HDEC2021 Manual

1、HDEC2021 ManualHyundai Digital Excitation Controller HDEC 2021 Users ManualHDEC 2021 User Manual Rev. C DECLARATION OF CONFORMITYWe, the manufacturer,HYUNDAI HEAVY INDUSTRIES CO., LTD1, Jeonha-dong, Dong-gu, Ulsan, 682-792, Koreadeclare under our sole responsibility that the following product;Produc

2、t: Digital Excitation ControllerModel: HDEC2021to which this declaration relates is in conformity with the following EC directives and standards; Applicable EC Directives:Low Voltage Directive (2021/95/EC)EMC Directive (2021/108/EC)Applicable Standards:EN 61010-1 (2021, Second edition)EN 61000-6-2 (

3、2021)EN 61000-6-4 (2021)Detailed specification of the test and declared product are shown in the following test reports; Safety Test (according to LVD):Test Report No.: 10-1333-0087Issued Date: October 5, 2021Test Laboratory: KTL (Korea Testing Laboratory)EMC Test (according to EMCD):Test Report No.

4、: 10-2351-0076Issued Date: June 23, 2021Test Laboratory: KTL (Korea Testing Laboratory)Place: Ulsan, KoreaDeclared Date: November 15, 2021Signature:Signed on Original Declaration FileCONTENTSSAFETY PRECAUTIONGeneral (3)Safety Instruction (4)DECLARATION OF CONFORMITY (5)SECTION 1. GENERAL INFORMATION

5、 Introduction (10)Features (10)System Description (12)SECTION 2. INSTALLATIONGeneral (15)Mounting Requirements (15)Electrical Connections and Terminal Designation (18)Hardware Configuration (27)SECTION 3. FUNCTIONAL DESCRIPTIONInput and OutputDigital Inputs (29)Analog Input and Output (33)Digital (R

6、elay) Output (36)Peripheral Device (37)Operational FunctionRegulation Mode and More (38)Controller and Control Gain (38)FCR Mode (38)AVR Mode (39)VAR Mode (39)PF Mode (39)Droop Compensation (39)Cross Current Compensation (40)Voltage Buildup (40)Soft Start Function (41)Bump-Less Mode Transfer (Intern

7、al Tracking) (42)Generator Capability Curve (42)Under Frequency Limit (42)Over Excitation Limit (44)Under Excitation Limit (46)Stator Current Limit (47)Protective Function (47)Generator Over Voltage (48)Generator Under Voltage (48)Generator Over Current (48)Exciter Over Current (50)Loss of Field (51

8、)Loss of Sensing (51)Loss of Power (52)Diode Fault Monitor (53)Output Short Circuit (54)Mode Mismatch (54)SECTION 4. CONFIGURATIONIntroduction (56)Configuration Procedure (56)Software Installation ant Communication (57)Setup (58)Configuration Tab (59)Generator Tab (61)AVR/ FCR Tab (62)VAR/ PF Tab (6

9、3)Startup/ Auxiliary Tab (64)Gain Tab (66)Digital IO Tab (71)Protection Tab (72)Limit Tab (74)Monitoring and Control (75)Menu Navigation (78)SECTION 5. USER INTERFACEIntroduction (81)Operation (82)SECTION 6. COMMISSIONINGIntroduction (85)Commissioning (85)SECTION 7. TROUBLE SHOOTINGIntroduction (89)

10、Trouble Shooting (89)Appendix A. Configuration Parameter (93)Appendix B. Mathematical Model (99)Appendix C. Specification (107)Revision History (112)HDEC 2021 User Manual Rev. C This page intentionally left blank.SECTION 1. GENERAL INFORMATION INTRODUCTIONHDEC 2021 is an automatic voltage regulator

11、for synchronous machine. The unit is designed based on Hyundais long period (more than 30 years) experience in design, manufacturing and testing of synchronous machine together with newest digital signal process techniques.Besides automatic voltage regulation function, all regulation functions, limi

