ORBITAL – Profibus interfaced WIND TURBINE control modules
The Orbital IEC system is a high performance wind turbine controller based on standard industrial
components. Key words are open technology, independence, simplicity, flexibility and nearly
unlimited possibilities for expansion.
Orbital designed various specific modules, focusing onto a standard PLC with integrated Profibus
interface for communicating with the applied modules.
This controller, an integration of standard components with new developed wind turbine specific
control modules, can be installed in any standard wind turbine without an appreciable re-design of
the existing hardware concept of the nacelle- and bottom construction. The small size design of the
IEC modules also permit retrofit applications.
To achieve independence, the Orbital designed high-integrated wind turbine specific control
modules can at any time be replaced by commercial standard modules.
There is no longer a demand for placing all control units traditionally in the control cabinet, the
IEC Profibus opens the possibility to place control at any location where control is suitable, e.g.
both in the bottom cabinet and in the nacelle.
Traditional multi cabling from bottom to top can be replaced by ProfiBus, a 2-wired RS485 based
communication line or on request, fiber optics. This saves cobber and expenses.
The wind turbine control algorithms are no longer a secret of the provider. By using the PLC
related open programming language now the customer at any time has the freedom to create his
own software and adjust or modify the entire control philosophy – without entering a proceeding
technical dialogue with the manufacturer of the hardware.
To improve the functionality and performance of the wind turbine, easily additional control
modules can be integrated into the existing system and implemented into the software.
Profibus DP
���� ProfiBus DP interface ���� Programmable parameter values ���� Minimize number of control modules ���� Compact DIN-rail snap-on mounting ���� Minimize PLC program code ���� Simple wiring and configuration ���� Computed measurements ���� Low cost, easy to install
Scada system Standard PLC
ORBITAL A/S Phone +45 97 35 24 22 E-mail [email protected]
Trykkerivej 5 DK 6900 Skjern Fax +45 97 35 32 85 Website www.orbital.dk
OrbiGrd Grid monitoring module
OrbiMix Timer/counter/temperature module
OrbiGrd
Monitoring a 3-phased grid.
- 3 Voltage inputs.
- 3 Current inputs.
- 2 Analogue outputs. (U/I selectable)
- 2 Digital inputs.
- 2 Relay outputs.
Measurement:
- 3-phased Voltage/Current [V/A]
- Active Power [kW]
- Reactive Power [kVAR]
- Grid frequency [Hz]
- Cos (phi), Power Factor
- Excess indication of measured values
ProfiBus interface
OrbiMix
Monitoring of temperatures and high-
speed counter / timer signals.
- 8 (16) Pt100 sensors. (3-wired)
- 6 Hi speed counter / timer.
- 2 Digital inputs.
- 2 Relay outputs.
Measurements:
- Temperature [°C/°F]
- Revolution [RPM]
- Wind speed [mps/mph]
- Frequency [Hz]
- Excess indication of measured values
- Yaw control
ProfiBus interface
OrbiThy Thyristor control module
OrbiVib Vibration monitoring module
OrbiThy 3-phased dual polarity thyristor trigger unit
for soft motor start and soft generators
connection.
- 3 Thyristor trigger outputs.
- 2 Digital inputs.
- 2 Relay outputs.
- Available as “Stand Alone” module
Measurements:
- Grid frequency [Hz]
- Phase sequence
- Thyristor trigger angle [°]
- Excess indication of measured values
ProfiBus interface
OrbiVib
Vibration / RPM guard.
Monitoring vibration bands, temperatures
and counter / timer signals
Configurable as Stand Alone system.
Available as Lite version without Pt100
inputs
- 1 External dual axis accelerometer
- 8 Pt100 sensors. (3-wired)
- 2 Digital Inputs (encoder / timer).
- 2 Relay outputs.
Measurement:
- 8 fixed LF vibration bands [Hz]
- 1 programmable vibration band [Hz]
- Temperatures [°C/°F]
- Revolution [RPM]
- CW/CCW indication
- Excess indication of measured values ProfiBus interface
OrbiCap
Solid State Power Factor Controller
Thyristor control of 4 Capacitor Banks
OrbiCap provides dynamic control of the
reactive power and improves the grid quality
by transient free switching of the capacitors.
OrbiCap can work automatically in a Profibus
environment or manually as a Stand Alone
System by using the 4 Digital Control Inputs.
Security Klixon
Control:
- 4 Digital Inputs
- 4 Digital Security Klixon Inputs
- Available with Profibus DP interface
12
56
K1
G1
K2G2
TT70N2400
K
A
K
A
L3L2L1
Capacitor Bank 1Capacitor Bank 2
Capacitor Bank 3Capacitor Bank 4
12
56
K1G1
K2G2
TT70N2400
K
A
K
A
L3 L2 L1
12
56
K1G1
K2G2
TT70N2400
K
A
K
A
PL12
PL3PL6
PL9PL11
PL2PL5
PL8PL10
PL1PL4
PL7
Klix
on
fee
db
ack
OrbiCap
M21
2
3
4
5
M21
2
3
4
5
Dig
ital in
pu
ts
PL 5
6 o
5 o
43
2 o
1 o
PL4
6 o5 o
4
3
2 o
1 o
PL 3
6 o5 o
4
3
2 o
1 o
PL 2
6 o5 o
4
3
2 o
1 o
PL 1
6 o5 o
4
3
2 o
1 o
PL 6
6 o
5 o
4
32 o
1 o
J1
2 o
1 o
PL12
6 o
5 o
4
32 o
1 o
PL11
6 o
5 o
43
2 o
1 o
PL10
6 o5 o
4
3
2 o
1 o
PL 9
6 o5 o
4
3
2 o
1 o
PL 8
6 o5 o
4
3
2 o
1 o
PL 7
6 o5 o
4
3
2 o
1 o
N
+24VDC 0 VDC
M11
2
3
Po
we
r
Thyr. Bank 4
Thyr. Bank 3
Thyr. Bank 2
Thyr. Bank 1
ON Bank 4
ON Bank 3
ON Bank 2
ON Bank 1
Temperature Feedback
Klixon
Bank control
Example
OrbiVib 2 Vibration monitoring of up to 8 individual programmable bands
OrbiCap Solid State Power Factor Control
OrbiVib 2
Vibration / RPM guard / Datalogger
Monitoring vibration bands and counter /
timer signals
Configurable as Stand Alone system.
- 1 External dual axis accelerometer
- 2 Digital Inputs (revolutions / encoder).
- 2 Relay outputs.
- USB interface
Measurement: - 8 programmable vibration bands [Hz]
- Revolution measurement [RPM]
- CW/CCW indication (encoder mode)
- Excess indication of measured values
- Real Time Clock
- Data Log Buffer
- Trace buffer for condition monitoring
ProfiBus interface
Bottom / Top Connections via ProfiBus
Meteorological Equipment
Anemometer
- PNP digital output
- Short circuit protected
- Brass / Stainless Steel Construction
- Start wind > 1.0 m/s
- 10 m cable
- 0.75 kg
- Accuracy < 4%
- Calibration on request
Wind Vane
- PNP digital output
- “Black and White” detection
- “In Wind” indication
- Short circuit protected
- Brass / Stainless Steel Construction
- Start wind > 1.5 m/s
- 10 m cable
Wind Direction sensor
- PNP digital output
- 64 sectors
- Short circuit protected
- 1.35 Kg
- Brass/Stainless steel construction
- Start wind: > 1.5 m/s
- Resolution 5.6°
- Gray Code