20 OCTOBER 2017, INTERNATIONAL CONFERENCE CLEAN ENERGY FOR SMART CITY, RIGA Energy Storage and Other Energy Control Solutions Enerģijas uzkrāšanas iekārtas un citi enerģijas vadības risinājumi Tālivaldis Podiņš, ABB SIA
Definition Combination of: an energy storage device (battery) a power converter (ESI) a controller which facilitates the charge and discharge of the battery based on certain algorithm The energy is stored in the battery bank or retrieved from it to achieve certain tasks October 19, 2017 Slide 2
Definition Application of energy storage system: Short terms (seconds) or long term (hours) depending on the battery discharge duration Based on installed power or stored energy High power Power Quality Improved grid resilience Seconds Minutes High energy Energy management Decouple generation from demand Hours Voltage & frequency regulation Transient smoothing Reactive power control Synchronous reserve Uninterruptible Power supply Black start Load levelling Peak shaving Energy trading Island operation Integration of renewables October 19, 2017 Slide 3
Application Peak shaving (demand charge reduction) Reduction of demand during peak hours when the cost of electricity if high in order to reduce the energy cost (demand side) From the supply side, the goal is to avoid the installation of capacity to supply the peaks of a highly variable load. Peak shaving installations are often owned by the electricity consumer, rather than by the utility Energy storage provides fast response and emission-free operation, making it the optimal solution for such application. October 19, 2017 Slide 4
Application Power quality Power quality related to the load mainly means Harmonic filtering Load balancing PF correction (reactive power compensation) Energy storage system can provide the much needed power quality functionalities without stressing the battery. These features are basically built in the inverters. Benefits: Utility: Lower losses in the network, improved overall efficiency of operation End user: Adherence to international norms, improved operational efficiency, avoidance of penalty, lower losses, extended lifetime for equipment, October 19, 2017 Slide 5
Applications Islanding Black Start Smart grid: Peak shaving, Integration of renewables Virtual Generator Mode Network support for: Voltage regulation Frequency regulation/support BESS Power quality: Voltage balancing in neighborhood Harmonic mitigation Reactive power generation Power range: 20kW 2.5MW Multi communication capability: CAN Modbus TCP/RTU Flexible and modular design October 19, 2017 Slide 6
User implementation Users Applications Industrial, commercial and residential Renewable integrators Transmission and distribution operators Power stations Peak shaving Load leveling Frequency regulation Ramp rate control/ Capacity firming Power quality Spinning reserves October 19, 2017 Slide 7
Product portfolio Complete system Power conversation system (PCS) Energy storage batteries Higher level controller (EMS) based on PLC Optional items: MV transformer, switchgear Technical services (FAT, SAT..) Network/renewable plant control and optimization Control and protection AC Filter EMS** BESS control Grid ~ connection = BMS* BMS* BMS* Battery system October 19, 2017 Slide 8 *BMS - Battery management system **EMS Energy management system/ Master BESS control
Product portfolio Energy storage inverters range Typical grid connection levels Optimized ESI converters LV range ~25 kw 100kW rating ESI-S LV MV* range ~100 kw - 500 kw rating LV MV* range ~500 kw - 2500 kw rating ESI-M Batteries, super-capacitors ESI-I October 19, 2017 Slide 9 *Through step-up transformer
Product portfolio Battery system ABB used only Li-Ion batteries for ESM Battery management system - BMS Constant monitoring, system safety and reliability Long lifetime, high number of cycles Different battery models available for high power and energy applications Modular design capacity can be increased by adding battery racks ESM can be sized to offer needed capacity after certain number of years (EoL capacity) Tested in ABB research labs October 19, 2017 Slide 10
Product portfolio Energy storage device (battery) Li-Ion batteries: First choice as high energy density, high charge-discharge cycles Other type of batteries can be offered Selection of right batteries depending on specific application 585Vdc 1200Vdc (other DC voltages possible) System tested with world class batteries (LG, Samsung, Saft, Electrovaya, Nilar, ) Experienced team of engineers for application engineering October 19, 2017 Slide 11
Product portfolio Energy Management System (EMS) ABB s programmable logic controller (PLC) as high level controller Functionalities offered such as peak shaving, load shifting, frequency regulation, capacity firming, ramp rate control etc. System compatible with any other EMS October 19, 2017 Slide 12
Product portfolio Small and Medium systems Typical layout (indoor) October 19, 2017 Slide 13
Product portfolio Large systems Inverters Batteries Higher level controller (EMS) Documentation Optional services: FAT SAT Commissioning assistance Large systems are suitable mainly for outdoor (in container) installation HVAC and fire fighting system is included Range: 500s kw to 2500s kw October 19, 2017 Slide 14
Product portfolio Large systems Typical layout inside inverter container October 19, 2017 Slide 15
Product portfolio Large systems Typical layout inside battery container October 19, 2017 Slide 16
References Falbygdens Energi Falköping - Sweden ESI-I range three phase, three wire Year of commissioning - 2011 Goal of project: Study of integration of renewables Study of the ESI in a real application grid Battery: Li-ion from LG Power and energy rating: 75kW 135kWh Features: ESI-I and batteries Harmonic mitigation Power factor correction Load shifting Peak shaving October 19, 2017 Slide 17