12、ting functions and most of protective functions for excitation system enable the HDEC2021 unit to be used in a wide range of applications. And this system will be evolved continuously by needs of customers application.FEATURESHDEC 2021 unit has the following features and capabilities.Control and Reg

13、ulation Functionsz Four(4) excitation regulation modes- Automatic voltage regulation mode (AVR mode)- Manual field current regulation mode (FCR mode)- Reactive power regulation mode (VAR mode)- Power factor regulation mode (PF mode)z Hardware voltage buildup function with no external control powerz

14、Soft start voltage buildup in AVR and FCR modez Over excitation limiting (OEL) and under excitation limiting (UEL) in AVR, VAR/PF regulation modesz Stator current limiting (SCL) in AVR, VAR/PF regulation modesz Standard mode and maximum flux mode under frequency limitingz Bump-less operating mode tr

15、ansfer (internal tracking)z Auto-tracking between two HDEC 2021 units (master, backup redundant configuration)now- Notactivatedz Parallel operation with reactive droop compensation or cross-current compensation Protective Functionsz Generator over voltagez Generator under voltagez Generator over cur

16、rent (constant time and inverse time)z Exciter over current (constant time and inverse time)z Loss of filed (under excitation)z Loss of sensingz Loss of powerz Diode fault monitor for open and short rotating diode (DFM)Input and Output Interfacesz No need external control power input basicallyz Exci

17、tation power input (AC or DC)z Single phase or three phase true rms generator voltage sensingz Single phase generator current sensing (1 or 5 amperes nominal)z Single phase 1A cross current loop input- No need additional (external) burden resistor and circuit breaker information z Analog inputs (+/-

18、10Vdc, or 4 to 20mAdc) for remote control or PSSz Seven(7) digital inputs (fixed function)z Three(3) programmable digital inputsz PWM excitation output power (rated 15A60deg.C)z Three(3) programmable relay outputsz One(1) watchdog relay outputMonitoring Parameters via Front Panel Displayz Generator

19、voltagez Generator currentz Active powerz Frequencyz Power factorz Excitation currentz Excitation ON/OFF informationz Operational limitation messagesz Master, Backup (Primary, Secondary) unit conditionz Active operating mode and setpoint of active operating modez Fault messagesz Firmware Version num

20、berMonitoring items via Front Panel LEDz Processor ON/OFF (controller ON/OFF)z Local and remote control modez Setpoint limit and operational limiter informationz Alarm/Fault statusesCommunication Portz RS-232 port for factory setup and site configurationz CAN port for redundant system (Not supported

21、 now)Excitation input power is normally supplied from the excitation transformer connected with generator output terminals or supplied from a permanent magnet generator (PMG). Some case, excitation input power may be supplied from external utility. Excitation output power of HDEC2021 unit is supplie

22、d to excitation winding of main machine or exciter machine after rectification and smoothing process through power module (switching IGBT) controlled by regulation output signal (PWM duty) of HDEC2021 units software function block.Control PowerNo external control power is normally required for HDEC2

23、021 unit since the control power is internally supplied from excitation input power. For few special application, either ac or dc power source may be supplied externally. Control power is used as driving power of each component in the HDEC2021 unit. See appendix C (Specification) for more detail inf

24、ormation.Sensing Input and Auxiliary InputThe voltage and current sensing signals for HDEC2021 unit are measured from sensing transformer installed on generator or generator external cubicle. Both of single phase or three phase voltage sensing configuration is supported by HDEC2021 unit. In case of

25、current sensing system, single phase sensing is available and cross current loop sensing is also available. Excitation voltage and excitation current signals are sensed by measuring device installed internally.For remote control application via analogue signal, +/-10Vdc or 4 20mA signal is available

26、 and theHDEC200 unit also provides.Digital Input and OutputMost of control Tasks such as Excitation ON/OFF, Auto/Manual and Setpoint Adjust are achieved via digital input signal. The HDEC2021 unit provides seven digital inputs for predefined functions and three digital inputs for programmable functi

