComIDU) sets is different, communications processor element (COMU) is also unique when changing into RS485 mailing address, the rule transformed also is predetermined, usually sets before dispatching from the factory.Therefore, when changing power module unit (PMU) of this position during reality uses, the RS485 mailing address of this power module unit (PMU) does not change.All identification number ID are arranged in system control unit (SCU) before system worked well, usually arrange before dispatching from the factory, and also can arrange according to identification mark correspondence at the scene.

If communications processor element (COMU) is CAN interface to upper communication interface (COMHPort), communication bus (SComBus) is CAN, system control unit (SCU) be CAN interface to lower communication interface (SCComPort), then first in CAN communication agreement, define identification marking field, the identifying information of communications processor element (COMU) is set as identification mark with communication identification unit (ComIDU), communications processor element (COMU) reads corresponding identification mark information from the communication identification unit (ComIDU) of correspondence, convert identification marking field data to, be sent to communication bus.System control unit (SCU) is corresponding with CAN communication address by these data after reading this field data from communication bus.The identification mark of the communications processor element (COMU) that each communication identification unit (ComIDU) sets is different, the data that communications processor element (COMU) changes into identification field are also unique, and the rule of conversion is also predetermined.Therefore, when changing power module unit (PMU) of this position, system control unit (SCU) can obtain the mailing address of corresponding power module unit (PMU) according to this field data.All identification number ID are arranged in system control unit (SCU) before system worked well, usually arrange before dispatching from the factory, and also can arrange according to identification mark correspondence at the scene.

The transition of communications that communications processor element (COMU) can realize between two communication interfaces with microprocessor or DSP.According to upper communication interface (COMHPort) with to the suitable microprocessor of lower communication interface (COMLPort) formal character or DSP, if two communication interfaces are all CAN, the microprocessor of select tape two CAN interfaces or DSP; If one is RS485, one is CAN, then select microprocessor or the DSP of a band CAN interface RS485 interface, can solve other communication interface form by similar mode.

Power module unit (PMU) realizes the output signal inputted from input port (PMUVinPort) being converted to needs, and concrete output is determined according to the control overflow of system control unit (SCU).The specific requirement exported comprises the pattern of output, as constant voltage exports or constant current output or constant power output, and concrete output voltage or output current or power output etc.The peak power output of different electrical power modular unit (PMU) can be the same or different, and output voltage range also can be different.

System control unit (SCU) exports the requirements such as the voltage of along separate routes (PBS), electric current or power according to N group, 3 whole components of power module unit basis group (PMUZ) are fitted on and export along separate routes (PBS) accordingly, and control to be switched to this output with 3 corresponding handover module unit (QMU) connected of power module unit basis group (PMUZ) along separate routes, concrete control method is:

(1) system control unit (SCU) arranges the identifier ID of the communications processor element (COMU) corresponding to base set (PMUZ) of power module unit (PMU) before power-supply system is dispatched from the factory, and be designated 1,2,3;

System control unit (SCU) also identifies 3 handover module unit (QMU), such as also identify into 1,2, No. 3, and set the corresponding relation between them according to their corresponding annexation, namely 1# communications processor element (COMU) correspondence being designated 1 is designated the 1# handover module unit (QMU) of 1,2# communications processor element (COMU) correspondence being designated 2 is designated the 2# handover module unit (QMU) of 2, and 3# communications processor element (COMU) correspondence being designated 3 is designated the 3# handover module unit (QMU) of 3;

(2) calculate described in N group export the electric current of shunt required for (PBS) or power, according to output current or the power output of result of calculation and power available modular unit (PMU), K power module unit basis group (PMUZ) is divided into N number of coupling group (PT), and N number of coupling group (PT) exports (PBS) one_to_one corresponding along separate routes with N number of.This example establishes power-supply system to have 2 to export along separate routes, be then divided into 2 coupling groups (PT); Each power module unit basis group (PMUZ), assign at most in a coupling group (PT), in each coupling group (PT), the quantity of power module unit basis group (PMUZ) is 0 to 3, such power module unit basis group (PMUZ) can only with one to export along separate routes (PBS) corresponding, thus make each output shunt (PBS) mutually isolated.If the fan-out capability of all power modular unit (PMU) is greater than all needs exporting (PBS) along separate routes, some power module unit basis groups (PMUZ) can be distributed in any coupling group (PT), these temporary transient untapped power module unit (PMU) can be controlled, at shutdown or standby mode, the loss of power-supply system can be reduced.If the electric current respectively exported along separate routes required for (PBS) or power are greater than the gross power that power-supply system can provide, then need to export priority along separate routes and allocation rule according to each, redefine each electric current or the power that export shunt.

