The Evolution of EMS Architecture in CSGepcc-workshop.net/images/Presentations/Session2/2_12_The evoluti… · Parallel Operation in CSG has proved its advantages in optimizing the

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The Evolution of EMS Architecture in CSG(EPCC Workshop 2019)

Huafeng ZhouPower Dispatch & Control Center

China Southern Power Grid, China13/05/2019


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Outline

31

33

Today: Operation Smart System , OS2(2010-2020)2

Future: Cloud-Edge Collabration Platform (2020-)


254 million people

1.02 million km2

China Southern Power Grid Co., Ltd. (CSG) invests in, constructs and operates

power grids in the Guangdong, Guangxi, Yunnan, Guizhou and Hainan Provinces

Population

Service Area

Introduction of CSG


By the end of 2018, the installed generation capacity was 302GW

In 2018, the peak load was 169GW, and the electricity consumption was 1060TWh

Peak Load of the Past 15 years (GW)

Installed Capacity of the Past 15 years (GW)

Introduction of CSG


The imbalance of generation and load requires transmission of bulk power from west to east over 2000km.

Hainan

Guangxi

Guizhou

Guangdong in the east has the largest load (Peak load 109GW by 2018), close to 66% of the five provinces total, but only has 3.5% of primary energy source.

Yuannan & Guizhou in the west have more than 90% of primary energy source, most are hydro-power.

Guangdong

Yunnan

Hydro power storage up to 100GW

Introduction of CSG


8 HVAC + 8 HVDC + 2 UHVDC, with maximum transmission capability > 50GW,

Parallel Operation in CSG has proved its advantages in optimizing the allocation

of the energy and transmitting bulk power from west to east.

Introduction of CSG


• Real-time control

• Tightly coupled

• FES/SCADA/AGC/AVC/PAS/DTS/WAMS...

• Loosely-coupled

• Data sharing

• POC/OCS/OMS/BRT/MTT

• From power grid control to “Grid Security + IOT”

• Optimization/Cloud/Edge/AI/5G

EMS Architecture in CSG

EMS OS2 Could-Edge Collaboration

Introduction of CSG


31 Introduction

33

2

Future: Cloud-Edge Collabration Platform (2020-)

Outline


• Power system has been developed gradually from the small, isolated

grid to the large power interconnected grid.

• Complex power grid requires intelligent and efficient operation, which

is supported by the rapid advancement of computer, communication

and control technologies.

Evolution of Power Grid and its Control and Communication Systems


Various of applications/systems are developed to meet the challenges above,

however, The applications/systems are generally customized design and

independent development with single objective

• Larger and more complicated

• Extreme weather

• Energy-saving & environment

• Deregulation

Challenges to system operation in CSG


Lack of Top Level Design

Lack of Data Sharing

Lack of Intelligent Applications

Lack ofOpen,

IntegratedPlatform

Problems of EMS architecture and functions in CSG


Power Grid Operation Cockpit❶

Service-oriented platform, plug and play❷…

IEDs, Coordination between EMS and substation

systems

❸

IEDs, Integrated devices/data, Unified modelling❹

❺

In order to effectively solve the above problems, a new system framework (OS2-Operation

Smart System) has to be designed and implemented. All the systems/functions in control

centers/substations are considered to be integrated into this framework.

Idea of OS2


OS2 is comprised of subsystems at all levels of control centers and substations. Each

subsystem is divided into Basic Resource Platform (BRP), Operation Control System

(OCS), Operation Management System (OMS), Power grid Operation Cockpit (POC) and

Mirror system for Testing & Training (MTT) only for high-level control centers.

Horizontal OSB

Vertical OSB

Conceptual Design of OS2


(1) POC is designed as the topmost functional module of OS2 and provides “one-stop”

functionality for KPI monitoring, decision-making and control.

Power grid Operation Cockpit (POC)


• A systematic and clear KPI system (dashboard), instead of a large number of data, “tells” you the status of the power grid.

• Using BRP, POC can easily “get” all data you want, “see” each graph you want and “access” all application services you want.

• It is task-oriented, from KPI monitoring, data mining, decision-making and control, KPI back-to-normal.



