Research Of Principle On Measuring AC Parameters By Base Wave Method Under Time Division Technology

What the subject researching is that power energy should be measured with base wave ammeter to power systematic nonlinear user;And that it is high veracious by base wave AC parameters measurement method to those not bad contaminative.It is well known that all kinds of AC parameters including of base wave and harmonics,But the content of harmonics in power systems increase largely with the mass disturbance to power using high-power electric equipment.Which makes wave shape of voltage and current aberrence,So the measurement veracity and reliability decreased largely.At the same time brings out serious infuency to safe run of power system and electric equipment.The power which any non-linear loads consumes can be divided into two sides,One is base power absorbed in power and the other is minus harmonics power. The minus harmonics power is fed back power and turns to power garbage.At present sum of base wave power energy and harmonics in our country.It is reasonable in the point of view the power energy consumed indeed.But it is not reasonable that the margin of harmonics energy deducted from base wave energy has been measured.Aim ai the actuality the subject takes the advice of measuring power energy with base wave ammeter.What is called base wave AC parameters methods can measure accurately not only to non-linear loads but linear one.The subject inducts digital time division technology(PWM),Which is more advantageous at the accuracy and the predigest of hardware than simulant multiplication.What they call measuring power energy reasonably is that measuting except harmonics power energy fed back power.yet it realizes reasonable measurement of power energy which measures by base wave AC parameters method base on digital time division.