阅读说明：本技术 一种集成在车辆传动系统中发电装置的电力处理系统 (Power processing system integrated with power generation device in vehicle transmission system ) 是由 张英锋 王洪飞 于 2020-06-10 设计创作，主要内容包括：本发明公开了一种集成在车辆传动系统中发电装置的电力处理系统,包括：电力调控系统；电力输出系统,电力输出系统与电力调控系统相连；电压调配系统,包括可控整流器、电压平衡控制装置以及电力蓄能装置,可控整流器与电力输出系统相连,可控整流器分别与电压平衡控制装置以及电力蓄能装置相连,电力蓄能装置与电压平衡控制装置相连,电压平衡控制装置与电力调控系统相连；电压使用系统,包括转换控制装置以及电压反馈单元,转换控制装置与电压平衡控制装置相连,转换控制装置输出端与电压反馈单元相连,电压反馈单元通过反馈信号线与转换控制装置相连。本发明在驻车/行车发电状态下,实现发电机输出电力指标稳定,保证外部用电设备的可靠工作。(The invention discloses a power processing system of a power generation device integrated in a vehicle transmission system, which comprises: an electric power regulation system; the power output system is connected with the power regulation and control system; the voltage allocation system comprises a controllable rectifier, a voltage balance control device and an electric energy storage device, wherein the controllable rectifier is connected with the electric output system, the controllable rectifier is respectively connected with the voltage balance control device and the electric energy storage device, the electric energy storage device is connected with the voltage balance control device, and the voltage balance control device is connected with the electric power regulation system; the voltage using system comprises a conversion control device and a voltage feedback unit, wherein the conversion control device is connected with a voltage balance control device, the output end of the conversion control device is connected with the voltage feedback unit, and the voltage feedback unit is connected with the conversion control device through a feedback signal wire. The invention realizes the stable output power index of the generator in the parking/driving power generation state and ensures the reliable work of the external power utilization equipment.)

1. An electrical power processing system integrated with a power generation device in a vehicle driveline, comprising:

an electric power regulation system (1);

the power output system (2), the power output system (2) is connected with the power regulation and control system (1);

the voltage allocation system (3) comprises a controllable rectifier (31), a voltage balance control device (32) and an electric energy storage device (33), the controllable rectifier (31) is connected with the electric power output system (2), the controllable rectifier (31) is respectively connected with the voltage balance control device (32) and the electric energy storage device (33), the electric energy storage device (33) is connected with the voltage balance control device (32), and the voltage balance control device (32) is connected with the electric power regulation and control system (1);

the voltage using system (4) comprises a conversion control device (41) and a voltage feedback unit (42), wherein the conversion control device (41) is connected with a voltage balance control device (32), the output end of the conversion control device (41) is connected with the voltage feedback unit (42), and the voltage feedback unit (42) is connected with the conversion control device (41) through a feedback signal line.

2. The power processing system of a power generating apparatus integrated in a vehicle drive system according to claim 1, wherein the conversion control means (41) includes a DC-AC conversion control means (411) and a DC-DC conversion control means (412), and the voltage balance control means (32) is connected to the DC-AC conversion control means (411) and the DC-DC conversion control means (412), respectively.

3. The power processing system of a power generation device integrated in a vehicle drive train according to claim 2, characterized in that the voltage feedback unit (42) comprises an alternating voltage feedback unit (421) and a direct voltage feedback unit (422); the output end of the DC-AC conversion control device (411) is connected with an alternating voltage feedback unit (421), and the alternating voltage feedback unit (421) is connected with the DC-AC conversion control device (411) through a feedback signal line; the output end of the DC-DC conversion control device (412) is connected with a direct current voltage feedback unit (422), and the direct current voltage feedback unit (422) is connected with the DC-DC conversion control device (412) through a feedback signal line.

