CN209111978U - A kind of energy distribution control system of fuel cell car hybrid power - Google Patents

Abstract

It is disclosed by the utility model to belong to fuel electric vehicle engineering field, the energy of specially a kind of fuel cell car hybrid power distributes control system, including controller, the controller electrically inputs connection control policy module respectively, sensor module and capacitor sensor for residual amount and remaining battery quantity sensor, electrically output connects storage cell control module to the controller respectively, Fuel Cell Control module, fuel cell charge and discharge switch and super capacitor control module, the energy of this kind of fuel cell car hybrid power distributes control system, design is reasonable, it is practical, make the output power of fuel cell as close as possible to the best operating point of fuel cell in fuel cell+power battery+super capacitor system, according to the optimization algorithm of fuel consumption minimization principle, under rule framework, fluctuate the remaining capacity of battery and capacitor Amplitude mutually becomes smaller than before, withdraws energy completely, high-efficient, reduces energy dissipation.

Description

A kind of energy distribution control system of fuel cell car hybrid power

Technical field

The utility model relates to fuel electric vehicle engineering field, specially a kind of energy of fuel cell car hybrid power Amount distribution control system.

Background technique

Fuel cell car environmental protection and it is efficient the features such as have been considered to be a kind of new traffic tool having a high potential, Multiple energy offer source, such as battery and super capacitor are used with dynamic property in order to improve efficiency, has become new energy A kind of scheme powered by conventional energy of automobile, in actual travel, the operation of fuel cell car is not a stable situation, frequently Acceleration of starting and climbing so that the output characteristics of the extremely complex fuel cell system of automobile dynamic operation condition is partially soft, dynamic response It is relatively slow, starting, it is anxious to accelerate or when climb very steep slopes, the output characteristics of fuel cell is unable to satisfy the driving requirements of vehicle, in reality On fuel cell car, it is often necessary to using the design method of fuel cell hybrid-electric car, that is, supplementary energy device is introduced, For providing peak power to supplement the deficiency of vehicle fuel cell output power ability in acceleration or climbing, on the other hand, In fuel cell car vehicle braking, that is, under low speed or decelerating mode, when the power of fuel cell is greater than driving power, The energy that the storage of supplementary energy device assigns, or in regenerative braking, supplementary energy device absorbs storage braking energy, to mention The energy efficiency of high entire dynamical system, but when the more operating condition downward driving fuel cell of descending is more, auxiliary energy Source electricity overfill, energy regenerating is incomplete, and efficiency is too low, causes energy dissipation.

Utility model content

The purpose of this utility model is to provide a kind of energy of fuel cell car hybrid power to distribute control system, with Fuel electric car mentioned above in the background art is solved when the more operating condition downward driving fuel cell of descending is more, it is auxiliary Energy source electricity overfill is helped, energy regenerating is incomplete, and efficiency is too low, causes energy waste problem.

To achieve the above object, the utility model provides the following technical solutions: a kind of fuel cell car hybrid power Energy distributes control system, including controller, and the controller electrically inputs connection control policy module, sensor module respectively With capacitor sensor for residual amount and remaining battery quantity sensor, electrically output connection battery controls mould to the controller respectively Block, Fuel Cell Control module, fuel cell charge and discharge switch and super capacitor control module, the storage cell control module are electrical Output connection battery switch, electrically output connects battery to the battery switch, and electrically output connects the battery respectively Remaining battery quantity sensor and inverter are connect, electrically output connection alternating current generator, the alternating current generator are electrically defeated for the inverter Sensor module is connected out, and the Fuel Cell Control module electrically open by output connection fuel cell switch, the fuel cell Powered-down property output connection fuel cell, electrically input connects fuel cell charge and discharge switch, the fuel cell to the fuel cell Electrically output connection battery, the first dc chopper and super capacitor, the first dc chopper electrical property output connect respectively Inverter is connect, electrically output connects the second dc chopper and capacitor sensor for residual amount to the super capacitor respectively, described super Electrically input connects super capacitor switch to grade capacitor, and electrically input connects super capacitor control module to the super capacitor switch.