It is IOA that such as demand 1: the 1 exports the electric current that (PB1) needs along separate routes, 2nd exports the electric current that (PB2) needs along separate routes is 50A, then the 1st power module unit basis group (PMUZ) can be assigned to the 1st coupling group (PT), and it is corresponding with the 1st output shunt (PB1), 2nd, the 3rd power module unit basis group (PMUZ) is assigned to the 2nd coupling group (PT), and corresponding with the 2nd output shunt (PB2).

For another example demand 2: the 1 exports the electric current that (PB1) needs along separate routes is 20A, 2nd exports the electric current that (PB2) needs along separate routes is 30A, then the 2nd power module unit basis group (PMUZ) can be assigned to the 1st coupling group (PT), and it is corresponding with the 1st output shunt (PB1), 3rd power module unit basis group (PMUZ) is assigned to the 2nd coupling group (PT), and corresponding with the 2nd output shunt (PB2), and the 1st power module unit basis group (PMUZ) does not distribute any coupling group (PT).

Which the power module unit basis group (PMUZ) that communications processor element (COMU) is corresponding is assigned to and exports along separate routes (PBS), which the power module unit (PMU) communicated with this communications processor element (COMU) is also assigned to and exports along separate routes (PBS), thus obtains each all power module unit (PMU) exported along separate routes corresponding to (PBS); Such as, in demand 1,1st exports (PB1) along separate routes corresponding 1st coupling group (PT), 1st coupling group (PT) comprises the 1st power module unit basis group (PMUZ), corresponding 1# communications processor element (COMU), the 1# power module unit (PMU) communicated with 1# communications processor element (COMU) is assigned to the 1st and exports PB1 along separate routes; 2nd exports (PB2) along separate routes corresponding 2nd coupling group (PT), 2nd coupling group comprises the 2nd, 3 two power module unit basis group (PMUZ), these two base set corresponding 2#, 3# communications processor element (COMU), 5 power module unit (PMU) of 2#, 3#, 4#, 5#, 6# that 2#, 3# communications processor element (COMU) communicates all are assigned to the 2nd and export along separate routes (PB2);

The handover module unit (QMU) corresponding to power module unit basis group (PMUZ) is also corresponding with corresponding output shunt (PBS), such as in demand 1 situation, it is corresponding that 1st handover module unit (QMU) and the 1st exports (PB1) along separate routes, and it is corresponding that the 2nd, 3 handover module unit (QMU) and the 2nd exports shunt (PB2);

(3) export along separate routes (PBS) to each, according to the requirement exporting (PBS) along separate routes, by the communications processor element (COMU) that coupling group (PT) accordingly comprises, voltage, electric current or power and other control overflow are sent to all power module unit (PMU) that corresponding coupling group (PT) comprises, such as during demand 1 situation, 1st exports (PB1) along separate routes requires that output voltage is 460V, second exports (PB2) along separate routes requires output voltage 480V, system control unit (SCU) the requirement that output voltage is 460V send to identifier ID be 1 communications processor element (COMU), this communications processor element (COMU) sends to 1# power module unit (PMU), the requirement being 480V output voltage sends to identifier ID to be 2, the communications processor element (COMU) of 3, these 2 communications processor elements (COMU) send to 2# this control information, 3#, 4#, 5#, the power module unit (PMU) of 6#,

