2 MW Flywheel System Integration

Transcription

1 2 MW Flywheel System Integration Colin Young System Engineer Kodiak Electric Association Will Galton Senior Project Manager ABB Inc.

2 Project Overview 2 MW electric crane brought in to Kodiak to replace aging diesel crane Study of existing electrical grid to determine what system upgrades were needed Implementation of Flywheel Energy Storage System (FESS) Results of FESS and crane on Kodiak electric grid

3 System Stats 27 MW Peak Load 6,000 Meters 203 Miles Overhead 141 Miles Underground 99.8% Renewable Energy Vertically Integrated

4 KEA Load Mix % of KWH PROCESSORS Processors, 30 INDUSTRIAL Industrial, 29 COMMERCIAL Commercial, 15 RESIDENTIAL Residential,

5 Kodiak Electric One line Diagram

6 New MATSON Crane Converted From Diesel to 2 MW Electric ABB Drives and Electrical ZPMC Crane Manufacturer

7 Electric Power systems, Inc (EPS) study

8 Overview of Solution

9 Overview of Solution PowerStore Flywheel Components Flywheel Flywheel converter Grid converter Connection to grid ECMS controller 440Vac 50/60Hz Fixed Frequency Grid Converter Real Power Reactive Power ECMS Flywheel Converter Real Power SCADA, System Control 440Vac Hz Variable Frequency MG 2.9T 1,800 3,400 RPM Inverters 500 1,500 kva 18 MWs Flywheel

10 PowerStore Grid Stabilizing Generator Inverter Technology Power Converters are based on ABB PCS100 Converter pairs (flywheel and grid) are housed in racks Depending on size of PowerStore different size racks are used Racks are suitable for indoor installation only

11 PowerStore Grid Stabilizing Generator Flywheel Technology Magnetic Support Top Bearing Top Guard Bearing Rotating Rectifier Excitation Generator Main Machine Flywheel Bottom Bearing Performance Data: Net. energy content 16.5 MWs Max Input/output power 1650 kw Speed range 1800 to 3400 rpm Total weight 6000 kg Rotor weight 2900 kg Idling losses ~12 kw Greasing frequency 5 years Bearing service life 8 years Features: Helium filled Magnetic support Redundant bearings Bottom Guard Bearing

12 PowerStore Grid Stabilizing Generator Control and SCADA ECMS controller interfaces to both inverters and flywheel Automatic start/stop, temperature derating, state of charge control Frequency and voltage control and power/soc sharing between multiple PowerStore units Web based graphical user interface Communication link to upper level KEA SCADA and power management Data recording and alarm management

13 PowerStore Grid Stabilizing Generator Control modes Grid Support Mode Parallels with conventional grid Frequency support enabled Voltage support (like a STATCOM) disabled Renewable energy smoothing Absorb & inject real power to smooth wind farm Crane Support Mode Peak lopping limit crane demand on feeder / network Crane de-rate under special circumstances

14 Crane 12 Hour Endurance Test Crane Full Power Mode (Endurance Test), 23 Ton Container, : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :52.0 KW Time (MM:SS:MS) Crane Power Total FESS Power Total Frequency

15 Typical Crane Usage :53:13 20:53:23 20:53:31 20:53:47 20:53:54 20:54:01 20:54:10 20:54:20 20:54:31 20:54:38 20:54:44 20:54:50 20:54:59 20:55:08 20:55:21 20:55:33 20:55:44 20:55:52 20:56:09 20:56:27 20:56:45 20:57:03 20:57:14 20:57:22 20:57:28 20:57:35 20:57:53 20:58:07 20:58:29 20:58:39 20:58:47 20:58:55 20:59:03 20:59:19 20:59:24 20:59:30 20:59:36 20:59:42 20:59:53 21:00:02 21:00:13 21:00:20 21:00:29 21:00:42 21:00:49 21:01:04 21:01:20 21:01:28 21:01:37 21:01:46 21:01:56 21:02:09 21:02:18 21:02:26 21:02:34 21:02:45 21:02:53 21:02:58 21:03:04 21:03:22 21:03:38 21:03:50 21:04:01 21:04:07 21:04:14 21:04:21 21:04:41 21:04:48 21:04:53 21:04:58 21:05:06 21:05:16 Power (kw) Time (s) 3/7/2016 Crane operation Crane Flywheel Frequency

16 Crane De rate Mode Crane Derate Mode (500 kw Max), 40 Ton Container, : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :04.0 KW Time (MM:SS:MS) Crane Power Total

17 Flywheel Frequency Support Testing Power [kw], State of Charge [%] MW DG Trip (June 5) 12:59:5513:00:0513:00:1513:00:2513:00:3513:00:4513:00:5513:01:0513:01:1513:01:2513:01:3513:01:4513:01:5513:02:0513:02:1513:02:2513:02:3513:02:4513:02:5513:03:0513:03:1513:03:2513:03:35 Time [hh:mm:ss] Frequency [Hz] K1 P K2 P K1 SoC

18 Flywheel Crane Mode/Frequency Support Mode 3/7/2016 Crane operation Power (kw) :53:13 20:53:14 20:53:14 20:53:16 20:53:17 20:53:18 20:53:19 20:53:20 20:53:21 20:53:22 20:53:23 20:53:23 20:53:25 20:53:25 20:53:26 20:53:27 20:53:28 20:53:29 20:53:30 20:53:31 20:53:32 20:53:33 20:53:33 20:53:35 20:53:35 20:53:37 20:53:40 20:53:42 20:53:45 20:53:46 20:53:47 20:53:47 20:53:48 20:53:48 20:53:49 20:53:50 20:53:51 20:53:51 20:53:52 20:53:54 20:53:54 20:53:56 20:53:56 20:53:57 20:53:58 20:53:59 20:53:59 20:54:00 20:54:01 20:54:01 20:54:02 20:54:02 20:54:03 20:54:04 20:54:05 20:54:06 20:54:07 20:54:08 20:54:09 20:54:10 20:54:12 20:54:13 20:54:14 20:54:15 20:54:15 20:54:16 20:54: Time (s) Crane Flywheel Frequency

19 Flywheel Characteristics 85% Round Trip Efficiency 27,000 KWH Monthly Fault Currents do not exceed 200% of Inverter Rating (4 MW Combined) Cooling SCADA Integration Frequency Support Limitations (16.5 MWs per Flywheel) ABB Customer Support

20 Project Economics KEA Total Cost $3.5 M Feeder Ties $1.1 M Site Preparation, Feeder Tap, FESS $2.4 M MATSON Contribution $400,000 City of Kodiak Contribution $400,000

21 Planning Process From ABB Side Work with KEA to understand technical requirements for crane integration. Controls custom built for respective crane and KEA grid. Assist local engineering house for foundation designs. Logistics Delivery to Kodiak. Full power testing FAT in lower 48. Remote access for monitoring and control.

22 QUESTIONS