IEEE 1812:2014 pdf free download – IEEE Trial-Use Guide for Testing Permanent Magnet Machines
1.1 Scope
This trial-use guide contains instructions for conducting tests to determine the performance characteristicsand machine parameters of permanent magnet (PM) machines.The tests described may be applied tomotors and generators as needed, and no attempt is made to partition this guide into clauses applying tomotors and clauses applying to generators. It is not intended that this guide shall cover all possible tests, ortests of a research nature, but only those general methods that may be used to obtain the performance dataand machine parameters. The schedule of factory and field tests, which may be required on new equipment,is normally specified by applicable standards or by contract specifications. This guide should not beinterpreted as requiring any specific test in a given transaction or implying any guarantee as to specificperformance indices or operating conditions.
The term specified conditions for tests as used in this guide will be considered as rated conditions unlessotherwise agreed upon.Rated conditions apply usually to the quantities listed on the machine nameplate.
1.2 Purpose
Instructions for conducting tests to determine the performance characteristics and machine parameters ofPM machines are covered in this guide.Additional tests can be required by the customers and operators tosatisfy specific performance indices.
1.3 Organization of the guide
This guide consists of seven clauses. By following the IEEE 2012 style guide, the first three clauses aremandatory clauses for all new standards. Clause 1 gives an overview of the entire guide using the scopeapproved by the IEEE Standards Board. Clause 2 lists the normative references. Clause 3 includes thedefinitions. Clause 3 through Clause 6 are written in two parts, by following the structure of IEEE Std115TM1,2T
Clause 3 through Clause 5 constitute Part I and describe the steady-state and transient performance testprocedures. Clause 4 describes the condition and integrity tests，some of which may precede theperformance testing described in Clause 5 and Clause 6. Many of these tests are performed to assess theoverall health of the machine. Since the PM excitation is usually employed in the rotor，the statorconstruction is often similar to the stator of the wound-field synchronous machines. Therefore, many stator-specific tests can be applied to PM machines by following IEEE Std 115. Clause 4 describes the steady-state performance tests. The term steady-state is defined for these tests in 4.5.1.Clause 5 describes thetransient tests.These tests include retardation and sudden short-circuit tests.
Clause 6 constitutes Part ll of the guide and describes the machine operating characteristics, such as losses,efficiency, thermal capability, torque-speed characteristics, and torque ripple. In the initial ballot, a Clause8 was included to describe the test procedures for determination of model parameters. The Working Groupdecided not to include this clause for this ballot since there are many issues for different rotorconfigurations that have not been fully resolved to recommend the tests to the user. The publication of thisguide should encourage users to contribute to the future revisions to resolve the iesting issues forparameters in PM machines of various rotor configurations. References [B2],[B6], and [B8] can be usedas the basis for the next revision.
Where the test procedure for a PM machine is the same as that for a wound-field synchronous machine,reference to the test procedure in IEEE Std 115 is provided in lieu of duplicating the same information inthis guide.Consequently, the use of IEEE Std 115 in conjunction with this guide is recommended.