CN112803847B - Distributed voltage regulation control system and method for generator - Google Patents
Distributed voltage regulation control system and method for generator Download PDFInfo
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- CN112803847B CN112803847B CN202110203050.XA CN202110203050A CN112803847B CN 112803847 B CN112803847 B CN 112803847B CN 202110203050 A CN202110203050 A CN 202110203050A CN 112803847 B CN112803847 B CN 112803847B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
Abstract
The present disclosure discloses a distributed voltage regulation control system for an aircraft generator, comprising: the signal acquisition module is used for acquiring a voltage signal of a load at an input end of the load; the signal transmission module is used for transmitting the acquired voltage signal to the voltage regulation controller; the voltage regulating controller is used for forming a voltage signal set by the acquired voltage signals; comparing each voltage signal in the voltage signal set with the lowest working voltage of the corresponding load; screening out a pressure regulating point based on the comparison; and performing magnetic field control on the aircraft generator based on the screened voltage regulating points so as to regulate the output voltage of the aircraft generator.
Description
Technical Field
The present application relates to generator voltage regulation control, and more particularly to generator voltage regulation control for aircraft.
Background
The generator voltage regulation point voltage is an important index of a power supply system. The voltage requirement of the voltage regulating point of the generator is too high, the output power of the generator is increased, the waste of energy is caused, and meanwhile, higher requirements are provided for the installed capacity of the generator; too low will require the circuit voltage in the grid design to be reduced to a lower level, increasing the design difficulty of the electrical system. Therefore, the reasonable voltage requirement of the voltage regulating point of the generator can optimize a power supply system.
The conventional airplane carries out voltage regulation control near the output end of a generator and conservatively estimates line voltage drop, so that the voltage setting point is usually higher to ensure the normal operation of equipment, and a large amount of equipment works under higher input voltage.
The airborne equipment is distributed at different positions of the whole aircraft, and due to the voltage division of the cable, the voltage of the equipment end is lower than the voltage of the voltage regulating point. For example, in the 115V power supply system, the voltage at POR end of the generator is usually required to be at least not lower than 113.5V, and the operating voltage requirement for the equipment in DO 160 is as follows: under the condition of not less than 101.5V, the equipment is required to work normally. Under such a control strategy, a large number of devices are operated at higher voltages, consuming more energy.
The high-power load of the airplane is mainly a resistive load and an electric machine load, the resistive load generally consumes more energy when the input voltage is larger, and the electric machine load is generally designed to have the highest output efficiency in the lowest normal operating voltage range in order to ensure the performance in the normal operating voltage range, and under the condition of higher voltage, more reactive power is generated, which causes great waste to the energy.
In order to effectively utilize aircraft power resources, a more efficient generator voltage regulation control system and method is needed.
Disclosure of Invention
According to the technical scheme, distributed and dynamic global accurate voltage regulation control is performed at the equipment end of the high-power load of each level of bus bar, so that the energy consumption of airborne equipment is reduced.
In an embodiment of the present disclosure, there is provided a distributed voltage regulation control system for an aircraft generator, comprising: the signal acquisition module is used for acquiring a voltage signal of a load at an input end of the load; the signal transmission module is used for transmitting the acquired voltage signal to the voltage regulation controller; the voltage regulating controller is used for forming a voltage signal set by the acquired voltage signals; comparing each voltage signal in the set of voltage signals with the lowest operating voltage of the corresponding load; screening out a pressure regulating point based on the comparison; and performing magnetic field control on the aircraft generator based on the screened voltage regulating points so as to regulate the output voltage of the aircraft generator.
In another embodiment of the present disclosure, the load is a high power load.
In yet another embodiment of the present disclosure, the high power load is an electromechanical load and a resistive load.
In yet another embodiment of the present disclosure, the high power load is a resistive load.
In another embodiment of the present disclosure, the signal acquisition module acquires a voltage signal of the load at an input of the load at the beginning of each flight phase.
In yet another embodiment of the present disclosure, the comparing, by the voltage regulator controller, each of the set of voltage signals with the lowest operating voltage of the corresponding load comprises: the voltage regulator controller calculates a difference between each of the set of voltage signals and a lowest operating voltage of the corresponding load.
In another embodiment of the present disclosure, the voltage regulation controller screening out the voltage regulation points based on the comparison includes: the voltage regulation controller screens the minimum value of the difference value as a voltage regulation point.