(4) according to handover module unit (QMU) and the corresponding relation exporting (PS) along separate routes, send control signal by switching controls bus (QCBus), be all switched to corresponding output along separate routes with this output handover module unit (QMU) that (PBS) is corresponding along separate routes; Such as, in demand 1 situation, 1st exports (PB1) along separate routes corresponding 1st handover module unit (QMU), then system control unit (SCU) sends control overflow, 1st handover module unit (QMU) is switched to the 1st output interface (QMVo1), thus makes the output of the 1st power module unit (PMU) correspond to the 1st output along separate routes (PB1); In demand 1 situation, 2nd exports (PB1) along separate routes corresponding 2nd, 3 handover module unit (QMU), then system control unit (SCU) sends control overflow, make the 2nd, 3 handover module unit (QMU) be switched to the 2nd output interface (QMVo2), thus make the output of this output power module unit (PMU) corresponding along separate routes correspond to the 2nd output along separate routes (PB2);

(5) when exporting requirement along separate routes and changing, same control method is restarted from step (2).Wherein the order of (3), (4) can change as required.

Control method of the present invention, can according to each needs exporting (PBS) along separate routes, dynamically power module unit basis group (PMUZ) being assigned to exports along separate routes, control each and export output along separate routes, control flexibly, farthest reduce the total amount of power module unit, therefore cost is low.

The overall formation of second embodiment of the invention is with reference to the first embodiment and Fig. 2, power-supply system exports has 2 outputs along separate routes (PBS), its handover module unit (QMU) as shown in Figure 3, in Fig. 3, R1 is the relay of dpdt double-pole double-throw (DPDT), 2 input INA of relay, INB is connected to the input interface (QMVinPort) of handover module unit, 2 normally closed outputs of relay are connected to output interface 1 (QMVo1), often open output and be connected to output interface 2 (QMVo2) for 2 of relay, the control end CH of relay, CL is connected to control interface (QMctrPort).Power-supply system is along separate routes exported to two, this handover module cellular construction is simple, it is convenient to control, as long as give the simple voltage signal of relay just can the attracting state of control relay, thus which input/output interface control handover module unit (QMU) be switched to.In the present embodiment, relay also can be replaced with contactor.

The main assembly of third embodiment of the invention is with reference to the first embodiment and Fig. 2, power-supply system exports has 3 outputs along separate routes (PBS), its handover module unit (QMU) as shown in Figure 4, in Fig. 4, R1, R2, R3 are the relays of dpdt double-pole double-throw (DPDT), 2 inputs INA, INB of relay are connected to the input interface of handover module unit, and 2 normally opened contacts of 3 relays export and are connected respectively to 3 output interfaces 1 (QMVo1), output interface 2 (QMVo2), output interface 3 (QMVo3).With regard to the relay adhesive of control connection at which when needing which is switched to.This handover module cellular construction is simple, is easy to expansion, and when needing the quantity increasing output interface, as long as increase a relay and connect by same mode, in the present embodiment, relay also can be replaced with contactor.

The main assembly of fourth embodiment of the invention is with reference to the first embodiment and Fig. 2, wherein the communication identification unit (ComIDU) that comprises of communications processor element (COMU) as shown in Figure 5, in Fig. 5, R1, R2, R3, R4 are resistance, DPI, DP2, DP3, DP4 are toggle switch or wire jumper, when toggle switch or wire jumper disconnect, corresponding positions exports high level, otherwise, corresponding positions output low level, have in Fig. 54 identification signals add VDD-to-VSS totally 6 signals be connected to recognition interface ComIDPort.16 kinds of combinations can be formed by the on off operating mode of toggle switch or wire jumper.After power module unit (PMU) reads the signal of communication identification unit, 16 kinds of identifier ID can be converted to.If need more identifier ID, increase by one group of resistance and toggle switch or wire jumper by the method for Fig. 5, the combination of the identification signal obtained doubles.

The power-supply system schematic diagram of this 5th embodiment of the present invention is as Fig. 6.This power-supply system comprises 10 power module unit (QMU), 5 communications processor elements (COMU), 5 handover module unit (QMU), system control unit (SCU).Have 3 to export along separate routes (PBS), the N namely in figure is 3.

The input SVin of power-supply system is three-phase mains input, exports the direct voltage into 150V-550V.3 export along separate routes PB1, PB2, PB3 and are two-wire and positive negative output, are connected respectively to 3 charging guns, and can be used for is the battery charging of three electric automobiles simultaneously.

