DE692256C - Method for reducing the speed fluctuations in the driving force of supply generators for transmitters - Google Patents

Method for reducing the speed fluctuations in the driving force of supply generators for transmitters

Info

Publication number
DE692256C
DE692256C DE1937L0091922 DEL0091922D DE692256C DE 692256 C DE692256 C DE 692256C DE 1937L0091922 DE1937L0091922 DE 1937L0091922 DE L0091922 D DEL0091922 D DE L0091922D DE 692256 C DE692256 C DE 692256C
Authority
DE
Germany
Prior art keywords
driving force
transmitters
modulation
reducing
speed fluctuations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1937L0091922
Other languages
German (de)
Inventor
Dr-Ing Fritz Gutzmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Priority to DE1937L0091922 priority Critical patent/DE692256C/en
Application granted granted Critical
Publication of DE692256C publication Critical patent/DE692256C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03CMODULATION
    • H03C1/00Amplitude modulation
    • H03C1/62Modulators in which amplitude of carrier component in output is dependent upon strength of modulating signal, e.g. no carrier output when no modulating signal is present

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Description

Verfahren zur Verringerung der Drehzahlschwankungen der Antriebskraft von Speisegeneratoren für Sender Es sind sog. energiesparende Modulationen bekannt, .deren Grundprinzip darauf hinausläuft, den Trägermittelwert in Abhängigkeit von der mittleren Modulati.onsaxnplitude zu steuern. Der Träger wird mit anderen Worten so eingerichtet, daß er im wesentlichen immer voll dur chmoduliert ist. Die bisher bekannten Verfahren brachten eine Verringerung der NTetzaufnahme, aus dem die Sendeanlage gespeist wurde. Es besteht jedoch in manchem. Fällen ein Bedürfnis, die Sender nicht aus Netzen der allgemeinen Elektrizitätsversorgung u. dgl. zu speisen, sondern ihnen eine besondere örtliche Energiequelle, wie z. B. ein Dieselaggregat, zu ,geben.Method for reducing the speed fluctuations of the driving force of supply generators for transmitters So-called energy-saving modulations are known, .whose basic principle amounts to the carrier mean as a function of to control the mean modulation amplitude. In other words, the wearer will so arranged that it is essentially always fully modulated. The so far known methods brought a reduction in the Netzaufnahme, from which the transmission system was fed. However, there is some. Cases of a need, the broadcasters do not from networks of the general electricity supply and the like. Instead of them a particular local energy source, such as B. a diesel generator to give.

Bei derartigen Anlagern kann man prinzipiell dieselbe Steuerung .anwenden, @d. h. einfach ,auf der elektrischen Seite z. B. die Gittervors-pannung, Anodenspannung oder auch beide entsprechend ,dem genannten Modulationsverfahren verändern. Damit wird die Antriebsmaschine, z. B. das Dieselaggregat, wechselnd belastet. Da der Antriebsmas.chime eine gewisse Trägheit innewohnt, können sieh hierdurch unzuträgliche Betriebszustände ier-.geben. Es kann nämlich z. B. vorkommen, daß die Madulationsamplitude plötzlich steigt, die dadurch bedingte erhöhte Last auf das Antriebsaggregat gelangt, dieses jedoch nicht imstande ist, so schnell den erhöhten Leistungsbedarf zu decken. Es ist aber auch das Umgekehrte möglich, d.aß bei einer plöitz-lIchen Verringerung der Modul.ationsamplitude eine Entlastung der Antriebsmaschine auftritt, die zu einer Erhöhung ihrer Tourenzahl und damit zu einer Änderung der Sp:eisesp,annu_ngen,des Senders bzw. deren Frequenz führt, was ;auch wiederum zu Ausgleichsvorgängen Veranlassung ;gibt.In principle, the same control system can be used for such systems. @d. H. easy, on the electrical side z. B. the grid bias, anode voltage or change both according to the modulation method mentioned. In order to the prime mover, e.g. B. the diesel unit, alternately loaded. Since the Drive mas.chime inherent in a certain inertia, can look unsustainable as a result Enter operating states. Namely, it can z. B. happen that the madulation amplitude suddenly increases, the resulting increased load on the drive unit, However, this is not able to meet the increased power requirements so quickly. But the reverse is also possible, i.e. with a sudden decrease the modulation amplitude a relief of the prime mover occurs, which too an increase in the number of tours and thus a change in the Sp: eisesp, annu_ngen, des Transmitter or its frequency leads, which, in turn, cause compensation processes ;gives.

Die vorliegende Erfindung schlägt vor, zum Zwecke der Verringerung der Drehzahlschwankungen der Antriebskraft von Speisegeneratoren für Sender, bei denen die Gleichstramaüfnahme in Abhängigkeit von der Modulation gesteuert wird (z. B. Trägersteuerung in Abhängigkeit von der mittleren Modu-Lationsazuplitude), die Antriebskraft der die . Speisespannungen liefernden Einrichtungen in Abhängigkeit von der Modul'ationsienergie! . zu steuern und dabei eine sog. Rückführung anzuwenden.The present invention proposes for the purpose of reduction the fluctuations in speed of the driving force of supply generators for transmitters which the DC requirement depending on the modulation is controlled (e.g. carrier control depending on the mean modulation amplitude), the driving force of the. Devices supplying supply voltages as a function of of the modulation energy! . to control and apply a so-called return.