In yet another embodiment of the present disclosure, the voltage regulation controller screening out the voltage regulation points based on the comparison includes: the voltage regulating controller removes the open-circuit voltage signal and the short-circuit voltage signal in the voltage signal set.
In an embodiment of the present disclosure, a distributed voltage regulation control method for an aircraft generator is provided, including: collecting a voltage signal of a load at an input end of the load; forming a voltage signal set by the acquired voltage signals; comparing each voltage signal in the set of voltage signals with the lowest operating voltage of the corresponding load; screening out a pressure regulating point based on the comparison; and performing magnetic field control on the aircraft generator based on the screened voltage regulating points so as to regulate the output voltage of the aircraft generator.
In another embodiment of the present disclosure, the load is a high power load.
In yet another embodiment of the present disclosure, the high power load is an electromechanical load and a resistive load.
In yet another embodiment of the present disclosure, the high power load is a resistive load.
In another embodiment of the present disclosure, collecting the voltage signal of the load at the input of the load is performed at the beginning of each flight phase.
In yet another embodiment of the present disclosure, comparing each voltage signal of the set of voltage signals to a lowest operating voltage of the respective load further comprises: the voltage regulator controller calculates a difference between each of the set of voltage signals and a lowest operating voltage of the corresponding load.
In another embodiment of the present disclosure, screening out the voltage regulation points based on the comparison comprises: the minimum value of the difference is screened as the pressure regulation point.
In yet another embodiment of the present disclosure, screening out the voltage regulation points based on the comparison comprises: and removing the open-circuit voltage signal and the short-circuit voltage signal in the voltage signal set.
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
Drawings
The foregoing summary, as well as the following detailed description of the present disclosure, will be better understood when read in conjunction with the appended drawings. It is to be noted that the appended drawings are intended as examples of the claimed invention. In the drawings, like reference characters designate the same or similar elements.
FIG. 1 illustrates a prior art generator voltage regulation system architecture;
FIG. 2 illustrates a block diagram of a distributed generator voltage regulation system according to an embodiment of the present disclosure;
FIG. 3 illustrates a distributed generator voltage regulation system architecture according to an embodiment of the present disclosure;
FIG. 4 illustrates a flow chart diagram of a distributed generator voltage regulation method according to an embodiment of the present disclosure;
FIG. 5 shows a flow diagram of a distributed generator voltage regulation method according to another embodiment of the present disclosure;
FIG. 6 shows a graph of a distributed generator voltage regulation implementation according to an embodiment of the present disclosure.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present disclosure more comprehensible, embodiments accompanying figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein, and thus the present disclosure is not limited to the specific embodiments disclosed below.
The large-scale airplane has large power grid capacity and more electric equipment, and an alternating current power supply is adopted as a main power supply. However, according to the airworthiness requirement, a direct current power supply system must be provided at the same time, so that the power supply network is relatively complex.
The structure of the power supply network differs for different types of aircraft. For example, a narrow body aircraft may have only primary bus bars, a wide body aircraft (e.g., A350) may have secondary bus bars, and a larger aircraft may have tertiary bus bars.
Depending on the importance of the power supply equipment, for example, a large aircraft has three levels of bus bars: normal bus bars, critical bus bars, and emergency bus bars. Normally, the devices that are lost without affecting the flight safety of the aircraft are powered by normal bus bars (e.g., kitchen appliances, cabin entertainment systems, side windshield warming, etc.), the devices that are lost without affecting the safe operation and landing of the aircraft are typically powered by redundant power supplies, and the devices that are lost without redundancy are powered by both normal bus bars and critical bus bars (e.g., engine indicators, anti-collision lights, inertial navigation platforms, etc.), while the emergency bus bars are used to provide power to the devices that ensure the minimum functionality and safe landing of the aircraft (e.g., communications, cockpit controls, environmental controls, flight control computers, etc.) when the aircraft completely loses other power supply paths.
As shown in fig. 1, in the conventional aircraft, a voltage regulation point 102 is usually disposed between a generator output end 104 and an ac bus bar 106, and a signal detection module is used to collect characteristics of the generator output voltage and feed the characteristics back to a generator voltage regulation controller 108, so as to control the voltage of the voltage regulation point within a certain range by regulating excitation. The pressure regulation point is located at the engine output 104 and is a single pressure regulation point.
