diff --git a/model/ddl.sql b/model/ddl.sql
index ff02dce..230bdf7 100644
--- a/model/ddl.sql
+++ b/model/ddl.sql
@@ -32,6 +32,7 @@ CREATE TABLE PUBLIC.COMPONENT_TYPE (
 CREATE TABLE PUBLIC.GRID (
     ID BIGSERIAL PRIMARY KEY,
     NAME VARCHAR(64) NOT NULL DEFAULT '',
+    TAG_NAME VARCHAR(32) NOT NULL DEFAULT '',
     DESCRIPTION VARCHAR(512) NOT NULL DEFAULT '',
     OP INTEGER NOT NULL DEFAULT -1,
     TS TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
@@ -41,6 +42,7 @@ CREATE TABLE PUBLIC.ZONE (
     ID BIGSERIAL PRIMARY KEY,
     GRID_ID BIGINT NOT NULL,
     NAME VARCHAR(64) NOT NULL DEFAULT '',
+    TAG_NAME VARCHAR(32) NOT NULL DEFAULT '',
     DESCRIPTION VARCHAR(512) NOT NULL DEFAULT '',
     OP INTEGER NOT NULL DEFAULT -1,
     TS TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
@@ -52,6 +54,7 @@ CREATE TABLE PUBLIC.STATION (
     ID BIGSERIAL PRIMARY KEY,
     ZONE_ID BIGINT NOT NULL,
     NAME VARCHAR(64) NOT NULL DEFAULT '',
+    TAG_NAME VARCHAR(32) NOT NULL DEFAULT '',
     DESCRIPTION VARCHAR(512) NOT NULL DEFAULT '',
     IS_LOCAL BOOLEAN NOT NULL DEFAULT FALSE,
     OP INTEGER NOT NULL DEFAULT -1,
@@ -106,6 +109,7 @@ CREATE TABLE PUBLIC.TOPOLOGIC (
 CREATE TABLE PUBLIC.BAY (
     BAY_UUID UUID PRIMARY KEY DEFAULT GEN_RANDOM_UUID(),
   	NAME VARCHAR(64) NOT NULL DEFAULT '',
+    TAG VARCHAR(32) NOT NULL DEFAULT '',
   	TYPE VARCHAR(64) NOT NULL DEFAULT '',
     UNOM DOUBLE PRECISION NOT NULL DEFAULT -1,
     FLA DOUBLE PRECISION NOT NULL DEFAULT -1,
diff --git a/model/dml.sql b/model/dml.sql
index af8838d..f40f0b5 100644
--- a/model/dml.sql
+++ b/model/dml.sql
@@ -2,23 +2,23 @@
 
 -- grid initialization example
 INSERT INTO 
-	PUBLIC.GRID (NAME, DESCRIPTION, OP)
+	PUBLIC.GRID (NAME, TAG_NAME, DESCRIPTION, OP)
 VALUES
-	('电网','电网的描述',1);
+	('电网','grid000','电网的描述',1);
 
 
 -- zone initialization example
 INSERT INTO 
-	PUBLIC.ZONE (GRID_ID, NAME, DESCRIPTION, OP)
+	PUBLIC.ZONE (GRID_ID, NAME, TAG_NAME, DESCRIPTION, OP)
 VALUES
-	(1 ,'区域','区域的描述',1);
+	(1 ,'区域','zone000','区域的描述',1);
 
 
 -- station initialization example
 INSERT INTO 
-	PUBLIC.STATION (ZONE_ID, NAME, DESCRIPTION, IS_LOCAL, OP)
+	PUBLIC.STATION (ZONE_ID, NAME, TAG_NAME, DESCRIPTION, IS_LOCAL, OP)
 VALUES
-	(1 ,'厂站','厂站的描述',TRUE,1);
+	(1 ,'厂站','station000','厂站的描述',TRUE,1);
 
 
 -- supported standard component type