4 respects, detailed analyse faces the motion of servo driver to control a solution
[introduction]Intelligent sport control is height nimble and the core that can make continuously, punching machine of conveyer belt, extruding reachs from pump in industrial spot arrive again robot, electric machinery and electric machinery driver have decisive effect. Electric machinery is extremely general already in our life, install electric machinery to have on 100 million about now, add deploy newly every year to make an appointment with ten million stage.
Intelligent sport control is height nimble and the core that can make continuously, punching machine of conveyer belt, extruding reachs from pump in industrial spot arrive again robot, electric machinery and electric machinery driver have decisive effect. Electric machinery is extremely general already in our life, install electric machinery to have on 100 million about now, add deploy newly every year to make an appointment with ten million stage.
Servo is acting important role in industrial system, electric machinery driver conveys electric machinery data through collect and be being passed, supported digitlization transition and nimble production effectively, and pass improve deploy electric machinery can effect produces major effect to can developing continuously with reducing carbon to discharge. 30% what the sources of energy that industry wastes takes total the sources of energy about, and electric machinery wasted the industrial the sources of energy of about 70% , if every electric machinery passes proper load to match,reach electric machinery driver with as far as possible efficient means drive, dosage of global the sources of energy criterion hopeful decreases 10% .
ADI is newest on the solution of the line ” can last what ADI faces high-powered servo driver motion controls a solution ” control electric machinery of system, industry to control medium electric current from industrial electric machinery join of net of aether of feedback, industry and network safety 4 respects, introduced the complete set solution that intelligence moves for everybody.
Gearshift driver and the main trend that are much axis machinery of the foundation with this are forward more extensive, more transparent interconnection each other knows stride, expression is nowadays link has through aether net in more comprehensive industry system, this had an insight into to bring huge advantage with productivity to control, real time, but also posed the new challenge related to network safety.
Graph 1: Framework of driver of gearshift electric machinery
Frame of system of driver of gearshift electric machinery is summarized
Graph give typical examples of 1 block diagram in the typical signal catenary of high-powered gearshift driver, have a few big main module roughly:
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High-pressured power source
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Control power supply
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Coder
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Controller
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Three-phase inverter
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Signal segregation
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Bring full control
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Safe join
Inverter and component of control signal key are summarized
In inversion and control signal catenary, ADI has extensive product line and provided a system rash club sex, graph 2 show a certain number of crucial parts of an apparatus in giving signal chain:
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Electric current detects
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Coder
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Coder RS485 interface
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Controller
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Industrial aether net joins
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Power source
Graph 2. Inverter and give typical examples of component of key of control signal catenary
The crucial parts of an apparatus in the about framework of driver of gearshift electric machinery a few big module in the first part and signal catenary, documentation ” can last what ADI faces high-powered servo driver motion controls a solution ” in made detailed introduction, suggest download documentation is examined.
Voltaic feedback is the main component of function of control of servo driver whole, when the design that has voltaic feedback way, need notices a few parts:
1) electric current measures need and PWM periodic synchronism, do not introduce ripple of electric current of high frequency switch feedback method as far as possible, use normally 14 measure resolution to 16 phasic to at least two electric machinery at the same time sampling, defer is low so that operating ring road can be inside voltaic PWM cycle,make to small second class answer;
2) low maladjusted drift is a main character, this conduces to what decrease as far as possible to be caused by alternate with deflection any torque ripple;
3) electric current measures need to be kept apart or undertake in inferior voltage system and have Gao Gongmo capacity.
A few kinds of when voltaic feedback comes true different methods
The implementation method that electric current feedbacks is not exclusive, roughly OK and wraparound it is a few kinds as follows:
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Series connection spreader detects
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Segregation electric current detects
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Kind photograph billabong resistor detects
Voltaic voltage feedback is main parts of an apparatus and norms
The important norms of a certain number of parts of an apparatus in listing electric current of servo electric machinery and voltage feedback design below:
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ADuM770x: Keep apart type Σ – ? ADC, exceed low maladjusted drift to conduce to reduce torque ripple.
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ADuM4195-1: Use at the new-style segregation amplifier of voltage and voltaic feedback. Connect
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AD7380: Advanced double passageway is synchronous 16 or 14 SAR ADC
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AD8411: The Gao Gongmo electric current that applies to inferior voltage system detects amplifier
Graph 3. Give typical examples of voltaic feedback plan
Feedback of voltage of the method that feedback of electric current of the 2nd part implements, electric current is main parts of an apparatus and norms are asking documentation ” can last what ADI faces high-powered servo driver motion controls a solution ” in all made detailed introduction and give an example, download documentation to examine please.
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