4. The power processing system of a power generation device integrated in a vehicle drive system according to claim 1, wherein the power conditioning system (1) includes a power generation controller (11), a relay (12), and an engine ECU (13) connected, the power generation controller (11) is connected to the voltage balance control device (32), and the engine ECU (13) is connected to the power output system (2).

5. The power processing system of a power generation device integrated in a vehicle driveline as claimed in claim 4, characterized in that the power conditioning system (1) further comprises a battery (14), the battery (14) being connected to the power generation controller (11).

6. The power processing system of a power generation device integrated in a vehicle drive system according to claim 1, characterized in that the power output system (2) includes an engine (21) and an electric machine (22) connected, the engine (21) being connected to the engine ECU (13), and the electric machine (22) being connected to the controllable rectifier (31).

Technical Field

The invention relates to the technical field of vehicle transmission, in particular to a power processing system of a power generation device integrated in a vehicle transmission system.

Background

With the development of science and technology, the power guarantee problem is one of the problems that various devices must solve, and especially in the field environment, power supply is particularly important.

The engine of the existing movable power station or vehicle-mounted power station is independent, namely, one engine is independently adopted to drive the motor, so that the power output is realized. In the working process, in order to ensure the power quality, the rotating speed of the engine is fixed, and when the load of the external electric equipment is changed, the purpose of changing the output power is achieved only through the change of the output torque.

The parking/driving power generation vehicle is used as a novel power generation system, and can solve the problem of poor mobility of the existing power generation system. However, since there is a significant difference in engine characteristics between the vehicle and the mobile power station, on the one hand, the output power index changes due to a change in the engine speed of the vehicle; on the other hand, the sudden change of the external electric equipment load causes the output power index of the generator to change, and the output power quality is deteriorated. How to effectively process the output power of the generator to meet the requirement of external electric equipment is a technical difficulty of a parking/driving power generation system.

In view of this, a set of power processing system suitable for parking/driving power generation needs to be designed to ensure that the output power of the generator is stable and the external power utilization equipment can work reliably.

Disclosure of Invention

In order to solve the problems, the invention provides an electric power processing system of a power generation device integrated in a vehicle transmission system, which realizes the stability of the output electric power index of a generator and ensures the reliable work of external electric equipment in a parking/driving power generation state.

In order to achieve the above object, the power processing system of the power generation device integrated in the vehicle transmission system of the present invention comprises:

an electrical power processing system integrated with a power generation device in a vehicle driveline, comprising:

an electric power regulation system;

the power output system is connected with the power regulation and control system;

the voltage allocation system comprises a controllable rectifier, a voltage balance control device and an electric energy storage device, wherein the controllable rectifier is connected with the electric output system, the controllable rectifier is respectively connected with the voltage balance control device and the electric energy storage device, the electric energy storage device is connected with the voltage balance control device, and the voltage balance control device is connected with the electric power regulation system;

the voltage using system comprises a conversion control device and a voltage feedback unit, wherein the conversion control device is connected with a voltage balance control device, the output end of the conversion control device is connected with the voltage feedback unit, and the voltage feedback unit is connected with the conversion control device through a feedback signal wire.

Further, the conversion control device comprises a DC-AC conversion control device and a DC-DC conversion control device, and the voltage balance control device is respectively connected with the DC-AC conversion control device and the DC-DC conversion control device.

Further, the voltage feedback unit comprises an alternating current voltage feedback unit and a direct current voltage feedback unit; the output end of the DC-AC conversion control device is connected with an alternating voltage feedback unit, and the alternating voltage feedback unit is connected with the DC-AC conversion control device through a feedback signal line; the output end of the DC-DC conversion control device is connected with the direct-current voltage feedback unit, and the direct-current voltage feedback unit is connected with the DC-DC conversion control device through a feedback signal line.

Further, the electric power regulation and control system comprises a power generation controller, a relay and an engine ECU which are connected, wherein the power generation controller is connected with the voltage balance control device, and the engine ECU is connected with the electric power output system.

