Fluvius Telecontrole

Flemish grid operator Fluvius requires remote regulation of active and reactive power output of installations with a total output of greater than 1 MVA, 400 kVA in some congestion areas or 250 kVA of BESS. The Teleport can be configured as a Customer RTU (Klant RTU) for Fluvius Telecontrole V4 and V5, the two most recent versions. This means that the Teleport is able to receive commands from Fluvius, limiting the exchange of active and reactive power at the grid connection.

Configuration requirements

A Teleport device can be configured as a Customer RTU when the conditions in this section are satisfied. Ensure you are familiar with the technical specifications of the Customer RTU before proceeding.

Fluvius

• Fluvius has performed a grid study on the site. The report of this study has been shared with Withthegrid.
• The Fluvius RTU (Telecontrolekast) has been installed.
• The configuration of the IP address of the DNB RTU server is known (by default, the IP address is set to 172.31.254.101).

Asset owner

• The Teleport asset library supports available solar, wind, battery and power meter assets.
• Available solar, wind and battery assets meet Withthegrid’s requirements for active control.
• A power meter is installed at the grid connection. If the study report requires a reactive power control mode that depends on the grid voltage, a measurement on the MV grid may be required.

V5 only

• The Teleport is connected to relays which physically disconnect flex production and flex consumption assets from the grid independently. These are to be used in case of a Fluvius emergency stop.

Note

When using Telecontrole V4, disconnection of the assets in case of an emergency stop is handled by the mains decoupling relay which is directly connected to the Fluvius RTU through a separate digital I/O interface. The Teleport only handles communications over the IEC-60870-5-104 interface (B1 and B4 in the technical specification) and thus cannot operate the mains decoupling relay.

Telecontrole data over Modbus TCP

The Teleport can be configured to relay Fluvius Telecontrole process data to a local Modbus TCP server. By default, the Modbus TCP server is not running. If it is, a Modbus TCP client can retrieve data from the registers below on Unit ID 200. See our conventions for the Modbus TCP server. Additionally, note the following:

• All values are given in our own sign convention, which differs from that of Fluvius.
• The registers for active and reactive power measurements reflect the values which were most recently reported to Fluvius over the IEC-60870-5-104 interface. The measurements are updated at least every 30s, or upon change of at least 1% of the site’s nominal active power. For real-time monitoring, you can read out power measurements of the individual assets.
• For power limits: ±100% means Fluvius is not imposing limits. This uncapped default is positive for power going from site to grid and negative for power going from grid to site.
• When Telecontrole V4 is configured, the registers for reactive power limits should be interpreted as direct setpoints with a default value of 0.

Registers

Name	Address start	Size	Type	Unit	Access	Note
Controller type	0	1	uint16		R	11 = Fluvius DSO interface
Controller identifier	1	30	ASCII string		R	Uniquely identifies the controller within the controllers connected to this Teleport device.
Reactive power control mode	31	1	uint16		R	1 = Direct Fluvius Setpoints 2 = Fixed Power Factor 3 = Q(P) 4 = Q(U)
Active power grid feedin limit	32	1	int16	0.01%	R	Active power injection limit at the grid connection point, imposed by Fluvius
Active power grid consume limit	33	1	int16	0.01%	R	Active power consumption limit at the grid connection point, imposed by Fluvius
Active power asset feedin limit*	34	1	int16	0.01%	R	Active power injection limit of flex assets, imposed by Fluvius
Active power asset consume limit*	35	1	int16	0.01%	R	Active power consumption limit of flex assets, imposed by Fluvius
Reactive power injection limit	36	1	int16	0.01%	R	Reactive power injection limit at the grid connection point, imposed by Fluvius (Remote)
Reactive power consume limit	37	1	int16	0.01%	R	Reactive power consumption limit at the grid connection point, imposed by Fluvius (Remote)
Reactive power control mode	38	1	uint16		R	1 = Local 2 = Remote
RTU test command	39	1	uint16		R	1 = Inactive 2 = Active
Emergency stop consume active*	40	1	uint16		R	1 = Inactive 2 = Active
Emergency stop feedin active*	41	1	uint16		R	1 = Inactive 2 = Active
Reactive power of solar assets*	42	2	int32	VAr	R	Aggregate reactive power of all solar assets
Active power of solar assets*	44	2	int32	W	R	Aggregate active power of all solar assets
Reactive power of wind assets*	46	2	int32	VAr	R	Aggregate reactive power of all wind assets
Active power of wind assets*	48	2	int32	W	R	Aggregate active power of all wind assets
Reactive power of CHP assets*	50	2	int32	VAr	R	Aggregate reactive power of all CHP assets
Active power of CHP assets*	52	2	int32	W	R	Aggregate active power of all CHP assets
Reactive power of battery assets*	54	2	int32	VAr	R	Aggregate reactive power of all battery assets
Active power of battery assets*	56	2	int32	W	R	Aggregate active power of all battery assets
Reactive power of EV assets*	58	2	int32	VAr	R	Aggregate reactive power of all EV assets
Active power of EV assets*	60	2	int32	W	R	Aggregate active power of all EV assets
Reactive power of flex consumption assets*	62	2	int32	VAr	R	Aggregate reactive power of all flex consumption assets
Active power of flex consumption assets*	64	2	int32	W	R	Aggregate active power of all flex consumption assets
Reactive power of flex production assets*	66	2	int32	VAr	R	Aggregate reactive power of all flex production assets
Active power of flex production assets*	68	2	int32	W	R	Aggregate active power of all flex production assets

*: This property is only used in Telecontrole V5. The register will return null is V4 is configured.