IEC TS 63349-2:2022

IEC TS 63349-2 ®
Edition 1.0 2022-02
TECHNICAL
SPECIFICATION
colour
inside
Photovoltaic direct-driven appliance controllers –
Part 2: Operation modes and graphic display
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IEC TS 63349-2 ®
Edition 1.0 2022-02
TECHNICAL
SPECIFICATION
colour
inside
Photovoltaic direct-driven appliance controllers –

Part 2: Operation modes and graphic display

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-1072-2

– 2 – IEC TS 63349-2:2022  IEC 2022
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Equipment configuration and operation modes . 7
4.1 Equipment configuration . 7
4.2 Power flow direction . 7
4.3 Operation modes . 8
4.4 Operation mode under different equipment configurations . 8
5 Graphic display . 10
5.1 General . 10
5.2 Information on display . 10
5.2.1 Required information on display . 10
5.2.2 Recommended information on display . 10
5.2.3 Elements of display . 11
5.2.4 Examples of display . 11

Figure 1 – Common elements on the display . 11
Figure 2 – Display of operation mode PA//P→A . 12
Figure 3 – Display of operation mode PAG//P→G . 12
Figure 4 – Display of operation mode PAS//S→A . 13
Figure 5 – Display of operation mode PAGS//G→AS . 14

Table 1 – Equipment notation . 7
Table 2 – Operation mode under equipment configuration PA . 9
Table 3 – Operation modes under equipment configuration PAG . 9
Table 4 – Operation modes under equipment configuration PAS . 9
Table 5 – Operation modes under equipment configuration PAGS . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAIC DIRECT-DRIVEN APPLIANCE CONTROLLERS –

Part 2: Operation modes and graphic display

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
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IEC TS 63349-2 has been prepared by IEC technical committee 82: Solar photovoltaic energy
systems. It is a Technical Specification.
The text of this Technical Specification is based on the following documents:
Draft Report on voting
82/1948/DTS 82/1984/RVDTS
82/1984A/RVDTS
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Specification is English.

– 4 – IEC TS 63349-2:2022  IEC 2022
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 63349 series, published under the general title Photovoltaic direct-
driven appliance controllers, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

INTRODUCTION
The distributed solar energy industry has been developing rapidly in recent years. Utilizing
photovoltaic (PV) installation to drive appliances directly is more and more popular among solar
energy applications, which will boost energy efficiency, simplify control system, reduce
dependence on electrical grid and expand solar energy application. Photovoltaic direct-driven
appliances (PVDDA) are an emerging type of PV installation. The PVDDA controller is an
essential component of the PVDDA that lacks standardization. When PVDDA is operating, users
might want to have a graphic display to monitor the real-time status and energy
generating/consuming situation, which is what this document focuses on.

– 6 – IEC TS 63349-2:2022  IEC 2022
PHOTOVOLTAIC DIRECT-DRIVEN APPLIANCE CONTROLLERS –

Part 2: Operation modes and graphic display

1 Scope
This part of IEC 63349 defines operation modes of photovoltaic direct-driven appliance (PVDDA)
controllers and describes one example of a graphic display. The graphic display is an interface
to PVDDA users, which uses easily understood graphics to show a real-time operation mode,
such as what equipment is installed, controlled and monitored in the system, which equipment
is generating power and how much it generates, and which equipment is consuming power and
how much it consumes. This helps with user’s interest, knowledge, planning on renewable
energy usage.
IEC 63349 is a series of standards for PVDDA controllers which can be used in various
appliances including air conditioners, water pumps, refrigerators, etc. These standards only
cover the requirements of PVDDA controllers.
Requirements for appliances are covered by their specific standards, for example, standards
developed by IEC TC 59 on performance of household and similar electrical appliances, or by
IEC TC 61 on safety of household and similar electrical appliances.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC TS 61836, Solar photovoltaic energy systems – Terms, definitions and symbols
IEC 61850-7-420, Communication networks and systems for power utility automation – Part 7-
420: Basic communication structure – Distributed energy resources and distribution automation
logical nodes
IEC 63349-1, Photovoltaic direct-driven appliance controllers – Part 1: General requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC TS 61836,
IEC 63349-1 as well as the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp

To be published.
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