Further, the electric power regulation and control system also comprises a storage battery, and the storage battery is connected with the power generation controller.

Further, the power output system comprises an engine and a motor which are connected, wherein the engine is connected with the engine ECU, and the motor is connected with the controllable rectifier.

The power processing system of the power generation device integrated in the vehicle transmission system has the advantages that:

(1) the invention adopts the power compensation and balance control strategy, effectively ensures the voltage stability and ensures the safety of the vehicle-mounted and external electric equipment.

(2) The invention adopts the power balance and feedback control strategy, can greatly improve the steady-state and transient response characteristics of output power, and provides possibility for power guarantee for high-precision equipment.

(3) The power regulating system provided by the invention can obviously improve the quality characteristic of output power and improve the reliability of a parking/driving power generation system.

(4) The power regulating system is designed for the power generation process of the vehicle engine, and can provide key technical support for realizing parking/driving power generation integrated control of the vehicle.

Drawings

FIG. 1 is a schematic diagram of an electrical power processing system according to the present invention.

In the figure: 1-a power regulation system; 11-a power generation controller; 12-a relay; 13-an engine ECU; 14-a storage battery; 2-a power output system; 21-an engine; 22-a motor; 3-voltage regulation system; 31-a controllable rectifier; 32-voltage balance control means; 33-electric energy storage means; 4-voltage use system; 41-switching control means; 411-DC-AC conversion control means; 412-DC conversion control means; 42-a voltage feedback unit; 421-alternating voltage feedback unit; 422-direct current voltage feedback unit.

Detailed Description

For a better understanding of the objects, structure and function of the invention, a power processing system of the invention integrated in a power generation device of a vehicle drive train will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, it shows a power processing system of a power generation device integrated in a vehicle transmission system of the present invention, which includes a power conditioning system 1, a power output system 2, a voltage regulation system 3 and a voltage using system 4; the power regulation and control system 1, the power output system 2 and the voltage regulation and control system 3 are connected in a feedback closed loop, and the voltage use system 4 is connected with the voltage regulation and control system 3 in a feedback mode.

Further, the power conditioning system 1 includes a power generation controller 11, a relay 12, an engine ECU13 (engine electronic control unit), and a battery 14.

Further, the power output system 2 includes an engine 21 and a motor 22.

Further, the voltage regulation system 3 includes a controllable rectifier 31, a voltage balance control device 32, and an electric energy storage device 33.

Further, the voltage using system 4 includes a conversion control device 41 and a voltage feedback unit 42. The conversion control device 41 includes a DC-AC conversion control device 411 (DC-AC conversion control device) and a DC-DC conversion control device 412 (DC-DC conversion control device), and the voltage feedback unit 42 includes an AC voltage feedback unit 421 and a DC voltage feedback unit 422.

As shown in figure 1: the engine 21 is connected with the motor 22, and the motor 22 is driven by the engine 21 to generate electricity; the electric power generated by the motor 22 is input to the controllable rectifier 31 via the power cable; the electric power output from the controllable rectifier 31 is input to the electric power storage device 33 and the voltage balance control device 32 via cables, respectively, and the electric power storage device 33 is also connected to the voltage balance control device 32 via cables.

The electric power output by the voltage balance control device 32 is input to the DC-DC conversion control device 412 and the DC-AC conversion control device 411, respectively; the parking/driving power generation controller 11 acquires an electric power voltage signal output to the voltage balance control device 32 by the controllable rectifier 31 through a voltage feedback signal line; the DC voltage output by the DC-DC conversion control device 412 is collected by the DC voltage feedback unit 422 and fed back to the DC-DC conversion control device 412 for regulation and control to maintain the stability of the output DC voltage; the 220V/380V AC voltage output by the DC-AC conversion control device 411 is collected by the AC voltage feedback unit 421 and fed back to the DC-AC conversion control device 411 for regulation and control, so as to maintain the stability of the output AC voltage.