27、ons. Digital inputs can be controlled with dry contactor or PLC open collector signal. The HDEC2021 unit provides three programmable output relays and one watchdog relay also.CommunicationsThree communication ports are provided for initial configuration in the factory (or commissioning in site), for

28、 data exchange between HDEC2021 units for redundant system and for purpose of remote access. The communication ports consist of RS232 (COM0), CAN (COM1) and RS485 (COM2) ports.User InterfaceThe HDEC2021 unit provides two kinds of user interface devices which consist of front panel LCD display and ke

29、y pad (buttons). Most of operating information such as analogue signals, fault events are displayed on the LCD display panel. A few of setup functions are supported via front panel keypad. The upgrade for key pad function (configuration of essential parameter) and monitoring function (display of mor

30、e various parameters) are planed later.The Configuration and monitoring software for HDEC2021 unit called HDCM is connected through RS232 communication port on the front panel. The HDCM software provides very useful functions such as parameter configuration, setpoint adjustment, control gain estimat

31、ion and real time measurement for factory setup and site commissioning.Terminal block number: F2 or F2 (Labeled F-)1: terminal block numbers consist of three parts called 2: is written at front panel side, and is written at rear side when the unit is viewed from left side 2: only and are written wit

32、h no space and without , in normal case ex: F2This page intentionally left blank.This input determines the status of Excitation ON or OFF. If this input circuit is closed, the HEC2021 unit regulates the excitation power through the power module (IGBT). If this input is opened, the excitation output

33、power is cut off. Continuous contact must be accepted for this input command.This input may be closed while the prime mover speed is higher than specified value (typically 70 90% of nominal), If the prime mover speed is lower than specified value, or if the generator heavy fault signal is activated,

34、 this input must be opened.Especially, in cases that Loss of Power is enabled and Loss of Power Option is configured with Reset Soft Start Time, this input may be always closed in case of simple standardization application only. For more information, see Loss of Power functional description.Manual s

35、elect command (non Automatic mode)This input determines the basic regulation mode of the HDEC2021 unit. If this input circuit is closed, the HDEC2021 unit is operated as FCR Mode. Otherwise, the unit is operated as either AVR Mode, VAR Mode or PF Mode. Continuous contact should be accepted for this

36、input command.FCR Mode is prior to all operating modes and functions. In the FCR Mode, all limitation functions and some protective functions are disabled.If operating mode is not FCR Mode, other digital input and configuration parameter(s) determine the operating (regulation) mode of the HDEC2021 u

37、nit.Raiser, Lower commandThis input(s) adjusts the setpoint (reference) of active operating mode. The Raise command increases the setpoint, and the Lower command decreases the setpoint of active operating mode. These actions are enabled while corresponding input circuit is closed. If the setpoint of

38、 active operating mode reaches to its max Setpoint or min Setpoint, these actions are disabled. Only momentary contact must be accepted for these input commands.The total ramping time (time required that the setpoint traverses from minimum to maximum setpoint) is determined by Setpoint Traversing Ra

39、te parameter of active operating mode.MCB (Machine circuit breaker) statusThis digital input channel detects ON/OFF status of the machine (generator) circuit breaker which connects the generator to the electrical bus or other generator(s). If this input channel is used, normally opened (NO) auxiliar

40、y contact of generator circuit breaker must be connected.If this input circuit is closed, the HDEC2021 unit selects either Droop Compensation or Cross Current Compensation depending on CCC Enabled parameter while the operating mode is not FCR Mode.If MCB status circuit is opened, the HDEC2021 unit d

41、isables both of Droop, Droop Compensation andIf both of MCB status, GCB status are closed and VAR/PF Mode is configured with VAR or PF, the HDEC2021 unit operates either VAR Mode or PF Mode while the FCR Mode is not selected. The VAR Mode or PF Mode is selected by the setting of VAR/PF Mode paramete

42、r. Otherwise, the HDEC2021 unit operates AVR Mode.Due to safety reason, we recommend that this digital input channel be connected with the logical combined status of some users circuit breakers which determine VAR or PF mode depending on the power grid configuration.Programmable #1, #2, #3 input (Co

