Multiphase functional generator

 

(57) Abstract:

The generator can be used in conversion devices good as utility power output voltage, modeling and computing devices. The purpose of the invention is to simplify, improve reliability and economic efficiency. The generator consists of multiple bridge inverters constituting the bit blocks are connected on the output in series with each other and a load element. The power of each cell is from the independent voltage source or from mnogolyudnogo Converter. The synthesis of the shape of the output voltage is stepped its approximation, and control of the inverters is based on the ternary notation from block job mode. 1 Il.

The invention relates to electrical engineering, computer engineering and automation and can be used in conversion devices good as utility power output voltage, for example, for stable drive, when generating a periodic trigonometric functional stresses for modeling and computing systems for high power installations with an output kV the completion of the reduction mass-dimensional indices devices use high-frequency intermediate energy conversion and representation of integers natural numbers using a symmetric multivalued code. This may be formed all the voltage levels required to generate a given periodic function, approximated by a stepped shape of the curve.

The drawbacks are in principle required in the transformer and the keys AC, which increases the cost and weight and dimensions of the device and reduces its reliability.

Closest to the proposed is a functional generator [3] uses the ternary notation in the control algorithm and synthesis of the output voltage of the inverter, and also uses high-frequency power conversion, and power demodulator performed in a bridge circuit.

The disadvantage of the prototype is the use of a large number of keys AC, including in bridged demodulator.

The task of the invention is to simplify the functional generator. This is achieved through the use of a number of isolated primary power sources.

The drawing shows a diagram of one phase of the functional generator. In the reception generator built on digit scheme. Every bit as the unit consists of bridge investment is 4 and heat recovery diodes 4144. The inverter output circuits are connected in series between a load-carrying element 2. Control of the inverter is supplied from block 6 of the task of the modes.

The generator works as follows.

The voltage sources 5 and 5' are related to each other as 1:3. In the algorithm, key management transistors in inverter cells use the ternary system (0, 1). When the switching transistor load element 2 voltage sources 5 and 5' at different points in time can be, deducted or excluded, forming on the different load speed-approximating unipolar or bipolar, periodic or non-periodic voltage. The accuracy of the approximation depends on the number of used bits. The maximum number of steps (K) of one polarity can be calculated by the formula:

,

where n is the number of digits.

When switching, for example, keys 32and 33in the inverter 1 and 3 keys1and 33in the inverter 1' adds the element 2 voltage sources 5 and 5'. When switching same diagonal pairs of keys in both inverters is Venta voltage sources for example 5, in the inverter 1 to open the keys belonging to one of the floors of the bridge 3134or 3233. Unit 6 set mode generates a set of pulses in each discrete time for key management overhead of cells in accordance with the selected approximating function.

Functional generator differs from the known analogs and prototypes as follows.

1. The scheme contains no bulky power wrap elements (transformers), which improves overall mass properties generator.

2. The scheme does not contain keys alternating current, which reduces the cost and increases the reliability of the device.

3. The scheme is not critical to the output frequency of the function generator, because there is no transformers.

4. Increased efficiency

The most promising direction is the use of functional generator is the transformation of solar energy, chemical energy batteries, in which there is the possibility of forming a separate isolated voltage sources into the energy of an alternating current with an arbitrary form of voltage.

Multi-phase function generator containing a chain of sequential matching last bit blocks, characterized in that it introduced the power source and the power setting mode, each bit block is made in the form of a bridge inverter, the power source is designed as a group of independent sources of voltage, the conclusions of each of which are connected to respective inputs of the power of the eponymous bridge inverters, control inputs which are connected to the outputs of block job mode.

 

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