References Nordhavn - Denmark Complete battery system for storage of renewable energy from a residential harbour district Connected to Nordhavn s electricity grid to supply 60 households with electricity for up to 24 hours Urban laboratory for energy solutions Solution: ABB s ESI Inverters Output: 630 kw Energy: 460 kwh Technology: Li-ion Commissioning: January 2017 October 19, 2017 Slide 18
References Oak Ridge - USA ESI-S 100A single phase Year of commissioning - 2012 Goal of project: Study of integration of renewable: solar panel Study of algorithms which optimize the network management Battery: Li-ion from GM (Volt car battery) Power and energy rating: 25kW 25kWh Features: Islanding Harmonic mitigation Power factor correction Remote communication: Modbus RTU October 19, 2017 Slide 19
References Fairbanks Alaska, USA Backup power in the event of power plant outage or transmission line equipment failure Emergency power source to feed energy to the grid until backup generation can come online 15 minutes power boost to get generators online, leading to 90 percent reduction of power blackouts due to grid faults Solution: BESS Power ratings: 27 MW - 15 minutes / 46 MW - 5 minutes Operation at temperatures -52 till +32 Ni-Cd batteries Commissioning: 2003 October 19, 2017 Slide 20
ABB EQmatic What is it? ABB EQmatic is a new range of compact and web-based stand-alone devices for energy management applications. They are used for monitoring, logging, displaying and analyzing consumption data of electricity, gas, water or heat meters via M-Bus. The user interface provides graphical analysis functions. October 19, 2017 Slide 21
EQmatic Main Features User Interface Configurable Dashboard Analytics Historical Data Analytics Usage Analytics Instantaneous Values Analytics Benchmark Periods Analytics Benchmark Consumer October 19, 2017 Slide 22
ABB EQmatic Why to use it? Improve energy efficiency ABB EQmatic is designed to enable the customer to allocate and monitor sub-metering data in order to improve energy efficiency and reduce costs. - Energy & Cost allocation - Reduce cost - Fulfil local regulations (e.g. ISO 50001; RT 2012) October 19, 2017 Slide 23
Circuit Monitoring Systems - CMS Brief description Circuit Monitoring Systems CMS is a unique ultracompact multichannel measurement system family for branch monitoring Slide 24
Circuit Monitoring Systems - CMS The range at glance CMS is a compact AC and DC multichannel branch monitoring system New control unit CMS-700 enlarges the portfolio for stand-alone operation and fulfills the state of the art encryption methods New open-core sensors can be used to retrofit into existing solutions, thanks to its special design Slide 25
CMS-700 Control Unit Security The CMS-700 is designed for communicate within maximum security and reliability Protocols include Modbus RTU, TCP and SNMP v1, 2 & 3 Using the new encrypted SNMPv3, utmost data security is guaranteed The contactless measuring process rules out potential sources of error right from the start The negligible amount of wiring required ensures maximum system stability Slide 26
SACE Emax 2 Power Controller The exclusive Power Controller function available on the new SACE Emax 2 circuit-breakers monitors the power managed by the circuit-breaker, keeping it below the limit set by the user. As a result of this more effective use, the peak of power consumed can be limited allowing savings on electricity bills. The Power Controller, patented by ABB, disconnects nonpriority utilities, such as for example electric car charging stations, during the times when consumption limits need to be respected, and connects them again as soon as it is appropriate. When required, it automatically activates auxiliary power supplies such as generator sets. No monitoring system is required: it is sufficient to set the required load limit on Emax 2, which can control any circuitbreaker located downstream, even if it is not equipped with a measurement function. In installations that are already equipped with energy management systems, the load limit can also be modified remotely.
SACE Emax 2 Ekip Touch SACE Emax 2 circuit-breakers are equipped with a new generation of protection trip units that are easy to programme and read. The Ekip Touch trip units measure power and energy with precision and save the most recent alarms, events and measurements in order to prevent faults to the installation or trip effectively when necessary. Network Analyzer Network Analyzer function is also available, which controls the quality of absorbed power in real time and with extreme precision. The Network Analyzer function allows the user to set controls on voltage in order to analyze the operation of the system: any time a control parameter overcomes the preset threshold, an alarm is generated. The accuracy of voltage measurements of Emax 2 is excellent at 0.5%.
SACE Emax 2 SACE Emax 2 circuit-breakers have been designed to be integrated directly into all types of switchgear and automation and energy management systems to improve productivity and energy consumption. Complete integration into smart grids. The integrated IEC61850 communication module enables connection to automation systems and intelligent networks (Smart Grids). Accurate measurements of current, voltage, power and energy are all available by means of the communication modules and allow the trip units to be used as multimeters. All circuit-breaker functions are also accessible via the Internet, in complete safety, through the Ekip Link switchgear supervision system and the Ekip Control Panel operator panel.