JPH01103162A - Waveform controller - Google Patents

Abstract

PURPOSE:To reduce the quantity of power consumption by lowering effective value by a waveform slit system while keeping the maximum value in an approximate value by using a peak voltage generation transformer and a peak voltage reverse injection transformer. CONSTITUTION:A waveform controller is constituted of a peak voltage generation transformer 11 and a peak voltage reverse injection transformer 12. A secondary winding of the peak voltage generation transformer 11 is connected to a primary winding of the said reverse injection transformer 12 so as the peak voltage is injected in reverse polarity. For this generation transformer 11, a primary winding 22 is wound on the central foot of a shell type transformer core 21, and a secondary winding 23 is wound on an upper yoke section. The section of the yoke section is reduced. Thereby, the sine wave AC voltage E0 that received the power is supplied to the transformer 11 to form the peak voltage (e), and the generation phase ot this voltage (e) corresponds to the maximum value generation phase of the said AC voltage E0. This is superposed on the voltage E0 through the transformer 12 and is outputted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a waveform control device, and particularly to a waveform control device that reduces an effective value while approximately maintaining a maximum value.

[Prior art and its problems]

For electricity consumers, their electricity demand (power consumption it)
It is an urgent problem from an economic point of view to try to reduce electricity charges by suppressing electricity consumption.

In order to suppress the power demand, the purpose can be achieved by lowering the effective value of the voltage at the receiving point.

However, there are some electrical devices, such as fluorescent lamps, discharge lamps such as mercury lamps, and magnetic switches, which lose their functionality if the voltage drops below this value. Therefore, simply reducing the effective value of the voltage is not practical because the electrical equipment may stop working.

An object of the present invention is to provide a waveform control device that reduces the effective value using a waveform division method while approximately maintaining the maximum value.

Means for Solving Problem c] The waveform control device of the present invention includes: a peak voltage generation transformer that generates a peak voltage from a sine wave AC voltage; and a transformer for generating a peak voltage from a sine wave AC voltage; It is equipped with a peak voltage reverse injection transformer that injects with reverse polarity, and is characterized by reducing the effective value while approximately maintaining the maximum value.

〔Example〕

FIG. 1 is a basic circuit diagram of a waveform control device of the present invention.

This waveform control device includes a peak voltage generation transformer 11,
It is composed of a peak voltage reverse injection transformer 12.

The secondary winding of the peak voltage generation transformer 11 is connected to the primary winding of the peak voltage reverse injection transformer 12 so that the peak voltage is injected with opposite polarity.

FIG. 2 shows an example of the peak voltage generating transformer 11.

This peak voltage generation transformer has an outer iron type transformer core 21.
A primary winding vA22 is wound around the central leg of the yoke, and a secondary winding 23 is wound around the upper yoke. Make the cross section of the yoke smaller. The principle of this peak voltage generating transformer will be briefly explained with reference to FIG. Magnetic flux Φ due to primary winding
, is divided into two magnetic fluxes Φ2 of the yoke parts. Primary winding 2
The voltage E0 applied to 2 is a sine wave voltage, and the primary winding,
122 generates a magnetic flux Φ whose phase is delayed by 90 degrees from Eo. Φ.

is a sine wave, but above the magnetic flux density of Φ2, it suddenly saturates and becomes a constant value, dΦ,/dt=0, and therefore the secondary electromotive force becomes 0. That is, the magnetic flux Φ2 changes only during the period when the yoke is unsaturated, and as a result, the secondary electromotive force e becomes a peak wave. The generation phase of this peak wave coincides with the maximum value generation phase of the sinusoidal AC voltage E0.

Next, the operation of this embodiment will be explained with reference to the waveform diagram of FIG. 4.

The received sinusoidal AC voltage E0 of FIG. 4(a) is supplied to the peak voltage generation transformer 11 of the waveform control device, and the fourth
A peak voltage e as shown in FIG. 3(b) is formed.

The generation phase of this peak voltage coincides with the maximum value generation phase of the sinusoidal AC voltage E, as described above. The peak voltage e is superimposed on the sinusoidal AC voltage E0 with the opposite polarity via the peak voltage reverse injection transformer 12, as shown in FIG. 4(c).
A voltage E whose waveform is divided as follows is output.

The maximum value of this voltage E+ is maintained approximately at the maximum value of the sinusoidal AC voltage E, and its effective value is decreasing.

Therefore, by using the voltage of such a divided waveform, the power consumption can be reduced while maintaining the functionality of devices that require a voltage higher than that value, such as fluorescent lamps, discharge lamps such as mercury lamps, and magnetic switches. It becomes possible to aim at reduction.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to obtain a waveform control device with a simple configuration that reduces the effective value while maintaining the maximum value proximally using the waveform division method.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a waveform control device that is an embodiment of the present invention, FIG. 2 is a diagram showing an example of the peak voltage generation transformer shown in FIG. 1, and FIG. 3 is a diagram showing an example of the peak voltage generation transformer shown in FIG. FIG. 4 is a waveform diagram for explaining the operation of the peak voltage generating transformer. FIG. 4 is a waveform diagram for explaining the operation of the embodiment shown in FIG. 11...Transformer for peak voltage generation 12...
Peak voltage reverse injection transformer 21...External iron type transformer core 22...Primary winding 23...Secondary winding Agent Patent attorney Yoshiyuki Iwasa Figure 1 e Figure 2 Figure 3

Claims (1)

[Claims] (1) A peak voltage generation transformer that generates a peak voltage from a sine wave AC voltage, and a peak voltage reverse injection transformer that injects the generated peak voltage with the opposite polarity to the sine wave AC voltage. A waveform control device that reduces the effective value while approximately maintaining the maximum value.