DE2055210A1 - Method for controlling mains-frequency alternating current consumers - Google Patents
Method for controlling mains-frequency alternating current consumersInfo
- Publication number
- DE2055210A1 DE2055210A1 DE19702055210 DE2055210A DE2055210A1 DE 2055210 A1 DE2055210 A1 DE 2055210A1 DE 19702055210 DE19702055210 DE 19702055210 DE 2055210 A DE2055210 A DE 2055210A DE 2055210 A1 DE2055210 A1 DE 2055210A1
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- alternating current
- mains
- circuit arrangement
- voltage
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
- H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
- H02M5/22—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/275—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/293—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Description
Reg.-Nr. DOP 97 DT 6 Frankfurt/Main, den 6.11.1970Registration number. DOP 97 DT 6 Frankfurt / Main, November 6th, 1970
Dominitwerke Gesellschaft mit beschränkter Haftung 5798 Hoppecke/Brilon, Postfach 24Dominitwerke limited liability company 5798 Hoppecke / Brilon, Postfach 24
Verfahren zur Steuerung netzfrequenter Wechselstromverbraucher Method for controlling mains-frequency alternating current consumers
Die Erfindung betrifft ein Verfahren zur Steuerung netzfrequenter Viechseistromverbraucher, insbesondere kapazitiver Wechselstromverbraucher. The invention relates to a method for controlling mains-frequency consumer electricity consumers, in particular capacitive alternating current consumers.
Bekannt sind Verfahren, die Spannung in einem Gleichstromverbraucher durch Impulsbreiten-Taktung zu steuern.Methods are known that regulate the voltage in a direct current consumer controlled by pulse width clocking.
Bekannt sind außerdem Wechselstromsteller, die unter Verwendung von magnetischen oder elektronischen Bauteilen durch Phasenanschnitt der netzfrequenten Wechselspannung den Strom eines in Reihe geschalteten Verbrauchers steuern (Transduktoren, antiparallel geschaltete Thyristoren, Triac usw.).Also known are AC power controllers that use magnetic or electronic components by phase control control the current of a consumer connected in series (transducers, anti-parallel switched thyristors, triac etc.).
Gegenstand der vorliegenden Erfindung ist die Steuerung der Spannung an einem beliebigen Verbraucher durch Taktung der Netzspannung durch tonfrequente Impulse, deren Folgefrequenz f = m ein hohes Vielfaches (f = η χ f.) der Netzspannung ist.The subject of the present invention is the control of the voltage at any consumer by pulsing the mains voltage with audio-frequency pulses whose repetition frequency f = m is a high multiple (f = η χ f.) Of the mains voltage.
Durch das erfindungsgemäße Verfahren wird die Periodendauer T. der Netzspannung in η Vertikalstreifen gleicher Breite zerlegt; dabei kann erfindungsgemäß die Anzahl η dieser Vertikalstreifen durch Verändern der Steuerfrequenz f bei konstanter Impulsbreite verändert werden oder die Breite dieser Streifen kann bei konstanter Frequenz f = f von ο bis T./n ausgesteuert werden.With the method according to the invention, the period T. the network voltage divided into η vertical strips of equal width; according to the invention, the number η of these vertical strips by changing the control frequency f at a constant pulse width or the width of this strip can be changed at constant frequency f = f from ο to T./n.
209822/0235209822/0235
Durch Reihenschaltung einer Induktivität L, welche die Differenz zwischen Netz- und Verbraucherspannung aufnimmt, kann letztere zwischen O und voller Netzspannung verändert werden.By connecting an inductance L in series, which absorbs the difference between the mains and consumer voltage, the latter can can be changed between 0 and full mains voltage.
Der Verbraucher kann komplex mit beliebigem Phasenwinkel (ohmisch, induktiv, kapazitiv) sein.The consumer can be complex with any phase angle (ohmic, inductive, capacitive).