The parking/driving power generation controller 11 is connected with the relay 12 through an electronic accelerator A and an electronic accelerator B, and the parking/driving power generation controller 11 controls the relay 12 through a relay control circuit; the relay 12 is connected with the engine ECU13 through an electronic throttle circuit; the engine ECU13 controls the engine 21 through a control line; further, the battery 14 supplies electric power to the parking/driving power generation controller 11.

The specific working process is as follows:

(1) the motor 21 drives the motor 22 to generate electric power, the electric power is input into the controllable rectifier 31 through a power cable for rectification, the rectified output electric power is divided into two paths, one path is input into the electric power energy storage device 33 for electric power storage, and the other path is input into the voltage balance control device 32. The voltage balance control device 32 is provided with a voltage sensor for continuously measuring the power voltage from the controllable rectifier 31, and transmits a voltage feedback signal to the parking/driving power generation controller 11 through a voltage feedback signal line. The parking/driving power generation controller 11 adjusts the rotation speed of the engine 21 according to the voltage feedback signal, thereby stabilizing the output voltage of the controlled rectifier 31.

(3) The electric power storage device 33 is also connected to the voltage balance control device 32 through a cable, and the electric power is unidirectionally input from the electric power storage device 33 to the voltage balance control device 32.

(4) The power output from the voltage balance control device 32 is divided into two paths, one path is input into the DC-DC conversion control device 412 and converted into the required direct current to supply power to the external power load, meanwhile, the direct current voltage feedback unit 422 feeds the output direct current voltage back to the DC-DC conversion control device 412, and the DC-DC conversion control device 412 maintains the output voltage stable through an internal control strategy to control the output direct current voltage to be stable. The other path is input into the DC-AC conversion control device 411, and is converted into the required AC power to supply power to the external electric load, the AC voltage feedback unit 421 feeds the output AC voltage back to the DC-AC conversion control device 411, and the DC-AC conversion control device 411 maintains the output voltage stable through an internal control strategy to control the output AC voltage to be stable.

The vehicle power generation control process is divided into two modes, wherein one mode is a parking power generation control mode, and the other mode is a driving power generation control mode.

Parking power generation control mode

During the parking electricity generation, the operating personnel puts the vehicle in the parking state to press "parking electricity generation" start button, this signal passes through the circuit and transmits parking/driving electricity generation controller 11, gets into parking electricity generation control mode:

(1) the parking/driving power generation controller 11 controls the rotation speed of the engine 21 by sending an electronic throttle signal to the engine ECU 13.

(2) When the power of an external electric load (an alternating current load or a direct current load) is constant or zero during parking power generation, the output voltage maintains a stable state.

(3) When the external electric load AC load or DC load suddenly increases, the voltage at the AC output end or DC output end suddenly decreases, the voltage at the output end is fed back to the DC-AC conversion control device 411 or DC-DC conversion control device 412 by the AC voltage feedback unit 421 or DC voltage feedback unit 422 respectively, and the DC-AC conversion control device 411 or DC-DC conversion control device 412 maintains the output voltage stable through the internal control strategy. The voltage output by the voltage balance control device 32 is pulled down during the regulation process, and in a steady state, the power output by the voltage balance control device 32 mainly comes from the controllable rectifier 31. At this time, since the voltage output from the voltage balance control device 32 suddenly decreases, the output voltage of the controllable rectifier 31 decreases accordingly, and the voltage balance control device 32 controls the power storage device 33 to perform power compensation so as to increase the power voltage input to the DC-AC conversion control device 411 or the DC-DC conversion control device 412.

Meanwhile, the output voltage of the controllable rectifier 31 is transmitted to the parking/driving power generation controller 11 through a voltage feedback signal, and the parking/driving power generation controller 11 outputs an electronic throttle signal according to a control strategy to increase the rotation speed of the engine so as to increase the output voltage and power of the motor. The voltage balance control device 32 controls the power compensation of the power storage device 33 according to the voltage from the controllable rectifier 31 to maintain the output voltage stable.