Preferably, the control strategy module is by rule-based module and optimization algorithm module, the rule-based module Electrically output connection optimization algorithm module, the optimization algorithm module electrically export connection controller.

Preferably, the sensor module includes power sensor and algorithm sensor, the power sensor and algorithm Electrically input connection alternating current generator, the power sensor and algorithm sensor electrically export connection controller to sensor.

Compared with prior art, the utility model has the beneficial effects that the energy of this kind of fuel cell car hybrid power Control system is distributed, design is rationally, practical, makes fuel cell in fuel cell+power battery+super capacitor system Output power as close as possible to fuel cell best operating point, according to the optimization algorithm of fuel consumption minimization principle, in rule Under frame, the remaining capacity fluctuating range of battery and capacitor is made mutually to become smaller than before, withdraws energy completely, it is high-efficient, it reduces Energy dissipation.

Detailed description of the invention

Fig. 1 is Tthe utility model system functional block diagram；

Fig. 2 is the utility model control strategy modular system block diagram；

Fig. 3 is the utility model sensor module system block diagram.

In figure: 1 controller, 2 control strategy modules, 3 sensor modules, 4 capacitor sensor for residual amount, 5 residual capacity of battery Sensor, 6 storage cell control modules, 7 Fuel Cell Control modules, 8 fuel cell charge and discharges switch, 9 super capacitor control modules, 10 battery switches, 11 batteries, 12 inverters, 13 alternating current generators, 14 fuel cells switch, 15 fuel cells, 16 first are directly Flow chopper, 17 super capacitors, 18 super capacitors switch, 19 second dc choppers, 20 rule-based modules, 21 optimization algorithms Module, 22 power sensors, 23 voltage sensors.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of energy of fuel cell car hybrid power Control system, including controller 1 are distributed, the controller 1 electrically inputs connection control policy module 2, sensor module 3 respectively With capacitor sensor for residual amount 4 and remaining battery quantity sensor 5, the control strategy module 2 is by rule-based module 20 and excellent Change algoritic module 21, electrically output connects optimization algorithm module 21, the optimization algorithm module 21 to the rule-based module 20 Electrically output connection controller 1, the sensor module 3 include power sensor 22 and algorithm sensor 23, and the power passes Electrically input connection alternating current generator 13, the power sensor 22 and algorithm sensor 23 are equal for sensor 22 and algorithm sensor 23 Electrically output connection controller 1, the difference of controller 1 electrical output the connection storage cell control module 6, Fuel Cell Control mould Block 7, fuel cell charge and discharge switch 8 and super capacitor control module 9, the storage cell control module 6 electrically output connection electric power storage Pond switch 10, electrically output connects battery 11 to the battery switch 10, and electrically output connection is electric respectively for the battery 11 Pond sensor for residual amount 5 and inverter 12, electrically output connection alternating current generator 13, the alternating current generator 13 are electric for the inverter 12 Property output connection sensor module 3, the electrical output connection fuel cell switch 14 of the Fuel Cell Control module 7, the combustion Expect the electrically output connection fuel cell 15 of cell switch 14, the electrical input connection fuel cell charge and discharge switch of the fuel cell 15 8, the fuel cell 15 electrically output connection battery 11, the first dc chopper 16 and super capacitor 17 respectively, described the Electrically output connects inverter 12, second DC chopped-wave of the electrical output connection of the difference of super capacitor 17 to one dc chopper 16 Device 19 and capacitor sensor for residual amount 4, the super capacitor electrically open by input connection super capacitor switch 18, the super capacitor It closes 18 and electrically inputs connection super capacitor control module 9.

