in Peninsular Malaysia Mohd Yusof Rakob (yusofrakob@yahoo.com) 1 - - PowerPoint PPT Presentation

Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic (PV) Power Generation in Peninsular Malaysia

Mohd Yusof Rakob (yusofrakob@yahoo.com)

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Progress on this work so far

Work done Date 1st presentation at Malaysian Grid Code Committee (MGCC) meeting – Introduction of Large Utility Scale Solar Photovoltaic (PV) Power Generation MGCC Meeting 25 March 2014 2nd presentation at MGCC meeting – Proposal for changes of the Malaysian Grid Code MGCC Meeting 19 Sep 2014 Workshop on Large Utility Scale Solar Photovoltaic (PV) Power Generation Connection to the Grid System – Proposal for changes of the Malaysian Grid Code 22 Dec 2014

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

General Topology of a Solar PV Power Station

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Definition of terms; Introducing Power Park Unit and Module

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Note: The terms of Power Park Unit and Power Park Module are not yet used in MGC. Power Park Units 1,2,..n and Power Park Modules 1,2,..n may or may not be identical.

Power Park Unit 1 Power Park Unit n Power Park Module i…n Power Station Reactive compensation (if used)

Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Definition of terms; Introducing Power Park Unit and Module

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Note: * (black font) MGC Ver 1/2013 Part I: Glossary and Definitions * (red font) Terms & definitions are under consideration in this proposal

Terms Definition

Generating Unit* Unless otherwise provided in the Grid Code, any Plant and/or Apparatus which produces electricity, including, for the avoidance

• f doubt, a CCGT Unit.

Power Park Module* A collection of one or more Non-Synchronous Generating Units (registered as a Power Park Module under the PC) that are powered by an Intermittent Power Source, joined together by a System with a single electrical point of connection directly to the Transmission System. The connection to the Transmission System may include a DC Converter. Power Park Unit* An individual Generating Unit within a Power Park Module. Power Station* An installation comprising one or more Generating Units or Power Park Modules (even where sited separately) owned and/or controlled by the same Generator, which may reasonably be considered as being managed as one Power Station.

Adapting Grid Code/Standards with Intermittent Power Source

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Parameters UK

(Grid Code)

USA

California

India

(Grid Code)

Germany (Tennet) Australia (SA) Submission of forecast output (declaration) √ √ √ ⃝ √ Active power control (set point) by GSO √ √ √ (wind) √ (down) √ Active power control (ramp up) - auto √ √ √ (wind) √ √ Active power control (ramp down) - auto √ √ √ (wind) √ √ Frequency response (high freq.) - auto √ √ ⃝ ⃝ √ (civil) Frequency response (low freq.) - auto √ √ ⃝ √ √ (civil) Reactive power (Q) control - auto √ √ ⃝ √ √ Voltage control – auto and by set point √ √ ⃝ √ √ Fault Ride Through capability - auto √ √ √ (wind) √ √ Submission of system parameters and simulation model √ √ ⃝ √ √

√ = YES; ⃝ = NO

Revision of MGC; Summary of the proposed changes

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Objectives

To study the existing MGC to examine the parts which need to be modified in order to facilitate integration of large solar PV connected to the Grid System of Peninsular Malaysia, by: 1. Removing barriers and ambiguities which otherwise are against the integration 2. Insert new requirements to be complied by large solar PV Generators which are required for maintaining security and reliability of the grid system.

Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Revision of MGC; Summary of the proposed changes

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Scope

Parts Code Remarks Preface (P) Part I Glossary and Definitions (GD) Part II Introduction and Purpose (IP) Part III General Conditions (GC) Part IV Planning Code (PC) Including appendices PCA.1 ~ 8, App B Part V Connection Code (CC) Including appendices CCA.1~4 Part VI Operation Code (OC) Covers OC1~11 including appendices Part VII Scheduling and Dispatch Code (SDC) Covers SDC1~3 including appendices Part VIII Data Registration Code (DRC) Part IX Metering Code (MC) Note: * (black font) as per MGC Ver 1/2013 * (red font) Changes to MGC Ver 1/2013 are proposed

Main highlights of the proposed changes (additions for PV Power Generation)

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Forecast output profile (Active Power) capability based on Good Industry Practice Good Industry Practice refers to the exercise of that degree of skill, diligence, prudence and foresight which would reasonably and ordinarily be expected from a skilled and experienced operator engaged in the same type of undertaking under the same or similar circumstances. Forecasting output profile (Active Power) based on Good Industry Practice is required to enable :

• An understanding of the possible profile of output;
• Establishing the level of energy input from the Intermittent Power Source for

monitoring and Ancillary Services and will be used to provide GSO with advanced warning of solar power shutdown;

• Scheduling the operations of Generating Units which shows the combination
• f Power Park Units running in relation to any given MW output.

Main highlights of the proposed changes (additions for PV Power Generation)

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Reactive Power at the Connection Point

1 Power Factor 0 % 10 % 20 % 30 % 40 % 50 % 60 % 70 % 80 % 90 % 100 % P available [pu] 0.95 underexcited/leading

• verexcited/lagging

Reactive Power Requirement during normal operation 0.85 0.95

Main highlights of the proposed changes (additions for PV Power Generation)

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Active Power output frequency response capability at the Connection Point

Frequency [Hz] 0 % 10 % 20 % 30 % 40 % 50 % 60 % 70 % 80 % 90 % 100 % Active power output MWAC * [pu] 47.0 Active Power Reduction during over frequency 47.5 48.0 48.5 49.0 49.5 50.0 50.5 51.0 51.5 52.0 52.5 * depending on solar radiation

Main highlights of the proposed changes (additions for PV Power Generation)

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Frequency control device equivalent droop between 3% and 5%

Main highlights of the proposed changes (additions for PV Power Generation)

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Reactive Power output under steady state conditions

1.1 Power Factor Under- excited (leading) Overexcited (lagging) 0.95 U (PCC) [pu] 0.95 1.05 0.90

Reactive Power Requirement during normal operation

0.95 0.90 0.85

Main highlights of the proposed changes (additions for PV Power Generation)

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Fault Ride Through Capability

1.2 1.0 0.8 0.5 1 2 3 4 5 Maximum value of the three line-to-line network voltages U [pu] t [s] minimum occuring operating voltage maximum occuring operating voltage 0.15 1.5 0.9 1.1 Disconnection of the Facility allowed Disconnection of the Facility allowed moment of fault occurance moment of fault clearance

Main highlights of the proposed changes (additions for PV Power Generation)

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Submission of system parameters and simulation model Transfer function block diagram representation including parameters of AC filter and reactive compensation equipment control systems, including any time delays, encompassing the following control functions:

• Frequency and/or load control systems;
• small signal modulation controls such as power oscillation damping

controls or sub-synchronous oscillation damping controls, if installed;

• Reactive Power control at converter ends for a voltage source converter

Details of the systems described in transfer function block diagram shall show transfer functions of individual elements and in a form that is compatible with the software specified by Grid Owner.

Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic (PV) Power Generation in Peninsular Malaysia

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

End of Presentation

Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic (PV) Power Generation in Peninsular Malaysia

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Grid Requirements For Connection and Operation of Large Scale Solar Photovoltaic Power Generation in Peninsular Malaysia, 17 Feb 2015

Q&A