micro grid system of cimei island, taiwan · 2019-08-05 · demonstration of cimei smart micro grid...
TRANSCRIPT
-
Micro Grid System of Cimei Island, Taiwan
Chao-Shun Chen, Prof.I-Shou University
2019.08.09
2019 Fort Collins Microgrid
-
1. Population: 3,0002. Land Area: 7kM2
3. Diesel Generators: 4*1000kW4. Three Distribution Feeders(3.3kV)5. System Loading:1700kW/600kW6. Annual Electricity Consumption: 8M kWh7. Taipower Annual Service Loss: $4M
Cimei Island
-
Status of Renewable Energy on Cimei Island
1. PV System: 400kWp2. Energy Storage System(500kW, 600kWh)3. Wind Generator: 600kW(to be installed by 2019)
-
Power Generation of Cimei 155KW PV System (2015)
Spring 3/29
Summer 8/6
Autumn 10/3
Winter 12/28
-
Annual wind speed of Cimei Island (2015)
hour
-
System Diagram of Cimei Micro Grid
G4
G3
G2
G1RB 01
RB02雙湖饋線
RB03平和饋線
#1 MTR
#2 MTR
#3 MTR
#4 MTR
500 MCM863.5m
1845.9m
500 MCM2050m
#1749m
#1581.1m
#1120m
PV 25.3kWp七美鄉公所
500 MCM
#1235.2m
#11503.7m
#1214m
#1306m
既設PV155kWp
新設PV200kWp
#1123m
#1116.8m
PV30.4kWp
#1305.7m
#1425.4m
#1187.1m
#1102m
#1365.2m
#1503.3m
#1889.5m
#1316.9m
#1289.7m
#1339.3m
#1610m
#1342.1m
#1128.5m
#1105.6m
ESS
南港饋線
儲能系統250KW300KWh
太陽光電發電系統(智慧變流器)
台電七美綠能園區TPC Cimei Green Park
-
Objectives of Cimei Smart Grid Project
1. Reduce generation cost by high penetration of renewable energy
2. Determine the optimal capacity of PV, WG, Energy Storage System(ESS), and Diesel Generators
3. Execute the Economic Dispatch Control(EDC) of diesel generators according to the forecast of renewable energy
4. Enhance system power quality with coordinating control of diesel generators, PV smart inverters and ESS
5. Support the testing of system operation with zero carbon island
-
Demonstration of Cimei Smart Micro Grid 1. Intelligent µEMS for system operation and control of PV,
WG, ESS and diesel generators to achieve system servicepower quality.
2. Economic Dispatch Control of diesel generators consideringthe forecasting of system load and renewable energy.
3. Smart charging and discharging of ESS.4. Ensure system transient stability for PV shutdown/generator
tripping by fast power discharge of ESS.5. Enhance system voltage quality by coordinating control of
PV smart inverters, ESS and diesel generators.
-
Cimei Energy Management System
Green Park Control Center
Cimei Power Plant Control Room
-
Configuration of Cimei Intelligent µEMS
-
Schematic Diagram of Intelligent µEMS
PCS PCS PV inverter WG inverter
Customerloads
Distributionstation
Dieselgenerators
Powernetwork
PV panels Windgenerators
Li‐ion(#2 ESS)
Li‐ion(#1 ESS)
Dispatch workstation
AC networkDC network
Communication network
-
Control Sysem of Renewable Energy and ESS
-
PV System(355 KWp)
-
Energy Storage System (Li-On Battery + PCS)
-
System Network of Cimei Smart Grid
-
Computer Display of Cimei Intelligent µEMS
-
ESS(500kW/600kWh,Li-Ion Battery + PCS),300kWh(fast power discharging 1.3C),300kWh(slow charging/discharging 0.5C)。
Control Modes a. Transient stability (Fast power discharging with under freq.
trigger)b. RE smoothing (Slow power charging/discharging with
Moving Average Control Algorithm)c. System Peak load shaving (Slow power charging/discharging
considering profiles of system load and RE generation)
Control Strategies of Energy storage System
-
ESS control architecture of Cimei smart microgrid
-
PV smart inverter (V-PF, V-P, Freq.-P)
2019/5/10 19
-
Automatic PV generation control ( frequency-P )(2018.04.16)
-
System peak load shaving by ESS
-
System Frequency Response with ESS fast power discharging (60kW-60kW)
22
-
Transient Frequency Response of Cimei System after Generator DG1 tripping(2018.8.1)
饋線低頻卸載(57.3Hz)
ESS快速放電(370kW)
-
Smoothing of PV power generation by ESS
-
Power profiles of PV system and ESS after RE smoothing
-
Peak shaving of system net load profile by ESS
-
Power output of Cimei diesel generators for DG2 tripping
-
Profiles of ESS fast power discharging with UF triggering
-
Conclusions
1. Development of operation technology for Cimei Smart Grid to ensure service quality and security for micro grid with high penetration of renewable energy.
2. ESS with control strategies has been applied to perform fast power discharging to enhance system transient stability.
3. Power generation fluctuation has been mitigated effectively by ESS.4. Slow power charging/discharging of ESS has improved the system
loading factors considering daily profiles of system loading and RE generation.
5. Business model needs to be derived to achieve system sustainability for micro grid implementation.
-
Thanks for your attention