Im Falle der Diesielmaschine kann dies dadurch erfolgen, .daß die Einspritzdüsie derselben in Abhängigkeit von der Modulation gesteuert wird. Es ist lediglich notwendig, den von den Modulationsströmen abgeleiteten Gleichstrom nicht nur zur Steuerung des elektrischen Teils der Anlage zu verwenden, sondern auch zur Beeinflussung der Brennstoffdüse. Veränderliche Brennstoffdüsen, sind an sich bei derartigen Antriebsmaschinen bekannt, zur- Einregulierung ihrer Drehzahl bei bestimmter Last. Sie müssen für die vorliegende Erfindung nur so ausgestaltet werden, daß eine genügend rasche und spielfreie Regulierung möglich ist. Durch das' weiterhin vorgesehene Prinzip der Rückführung, das darin besteht, durch geeignete Maßnahmen dafür zu sorgen, daß die Veränderung der Antriebskraft rechtzeitig genug wieder rückgängig gemacht wird, ist besonders im Falle von kurzzeitig auftretenden Modulationssfiitzen wertvoll. Die hier bestehende Auf-.,-%:ie läßt sich mit den in .der Technik vorhan-'de'nen Mitteln, wie sie z. B. für die Turbinenregulierung Verwendung finden, ohne Schwierigkeiten läsen.In the case of the diesel machine, this can be done by .that the Injector the same is controlled as a function of the modulation. It is only necessary, not the direct current derived from the modulation currents to be used only for controlling the electrical part of the system, but also for Influence on the fuel nozzle. Variable fuel nozzles are inherently included such drive machines known to regulate their speed at certain Load. You only have to be designed for the present invention that a sufficiently rapid and backlash-free regulation is possible. Through the 'still provided Principle of return, which consists in taking appropriate measures to ensure that that the change in the driving force is reversed in good time is particularly valuable in the case of short-term modulation peaks. The existing here -., -%: it can be present with the in the technology Means such as B. can be used for turbine regulation without difficulty read.

Claims (1)

PA TENTAIITSPRL CH Verfahren zur Verringerung der Drehzahlschwankungen der Antriebskraft von Speisegeneratoren für Sender, bei denen die Gleichstromaufnahme in Abhängigkeit von der Modulation gesteuert wird (z. B. Trägersteuerung in Abhängigkeit von der mittleren Modulationsamplitude ), dadurch gekennzeichnet, daß auch die Antriebskraft der die Speisespannungen liefernden Einrichtungen in Abhängigkeit von der Modulatiönsenergie gesteuert wird und dabei eine sog. Rückführung angewendet wird.PA TENTAIITSPRL CH Procedure for reducing speed fluctuations the driving force of supply generators for transmitters in which the direct current consumption is controlled as a function of the modulation (e.g. carrier control as a function of of the mean modulation amplitude), characterized in that the driving force of the devices supplying the supply voltages as a function of the modulation energy is controlled and a so-called feedback is applied.
DE1937L0091922 1937-02-02 1937-02-02 Method for reducing the speed fluctuations in the driving force of supply generators for transmitters Expired DE692256C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1937L0091922 DE692256C (en) 1937-02-02 1937-02-02 Method for reducing the speed fluctuations in the driving force of supply generators for transmitters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937L0091922 DE692256C (en) 1937-02-02 1937-02-02 Method for reducing the speed fluctuations in the driving force of supply generators for transmitters

Publications (1)

Publication Number Publication Date
DE692256C true DE692256C (en) 1940-06-15

Family

ID=7287385

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1937L0091922 Expired DE692256C (en) 1937-02-02 1937-02-02 Method for reducing the speed fluctuations in the driving force of supply generators for transmitters

Country Status (1)

Country Link
DE (1) DE692256C (en)

Similar Documents

Publication Publication Date Title
DE3225456A1 (en) METHOD FOR EXPLOITING WIND ENERGY FOR GENERATING ELECTRICITY WITH CONSTANT FREQUENCY
DE19534786A1 (en) Current supply system with generator-motor set for power supply to load
DE3311299A1 (en) Method and device for stabilising the frequency and voltage of a network which is supplied from a drive set
DE692256C (en) Method for reducing the speed fluctuations in the driving force of supply generators for transmitters
DE812660C (en) Wind turbine
DE664733C (en) Arrangement for high-speed excitation of electrical machines
DE224294C (en) Buffer arrangement in single or multi-phase AC systems
DE929161C (en) Gas turbine plant with separate machine sets for useful power and compressor power
DE447985C (en) Electric voltage regulator for power generators operating by means of a liquid servomotor
DE966722C (en) Converter with DC link
DE2021024A1 (en) Circuit for limiting the starting current of the motors of electric traction vehicles
DE1538649B2 (en) Generator system for alternating current of constant frequency with changing drive speed
DE949961C (en) Converter arrangement in cross connection
DE671329C (en) Device for controlling the relative synchronization of DC motors of a multi-motor drive with master speed
DE911988C (en) Device for speed control of an electric motor
DE972148C (en) Arrangement for generating electrical energy with alternating current machines with variable speed
DE2751299A1 (en) Electrical vehicle traction system - has motor which is regulated by flywheel generator which stores energy
DE1438978C3 (en) Power supply device for the auxiliaries of a rail locomotive driven by an internal combustion engine
DE971427C (en) Power plant circuit for supplying two networks with different operating conditions
DE677016C (en) Device for regulating the voltage of alternating current synchronous generators by means of a control rectifier
DE643663C (en) Method for controlling the electric motor drive of a press ram in lignite briquette presses
DE705518C (en) Device for the rapid adjustment of the drive machines of synchronous generators that work on high-voltage networks that are exposed to sudden changes in load
AT154063B (en) Arrangement for converting alternating currents of a given frequency into those of other frequencies by means of controllable gas or vapor-filled discharge paths.
DE1513639C (en) Control arrangement for an electric traction vehicle driven by direct current traction motors with separately excited field windings
DE936463C (en) Energy generation for electrolysis systems