In Abbildung 1 wird eine der möglichen Schaltungen zur Steuerung eines Kondensatorstroms gezeigt:Figure 1 shows one of the possible circuits for controlling a capacitor current:
Der Kondensator C liegt in Reihe mit einer Einphasen-Gleichrichter-Brücke an der Netzspannung U. Im Gleichstromzweig der Brücke ^ befindet sich die Serienschaltung eines Schalters S und einer Induktivität L. Die Verwendung der Brücke bringt den Vorteil, daß der Schalter S in beiden Halbwellen der Netzspannung in gleicher Richtung vom Strom durchflossen wird. Dadurch kann eine Antiparallelschaltung von zwei Schaltern, welche in der Praxis durch Halbleiter realisiert sind, vermieden werden.The capacitor C is in series with a single-phase rectifier bridge at the mains voltage U. In the direct current branch of the bridge ^ is the series connection of a switch S and an inductance L. The use of the bridge has the advantage that the switch S is the same in both half-waves of the mains voltage Direction is traversed by the current. This allows an anti-parallel connection of two switches, which in practice Semiconductors are realized, avoided.
Als besonders vorteilhaft erweist es sich, bei konstanter Folgefrequenz f = η χ f, die Impulsbreite zu steuern.It proves to be particularly advantageous at a constant repetition frequency f = η χ f to control the pulse width.
Die Verwendung einer hohen Steuerfrequenz (z.B. η = 100) bringt den Vorteil, daß die Drossel L kleingehalten werden kann; ihre 50 Hz.-Reaktanz beträgt nur den Bruchteil eines Prozentes der w entsprechenden Reaktanz des zu steuernden Kondensators, während bei direkter Kompensation dieser Prozentsatz zwischen 50 und 100 liegen muß. Die Differenz aus gesteuerter Kondensator- und Netzspannung wird von der Brücke aufgenommen. Das charakteristische Strom-Spannungsdiagramm dieser Brücke zeigt Abbildung 2. Man sieht aus diesem Oszillogramm, daß die Brücke sich netzfrequenzseitig wie ein verlustloser ohmscher Widerstand verhält, dessen V/iderstandswert je nach Aussteuerung zwischen Null und unendlich verändert werden kann. Die Abweichung von diesem Verhalten ( ein durch induktive Blindleistung erzeugter verlustloser ohmscher Widerstand) wird um so geringer, je größer η gewählt wird. DerThe use of a high control frequency (for example η = 100) has the advantage that the throttle L can be kept small; Their 50 Hz reactance is only a fraction of a percent of the w corresponding reactance of the capacitor to be controlled, while this percentage must be between 50 and 100 in the case of direct compensation. The bridge absorbs the difference between the controlled capacitor voltage and the mains voltage. The characteristic current-voltage diagram of this bridge is shown in Figure 2. This oscillogram shows that the bridge behaves like a lossless ohmic resistor on the mains frequency side, the V / resistance value of which can be changed between zero and infinite depending on the modulation. The deviation from this behavior (a lossless ohmic resistance generated by inductive reactive power) becomes smaller the larger η is chosen. Of the
209822/0235209822/0235
geometrische Ort des Kondensatorspannungs-Vektors liegt damit auf einem Halbkreis, dessen Durchmesser der Netzspannungsvektor ist. Die Oszillogramme Abbildungen 3» 4 und 5, welche Netz- und Kondensat.orspannung bei verschiedener Aussteuerung zeigen, bestätigen diesen Sachverhalt. Ersetzt man den gesteuerten Kondensator durch einen ohmschen Widerstand, so sind Netzspannung und gesteuerte Spannung am Widerstand bei allen Aussteuerungsgraden in Phase.The geometric location of the capacitor voltage vector is thus on a semicircle, the diameter of which is the mains voltage vector. The oscillograms Figures 3 »4 and 5, which network and Show capacitor bias at different levels, confirm this fact. Replacing the controlled capacitor through an ohmic resistor, the mains voltage and the controlled voltage at the resistor are at all levels of modulation in phase.