Operational KPIs and Dashboard- According to the survey of GO15 (Very Large Power Grid Operators) in 2015, the average “Ideal

Number” of KPIs is about 35.- 38 KPIs listed as below may be the most necessary and accepted, in terms of safe, economic, qualified

and environmentally friendly operation from power generation, transmission, distribution to consumption.

classification KPI

system security

System ReliabilityEquipment ReliabilityForecast accuracy (load, interchange)Frequency FluctuationN-1 Frequency Disturbanceprimary frequency control reservesecondary frequency control reserveSpinning ReserveBus voltage deviationstability margin between transmission areasLoad rate of transmission linesLoad rate of transformersLoss of voltage of substationsNumber of circuits for supplying important customers

Status of self-backup generators of important customers

Total loss of power supply for important customersEmergency Standby of load shedding load loss due to power system faultCustomer loss due to power system fault Ratio of N-1 power loss

classification KPI

power quality

FrequencyGenerator performanceArea Control Error (ACE)primary frequency control reserveReserved Capacity of Down RegulationHydroelectric StorageAvailable Days of fossil fuelsBus Voltage of Transmission System

economy

Economic performance of dispatchGeneration powerOn-grid powerelectricity purchasing costPower transferredPower loss of transmission system

Power Transmission Charge Rate

environmentOutput of Clean EnergyCarbon emission per KWHSulfur emission per KWH



Operational KPIs and Dashboard- The colors in green, yellow and red indicate different operational states, respectively.- Clicking on one of the dashboards, the related KPIs are displayed in detail. - Clicking on one of the KPIs, a customized KPI scenario will be displayed for information mining.

normal operationprecaution

alarming



(2) Basic Resource Platform (BRP) : It is open and service-oriented, and consists of four layers (1-virtualized software and hardware resources, 2-public services, 3-data center, 4-operational service bus )

- Service Oriented: a series of public application or data services can be used in different scenarios.- Data Sharing: all public data are modelled and stored in real-time data center. - Plug and Play: standardized interfaces make the information interactive and the modules “plug and play”.

Vertical O S B

Operational Data Center

User Management Service

Power Grid GIS Service

Remote graphics browsing service

Graphics generation service…

Horizontal OSB (Service)

BRP

OCS OMSPOC

(Clould) Basic Software/Hardware/Database Platform/Service

AdapterPlug and Play

Open and Loosely-coupled BRP


(3) Smart Remote Communication and Control Gateway (SRCCG) : An integrated device, builds an intellegent interactive platform between control centers and substations

- direct data-acquisition and direct data-delivery- acquisition, storage, processing and transmission of substation data, models, and graphs. - remote browsing, source side maintenance, sequence control, volt-VAr control, etc.

数据整合智能应用

SRCCG

Smart Phone

integrated and smarter

protection relay engineeringworkstation

equipment status awareness

RTUmetering PMU

A New Generation of RTU


31 Introduction

33

Today: Operation Smart System, OS2 (2010-2020)2

Outline


• Challenges: massive consumer integration (>1 million), large amounts of renewable

penetration, cyber attack, various market utilities

• Opportunities: OS2 platform, IT technology prosperity, e.g. cloud computing, edge

computing, 5G, artificial intelligence, Blockchain...

Distributed generation

Integrated community

Renewables Retail company

Virtual power plant

Electric vehicle

Massive cosumer nodes Innovation trigger

Peak of inflated expectation

Through of disillusion-ment

Cloud computing

Big data

Augmented reality

Blockchain5G

Artificial intelligenceEdge computing

Slope of enlightment

Plateau of productivity

Gartner hype cycle

Expectation

Time

Challenges and opportunites in the future


• System control for now:

centralized , finite control objects,

closed ecosystem, schedule

operating mode

Finite control objects

Semi-auto operation

Centralized control

• System control in the future:

centralized+distributed, nearly

infinite control objects, open

ecosystem, market operating

mode

Infinite control objects

Auto cruise

Centralized+distributed control

∞∞

∞

System Control of CSG in the Future


• Cloud platform: ü Based on smart dispatch

ü Supports both system operation and market services

ü Develops data and application value-added services

• Edge nodes: ü Locally configured as intelligent agents

ü Provide safe interaction and value-added services

ü The current OS2 systems are special edge nodes

Cloud based IT resources

Public component services

AI platform based on big data

Smart app Control command execution

Autonomousmarket services

Automatic system

operation

Data Services

Value-added

services

Intern-et/4G/5

G

Edge node: DG

Intern-et/4G/5

G

Edge node: EV

Edge node: virtual plant

Intern-et/4G/5

G

Dispatch data netw

ork

Edge node: regional OS2

Edge node: provincial OS2

Edge node: locational OS2

Dispatch data network

Traditional plant and substation

Conceptual Design of Cloud-Edge Collabration Platform


CSG looks forward to working with our global counterparts for a brighter tomorrow through exchanges and sharing of experiences.

Welcome to CSG !

Documents

The Evolution of EMS Architecture in CSGepcc-workshop.net/images/Presentations/Session2/2_12_The evoluti… · Parallel Operation in CSG has proved its advantages in optimizing the