The communication interface of power module unit (PMU) is CAN interface, and communication bus (SComBus) is RS485 bus, system control unit be also RS485 interface to lower communication interface (SCComPort).

Handover module unit (QMU) as shown in Figure 4, comprises an input interface (QMVinPort), 3 output interfaces (QMVo1, QMVo2, QMVo3) and control interface (QMctrPort).Handover module unit (QMU) inside comprises 3 relays, is connected between input interface (QMVinPort) and 3 output interfaces (QMVo1, QMVo2, QMVo3).

The communication identification unit (ComIDU) that communications processor element (COMU) comprises as shown in Figure 5, for arranging the identification mark of communications processor element (COMU), and be converted into the RS485 mailing address communicated with system control unit (SCU) after communications processor element (COMU) reads.

10 power module unit (PMU) are divided into 5 power module unit basis groups (PMUZ), each power module unit basis group (PMUZ) comprises 2 power module unit (PMU), the corresponding communication identification unit (ComIDU) of each power module unit (PMU).

Each power module unit (PMU) is Modular electrical source converter, shape is cuboid, as shown in Figure 7, dead astern has input attachment plug as input interface (PMVinPort), exports attachment plug as output interface (PMVoPort), control connection plug as control interface (PMCtrPort), realize three-phase mains Input transformation being that 200-550V direct current exports, maximum output current 15A.Control connection plug comprises communication contact pin as communication interface (PMComPort), and identification signal contact pin is as recognition interface (PMIDPort).Power-supply system also comprises frame, Modular electrical source converter is arranged in frame, in frame with the input attachment plug of Modular electrical source converter, export attachment plug, position that control connection plug is corresponding is provided with corresponding input gang socket, export gang socket, control connection socket, this Modular electrical source converter can in frame warm swap.

1# and 2# power module unit (PMU) input port (PMVinPort) is connected to the input SVin of power-supply system by the input gang socket in frame, and output port (PMVoPort) is connected to the input port (QMVinPort) of 1# handover module (QMU) by the output gang socket in frame.The output interface 1 (QMVo1) of 1# handover module unit (QMU) is connected to the 1st and exports PB1 along separate routes, output interface 2 (QMVo2) is connected to the 2nd and exports PB2 along separate routes, and output interface 3 (QMVo3) is connected to the 3rd and exports PB3 along separate routes.

3# and 4# power module unit (PMU) input port (PMVinPort) is connected to the input SVin of power-supply system by the input gang socket in frame, and output port (PMVoPort) is connected to the input port (QMVinPort) of 2# handover module (QMU) by the output gang socket in frame.The output interface 1 (QMVo1) of 2# handover module unit (QMU) is connected to the 1st and exports PB1 along separate routes, output interface 2 (QMVo2) is connected to the 2nd and exports PB2 along separate routes, and output interface 3 (QMVo3) is connected to the 3rd and exports PB3 along separate routes.

By that analogy, the connected mode of 5-8# power module unit (PMU) and 3-4# handover module unit (QMU) is not drawn in Fig. 6, connected mode all fours, 5# and 6# power module unit (PMU) corresponding 3# handover module unit (QMU), 7# and 8# power module unit (PMU) corresponding 4# handover module unit (QMU).9# and 10# power module unit (PMU) input port (PMVinPort) is connected to the input SVin of power-supply system by the input gang socket in frame, and output port (PMVoPort) is connected to the input port (QMVinPort) of 5# handover module (QMU) by the output gang socket in frame.The output interface 1 (QMVo1) of 5# handover module unit (QMU) is connected to the 1st and exports PB1 along separate routes, output interface 2 (QMVo2) is connected to the 2nd and exports PB2 along separate routes, and output interface 3 (QMVo3) is connected to the 3rd and exports PB3 along separate routes.