The above prior art scheme enables the existing airplane to perform voltage regulation control near the output end of the generator and perform conservative estimation on line voltage drop. In order to ensure normal operation of equipment, the voltage setting voltage of a voltage regulating point is often higher, so that a large amount of equipment works under higher input voltage; the high-power load of the aircraft is mainly a resistive load and an electric machine load, the resistive load generally consumes more energy when the input voltage is larger, and the electric machine load is generally designed to have the highest output efficiency in the lowest normal operating voltage range in order to ensure the performance in the normal operating voltage range, and generates more reactive power under the condition of higher voltage, thereby causing great waste to the energy. According to statistical calculation, the 5% load of the whole machine consumes 90% of the energy of the whole machine.
Therefore, for an aircraft power supply network with multi-level bus bars, the disclosure aims to reduce the energy consumption of onboard equipment by performing distributed and dynamic global accurate voltage regulation control on the equipment side of high-power loads of the multi-level bus bars.
Fig. 2 illustrates a block diagram of a distributed generator voltage regulation system 200 according to an embodiment of the present disclosure. The distributed generator voltage regulation control system 200 transfers the voltage regulation point of the generator from the output end of the generator to the input end of the high-power equipment, and realizes accurate voltage regulation control by using the distributed voltage regulation point, so that the airplane load works in the state of the highest output efficiency.
The distributed voltage regulation control system 200 includes a signal acquisition module 202, a signal transmission module 204, and a voltage regulation controller 206. The signal acquisition module 202 and the signal transmission module 204 may be integrated together or may be independent of each other.
The signal collecting module 202 is used for collecting a voltage signal of a load at a load input terminal. In an embodiment of the present disclosure, the signal collecting module 202 collects a voltage signal of the high power load at an input terminal of the high power load. This is considered for load distribution on the aircraft. As can be seen from the statistical data, the high-power load of 5% of the whole machine consumes 90% of the energy of the whole machine. The resistive load in the high-power load consumes more energy when the input voltage is larger, and the motor load in the high-power load is usually designed to have the highest output efficiency in the lowest normal operating voltage range in order to ensure the performance in the normal operating voltage range, and the motor load can generate more reactive power under the condition of higher voltage. Therefore, distributed voltage signal acquisition for high power loads on bus bars at different levels is beneficial for accurately determining an appropriate voltage regulation point, thereby reducing the energy consumption of onboard equipment.
Further, the distributed generator voltage regulation control system 200 may adjust the voltage regulation control mode according to the load change at any time by using a dynamic and global voltage regulation control method. Specifically, during different flight phases of the aircraft, the main working load of the aircraft may change, and the distributed generator voltage regulation control system 200 of the present disclosure may dynamically select an optimal voltage regulation point according to the load characteristics to perform accurate voltage regulation.
In another embodiment of the present disclosure, the signal acquisition module 202 acquires the voltage signal of the load at the load input at the beginning of the different flight phases. For example, during the ground service phase (or ground maintenance phase, etc.), the loads of the aircraft are mainly resistive loads, and the load voltage signals collected by the signal collection module 202 are mainly concentrated on these resistive loads.
The signal transmission module 204 is configured to transmit the collected signal to the voltage regulation controller 206. As will be understood by those skilled in the art, in an embodiment of the present disclosure, when performing dynamic global voltage regulation control, the signal transmission module 204 may send a trigger signal for starting a flight phase to the signal acquisition module 202, so that the signal acquisition module 202 performs a new round of distributed load voltage signal acquisition.
The voltage regulator controller 206 includes signal screening and logic judgment, as well as the functionality to control the magnetic field strength. The voltage regulation controller 206 processes the received distributed voltage regulation point signals and screens the processed distributed voltage regulation point signals; and then, taking the screened voltage regulating point signal as the feedback input of magnetic field intensity control to regulate the output voltage of the generator so as to form closed-loop control. How the tap point signals are processed and filtered by the tap controller 206 is described in further detail below with reference to fig. 4 and 5.
The terminal voltage of the electric equipment is finely controlled, so that the energy consumption of the equipment is reduced, and fuel is saved; meanwhile, the impact current of the motor load is reduced, and the service life of the equipment is prolonged.