Through the feedback closed-loop control of the parking/driving power generation controller 11, the voltage balance control device 32, the controllable rectifier 31 and other components, when the electric power compensation of the electric power energy storage device 33 is 0, and the output voltage of the voltage balance control device 32 reaches a set value and is maintained stable, the output voltage is stable and balanced.

When the external electrical load AC load or DC load suddenly decreases, the voltage at the AC output end or DC output end suddenly increases, the voltage at the output end is fed back to the DC-AC conversion control device 411 or DC-DC conversion control device 412 by the AC voltage feedback unit 421 or DC voltage feedback unit 422, and the DC-AC conversion control device 411 or DC-DC conversion control device 412 maintains the output voltage stable through an internal control strategy. The voltage from the voltage balance control device 32 is increased during the adjustment process, and at this time, the voltage balance control device 32 automatically adjusts the output voltage to drop and keep stable, and the output voltage of the controllable rectifier 31 is increased, and the voltage signal is transmitted to the parking/driving power generation controller 11 through the voltage feedback signal line. The parking/driving power generation controller 11 outputs an electronic throttle signal according to a control strategy, and reduces the rotating speed of the engine so as to reduce the output voltage and power of the motor. Through the feedback control and regulation of the parking/driving power generation controller 11, the controllable rectifier 31, the voltage balance control device 32 and other components, when the output voltage of the voltage balance control device 32 reaches a set value and is maintained stable, the output voltage is stable and balanced.

(II) driving power generation control mode

In the driving process, the control button is arranged at a driving power generation position, the signal is transmitted to the parking/driving power generation controller 11 through a circuit, and a driving power generation mode is entered. The driving power generation control mode is an adaptive mode and mainly provides electric power for the vehicle-mounted equipment, so that the electric power consumption of the equipment is basically stable and does not change greatly in the driving power generation process. The specific process is as follows:

(1) during driving, the parking/driving power generation controller 11 cuts off a hardware path for transmitting the electronic accelerator to the engine 21, thereby preventing interference.

(2) The controllable rectifier 31 rectifies the electric power from the motor 22 and outputs the rectified electric power, the output electric power is divided into two paths, one path is input to the electric power storage device 33 for electric power storage, and the other path is input to the voltage balance control device 32.

(3) The electric power output from the voltage balance control device 32 is divided into two paths, and one path is input to the DC-DC conversion control device 412, and is converted into the required direct current to supply power to the vehicle-mounted direct current electric equipment. The DC voltage feedback unit 422 feeds the output voltage of the DC-DC conversion control device back to the DC-DC conversion control device 412 for regulation and control, so as to control the output DC voltage to be stable. The other path is input to a DC-AC conversion control device 411, and is converted into a required AC power to supply power to the vehicle-mounted AC electric equipment. The AC voltage feedback unit 421 feeds back the output voltage of the DC-AC conversion control device 411 to the DC-AC conversion control device 411 for regulation and control, so as to control the output AC voltage to be stable.

(4) The change of the rotation speed of the engine 21 is large during driving, so that the change range of the output voltage of the motor 22 is large. There are two situations, one is that the output voltage of the motor 22 exceeds the normal value, and the voltage limiting adjustment is mainly performed through the controllable rectifier 31, so that the output voltage meets the subsequent adjustment requirement. The other is that the output voltage of the motor 22 is reduced, and on the basis of the adjustment of the controllable rectifier 31, the subsequent power processing requirements cannot be met, at this time, the voltage balance control device 32 controls the power energy storage device 33 to perform power compensation so as to meet the input voltage requirements of the DC-DC conversion control device 412 and the DC-AC conversion control device 411 and ensure the normal operation of the vehicle-mounted electric equipment.

The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.