Before system worked well, by communication identification unit (ComIDU), the RS485 mailing address of 1# communications processor element (COMU) is set to 1, the RS485 mailing address of 2# communications processor element (COMU) is set to 2, by that analogy, the RS485 mailing address of 5# communications processor element (COMU) is set to 5.This information is arranged in system control unit (SCU) before system worked well, can be directly fixed in system control unit (SCU) program, and the interface also can passing through system control unit (SCU) is arranged.1st power module unit basis group (PMUZ) corresponding 1# handover module unit (QMU), 2nd power module unit basis group (PMUZ) corresponding 2# handover module unit (QMU), by that analogy, 5th power module unit basis group (PMUZ) corresponding 5# handover module unit (QMU), this information is also arranged in system control unit (SCU) before system worked well.

During power-supply system work, export requirement dynamic assignment power module unit basis group (PMUZ) along separate routes to each output along separate routes according to each.Such as the 1st exports PB1 along separate routes needs 100A electric current, maximum output voltage 500V, 2nd exports PB2 along separate routes needs 30A electric current, maximum output voltage 510V, 3rd exports PB3 does not along separate routes need electric current, because the total current of each power module unit basis group (PMUZ) is 30A, 1st exports PB1 along separate routes needs 4 power module unit basis groups (PMUZ), 2nd exports PB2 along separate routes needs 1 power module unit basis group (PMUZ), and the 3rd exports PB3 does not along separate routes need electric current.System control unit (SCU) divides the 1st to the 4th power module unit basis group (PMUZ) in the 1st coupling group (PT), 5th power module unit basis group (PMUZ) is divided in the 2nd coupling group, the corresponding 1st exports PB1 and the 2nd output PB2 along separate routes along separate routes respectively.According to 1#, 2# power module unit (PMU) communicates with 1# communications processor element (COMU), 3#, 4# power module unit (PMU) communicates with 2# communications processor element (COMU), 5#, 6# power module unit (PMU) communicates with 2# communications processor element (COMU), 7#, 8# power module unit (PMU) communicates with 4# communications processor element (COMU), 9#, the relation that 10# power module unit (PMU) communicates with 5# communications processor element (COMU), the power module unit (PMU) that system control unit (SCU) can obtain 1-8# corresponds to the 1st output along separate routes, 9#, the power module unit (PMU) of 10# corresponds to the 2nd and exports along separate routes.System control unit (SCU) sends to mailing address to be the communications processor element (COMU) of 1-4 by RS485 bus the control information of maximum output voltage 500V, output current 12.5A (iOOA electric current is shared by 8 power module unit (PMU)), the control information of maximum output voltage 510v, output current 15A by RS485 bus send to mailing address be 5 communications processor element (COMU), communications processor element sends to control information the power module unit (PMU) communicated with it further.In addition, system control unit (SCU) is by switching controls bus QCBus, the control information being switched to output interface 1 is sent to 1-4# handover module unit (QMU), the control information being switched to output interface 2 is sent to 5# handover module unit (QMU).Like this, power-supply system achieves the requirement being dynamically assigned to by power module unit (PMU) and exporting shunt.System control unit (SCU) can be determined according to control overflow the order that power module unit (PMU) and handover module unit (QMU) send control information.

As can be seen from the 5th embodiment, the solution of the present invention dynamically can be assigned to the output of needs along separate routes each power module unit basis group (PMUZ), utilizes the fan-out capability of power-supply system efficiently.

The block diagram of sixth embodiment of the invention is identical with Fig. 6, be with the 5th embodiment difference, the control interface (QMctrPort) of handover module unit (QMU), the switching controls interface (SCQMCPort) of system control unit (SCU) are RS485 communication interface, and switching controls bus QCBus is RS485 bus.In this programme, the numbering of handover module unit (QMU) is communicated with address corresponding, make system control unit (SCU) control the switching of handover module unit (QMU) according to mailing address.After handover module unit (QMU) receives control information, convert thereof into the control signal of corresponding controlled diverter switch.As a special case of this programme, communication bus SComBus and switching controls QCBus can be merged into a RS485 communication bus.