Fig. 3 illustrates a distributed generator voltage regulation system architecture 300 according to an embodiment of the present disclosure.
As shown in fig. 3, a single voltage regulation point at the output end of the generator is adjusted to the input end of the high-power device, so as to form a distributed dynamic voltage regulation control system architecture.
In the distributed generator voltage regulation system architecture 300 with multi-level bus bars, the signal acquisition module 202 is installed at the input end of the high-power load as close as possible to the load. That is, each voltage regulating point is respectively arranged at the position of each level of bus bar, which is as close to the input end of the high-power load as possible.
That is, the input end of the load 1 under the primary bus bar 302 is provided with a pressure regulating point 1, the input end of the load 2 is provided with a pressure regulating point 2, and the input end of the load K is provided with a pressure regulating point K. The input end of the load 1 under the secondary bus bar 304 is provided with a pressure regulating point 1, the input end of the load 2 is provided with a pressure regulating point 2. The input end of load 1 is provided with pressure regulating point 1 under tertiary busbar 306, and the input of load 2 is provided with pressure regulating point 2, and the input of load N is provided with pressure regulating point N. The voltage signals collected at these regulation points for a plurality of load devices may form a load side input voltage set.
The voltage regulator controller 206 performs a preliminary screening of the received voltage signal. In one embodiment of the present disclosure, a voltage regulation point is screened for a multi-level bus architecture. In yet another embodiment of the present disclosure, a pressure regulation point may be screened for each of a plurality of hierarchical bus bars for hierarchical control of a respective generator. As can be understood by those skilled in the art, the screening of the pressure regulating points of different models can be performed according to different standards; moreover, the voltage ranges of the voltage regulating points referred to by different electric devices (such as internal lighting, electric mechanisms, electric heating and other intermittent working devices) are different. The technical scheme of the disclosure can adapt to airborne equipment of various types and different types, and accurate voltage control is performed by collecting voltage of voltage regulating points in a distributed mode.
The voltage regulator controller 206 then controls the magnetic field of the generator based on the screened voltage regulating point, thereby regulating the output voltage of the generator, forming a closed loop control.
Therefore, the technical scheme disclosed by the invention realizes real-time global optimization voltage control, so that the input end voltage of all equipment can meet the requirement of the lowest working voltage of the equipment, most of loads, particularly resistive loads (such as lamps) and motor loads (such as hydraulic pumps) can work in the range of the lowest normal working voltage, the energy consumption of the equipment is reduced, and when the high-power motor loads are electrified, the impact current is reduced, the loads are protected, the service life of the equipment is prolonged, and the use cost of an airline company is reduced.
FIG. 4 illustrates a flow diagram of a distributed generator voltage regulation method 400 according to an embodiment of the disclosure.
At 402, a voltage signal of a load is collected at an input of the load.
As described above, the existing aircraft performs voltage regulation control near the generator output and performs conservative estimation of line voltage drop. This results in a high-power load of the aircraft consuming more energy with a higher input voltage, which leads to an excessive consumption of energy by the equipment.
Accordingly, the present disclosure employs a distributed voltage regulation approach for aircraft generators, i.e., diverting the voltage regulation point from the generator output to the input of a load, especially a high power load.
At 404, the collected voltage signals are formed into a set of voltage signals.
At 406, each voltage signal of the set of voltage signals is compared to a lowest operating voltage of the corresponding load. Those skilled in the art will appreciate that the comparison may be performed in different ways for different aircraft devices.
At 408, a pressure regulation point is screened out based on the comparison.
In an embodiment of the present disclosure, the comparison result may be preprocessed and then further screened out the pressure-regulating point. In another embodiment of the present disclosure, the voltage regulation point can be directly screened out.
It is noted that the voltage regulation point screening herein can perform an optimal screening according to the load characteristics.
At 410, magnetic field control of the aircraft generator is performed based on the screened voltage regulation points for regulating an output voltage of the aircraft generator.
After the voltage regulation point is screened out, the magnetic field in the generator can be regulated, so that the input end voltage of the equipment is close to the lowest input voltage of the equipment.
And then detecting the voltage at the input ends of other equipment, monitoring the state of the equipment in the circuit at any time, and performing a new round of logic judgment to ensure that the voltage at the input ends of all the equipment which should normally work is kept in a normal working range in the voltage regulating process.
