easYgen-3000XT Series Training Controller

Introduction The easYgen-3200 provides 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.

Introduction EasYgen uses PID controllers What means “to control”? Measure the actual value Compare with set point Adjustment

Introduction P-control 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 to the control set point. If the gain is configured too high, the result is excessive overshoot/undershoot of the desired value.

Introduction I-control 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 process variable and the set point are the same. This parameter permits the user to adjust how quickly the integral attempts to correct for any offset.

Introduction D-control 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.

Introduction Analog signal Three-position control ECU control The easYgen can control four electric variables Frequency Active power Voltage Power factor cos-phi Available output signals: Analog signal via analog outputs Three-position control Via raise / lower relays ECU control Via CAN bus interface (J1939)

Introduction Analog- / PWM signal Configure the controller for “PID analog” Separately for each controller Proportional gain Integral gain Derivative ration

Parameter configuration example for the PID Controller Parameter configuration example for the PID

Adjust the output signal Controller Enter the corresponding data source for the analog output. AO 01 “11.02 Speed bias [%]” for frequency & power AO 02 “11.03 Voltage bias [%]” for voltage & power factor (cos-phi) Adjust the output signal

Controller Three-position control (raise, lower, off) Configure the controller for “3pos controller” Separately for each controller

Controller Three Step controller The time interval between the raise / lower pulse depends on the actual difference between set point and actual value. Load

Controller Adjust the output signal Configure the LogicsManager for a free programmable relay accordingly LogicsManager input command variables: 03.20 Governor raise 03.21 Governor lower 03.22 AVR raise 03.23 AVR lower Load

Controller ECU control via CAN J1939 Configure the controller for “PID analog” Use following parameters: J1939 Device type ECU remote controlled = On Speed deviation ECU (depending on type)

Setpoints Setpoint 1 is activa as long none of the additional setpoints is activated (via LogicsManager) Internal setpoints are used by default Operation mode „MAN“ uses seperate setpoints

Setpoints External Setpoint via AnalogManager The data source in the AnalogManager need to be configured. The corresponding setpoint has to be active Available signals: “AUTOMATIC” Analog inputs 0/4 to 20 mA, 0 to 2,5 kOhm or 0 to 10 V Discrete inputs Raise/lower set point via momentary switch Interface CANopen or Modbus “MANUAL” Discrete inputs Raise/lower set point via discrete input

Load sharing via CAN bus and/or Ethernet 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 Connection in between the units via CAN bus and/or Ethernet The units need to have different device numbers CAN/ Ethernet Generator 1 CAN/ Ethernet More units Generator 2

Load sharing Active power load sharing Maintain frequency / maintain power utilization factor Active power load share gain may be applied to load sharing (> 1.25 more frequency, < 1.25 more power utilization) Reactive power load sharing Maintain voltage / maintain reactive power utilization factor Reactive load share gain may be applied to reactive load sharing (> 1.25 more voltage, < 1.25 more reactive power utilization)

Load sharing Segment numbering for multiple common busses General segment definition for each genset Alternative segment groups for use with bus tie breakers Only the generator in the same segment number can do load sharing with each other

Load sharing Segment 1 Load Segment 2 Load Segment 3 Load

Load sharing Segment 1 Load Segment #2 TRUE Segment 2 Load Segment 3

Load sharing Segment 1 Load Segment 2 Load Segment #3 TRUE Segment 3

Load sharing System update/missing member monitoring The easYgen provides a function to monitor the communication members on the load share bus. Recognizes not only missing members, it monitors additionally a defined constellation of members. “System update” (by LM 7801 or parameter 13334) The system update function teaches-in all members with the current member constellation on the load share bus. Additionally the missing member monitor of each easYgen is loaded with the correct amount of number. Missing member monitor Compars permanently the current number of members with the number of the last system update. If the current number is lower the missing member alarm trips, and an according LM flag (08.17 Missing members) is set.  Usually this flag initiates the frequency droop operation in the load share system.

Load sharing System update procedure The device, at which the system update has been initiated, sends a system update request for 30 seconds to all members on the load share bus. During this time all members disable their missing member monitoring function and observe, which members are actually participating. This condition will be kept for 30 seconds. After these 30 seconds the number of actual members will be stored (Missing member monitor). Then the missing member monitoring will be enabled again in all easYgens. The system update can be initiated by a soft key button in the HMI by a ToolKit switch in the according diagnostic screen by a LogicsManager equation. The system update flag is available as LM “04.65 System update”

Controller When will the controller activate power and power factor control? This is determined via LogicsManager. With the default setting easYgen will control frequency and voltage in isolated operation power and power factor in mains parallel operation