First chopper 16 and the second chopper 19 with inverter 12 are used to the electric energy that energy source system is released be converted into The input AC electric energy of alternating current generator passes through dc chopper 16 or the second chopper by the output of one or several energy sources It using inverter 12 after 19., finally enters in alternating current generator 13, power requirement needed for completing vehicle axles, system control Mode is to first pass through rule-based module 20, to define the boundary of battery output power and battery remaining capacity, then is passed through The optimum output power that the algoritic module based on optimization algorithm calculates this situation is crossed, energy source is then controlled and carries out corresponding function Rate output services, hybrid power system for automobile driven by fuel cell energy rule for distribution control mode include battery control and it is super Capacity control two large divisions.Battery 11 control method particularly includes: when bus request output power be timing, need battery 11 discharge.At this time when demand power is greater than the output power of capacitor and 11 remaining capacity of battery is greater than the minimum value of setting When, battery 11 is opened, and is otherwise closed, when bus request output power is negative, battery 11 charges, and works as electric power storage at this time When 11 remaining capacity of pond is less than the maximum value of setting, battery 11 charges, and otherwise closes.Super capacitor 17 controls specific Method are as follows: when bus request output power be timing, need super capacitor 17 to discharge.At this time when the remaining electricity of super capacitor 17 When amount is greater than the minimum value of setting, 17 capacitor of super capacitor is opened, and is otherwise closed.When bus request output power is negative, surpass Grade capacitor 17 charges, at this time when 11 remaining capacity of battery is greater than the minimum value of setting, and 17 remaining capacity of super capacitor Less than setting maximum value when, super capacitor 17 open, otherwise close, hybrid power system for automobile driven by fuel cell energy distribution Optimization algorithm control mode is according to fuel consumption minimization principle, for 17 system of fuel cell 15+ battery 11+ super capacitor Construct objective function, the efficiency curve of 15 system of fuel cell, the efficiency for charge-discharge curve of battery 11, super capacitor 17 It can be concluded that the best operating point of fuel cell 15, under low-load operating condition, controller 1 controls fuel cell charge and discharge switch 8 and opens It opens, and then controls fuel cell 15 and charge to battery 11 or super capacitor 17, but since the average efficiency of battery 11 exists Between 70%-80%, the average efficiency of super capacitor 17 is between 95%-100%, if allowing the work of fuel cell 15 best Operating point, and the excess energy that most of fuel cell 15 exports is sponged by super capacitor 17, the then output work of whole system Rate will have and significantly be promoted, and the method has been embodied in rule-based module, and based on this consideration, this algorithm is in fuel Make the output power of fuel cell 15 as close as possible to combustion in the objective function of 17 system of battery 15+ battery 11+ super capacitor Expect the best operating point of battery 15.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (3)

1. a kind of energy of fuel cell car hybrid power distributes control system, including controller (1), it is characterised in that: institute It states controller (1) and electrically inputs connection control policy module (2), sensor module (3) and capacitor sensor for residual amount (4) respectively With remaining battery quantity sensor (5), electrically output connects storage cell control module (6), fuel cell to the controller (1) respectively Control module (7), fuel cell charge and discharge switch (8) and super capacitor control module (9), storage cell control module (6) electricity Property output connection battery switch (10), the battery switch (10) electrically output connection battery (11), the battery (11) electrically output connection remaining battery quantity sensor (5) and inverter (12), inverter (12) the electrical property output connect respectively It connects alternating current generator (13), the alternating current generator (13) electrically output connection sensor module (3), the Fuel Cell Control module (7) electrically output connection fuel cell switch (14), the fuel cell switch (14) electrically output connection fuel cell (15), Electrically input connection fuel cell charge and discharge switchs (8) to the fuel cell (15), the fuel cell (15) electrically output respectively Battery (11), the first dc chopper (16) and super capacitor (17) are connected, first dc chopper (16) is electrically defeated Inverter (12) are connected out, electrically output connection the second dc chopper (19) and capacitor are remaining respectively for the super capacitor (17) Quantity sensor (4), electrically input connection super capacitor switch (18), the super capacitor switch (18) electrically to the super capacitor Input connection super capacitor control module (9).

2. a kind of energy of fuel cell car hybrid power according to claim 1 distributes control system, feature exists In: the control strategy module (2) is by rule-based module (20) and optimization algorithm module (21), the rule-based module (20) electrically output connection optimization algorithm module (21), the optimization algorithm module (21) electrically output connection controller (1).

3. a kind of energy of fuel cell car hybrid power according to claim 1 distributes control system, feature exists Include power sensor (22) and algorithm sensor (23) in: the sensor module (3), the power sensor (22) and calculates Method sensor (23) electrically input connection alternating current generator (13), the power sensor (22) and algorithm sensor (23) electricity Property output connection controller (1).