Diesel PV Information

Diesel-PV Hybrid Solutions May 2017

What is a Microgrid

DOE*: Definition of a MicroGrid  “A group of interconnected loads and Distributed Energy Resources (DE R) with clearly defined electrical boundaries that acts as a single controllable entity with respect to the grid [and can] connect and disconnect mode .”  from the grid to enable it to operate in both both gridconnected  or island mode. *Department of Energy 

Motivation for Diesel PV Hybrids Indepen dence

Weak Grid

Endusers

Diesel Price

Logistics

Reliable Power Genset OPEX Worldbank program

Subsidies

GO’s &NGO’s Carbon credits

Cost savings

Maintenance

Power Producing Companies, IPPs*

PV-Diesel business case Solar Radiation

IPP = Independent Power Producer GO = Governmental Organization NGO = Non Governmental Organization OPEX = Operating Expenses

Situation Today

12/7/365

Load

Remote diesel power generation in the middle of nowhere e.g. Mine in Namibian Dessert

Switchgear Room

Diesel generators running 24/7

DER: PV-Diesel In Sunbelt countries grid parity already achieved

    s     t     e      k     r     a     M

    s      d     n     e     r     T Autonomous operation vs. Paralleling

   y     g     o      l     o     n      h     c     e     T

    s     n     o      i     t     a     c      i      l     p     p     A

Remote Industries Military Field Camps Agriculture (Irrigation Systems) Tourism (Resorts) Real Estate Utilities / IPP’s

Game changer – PV is getting cheaper

Business case: Invest in adding PV Power to existing or new diesel power generation sites, to reduce OPEX and save fuel. ROI within 4-5 years!

Solution: Add PV Power to diesel genset sites

Photovoltaic Panels

PV Inverters Converting DC into AC voltage

PV Hybrid basics 

PV Inverter is not grid forming!

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PV Inverter cannot operated in island mode

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PV Inverter used for grid tied system (ON Grid)

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In Diesel PV Hybrid system the diesel genset is the grid

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Make sure a PV Inverter is used which is suitable for hybrid operation (no shut downs if U and f is out of range) which could happen in a diesel island operated grid. PV Inverter must have remote control possiblity to adjust kW and cosphi linear in reasonable time.

Diesel PV basics Inverter

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Load

225kW PV Power =15% of 1500kW

Up to ~15% PV can be added as negative load to the gensets No control of PV Inverter required! 500kW

500kW

500kW

Diesel gensets doing loadsharing and sequenzing according to load requirements

Diesel PV basics – What happen when more PV is added? Inverter

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Load

500 kW PV Power =33 % of 1500kW

PV Power is pushing Diesel gensets into Reverse Power! Shut down of the Diesel gensets! 500kW

500kW

500kW

Diesel gensets doing loadsharing and sequenzing according to load requirements

Diesel PV basics – What happen when more PV is added? Common Control Woodward DER CONTROL Inverter kW

Load

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500 kW PV Power =33 % of 1500kW kW

500kW

kW

500kW

kW

500kW

DER CONTROL is collecting actual kW information from each source. In case of to low diesel load and to high PV Penetration DER CONTROL will decrease kW at PV Inverter and Powerfactorcontrol of PV Inverter via com. link

Solution: WOODWARD DER CONTROL

easYgen controlling gensets DER CONTROL CAN Bus Connectivity to: -

DTSC-200 ATS controls easYgen-2x00/3x00 controls LS511/521 controls MFR300 transducer

CAN Fiber converters

3rd party gensets controls are controlling gensets DER Control features: -

Scaleable open solution Configurable, remote control For ON/OFF Grid Application For n+1 diesel gensets various PV Inverter brands supported PV web portal via 3rd party data logger Wind, Storage support on request

DER Control Documentation

Wiring Drawings Functional Description

Application Description

Manual

PV Diesel Brochure Hybrid Power Station Brochure

DER Control - PLC based control solution to operate n+1 gensets plus PV in Hybrid mode - CAN open communication to Woodward controls - 2 E-Net Ports - Port 1 for Interfacing to PV side - Meteocontrol Blue´Log used to communicate to various PV Inverter brands - Port 2 for 3rd Party data exchange -

8 Digital I/O’s 1 x MFR300 inbuilt , to be used for kw sensing of incoming PV feeder HMS Netbiter for Remote services (annual License around 70USD)

MeteoControl Blu’Log https://www.meteocontrol.com/de/industrial-line/datenlogger-bluelog-x-serie/ Blue’Log used to transfer kW /PF setpoints from DER Control to Inverters Supported Inverter types: ABB (Power One - UNO, TRIO. PVI, PLUS, ULTRA ABB (PVS) Inverter blue'Log ABB Pro Modbus inverter blue’Log Delta Inverter blue'Log Fronius Datamanager 2.0 blue’Log GoodWe Inverter blue’Log Huawei Inverter blue’Log Kaco Inverter blue’Log KSTAR Inverter blue'Log LSIS LSPV inverter blue’Log LTi REEnergy PVMaster Modbus inverter blue’Log Power Electronics Inverter blue'Log Satcon Equinox LC Inverter blue'Log

REFUsol (Advanced Energy) Inverter blue'Log Schüco IPE 04 inverter blue’Log Siemens SINVERT PVM Inverter blue'Log SMA String Inverter blue’Log Solaredge Inverter blue'Log SSE Inverter blue'Log Steca Inverter blue’Log Sungrow Inverter blue'Log Sunways (SPT) Inverter blue'Log Zeversolar Eversol TLC Modbus inverter blue’Log SMA Sunny TriPower 60 Inverter blue’Log TMEIC SOLAR WARE Inverter blue’Log Yaskawa Inverter blue’Log

ON/OFF Grid Application -

Used in bad grid application Where it is allowed to export PV power Where it is forbidden to interconnect gensets If grid is down, gensets and PV operated in Hybrid mode LS5 used as a kW transducer and as breaker open/close indicator

Pure Off Grid Hybrid Application

Project Kairo Woodward DER CONTROL Solution

Paper Company Diesel Solar Application More information about Project – click here