Selbstverständlich kann die Drossel auch außerhalb der Brücke direkt vor den Kondensator geschaltet werden, doch wird das Problem, den Endmagnetisierungsstrom der Drossel in den gesteuerten Wechselstrom mit einzubeziehen, dann wesentlich aufwendiger.Of course, the choke can also be connected outside the bridge directly in front of the capacitor, but the problem becomes Including the final magnetizing current of the choke in the controlled alternating current is then much more expensive.
- Patentansprüche -- patent claims -
209822/023S209822 / 023S
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702055210 DE2055210A1 (en) | 1970-11-10 | 1970-11-10 | Method for controlling mains-frequency alternating current consumers |
| FR7139977A FR2113869B3 (en) | 1970-11-10 | 1971-11-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702055210 DE2055210A1 (en) | 1970-11-10 | 1970-11-10 | Method for controlling mains-frequency alternating current consumers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2055210A1 true DE2055210A1 (en) | 1972-05-25 |
Family
ID=5787667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702055210 Pending DE2055210A1 (en) | 1970-11-10 | 1970-11-10 | Method for controlling mains-frequency alternating current consumers |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2055210A1 (en) |
| FR (1) | FR2113869B3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4255782A (en) * | 1977-11-15 | 1981-03-10 | Jgf, Incorporated | Electrical energy conversion systems |
-
1970
- 1970-11-10 DE DE19702055210 patent/DE2055210A1/en active Pending
-
1971
- 1971-11-08 FR FR7139977A patent/FR2113869B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2113869B3 (en) | 1974-06-21 |
| FR2113869A3 (en) | 1972-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3625614C2 (en) | ||
| DE1438654A1 (en) | Electrical supply circuit arrangement | |
| DE2605577B2 (en) | Induction heating device | |
| DE2254839A1 (en) | STATIC CONVERTER FOR CONVERTING DIRECT CURRENT INTO THREE-PHASE ALTERNATING CURRENT | |
| DE19642522C1 (en) | Inverter | |
| DE2511564A1 (en) | Actuating cct for coil of electromagnetic valve - holding current maintained by phase angle varying arrgt | |
| DE2811908C2 (en) | Arrangement with a transformer for suddenly changing voltages | |
| DE4305768C2 (en) | Power supply device | |
| AT516643A1 (en) | Rectifier circuit | |
| DE2055210A1 (en) | Method for controlling mains-frequency alternating current consumers | |
| DE2248938A1 (en) | RECTIFIER CIRCUIT ARRANGEMENT | |
| DE10160361A1 (en) | Device for providing alternating or 3-phase currents has control circuit that switches reverse blocking IGBTs connected in reverse parallel on and off during positive and negative half waves | |
| DE3149418A1 (en) | "SELF-COMMUTING INVERTER" | |
| DE3437242A1 (en) | Electronic power controller, especially for controlling the outlet temperature of electrical continuous-flow heaters | |
| DE1957103C2 (en) | Converter for generating an alternating current from a direct voltage source | |
| DE3641449A1 (en) | Switched-mode power supply for three-phase networks | |
| DE2543066A1 (en) | Static converter circuit - has two converters with series outputs and composite output voltages amplitude altered by phase difference | |
| DE904794C (en) | Converter or converter with switching reactors | |
| DE2905389C2 (en) | ||
| DE653315C (en) | Switching arrangement for generating several voltages offset from one another by equal angles from a single-phase AC voltage for controlling discharge paths | |
| DE680297C (en) | Device for the automatic maintenance of an alternating voltage | |
| DE3601990A1 (en) | CONTROL METHOD FOR PARALLEL THYRISTOR-SET INDUCTIVES FOR FAST BLIND CURRENT COMPENSATION | |
| DE3030186A1 (en) | Motor control circuit for traction equipment - includes rectifier bridge for thyristor firing control with modified thyristor cut off | |
| DE3117876C2 (en) | Control when operating a three-phase direct converter in the gap area | |
| DE975302C (en) | Contact converter |