Claims

1. the structure of multiple-output electric power system and a control method, the input source of described multiple-output electric power system is single-phase alternating current or three-phase alternating current or direct current, exports as alternating current or direct current, it is characterized in that:

The input interface (PMVinPort) of described power module unit (PMU) is connected to the input SVin of system, the output interface (PMVoPort) of the power module unit (PMU) of same power module unit basis group (PMUZ) is all connected to the input interface (QMVinPort) of corresponding handover module unit (QMU), communication interface (PMComPort) in the control interface (PMCtrPort) of the power module unit (PMU) of same power module unit basis group (PMUZ) be connected to communications processor element (COMU) corresponding to this power module unit basis group (PMUZ) to lower communication interface (COMLPort), described communications processor element (COMU) to upper communication interface (COMHPort) by communication bus (SComBus) be connected to system control unit (SCU) to lower communication interface (SCComPort), N number of output interface (QMVoS) of described handover module unit (QMU) is connected to the N group output of system along separate routes (PBS) respectively correspondingly, namely output interface i (QMVo1) is connected to the 1st and exports shunt (PB1), output interface 2 (QMVo2) is connected to the 2nd and exports along separate routes (PB2), by that analogy, output interface N (QMVoN) is connected to N and exports along separate routes (PBN), the control interface (QMctrPort) of described handover module unit (QMU) is connected to the switching controls interface (SCQMCPort) of system control unit (SCU) by switching controls bus (QCBus),

2. the structure of multiple-output electric power system as claimed in claim 1 and control method, is characterized in that: the input source of described multiple-output electric power system is alternating current, export as direct current;

Communication interface (PMComPort) in the control interface (PMCtrPort) of described power module unit (PMU) and communications processor element (COMU) be CAN communication interface to lower communication interface (COMLPort), communications processor element (COMU) be RS485 communication interface to upper communication interface (COMHPort) and system control unit (SCU) to lower communication interface (SCComPort).

3. the structure of multiple-output electric power system as claimed in claim 2 and control method, is characterized in that: the quantity of the power module unit (PMU) having at least the power module unit basis group (PMUZ) described in comprise is greater than 1.

4. a power-supply system for multiple-channel output, the input source of described multiple-output electric power system is single-phase alternating current or three-phase alternating current or direct current, exports as alternating current or direct current, it is characterized in that:

5. multiple-output electric power system as claimed in claim 4, the input source of described multiple-output electric power system is single-phase alternating current or three-phase alternating current or direct current, export as direct current, it is characterized in that: described multiple-output electric power system also comprises frame, described power module unit (PMU) is Modular electrical source converter, is arranged in frame; The input interface (PMVinPort) of described power module unit (PMU), output interface (PMVoPort), control interface (PMCtrPort) are attachment plug or socket, the correspondence position of frame installs the attachment plug of corresponding Modular electrical source converter or socket to the gang socket of inserting or plug, make Modular electrical source converter have Hot Plug Capability, described communications processor element (COMU) is separated with described Modular electrical source converter and is arranged in frame.

6. the multiple-output electric power system as described in claim 4 or 5, it is characterized in that: the communication interface (PMComPort) in the control interface (PMCtrPort) of described power module unit (PMU) and communications processor element (COMU) be CAN communication interface to lower communication interface (COMLPort), communications processor element (COMU) be RS485 communication interface to upper communication interface (COMHPort) and system control unit (SCU) to lower communication interface (SCComPort), described communications processor element (COMU) comprises microprocessor or DSP, microprocessor or DSP comprise two communication interfaces, 1 is RS485 interface, one is CAN interface, the identifier ID of the communication identification unit (ComIDU) that described communications processor element (COMU) comprises is RS485 mailing address.

7. multiple-output electric power system as claimed in claim 6, it is characterized in that: the quantity of the described power module unit (PMU) included by K power module unit basis group (PMUZ) is 1 or 2, and the quantity of the power module unit (PMU) having at least a power module unit basis group (PMUZ) to comprise is 2.

8. multiple-output electric power system as claimed in claim 6, is characterized in that: the input source of described multiple-output electric power system is alternating current, exports as direct current, and described N group exports shunt (PBS) for the independently battery charging of N group.

9. multiple-output electric power system as claimed in claim 5, is characterized in that: the control interface (QMctrPort) of described handover module unit (QMU), the switching controls interface (SCQMCPort) of system control unit (SCU) are RS485 communication interface.

10. multiple-output electric power system as claimed in claim 8, is characterized in that: the quantity N of output shunt (PBS) of described power-supply system is 2.