Therefore, the voltage regulating method of the distributed generator disclosed by the invention has the advantages that the voltage of the equipment terminal is controlled, so that the energy consumption of the equipment is reduced and the fuel is saved under the condition that the relevant equipment works at the lowest normal working voltage; through controlling the terminal voltage of the equipment, the impact current of the motor load can be reduced, and the service life of the equipment is prolonged.
Fig. 5 shows a flow diagram of a distributed generator voltage regulation method 500 according to another embodiment of the present disclosure.
The distributed generator voltage regulating method 500 is adopted for voltage regulation, so that the energy-saving design of resistive equipment and a fuel pump can be realized, and meanwhile, the starting impact current of motor equipment such as an electric pump can be reduced.
At 502, a sense voltage set input is received.
The present disclosure employs a distributed voltage regulation approach for aircraft generators, i.e., shifting the voltage regulation point from the generator output to the input of a load, especially a high power load. The high power loads of an aircraft are usually mainly resistive loads and loads of the motor type.
In an embodiment of the present disclosure, the voltage signal of the high power load may be distributively collected at the input of the high power load on the multi-level bus bar. In another embodiment of the present disclosure, the voltage signal may be collected accordingly according to the characteristics of the load employed in different flight phases. For example, only the input voltage signal of the load on the primary working bus is collected. Those skilled in the art will appreciate that for different types of aircraft, the voltage signal of the load may be flexibly collected at the input of the load, and thus received as a sensed voltage set input, in accordance with different architectures of the power supply system thereof.
At 504, a difference δ V between each voltage signal in the set of voltage signals and a lowest operating voltage of the corresponding load is calculated to obtain a δ V set.
In an embodiment of the present disclosure, the calculating may be to subtract the lowest operating voltage of the device from the collected voltage to obtain a difference δ V between the voltage at the input of the device and the lowest operating voltage of the device, and further form a δ V set. Wherein:
δ V = device input voltage-device minimum operating voltage
Where the minimum operating voltage of the device is specified in DO-160 or device specifications.
In another embodiment of the present disclosure, the calculation may be to subtract the lowest operating voltage and the safety margin of the device from the collected voltage to obtain a difference δ V, and further form a δ V set. Wherein:
δ V = device input voltage- (device minimum operating voltage + safety margin)
Those skilled in the art will appreciate that the calculation may take different forms for different aircraft devices.
At 506, the set of difference values δ V is preprocessed.
At 508, the delta V values at the device side of the delta V concentrating device open are discarded.
I.e. if δ V equals the negative nominal voltage (e.g. 30V) ± allowed measurement error, then this value should be discarded.
Next, at 510, detecting whether a short-circuit fault exists in the circuit, if so, keeping the original exciting current and waiting for the short-circuit fault to be isolated; and after the short circuit is isolated, the voltages of all the equipment input ends are detected again.
Then, at 512, if there is no short circuit fault, it is detected whether the generator is operating normally.
In an embodiment of the present disclosure, it is detected whether a value less than 0 exists in δ V set; if delta V is smaller than 0, the magnetic field intensity in the generator is increased, and the output voltage of the generator is increased.
In another embodiment of the disclosure, detecting whether δ ν set is less than-3%; and if the voltage of the generator is higher than the preset value, increasing the magnetic field intensity in the generator and increasing the output voltage of the generator.
Thus, after the pre-processing of the comparison results is completed, i.e., the conditions of open circuit, short circuit, and abnormal operation of the generator are eliminated, the voltage regulation point is further screened out at 514.
It is noted that the voltage regulation point screening herein can perform an optimal screening according to the load characteristics.
In an embodiment of the present disclosure, the minimum value δ V in δ V set is screened out min And the device input end corresponding to the value is used as a voltage regulation point of the current generator output voltage.
In another embodiment of the present disclosure, the pressure regulation point screening is performed according to different flight phases.
For example, in the ground service mode, the aircraft workload is primarily resistive (e.g., lights, kitchen, bathroom, freight, etc.) and is not voltage sensitive, and the average value in the δ V set is selected to be equal to
And the equipment input end corresponding to the value is used as a voltage regulating point of the current generator output voltage.