43、mmand or Status)The HDEC2021 unit provides three programmable input channels for system flexibility. Any functionpre-defined by HDEC2021 software can be assigned for the programmable digital input channel.If the input circuit is closed, the assigned function corresponding to its digital input channe

44、l is enabled (activated).The useable programmable functions are listed and described below.zNone:No function is assigned and no action is executed.zPreposition:If corresponding input circuit is closed, the HDEC2021 unit changes the setpoint of all four operating modes (AVR, FCR, VAR and PF) to the p

45、re-defined Preposition Setpoint of each operating mode. This function is useful for initialization of setpoint adjusted by user or for the application of permanent fixed setpoint. Momentary or continuous contact may be accepted for this function.In Some cases, this function is used to prevent excess

46、ive over voltage when circuit breaker is opened from the condition that the generator operates with FCR Mode, and heavy load.zSecondary Unit:This function determines that the HDEC2021 unit operates with primary (master) or secondary (backup) unit for redundant application configured with two HDEC202

47、1 units. If a corresponding input circuit is closed, the HDEC2021 unit operates with the Secondary Unit. The secondary unit always tracks the Primary Unit via CAN communication. This function is not supported now, and the revision for this function is planed later. Continuous contact may be accepted

48、 for this function.zLocal Request:This function determines that the local command (physical digital input command) is priority. The HDEC2021 unit can be controlled (commanded) from three directions via three devices which are digital input commands of left panel (local command), COM0 port (RS232) an

49、d COM2 port (RS485, read only now).If a corresponding input circuit is closed while the HDEC2021 unit is controlled remotely, then the commandsAlarm Reset commandWhen the input circuit is closed, this input clears the latching status of all fault events containing the output relay which assigned for

50、 fault event, internal software fault flag, front panel fault messages and fault LED. Momentary contact may be accepted for this command.Analog Input and OutputThe HDEC2021 unit measures nine analogue signals. The seven signals are external-inputs and two other signals are internally measured. The p

51、rocessing procedure of analogue signals is described below.First, all analogue signals are converted to suitable low level by means of resistive divider, shunt resistor, current transformer or current sensor. Next the analogue signals are transmitted to ADC (analogue to digital converter) through op

52、erational amplifiers, analogue filter circuits and MUX (multiplex). Finally, DSP (digital signal processor) performs quantization, digital filtering and signal conversion for the analogue signals. HDEC2021 unit performs control and other functions by using of these signals.The Analogue signals measu

53、red by HDES2021 unit are listed below:z Three phase-phase generator voltages (A-B phase, B-C phase, C-A phase, C-A phase)z Generator B phase currentz Cross current loop inputz Auxiliary voltage input and Auxiliary current inputz Dc link voltage (excitation voltage)z Excitation currentGenerator volta

54、ge sensingThis signal is normally measured from sensing voltage transformer installed on generator inside or generator circuit breaker cubicle.The HDEC2021 unit provides three voltage sensing range 110Vac, 220Vac and 460Vac.The HDEC2021 unit automatically selects voltage measuring range by using the

55、 turn ratio of sensing voltage transformer and the generator nominal voltage.The unit supports both single phase and three phase sensing system. In case of three phase sensing system, the averaged of three phase-phase voltage is obtained for the purpose of regulating. In case of single phase sensing

56、 system, the A-C phase voltage is obtained. We recommend that user designs three phase sensing system for reason of more stable (smaller feedback ripple) voltage feedback and more fast regulation response.The combination of true rms technique and optimum digital filtering technique achieves very sta

57、ble and fast control of the generator voltage even though that the sensing voltage has very high harmonic component.HDEC 2021 User Manual Rev. CGenerator B-phase current sensingThis signal is measured from current transformer having 1A or 5A secondary current. And the current transformer must be ins

58、talled on generator B-phase. This signal is used for reactive droop compensation, VAR/PF control and other functions.Cross current loop inputThe current signal called cross current loop input for reactive differential compensation (for reactive load sharing between generators) is measured from current transformer havin