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Technical Information
Integrated Plant Control and Q on Demand 24/7
SUNNY TRIPOWER
Reactive power is necessary for the stability of the utility grid. With the functions "Integrated Plant Control" and
"Q on Demand 24/7", it is possible that SMA inverters of type Sunny Tripower feed in reactive power during operation
and at night. The following table provides an overview of the device types and firmware versions for which the various
functions are available.
Device type
STP 15000TL-10/
STP 17000TL-10
STP 15000TLEE-10/
STP 20000TLEE-10
STP 20000TL-30/
STP 25000TL-30
IPC_STP-TI-en-14 | Version 1.4
Reactive power provision
0
to 0
overexcited
underexcited
from firmware version
2.60.02
from firmware version
2.61.06
from firmware version
2.80.04
Q on Demand 24/7
from firmware version
2.60.02
from firmware version
2.61.06
from firmware version
2.82.03
Integrated Plant Control
from firmware version
2.62.04
from firmware version
2.63.03
from firmware version
2.82.03
ENGLISH
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Table of Contents
Related Manuals for SMA STP 17000TL-10
Summary of Contents for SMA STP 17000TL-10
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Page 1: Technical Information
Reactive power is necessary for the stability of the utility grid. With the functions "Integrated Plant Control" and "Q on Demand 24/7", it is possible that SMA inverters of type Sunny Tripower feed in reactive power during operation and at night. The following table provides an overview of the device types and firmware versions for which the various functions are available. - Page 2 1 Definition of Active Power, Reactive Power and Apparent Power SMA Solar Technology AG Device type Reactive power provision Q on Demand 24/7 Integrated Plant Control to 0 overexcited underexcited STP 12000TL-US-10 / from firmware version from firmware version from firmware version STP 15000TL-US-10 / 2.80.00...
- Page 3 SMA Solar Technology AG 1 Definition of Active Power, Reactive Power and Apparent Power 1.2 Reactive Power Q With a phase shift phi of 90°, the maximum current occurs precisely when the voltage crosses zero; then the power oscillates between positive and negative values, which is why the average value over time is zero. This is known as pure reactive power Q (unit: Var, from the French volt-ampère-réactif) which moves "back and forth"...
- Page 4 In many cases, the grid operator will require control in accordance with a Q(V) characteristic curve. SMA inverters with Integrated Plant Control are capable of representing this Q(V) characteristic curve without performing any measurement at the grid-connection point. The inverter can automatically compensate equipment installed between the inverter and the grid-connection point.
- Page 5 SMA Solar Technology AG 2 Design of PV Farms 2 Design of PV Farms 2.1 Typical PV Farm with Central PV Farm Control Decentralized PV farms must be able to control the flow of reactive power. It is not enough for each inverter to comply with the characteristic specified by the grid operator because all of the equipment (cables, transformers, switching equipment, etc.) has an influence on the characteristic curve of the PV power plant as a whole.
- Page 6 Existing PV systems can be retrofitted via a software update. Functionality of Integrated Plant Control Despite the utmost care in the production of the function Integrated Plant Control, SMA Solar Technology AG does not provide any statutory warranty for the functionality of Integrated Plant Control.
- Page 7 3.2 Entering Key Values in Sunny Design You can find a detailed manual for Sunny Design at www.SMA-Solar.com. Proceed as follows to enter the key values in Sunny Design: 1. Open Sunny Design and log in as a user.
- Page 8 3 Configuring Integrated Plant Control SMA Solar Technology AG ☑ The tabs for entering the information on cables and the MV transformer are activated in the area Configuration. 10. Enter the key values for the cables used in the tabs Lines LV1, Lines LV2 and Lines LV3.
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Page 9: Parameter Description
• For error-free functioning of Integrated Plant Control, the system must be modeled correctly using Sunny Design. • If required, and subject to a fee, SMA Solar Technology AG can provide assistance with the correct calculation of the system parameters and with system parameterization. - Page 10 3 Configuring Integrated Plant Control SMA Solar Technology AG Storage of Documentation The system settings should be properly documented and stored so that they can be easily retrieved. Example: Device type PV system Impedance compensation and serial Nominal apparent Ohmic resistance for...
- Page 11 SMA Solar Technology AG 4 Q on Demand 24/7 4 Q on Demand 24/7 The "Q on Demand 24/7" function keeps the inverter on the utility grid over night. It is powered by the grid in order to provide reactive power (III)* . Additionally, in feed-in operation, the inverter can provide up to 100% of its apparent power as reactive power (II) over and above its normal operating range (I).