For example, in cruise mode, the primary workload of the aircraft is an electric motor-like load such as a hydraulic pump. And at the moment, screening the concentration equal to delta V, and taking the equipment input end corresponding to the value as a voltage regulation point of the current generator output voltage.
Those skilled in the art will appreciate that the scheme for performing optimal voltage regulation point screening according to load characteristics may be selected for load characteristics of different types of aircraft, and the minimum value δ V in the δ V set may be selected min Or average value
Other suitable strategies may also be employed in connection with specific load operational scenarios.
At 516, the magnetic field of the generator is adjusted using the device input corresponding to the screened δ V as a voltage regulation point.
In an embodiment of the present disclosure, the minimum value δ V in δ V set is screened out min As a pressure regulation point. In another embodiment of the present disclosure, the mean is screened
As voltage regulating point
FIG. 6 shows a graph of a distributed generator voltage regulation implementation according to an embodiment of the present disclosure.
As can be seen in the upper graph 602 of fig. 6, the distributed generator voltage regulation implementation of the present disclosure may ensure soft start of the onboard motor pump: the impact current and the voltage of the input end of the airborne electric pump are in inverse proportion, and the input voltage of the electric pump can be controlled through the distributed voltage regulation control system, so that the input voltage of the electric pump is close to the lowest working voltage of the electric pump as much as possible, the effect of soft start is achieved, the impact current is reduced, and the service life of equipment is prolonged.
As can be seen from the lower diagram 604 in fig. 6, the voltage regulation implementation of the distributed generator of the present disclosure can ensure an energy-saving design of a resistive high-power load: the cabin lighting equipment and the like have the advantages that due to the resistive characteristic, the input end voltage is higher, the brightness is higher, the input end voltage can be reduced through the distributed voltage regulation control system, and the energy consumption is reduced.
It is noted that although the distributed generation voltage regulation system and method of the present disclosure diverts the voltage regulation point from the generator output to the input of the load, those skilled in the art will appreciate that the voltage regulation point at the generator output may still be reserved for backup so that the power supply capability of the aircraft may be ensured in extreme cases where there is a complete loss of communication.
The various steps and modules of the distributed generator voltage regulation system and method described above may be implemented in hardware, software, or a combination thereof. If implemented in hardware, the various illustrative steps, modules, and circuits described in connection with the present invention may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic component, hardware component, or any combination thereof. A general purpose processor may be a processor, microprocessor, controller, microcontroller, state machine, or the like. If implemented in software, the various illustrative steps, modules, etc. described in connection with the present invention may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Software modules implementing various operations of the present invention may reside in storage media such as RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable disk, a CD-ROM, cloud storage, and the like. A storage medium may be coupled to the processor such that the processor can read information from, and write information to, the storage medium, and execute the corresponding program modules to perform the steps of the present invention. Furthermore, the software-based embodiments may be uploaded, downloaded or accessed remotely by suitable communication means. Such suitable communication means include, for example, the internet, the world wide web, an intranet, software applications, cable (including fiber optic cable), magnetic communication, electromagnetic communication (including RF, microwave, and infrared communication), electronic communication, or other such communication means.
It is also noted that the embodiments may be described as a process which is depicted as a flowchart, a flow diagram, a structure diagram, or a block diagram. Although a flowchart may describe the operations as a sequential process, many of the operations can be performed in parallel or concurrently. In addition, the order of the operations may be rearranged.
The disclosed methods, apparatus, and systems should not be limited in any way. Rather, the invention encompasses all novel and non-obvious features and aspects of the various disclosed embodiments, both individually and in various combinations and sub-combinations with each other. The disclosed methods, apparatus, and systems are not limited to any specific aspect or feature or combination thereof, nor do any of the disclosed embodiments require that any one or more specific advantages be present or that a particular or all technical problem be solved.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes may be made in the embodiments without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (16)
1. A distributed voltage regulation control system for an aircraft generator, comprising:
the signal acquisition module is used for acquiring a voltage signal of a load at an input end of the load;
the signal transmission module is used for transmitting the acquired voltage signal to the voltage regulation controller; and
voltage regulating controller of
Forming a voltage signal set by the acquired voltage signals;
comparing each voltage signal in the set of voltage signals with the lowest operating voltage of the corresponding load;
screening out a pressure regulating point based on the comparison;
and performing magnetic field control on the aircraft generator based on the screened voltage regulating points so as to regulate the output voltage of the aircraft generator.
