37397 a eg3200 section 8 controller (nxpowerlite)

8/13/2019 37397 a EG3200 Section 8 Controller (NXPowerLite)

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Proprietary Information


easYgen-3200 TrainingSection 8 - Controller

marked

CERTIFICATE ofDesign Assessment

byABSAmerican Bureau of Shipping & Affiliated Companies


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ContentsInt roduct ion

Contro l ler

Set Points

Load Shar ing

FAQ

Exercises

sl ide 3

4

13

17

24

30


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Controller

Load sharing

Set points

FAQ

Exercises

The easYgen-3200 provides the user with a selection of bias signals

to operate numerous speed controls and voltage regulators. The

easYgen-3200 may be configured to use analog voltage and/or

current signals, PWM signals, or raise/lower contacts to increase or

decrease the speed and voltage reference point.

IntroductionIntroduction


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P (Proportional gain)

The proportional gain indicates the closed-loop control system gain.

By increasing the gain, the response is increased to permit larger

corrections to the variable to be controlled. The further out of tolerance

the process is the larger the response action to return the process tothe control set point. If the gain is configured too high, the result is

excessive overshoot/undershoot of the desired value.

Controller

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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I (Integral gain)

The integral gain represents the I-component of the PID controller. The

integral corrects for any offset (between set point and process variable)

automatically over time by shifting the proportioning band. Integral gain

automatically changes the output requirements until the processvariable and the set point are the same. This parameter permits the

user to adjust how quickly the integral attempts to correct for any

offset.

Controller

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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D (Derivative ratio)

The derivative represents the D-component of the PID controller. By

increasing this parameter, the stability of the system is increased. The

controller will attempt to slow down the action of the throttle in an

attempt to prevent excessive overshoot or undershoot. Essentially,derivative acts as the brake for the process.

Controller

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Controller

TIME

63

62

61

60

59

58

57

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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ControllerAnalog / PWM controller bias signalThe analog outputs are used for the bias signals

Speed bias (F/P control)

Voltage bias (V/PF control)

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Three step controller (raise/lower/off)

- Time pulse (minimum energize time)

- Gain factor

- Dead-band adjustment

- Expand dead-band function

Frequency / power controller and Voltage / power factor controller (raise /

lower) are possible through configuration of the LogicsManager.

Controller

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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ControllerThree Step controller

The time interval between the raise / lower pulse depends on the actual

difference between set point and actual value.

1 2 3 4 5 6 7 8

Raise/lower pulse

Time delay

Difference between setpoint and real value

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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ControllerController tuning

The analog and three-step controllers should ramp in a similar manner as

shown below when properly tuned.

120 Volts

90 Volts

Point at which

Controller takes

control

Ramp of Voltage

Controller isdetermined by the

Gain30 Volts

0 Volts

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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External Set points in AUTOMATIC operation mode

Frequency set point

Voltage set point

Power set point

Power factor set point

Analog inputs

0/4 to 20 mA or 0 to 500 Ohm

Discrete inputs

Raise/lower set point via momentary switch

Interface

CANopen or Modbus

Set points

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Analog Inputs

User defined is in relation to the

Rated power (in %).

0 Min. value ( 0% of rated)

10000 Max. value (100.00 %)

Set points

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Discrete Input for raise/lower

The power ramp always starts at the current measured value. If the breaker

is opened this set point automatically resets to 0 kW.

Set points

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Interface power set pointSet points

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Load sharing over the CAN bus

Real load sharing is performed as a utilization factor. (Generators

compare measured load:generator rating)

Reactive load sharing is performed as a utilization factor.(Generators compare measured reactive load:generator rating)

Maximum of 32 units can load-share

Split bus applications are possible with up to four bus bars (different

segment numbers)

Load sharing with GCP-30 series i s notpossible !

Load sharing

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Load sharingConnection between the units via CAN 1

CAN 1

Generator 1

Generator 2More units

CAN 1

The units need different

device numbers

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Load sharingActive power load sharing

Maintain frequency / maintain power utilization factor

Weighting factor may be applied to load sharing

(> 50% more frequency, < 50% more power utilization)

Reactive power load sharing

Maintain voltage / maintain reactive power utilization factor

Weighting factor may be applied to reactive load sharing

(> 50% more voltage, < 50% more reactive power utilization)

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Load sharingSegment numbering for multiple common busses General segment definition

Alternative segment groups for use with bus tie breakers

Only the generator connected to the same segment number may

load share with each other

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Load sharing

Load

Load

Load

Segment 1

Segment 2

Segment 3

Controller

Loadsharing

Set points

FAQ

Exercises

Introduction


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Load sharing

Load

Load

Load

Segment 1

Segment 2

Segment 3

Segment #2 TRUE

Controller

Loadsharing

Set points

FAQ

Exercises

Introduction


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Load sharing

Load

Load

Load

Segment 1

Segment 2

Segment 3

Segment #3 TRUE

Controller

Loadsharing

Set points

FAQ

Exercises

Introduction


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How can I configure my controller bias signal output?

How can I limit the generator load when the cooling water

temperature is below a desired threshold?

FAQ

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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There are two possible types:

- Three step controller (raise / lower outputs)Relays via LogicsManager

- Analog controller (bias signals) / PWM Analog output

FAQ

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Three step controller (raise / lower outputs)LogicsManager

Select freely configurable relay

Parameters for frequency control

LogicsManager input commands:

03.20 Governor raise 03.22 AVR raise

03.21 Governor lower 03.23 AVR lower

FAQ

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Analog controller (bias signals)Analog output

Parameters for frequency control

Data source:

00.02 Voltage bias

00.03 Speed bias

Configure analog output

FAQ

Test controller range

with initial state

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Use the warm up limit of the active load controller

FAQ

The easYgen controls the warm up load limit (in % of rated power)

whenever the measured value of the analoginput drops below the

threshold.

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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The warm up load limit permits a partial load warm up with a lower

set point whenever the generator runs parallel to mains.

FAQ

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Configure the analog output manager (FlexOut)

Speed bias signal for analog output 1 range: 37 V

Exercise:

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Configure the analog output manager speed bias signal for

analog output 1 range: 37 VHardware type user defined with min. / max. configuration

complete output range is +/- 20 mA (+/- 10 V)

3 V 65.00% min. value7 V 85.00% max. value -10V 0V 10V3 7

Exercise: Solution

Controller

Load sharing

Set points

FAQ

Exercises

Introduction


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Note:

Information contained herein is intended for and appropriate to the purposes of this publication/presentation. Woodward reserves the right to update or otherwise revise any portion of this publication at any time. Technical data and

detailed information is available in Woodward product specs. Specific reliance should be given only to information contained in purchase order(s), other contractual document(s), or information otherwise expressly represented in

writing by Woodward as correct and accurate for the specific facts, circumstances and applications.

Other sections are :

1 Overview

2 Hardware and I/O

3 Operational Modes

4 Configuration and ToolKit

5 Communication

6 LogicsManager

7 Analog Manager

8 Controller

9 Synchronization and breaker

10 Application

11 Sequencing

End of this presentation

Thank you for your attention

37397 a eg3200 section 8 controller (nxpowerlite)

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