2. The distributed voltage regulator control system for an aircraft generator as defined in claim 1, wherein the load is a high power load.
3. The distributed voltage regulator control system for an aircraft generator of claim 2, wherein the high power loads are electrical machine type loads and resistive loads.
4. The distributed voltage regulator control system for an aircraft generator of claim 2, wherein the high power load is a resistive load.
5. The distributed voltage regulation control system for an aircraft generator of claim 1 wherein the signal acquisition module acquires a voltage signal of a load at an input of the load at the beginning of each flight phase.
6. The distributed voltage regulator control system for an aircraft generator of claim 1, wherein the voltage regulator controller comparing each of the set of voltage signals to a lowest operating voltage of the respective load comprises:
the voltage regulation controller calculates a difference between each voltage signal in the set of voltage signals and a lowest operating voltage of the corresponding load.
7. The distributed voltage regulation control system for an aircraft generator of claim 5, wherein the voltage regulation controller screening out voltage regulation points based on the comparison comprises:
and the voltage regulation controller screens the minimum value of the difference value as a voltage regulation point.
8. The distributed voltage regulation control system for an aircraft generator of claim 1, wherein the voltage regulation controller screening out voltage regulation points based on the comparison comprises:
and the voltage regulating controller removes the open-circuit voltage signal and the short-circuit voltage signal in the voltage signal set.
9. A distributed voltage regulation control method for an aircraft generator, comprising:
collecting a voltage signal of a load at an input end of the load;
forming a voltage signal set by the acquired voltage signals;
comparing each voltage signal in the set of voltage signals with the lowest operating voltage of the corresponding load;
screening out a pressure regulating point based on the comparison;
and performing magnetic field control on the aircraft generator based on the screened voltage regulating points so as to regulate the output voltage of the aircraft generator.
10. A distributed voltage regulation control method for an aircraft generator as defined in claim 8 wherein the load is a high power load.
11. The distributed voltage regulation control method for an aircraft generator of claim 9 wherein the high power loads are motor type loads and resistive loads.
12. The distributed voltage regulation control method for an aircraft generator of claim 9 wherein the high power load is a resistive load.
13. A distributed voltage regulation control method for an aircraft generator as defined in claim 9 wherein collecting the voltage signal of the load at the input of the load is performed at the beginning of each flight phase.
14. The distributed voltage regulation control method for an aircraft generator of claim 9 wherein comparing each voltage signal in the set of voltage signals to a lowest operating voltage of the corresponding load further comprises:
the voltage regulation controller calculates a difference between each voltage signal in the set of voltage signals and a lowest operating voltage of the corresponding load.
15. The distributed voltage regulation control method for an aircraft generator of claim 12 wherein screening out voltage regulation points based on the comparison comprises:
and screening the minimum value of the difference value as a pressure regulating point.
16. The distributed voltage regulation control method for an aircraft generator of claim 8 wherein screening out voltage regulation points based on the comparison comprises:
and removing the open-circuit voltage signal and the short-circuit voltage signal in the voltage signal set.
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|---|---|---|---|---|
| CN201504133U (en) * | 2009-07-31 | 2010-06-09 | 张雷廷 | Digital mixed magnetic generator |
| JPWO2014083596A1 (en) * | 2012-11-30 | 2017-01-05 | トヨタ自動車株式会社 | Generator control device and generator control method |
| ES2622380T3 (en) * | 2014-10-27 | 2017-07-06 | Abb Schweiz Ag | Electric power generation system |
| DE102014222337B3 (en) * | 2014-10-31 | 2016-01-21 | Continental Teves Ag & Co. Ohg | Method and device for controlling a foreign-excited electric generator in a vehicle electrical system of a motor vehicle |
| CN108111074B (en) * | 2018-01-15 | 2020-07-03 | 陕西航空电气有限责任公司 | High-voltage direct-current generator voltage regulation control device with parallel current sharing function |
| CN207939211U (en) * | 2018-03-05 | 2018-10-02 | 山西大欣源科技有限公司 | Distributed power generation pressure regulation filtering system |
| CN109638842B (en) * | 2019-01-15 | 2022-05-17 | 杭州电子科技大学 | Intelligent search algorithm applied to flexible load real-time voltage regulation |
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